ML083120229
| ML083120229 | |
| Person / Time | |
|---|---|
| Site: | Prairie Island  |
| Issue date: | 09/18/2008 |
| From: | Xcel Energy |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| Download: ML083120229 (299) | |
Text
{{#Wiki_filter:XcelEnergy-PRAIRIE ISLAND NUCLEAR GENERATING PLANT LICENSE RENEWAL ENVIRONMENTAL REPORT ADDITIONAL INFORMATION I I1 Documents Requested During NRC Environmental Review Environmental Health & Waste Issues Binder I of I
Prairie Island NuWr Generating Plant NRC Docur Request List Item Number Document Reasoning Kate Lenning PROPRIETARY - Follow-up to questions from Kate Lenning (typed responses) - 1 Submitted under separate transmission Privileged and Confidential PROPRIETARY - Waste Management Program Procedure/Waste Management Internal Procedure - 2 Guidance Manual - Submitted under separate transmission Copyright PROPRIETARY - Environmental Management Baseline: Pages 18,22-25, 28-32, 36-37 Internal Procedure - 3 - Submitted under separate transmission Copyright PROPRIETARY - Domestic Water and Sewer System, Rev. 7 - Submitted under Internal Procedure - 4 separate transmission Copyright 5 2004 Hazardous Waste License Application Public 6 2005 Hazardous Waste License Application - Public 7 2006 Hazardous Waste License Application Public 8 2007 Hazardous Waste License Application Public 9 2008 Hazardous Waste License Application Public PROPRIETARY - Regulated Waste Management &Hazardous and Non-Hazardous Materials Storage, Disposal and Labeling Requirements - Submitted under separate Internal Procedure - 10 transmission Copyright Minnesota Emergency Response Commission. Hazardous Chemical Report. 2008. 11 (EPA 2007) Public Minnesota Emergency Response Commission. Hazardous Chemical Report. 2007. 12 (EPA 2006) Public Minnesota Emergency Response Commission. Hazardous Chemical Report. 2006. 13 (EPA 2005) Public 14 Air Emission System Permit 04900030-003 with tables and Appendix B Public PROPRIETARY -2007 MIDAS Data Performance Tracking - Submitted under separate 15 transmission Privileged and Confidential PROPRIETARY - 2008 Meterological Performance Data - Submitted under separate 16 transmission Privileged and Confidential 17 Air Quality Binder #2: Climate of MN Public 18 Air Quality Binder #2: Wind roses Public 19 Air Quality Binder #2: Query results Public PROPRIETARY - "Public Exposure Impact" from SGR-Related Additional Information 20 Binder - Submitted under separate transmission Privileged and Confidential PROPRIETARY -Projected dose to workers during SGR project - Submitted under 21 separate transmission Privileged and Confidential PROPRIETARY - Projected increase in radiological waste during SGR project - 22 Submitted under separate transmission Privileged and Confidential Guidelines for operating an interim on site low-level radioactive waste storage facility 23 2/12/08, public version Public PROPRIETARY r Interim storage of low and intermediate level wastes: Guidelines for Internal Procedure - 24 extended storage. Technical Report, EPRI - Submitted under separate transmission Copyright PROPRIETARY - Email from J.L. Payton to R.L. Vincent, Subj: REMP anomalies for 25 last 5 yrs - Submitted under separate transmission Privileged and Confidential Page 1 of 8 Rev. 9/18/08
Hazardous. Waste License Application CIA
.in.esota.
Pollution.Control Agency, MARIMajorS52ý, LafaytteRo-N St. Paul,MN 55155 WH: WMND04953-7'7t 0,ta --- -- . .. - T"I Pairi e Island-Nuclear- Pit . . Out of,BUsiess as of: (date)______________________
- 3. 717Wakonade rE. ". *1 Part 1--Ge'neralUInformation CORRECTIONS ONLY I
,Welch, MN5 1. GeneratorilD#>*.,:r':-*"-. * -_ . .. . . .4. Goodhue County .
(If you updatedthe generatorID#, complete Part la on last page of this form.) Mailing Address 2. Company'Name " _"_ _. ._. JUDY GRANT 3. Location Address XCEL ENERGY - PRAIRIE ISLAND NUCLEAR PLT 1-717 WAXKONADE-BR E- q1 q ill'o/I# mn-all- RS ? (If you updatedthe location Address, complete Part lb on last page of this form.)
- 4. Locati&onCo t. -- . -
-5.-Mailing"Adcdres kII"I flet-MJ-m4-S FS~
6-:.'u .rant" .. 7. 612/330 .2861
.
- 6. Contact,-'Person __. _"___ _____ ... _-_ .
- 8. Tax ID:a* 3j*03 r.4-.-:.- . - -.
(Contact person must sign in Part3 on last page ofthis forrnj. 9 Business Type Descnptio*n-'- 7. Telephone Number ( - NAICS Code: 221113.'-',ý "" .
- 8. Minnesota or Federal Tax ID#:. ?'631 .
SIC CODE: 4911
- 9. Business Type Description check the box at the rightand Generator Size: Generation, SQG complete part Ic on the last page of this form ifyour NAICS and/or SIC code ED-Part 2 - Waste Stream Information for 2003 is not preprintedin box 9 at the left. See.last page for complete instructions.
LUCTIONS: Complete one form for each location. Fill Out the shaded area for each waste produced during 2003. Put a line through wastes no Produced. For wastes not preprinted below: If you are a Very Small Quantity Generator, add the wastes to the list after the last preprinted. p~r item. Ifyou are a Large or Small-Quantity.Generator,.complete a Management Plan Short Form for each new waste... See Application Instructions for d6tails. Return form by Feb 07, 2004. Inventory Code(2- Waste . * -- Amount Previously Mgmt invetoryCode(2-4 t ame-of. Hazardous WasteReotdMhd
# Or -digi ) ,...... Reported _Method Wastesipeeviously reported on'2002 report:
001 D001 SOLVENT; NON HALOGENATED 58 P BF 002 MN02 SEWERED LAB WASTE .7P, p.- SG 003 D039 SOLVENT, HALOGENATED 15 P BF 004 MN02. " CHEMICAL, FORMALDEHYDE CP IT 006 MN03. MINERAL OIL, PCB CP IT 007 D001 PAINT RELATED MATERIAL . 2011 P BF 011 D008 USED OIL, GREASE 0 G RB. 0,12 D007 WOOD PRESERVATIVE CP IT 013 D007 HAZARDOUS WASTE SOLID, METAL 757 P BF 014 D002 .. CORROSIVE LIQUID, 81 P MM 015 D022 EXPIRED CHEMICALS, HAZARDOUS CP 1IT 016 D007 WATER, METAL CONTAMINATED .17 1 P .. MM 018 D001 AEROSOLS .6 . "
- 6P BF MN03 . ELECTRICAL EQUIPMENT, PCI . - P LD 2F002ý Rags and Sorbents, Sol.vet Copt*"....ed P1.3- BF -
023 MN01 . CORROSIVE SOLIDS : .. .. P SZ 024 0001 OXIDIZER, LIQUID . . P . SZ 025 'MN01 BORON TRIFLUORIDE . * . P IT
Part 2 - Waste Stream Information for 2003 Continued MENUMMMUMA e 11.
'ibously iorted On2 1026 MN03-- IPM'Solids LDý
.0
ner*l Information Explanations: Complete this section only if you have made changes to Part 1.
, CaaPd hss t ne 1-Gen erat or. Pi n e)torli . *. -
iiLase~iidicate why .the generator iD# *was~corrected: .* ___-_*
* "['lrDuphcatelD# for. the same site(Be sure to venfy that location addresses* are .the same') ":....'- .. ** ,,.°:*
..El EPA lD# was obtained (writeEPA ID# here:) "__.__._________..______.__"__"___._____*________ -__.
"-Moved/Changed locations (Complete 'Partlb" below.)
E .NoJD#,on front of form.. El Other-(explain) Part ib: Changes to line 3, Location Address Please indicate why the Iocation address was corrected:
- l Moved waste generating activities to another location. Complete a "Notificationof Regulated Waste Activity Form' for the new.
location,* if you haven't already done so, and submit the completed form with yourcompleted License Application;,a new ID# will be Zissued for the newv lOcation. The "Notification of g - Activity Formis:availableon-line at
*:.,.,:www~pca.state.mn.us/pubhications/w-hw7-09.pdf.- . .; ;:- .- .,..-,..= *;*-.. *. ... ...-. . . .. ::,.
Elr-Streets'and/or street numbers changed by-911 ,(Emergency) System :: .. '.,, *L:,*.K-i.i:, . :." .. . . . "". , ':-*.i
.-.. [ Propertuincorporated into city limits and~street~was renamed. * .. :. .. .. * .-=-*_**:::... ... :::'.*-7*
El rec d rsin]Icnever at site address listed on front.l .- . - - - .. ...-.. : -. '.,":*;,. ..-.- .* .m. i ]Not a chan!ge; nlocation;Justa clarnficationof the addresson the front... ;?* :,,:.,,.. " * "... .. :......- El[ Other "(explain*)i*!,*.; .. . .' : . . . :*: :*'-:i *.' ' : ":. . ... " . Part lc: Business Type Description. Find your NAICS code by going to.www.census.gov,/epcd/wwwlnaics.html.
.The passage of the North American Free Trade Agreement (NAFTA) mandated a change in the system that identifies and classifies businesses*
and industries. The previous system, known as the Standard Industrial Classification (SIC) System, has been replaced by the North American Industry Classification System (NAICS), which is more comprehensive. Please log on to www.census.gov/epcd/www/naics.html to *look o ur NAICS. code and/or convert your SIC code, which is preprinted on the front page of this application, to the appropriate NAICS code.. kuydo not have access to the intemet and your SIC code is not preprinted on the front page of the applicaation, please provide a brief lanation of your business or the services you provide and staff will assign an appropriate NAICS code.
- _" _*_-
part 3 - Read and Sign Certification Below. . Check a box below if applicable. Keep a copy of your completed license application for at lea~st'-ears.". Mail the original, corhmbleted application to the MPCA at the address below. El My business produces-less than 10 gallons of waste.per year.
.. My business d6es not generate a hazardous waste at the location address on the front of this form.
- My business no:lorgeroperates at the location address on the front.
Y t tuAC equest Additional Information... visit our web site at www.pca.state.mn.us/waste/pubs/business.html.
- Please send me more information on the Special Waste Pilot Project (#2.22) (www.pca.state.rnnus/publicationslw-hw2-22).
.[j] Please send me more information on.VSQG Collection Sites (#2.51) (www.pca.state.mn.us/publications/w-hw2-51l.pdf).
Please send me a listing of the fact sheets available on complying with the Hazardous Waste Rules (#0.00)
. (www.pca.state.mn.us/publications/w-hwO-00.pdf).
Pollution Prevention can save your business time and money.. Non-regulatory programs can be contacted at the numbers below to learn more about the Pollution.Prevention opportunities, available to you. if you would like to be contacted by the Minnesota Technical Assistance Program (612/624-1300) please check the box at the left. Return this application by Feb 07, 2004 to: Minnesota Pollution Control Agency, MAR/Majors... 520 Lafayette Road:N., St. Paul, Minnesota 55,155-4194'
HzardOuHazdou Waste License Ap Appliatio picain Cee
' . CD Minnesota Pollution Control Agency, MAR/Majors, 520 Lafayette Road N, St. Paul, MN 55155 WH LtAs**-a-Ars~~toAd
- . .. Ooa.Check box 77______
-7 1_ ~ JS'CbdeJ-~-
I MN04957j80 - - - _- 1r:~.: TaxI
" . -"ech MN 55089... ___ __ ...... 1li-Generator-ID# . . ....... . .- :....
___
- ____
4- _.- . . .
"Goodhue County-*
- .... :...* _* -*,. *(Ifyoujpdated
.. .the generator-ID#,
.. complete Part ia on last page of this form.)
Mailing Address 2. Comnanv Name JUDY GRANT 3. Location Address
- 5. XCEL ENERGY - PRAIRIE ISLAND NUCLEAR PLT (If you updated the location Address, complete Part Ib on last page of this form.)
MINNEAPOLIS, MN 6494 i99
- 4. Lcation o County q5. Mailingh:Address Ls__C(' £Mh**nU* Ae. e. :s '
6 JdyGrnt7. 612I 302864 6.'Contact .Person': *. L **-* :: °' (Contact person must sign/n art3on last page of this form.) 9: -Busness Type
Description:
- 7. Telephone Nuimber" (01:) 6z0 - '119 ..
..,NAICS Code: 221113
- 8. Minnesota or Federal Tax ID#: ____________"
SIC CODE: 4911
- 9. Business Type Description Check the box at the right and Generator Size: Generation, SQG complete part Ic on the lastpage of this form if your NAICS and/orSIC code El Part 2 - Waste Stream Information for 2004 is not preprintedin box 9 at the left. See last page for complete instructions.
INSTRUCTIONS: Complete one form for each location. Fill out the shaded area fbr each waste produced during 2004. Put a line through wastes no &ger produced. For wastes not preprinted.below. If you are a Very Small Quantity Generator, add the wastes to the list after the last preprinted W. If you are a Large or Small Quantity Generator, complete a Management Plan Short Form for each new waste. See Application Instructions for details. -Return form by Feb 01, 2005. Inventry e Amount Previously. , .Mgmt Inventor. Code (2- Name of Hazardous Waste Reported I " l :Waste 04.digit)
-- V Reotd Method Wastes previously reported on 2003 report: . _.....
001 D00l SOLVENT, NON HALOGENATED 11 P.- BF*-. 002 MN02 SEWERED LAB WASTE 7! P SG 003 D039 SOLVENT, HALOGENATED P IT 004- MN02- CHEMICAL, FORMALDEHYDE i. P IT 006 MN03 MINERAL OIL, PCB I(P IT 007 D001 PAINT RELATED MATERIAL 1372 P BF 011 D008 USED OIL. GREASE CG RB 012 D007 WOOD PRESERVATIVE ( P IT 013 D006 HAZARDOUS WASTE SOLID, METAL 141 P MM 014 D002 CORROSIVE LIQUID 372( P MM 015 D022 EXPIRED CHEMICALS, HAZARDOUS 11,1 P MM 016 D007 WATER, METAL CONTAMINATED 57A P MM 018 D001 AEROSOLS 4! P BF 019 MN03 ELECTRICAL EQUIPMENT, PCB P LD 0 MN01 CORROSIVE SOLIDS 31 P SZ 1001 OXIDIZER, LIQUID P SZ 025 MN01 BORON TRIFLUORIDE - P IT 026 MN03 PCB Solids IP LD
Part 2 - Waste Stream Information for 2004 Continued -
- Waste Invento Code (2- Name of Hazardous Waste ount Previously Mgmt -1N
.. J-Reported * -Method fZh
t.,ihGneral Information Explanations: Complete-this section only if you have made changes to Part 1. Part la: Changes to line 1, Generator ID# - Pleaseoindlcate why thelgeneaton addrs wascorrected.-,:, 7Q~DI~at he IDjorI~~Ie (edresses.riy. thfe ýisame)12_z VJ--- . Part I b: Changes to line 3, Location Address Please indicate why the location address was corrected: F1 Moved waste generating activities to another location. Complete a "Notificationof Regulated Waste Activity Form" for the new location, if you haven't already done so, and submit the completed form with your completed License Application; a new ID# will be issued for the new location. The "Notificationof Regulated Waste Activity Form" is availableon-line at www.pca:State'-mnus/1iublications/w-hw7-09.pdf. -:- --- -
- Streets andldr*streethu'mbdl-changed by 911 (Emergency) System- . . . _.
--- ] Property icorporated! intoi.imiiits~and street-was renamed. "- '- .
[ Incorrect address; nevera£tsite. address listedon front. - -- ".-,-o.- . -- -
- LNot d_ hangei-ilocati "u" aI eion'of the address on the front.
--.
-: , - - ..-. , -
- Other (explain): "- =* .:-'-,--. ,- .......... .. ...
ýPart 1c: Business Type Description.-Find your NAICS code by going to www.census.govlepcdlwwwlnaics.html.
The passage of the North American Free Trade Agreement (NAFTA) mandated a change in the system that identifies and-classifies businesses and industries. The previous system, known as the Standard Industrial Classification (SIC) System, has been replaced by the North American Industry Classification System (NAICS), which is more comprehensive. Please log on to www.census.gov/epcdiwww/naics.html to look-up your NAICS code and/or convert your SIC code, which is preprinted on the front page of this application, to the appropriate NAICS code. Ifyou do not have access to the internet and your SIC code is not preprinted on the front page of the applicaation, please provide a brief explanation of your business or the services you provide and staff will assign an appropriate NAICS code. Part 3-Read and Sign Certification Below.- " Check a box below if. applicable. Keep a copy of your completed license application for at least 3 years. ...
.--Mail the original, completed application to te- MPCA at the address below.
O My business produces lessthan 10 gallofis of waste per year. Q My business does not generate a hazardous waste at the location address on the front of this form.
- My business no longer operates at the location address on the front. - .
~ r prioh~ien - 7i... "F -, -
Yo-lqus-Adiioa Inomain.. visit ou we sit at wwac~tt~nu/at/usbsns~tl - I] Plaertf spend~iaf mef more informatio l~ron VQGCll~ectione Sites (#2.51)a wwýpaistate~mnfus/publ'coicationslw-hw2-.p adtall I] Plaesn t ea itn3ftefatset vi ablon c esompyng it te f azr d -u Wasiin th e Rules (#0.00) [] P sndtas m litinge o th fac- shet avala ' opyn on ihte aadu at Rue -#.0 (~wpa, statemmnius'6pubiicatfitnshe swbmitOepdi)f a n(www.pca.state.n.us/publications/w-hw2-0pd. [i Pollution Prevention can save your business time and money. Non-regulatory programs can be contacted at the numbers below to learn o more about the Pollution Prevention opportunities available to you. If you would like to be contacted by the Minnesota Technical Assistance Program (6121624-1300) please check the box at the left. Return this application by Feb 01, 2005 to: Minnesota Pollution Control Agency, MAR/Majors
.520 Lafayette Road N., St. Paul, Minnesota 55155-4194
'Hazardous Waste License Application COrc°fieUe 7 CD (to report hazardous waste generated last calendar year, as required by law) WH
. .Minngsota
.-. Pollution!.Control Agencyg;52.0;Lafayette Road.N;,St. Paul;,-MN 55155' .a- *._,
, rid com~lete parts-2-and-3
-.a~drs~>~ )libleACSCde F1. MND049537780 -
- 2. Xcel Energy - Prairie Island Nuclear Pit D Out of Business as of: (date),
. 1717WakonadeDrE -* note: You must report the amount you generated in the last 3.
---. calendar-year-even-if-it's zero---
-- Welch7 MN 55089 -
- 4. Goodhue County -Part 1- General Information CORRECTIONS ONLY Mailing Address 1. Generator ID#.
(If you updated the generator/D#,complete Part la on last page of this form.) JUDY GRANT
- 2. Company Name
- 5. XCEL ENERGY - PRAIRIE ISLAND NUCLEAR PLT 3. Location Address 44411396i MAL PAOLE Ihe4L MINNEAPOLIS, MN 55,4e1-ý .S'0, (If you updated the location Address, complete!Partlb,onlasitpage ofthhisjorm.) "
-4.,Location County . -.
- 6. Judy Grant .-:.. -,7 61230-4519 12/ - 5l;MailingAddress_ \- , f V
- 8. Fed. Tax I): 41196-7505'. MN Tax ID: 8133673i',': 3 6 contact Person
- 9. Business Type
Description:
..... (Contactperson must sign in Part3 on last page of this form.)
NAICS code: 221113, Nuclear Electric Power Generation
- 7. Telephone Number ( ) - -
SIC code: 4911, Electric services
- 8. Tax ID: Review and correct if necessary Generator Size: Generation, SQG
- 9. Business Type Description Check the box at the rightand 11 Pa-rt Waste Stream Information for 2005 1 complete part Ic on, the last page of this form if your NAICS and/or SIC code q STRUCTIONS: You must complete one form for each location. Fill.-isout the notshaded preprintedarea in box for 9each at thewaste left. See last page during generated for complete 2005.instructions.
Put a line j through wastes no longer generated. For wastes not preprinted below: If you are a.Very Small Quantity Generator, add the wastes to the list*-- - after the last preprinted item. If you are a Large or Small Quantity Generator, complete a Management Plan Short Form for each new waste. :'-!. Reminder: If you generated parts washer solvent that was hazardous, you must report it, even if you mix it with used oil or have it hauled - . 6ff-site under contrt.. -.. See Application Instructions for details. Return form by Jan 30, 2006. Waste Amount Previously Mgmt Inventory Code (2- Name of Hazardous Waste ' ReAou ted Met
# or4dgt,'Reported or 4-digit) Method L.........-..... - . Wastes previjouslymreported on 2004 report: _.,_.....
001 D001 SOLVENT, NON HALOGENATED 15r P BF 002 MN02 SEWERED LAB WASTE - 7 P SG 003 D039 SOLVENT, HALOGENATED " P IT 004 MN02 CHEMICAL, FORMALDEHYDE CP IT 006 MN03 MINERAL OIL, PCB. CP IT 007 D001 PAINT RELATEDMATERIAL
- 1011 P BF 011 D008 USED OIL, GREASE CG RB 012 D007 WOOD PRESERVATIVE P IT 013 D006 HAZARDOUS WASTE SOLID, METAL 121E P MM 014 D002 CORROSIVE LIQUID 58 P MM
-08.2 , 2 EXPIRED CHEMICALS, HAZARDOUS 61 P MM D007 WATER, METAL CONTAMINATED 512 P MM 018 -" D001 . AEROSOLS 104 P BF 019 MN03 ELECTRICAL EQUIPMENT, PCB P LD 023 MN01 CORROSIVE SOLIDS 0P Sz
Part 2 - Waste Stream Information for 2005 Continued
- Waste CInventor ode (2. Nameof Hazardous Waste Amount Previously .Mgmt InveritoWasteus a r,-4-d - Reported .- *-Method
*!* .*~~~Wastos i~eVios _re rep ii2 ,**'
- j OXIDiZ R LIQUID
- - - 0 "- . . SZ "
'025 MNO1' :BORON TRIFLUORIDE 0 P li T 026 MNO3 -'-" PCB-S1Ijds---- ------- -- 0 j
-- ._ .- __...... " -. . . . .. .. .... . . . . .... . . . P. . - D. . .
J -ii
.77 ..-.
- L.. .. ._
if Information Explanations: Complete this section only if you have made changes to Part 1. Pai.r.ia: C*hanges to lne 1,.Generator.ID#.--..* ...
-*, - :: .- i: - : I1 12_,[
Moved/Changed locations (Complete 'Partlb- Vbelow.) "-;*': *...'**.-.:. El No ID#on front of form Part Ib: Changes to line 3, Location Address Please indicate why the location address was corrected: fl Moved waste generating activities to another location. You must complete a "Notification of Regulated Waste Activity Form" for" the new location, if you haven't alreadydone so, and submit the completed form with your completed License Application; a new ID# will be issuedfor the new location. The "Notificationof Regulated Waste Activity Form" is available on-line at www.pca.state.mn.us/publications/w-hw7 -09.pdf. streets and/or street numbers changed by 911 (mrgencym)System.. Sr r- Property irncorporated into city limits-and street was ren d Q..lncorrect address; never at site address listed on front,- :- " Q-Not a change in location: just a clarification of the address on the front. ,--- -PatAld:-Business Type Description. -Find Xour NAICS code by g6ing to.w .wcensus.gov/ep cd/www/naics.html. The passage of the North.American Free Trade Agreement (NAFTA) mandated a change in the systemithat identifies and classifies businesses and industries. The previous system, known as the Standard Industrial Classification (SIC) 'System, has been replaced.by the North American Industry Classification System (NAICS), which is more comprehensive. Please log on to www.census.govlepcdlWww/naics.html to look up your NAICS code and/or convert your SIC code, which is preprinted on the front page of this application, to the appropriate NAICS code. If you do not have access to the internet and your SIC code is not preprinted on the front page of the application, please provide a brief explanation of your business or the services you provide and staff will assign an appropriate NAICS code. Part 3 - Read and Sign Certification Below. . Check a-box below if applicable. Keep acopy of your completed license application forý,at least 3 years. Mail the original, completed application to the MPCA at the address below. 12 My business. produces less than 10 gallons of waste per year. E] My'business does not generate a-hazardous waste atthe location address on the front ofthis form. 1 Myý*business no longer operates at the Iocation address on the front, and did notgenerate more than 10 gallons of waste during 2005. se ,Mb~dep penait'pf la-.&v ~ro aeained rn and am fariitir.v4th he.ifraij onare~nlird~la~c~douet
. gg!hri/ jqt :y iih'ai of-ttese:.Individuals immediately responsible for obtaining Ithe~inf, ntiorI: h';t
- :ev:e:...........
A4~c~ 6 r~i at) . ....... .. "
. . :.iq,.t
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ou Can equest Additional Information...visit our web site at www.pca.state.mn.us/Waste/pubs/business.htmI for lots of information n hazardous waste rules and regulations. F Please send me more information on VSQG Collection Sites (#2.51) (www.pca.state.mn.us/publications/w-hw2-51.pdf). [ Please send me a listing of the fact sheets available on complying with the Hazardous Waste Rules (#0.00) (www,pca.state.mn.us/publications/w-hw0_00.pdf). Return this application by Feb 08, 2006 to: Minnesota Pollution Control Agency 520 Lafayette Road N., St. Paul, Minnesota 55155-4194
.Hazardous Waste License Application (to report hazardous waste generated last calendar year, as required by law)
.Minnesota IPollutioni ContiroIA*encv, 520 La~a\:ette Road N, St..Pa ul, MN 55155.
PartA-tlG Fafi.e l nformati o n .C ORRECIONSONILY_. . - Generator ID-#i.' A. Generator 10#
- 1. MND049537780 (Ifyou updated the generatorID#. complete Pail 1a on last page of this form.)
72_Contact'Person ..... -...... . . Mailing Address (Contact person mu#st sign in Part 3 on last page of this form 2, JUDY GRANT 3. Company Name 3 XCEL ENERGY - PRAIRIE ISLAND NUCLEAR PLT 4. Mailing Address ,25-' flcq*L, -- c AX-,.3 S'te 8o MINNEAP0L'.. NAP'59903
- 5. Location Address
.(If prat location Address. complete Part la on last page of this form.)
5 1-71-7 Wakonade Dr E-N
.6. Location,.County,
- .,*. .-welch" 'MN 55089- -: '
- 7. Telephone-Number ((l4a) 39O -d*
- 6. Good County: 8. Tax ID: Review and correct if necessary JudyGrariti. .7. -Gi2,'CO384610 9. Business Type Description Check the box at the right and E]
complete part lb on the last page of this form if your NAICS and/or SIC code
- 8. Fed. Tax ID:411967505 MN Tax ID: 4886397 is not preprintedin box 9 at the left. See last page for complete instructions.
Check box and complete parts 2 and 3 if applicable.
- 9. Business Type
Description:
El Less than 10 gal (100 Ibs) I year NAICS code: 221113, Nuclear Electric Power Generation El Intermittent Generator: Check if you did not generate waste this year but might next year. 1 Generator Size: Generation, SQG E0 Out of Business as of: (date) P* note: You must report the amount you generated in the last calendar year even if it's zero. INSTRUCTIONS: Yoiumdst complete one form for each location. Record the amount for each waste generated during 2006. Put a line through wastes no longer geneiated. For wastes not preprinted below: If you are a Very Small Quantity Generator, add the wastes to the list after the last preprinted item. If you are a Small or Large Quantity Generator, complete a Management Plan Short Form for each new waste. Reminder: If you generated parts washer solvent that was hazardous, you MUST report it, even if you mix it with used oil or have it hauled off-site under contract.i. See Application Instructions for details. Return form by Feb 07, 2007. Please report: P' Pounds, G = Gallons, K = Kilograms Waste *. :::2006 Amount Inventory Code-(2- Name of Hazardous Waste Amount Previously Mgmt Wrtein the amount Mgmt
#Code4-digit} Reported Method andindicatepoundol p`.
s IG. Mthd or4dgit) gallons, or kilograms or 1 e
.... Wastes previously reported on 2005 report: ... ." . .....
001 DO0 SOLVENT, NON HALOGENATED 298 P MM : .p ______ 002 MN02 SEWERED LAB WASTE 75 P SG f: I 5& 003 D039 SOLVENT, HALOGENATED 0 P IT I 004 MN02 CHEMICAL, FORMALDEHYDE 0 P IT P:,, : YT S 006 MN03 MINERAL OIL, PCB CP IT 007 D002 PAINT RELATED MATERIAL 1990 P BF . l; " . 011 D008 USED OIL, GREASE CG RB 012 D007 WOOD PRESERVATIVE 0P IT 0 D006 HAZARDOUS WASTE SOLID, METAL 138E P MM -5.75 P mmffI 114 D002 CORROSIVE LIQUID 37 P MM f.. 015 MN02 EXPIRED CHEMICALS, HAZARDOUS 389 P MM 016 D007 WATER, METAL CONTAMINATED 226 P MM.i* . . _"__ 018 D001 AEROSOLS 43 P BF . .t 7 . __ . .
ý,aeStream Information for 2006 Continued a erC Please report: P = Pounds, G = Gallons, K = Kilograms J Waste **2006 Amount_
0 'Ury Code ( 2 - f H - as. ., Amount:Previously Mgmt Write inthe arnount. p-Mmt
- 1
__I__ ______ I~~Me~ -ý-- Haadu WasteIflL~G _ _&& ;-itef inict - pouI z~nds -__
-Mgmth W0QI c pbr,:_ K _
MN03 IELECTRICAI-EQOUIPME NT. PCB 0 P ,LD I _.____..._____________"_____ I 1________-_____"_ I-__,',_. -*23 MN01 ICORROSIVE SOLIDS 0 IP ISZ 0
+ _____ +
r024 D001 OXIDIZER, LIQUID,, : 0 jP SZ
.025 MN01 BORON TRIFLUORIDE "0 .. P I IT "_o 026 MN03 PCB Solids 0 jP ILD 0 4- r-s~' ~ --
r-~- ~ ~
----
- ------
'1 V
O'hp
. Hazardo.. Waste License AvPlication A (to report hazardous waste generated last calendar year, as required by law) Wit IPM FP NAICS Codle Part I- General Information CORRECTIONS ONLY rax It ID Generator ID# 1. Generator ID#
- 1. MND049537780 (If you updated the generatorIDt. complete Part la on last page of this form.)
- 2. Contact Person Ju(dx ( 7ren+
Mailing Address (Contactperson must sign in Part 3 on last page of this form.)
- 2. E-mail Address c*lv a, *"r. 4 L9 Xrelenetrp/, COM
- 3. XCEL ENERGY - PRAIRIE ISLAND NUCLEAR PLT 3. Company Name
- 4. 2.5 MA*CCUETTE PLAZA MlJ Q,520 fflmaT9poude Ave.,) 61+c 3oo
- 4. Mailing Address MINNEAPOLIS, MN 55401 Location Address 5. Location Address 5 1717 Wakonade Dr E (If you updated the locationAddress, complete Pail la oh last page of this form.)
Welch, MN 55089 6. Location County
- 6. Goodhue County 7. Telephone Number ( )
Judy Grant 7. 612/330-7827
- 8. Tax ID: Review and correct if necessary
- 9. Business Type Description Check the box at the right and E
- 8. Fed. Tax ID: 411967505 MN Tax ID: 4886397 complete part lb on the last page of this form if your NAICS and/or SIC code 0 RI *czinooe~ T',nn lc
[*,-rntionn is not preprintedin box 9 at the left. See last page for complete instructions. NAICS co*de: 22111 3, Nuclear Electric Power Check box and complete parts 2 and 3 it applicable. Generation. [ Less than 10 gal (100 Ibs) / year h Lii Intermittent Generator: Check ifyou did not generate 11 Generator Size: Generation. SQG waste this year but might next year. FII Out of Business as of: (date) Part 2 - Waste Stream Information for 2007
- Note: You must report the amount you generated in the last
..................
1 ~calendar year even if it's zero.
................................
INSTRUCTIONS: You must complete one form for each location. Record the amount for each waste generated during 2007. Put a line through wastes no longer generated. For wastes not preprinted below: If you are a Very Small Quantity Generator, add the wastes to the list after the last preprinted item. If you are a Small or Large Quantity Generator, complete a Management Plan Short Form for each new waste. Reminder: If you generated parts washer solvent that was hazardous. you MUST report it, even if you mix it with used oil or have it hauled off-site under contract. See Application Instructions for details. Return form by January 27, 2008. Please report: P = Pounds, G = Gallons, K = Kilograms Inventory Waste(2- NAmount Code Previously Mgmt amountAmount Write in the2007 p, Mgmt
# or 4-digit) Reported Method and indicate pounds G, Method o -ii)gallons, or kilograms Gor eho Wastes previously reported on 2006 report: at ___igt_
001 [oo. SOLVENT. NON HALOGENATED 51 P 1 "F F 002 MN02 SEWERED LAB WASTE 71 P [S 75 P S&. 003 D039 SOLVENT. HALOGENATED CP IT o 006 MN03 MINERAL OIL. PC8 ' P IT 007 D002 PAINT RELATED MATERIAL 171E P BF 23176 , BF 011 D008 USED OIL. GREASE 0G RB 0 012 D007 WOOD'PRESERVATIVE CP IT 0 3 D006 HAZARDOUS WASTE SOLID. METAL 1575 P MM I pT014 D002 CORROSVE LIQUID . 537 P MM rI 1o JP mimi 015 MN02 EXPIREDCHEMICALS. HAZARDOUS 23 P MM 0L-2_7 P mm_ 016 D007 WATER. METAL CONTAMINATED 901 P MM 400 _
- I
Part 2 - Waste Stream Information )2007 Continued h Please report: P = P.nds, G = Gallons, K = Kilograms Waste 2007 Amount Inventory Code (2- Name of Hazardous Waste Amount Previously Mgmt Write in the amount P, Mgmt. [ Or 4-digit) Reported Method andindicate pounds, G, gallons, or kilograms Method at the right. or Wastes previously reported on 2006 K report: 018 0001 [AEROSOLS 37 P BF R P BF 019 MN03 jELECTRICAL EQUIPMENT, PCB 446 P LD ?OI 4 D,__ 023 MN01 CORROSIVE SOLIDS 0 P SZ o 024 D001 OXIDIZER, LIQUID 0 P SZ 025 MN01 BORON TRIFLUORIDE 0 P IT 026 MN03 PCB Solids 0 P LD
,f subomiw-j4 aocg MINNESOTA EMERGENCY RESPONSE COMMISSION 444 CEDAR ST., SUITE 223, ST. PAUL, MN 55101 PHONE: (651) 297-7372 TTY (651) 282-6555 FAX (651) 296-0459 HAZARDOUS CHEMICAL REPORT MINNESOTA COMMUNITY RIGHT-TO-KNOW 40 CFR PART 370 SUBPART B A IFacility Identification (SECTION 311 REPORTING REQUIREMENT) ERCID# 12 15 I-- 1 510 -- 10 10110 1 SI Code14 I I911I Facility Name: Prairie Island Nuclear Generating Plant Street Address: 1717 Wakonade Dr Mailing Address: 414 Ncollet Mail. (MP-8) (If different from Street Address) City, State, Zip Code: Redwing, MN P.O. Box #: County: Goodhue City, State, Zip Code: Minneapolis, MN 55401 Primary Contact: Joan Neubauer Alternate Contact: Jeanne Tobias Telephone: 16 1 5 -- 3 88 8 -- 1 1 2 1 Telephone: 1 6 1 5 11 3 18 1 8 -- 1 12 B IAccompanying Information 40 CFRpart370.21 requiresfacilitiesto provide either nuterialsafety data sheets (MSDS's) or a list of chenicalnuaterialspresent at this facility in excess of the current "miniumr thresholdquantity" ifyou are requiredto prepareor maintainsuch MSDS's by OSIL4.
- 1. Is this an initial submittal or an update? (Check one) 2. Are you submitting MSDS's or a list? (Check one)
CI) Initial dZ0 Update IDF MSDS 0 List
- 3. Are any of these materials on the list of "Extremely Hazardous Substances" and present in excess of the "Threshold Planning Quantity" as defined in 40 CFR Part 355, published in the Federal Register April 22, 1987? (Check one) (fl Yes d0 No
- 4. Has a copy of the submittal been sent by you to your local fire[ 5. What is the name and address of your local Fire Department?
department? (Check one) QI Yes (14 No
- Redwing Fire Dept. 420 Plum Street, Redwing, MN 55066 C IRecommended List Format Computerprintouts or typed lists are also a~cceptable.
HAZARD CATEGORY COLUMN I COLUMN II (Check all that apply) Cu C.) Chemical or Common Name Hazardous Components as provided on Cu the MSDS
~.) C.)
C.) C.) 0 C.) U, I U) C.) C.) '.4 C.) C.) Cu C.) rj~ sVslisi Molluscide CL-2005 GAS #64175 PS - 04000-03 (3/O0) Continue list on back or additionalforms Page I of I
Page 1 of 9 Tier II Emergency and Hazardous Chemical Inventory Reporting Period From January 1, 2007 to December 31, 2007 E3 Annual Q Revision Facility Identification Owner/Operator Details ID 3637 Name Xcel Energy Name XCEL ENERGY - PRAIRIE ISLAND PLANT Phone 612-337-2243 Street 1717 WAKONADE DRIVE City Red Wing StreetAddress 414 Nicollet Ave County Goodhue City : Minneapolis Fire Department RED WING State MN State MN Zip 55089 Zip 55402 Phone 612-337-2243 Lat/Long 44.622996/-92.641775 Country United States Fax : Email : jayshree.b.desai@xcelenergy. com Mailing Address if different from Facility ID Address Emergency Contacts Company XCEL ENERGY - PRAIRIE ISLAND PLANT Name Joan Neubauer Attn JAYSHREE DESAI Title Env Contact -NMC PI Street Address 1 414 NICOLLET MALL (MP-8) Phone 651-388-1121x4626 24 Hr.Phone 651-388-5577 Street Address 2 City MINNEAPOLIS State MN Name Jeanne Tobias Zip 55401 Phone Title Env Contact Country United States Phone 651-388-1121x4626 24 Hr.Phone : 651-388-5577 SIC Code 4911 Dun & Brad No NAICS TRIFID EIN ID(Tax Number) Client System Id : 251500001 Mixture Components are listed in the Appendix. Certification: I certify under penalty of law that I have personally examined and am familiar with the information submitted, and that based on my inquiry of those Optional Attachments individuals responsible for obtaining the information, I believe that the submitted information is true, accurate, and complete. 0 Site Plan 23 Site Coordinate Abbreviations Xcel Energy,___ Env. __'_ Analyst _-___ __ __,,_,_.,,_,,___ 1/31/2008 3:19:03 PM
.. Li Other Safeguard measures
__ __Emergency Response Plan Name and official title of owner/operator or authorized representative Date Signare 0
0 0 Page 2 of 9 Chemical Description Physical & Health Inventory Storage Codes & Location Hazards Chemical ID . 26562 Fire 32000 Max Daily Amt(lbs) Container Type Pressure TemperatureVStorage Location Check if Chemical Information has :l [3 Pressure 04 Max Daily Amount 4 changed from the last submission [3 Reactivity Code CAS . N/A 9 Immediate 20000 Ave. Daily Amount Trade Secret [3 Delayed (bs.) Chemical Name BLACK BEAUTY (Chronic) 04 Ave. Daily Amount PRODUCTS Code EHS El Contains EHS :3 365 No of days in site EHS Name [3 Pure 9a Mix 9 Solid [3 Liquid [3 Gas Container Tvoe Pressure ITemperature lStoraae Location Chemical ID Check if Chemical Information has
- 2615
[3 El Fire 296340 Max Daily Amt(lbs) C 1 4 AUXILLARY Pressure 05 Max Daily Amount BLDG - changed from the last submission Reactivity Code CAS : 10043353 [a Immediate 289340 Ave. Daily Amount CONTAINMENT Trade Secret 0[ [a Delayed (lbs.) BLDG - Chemical Name BORICACID REFUELING (Chronic) 05 Ave. Daily Amount POOL - EHS : Contains EHS :[] Code LAUNDRY AREA-EHS Name 365 No of days in site
#8 WAREHOUSE 9 Pure [9 Mix 9 Solid 9[ Liquid [3 Gas 14 AUXILLARY BLDG -
CONTAINMENT BLDG - REFUELING POOL - LAUNDRY AREA-
#8 WAREHOUSE C 14 AUXILLARY BLDG -
CONTAINMENT BLDG - REFUELING POOL - LAUNDRY AREA-
#8 WAREHOUSE C 1 4 AUXILLARY BLDG -
CONTAINMENT BLDG - REFUELING POOL - LAUNDRY AREA-
#8 WAREHOUSE
Page 3 of 9 Chemical Description Physical & Health Inventory Storage Codes & Location Hazards Chemical ID 23728 [3 Fire 15000 Max Daily Amt(Ibs) Container Type Pressure Temperature Storage Location Check if Chemical Information has :G Pressure 04 Max Daily Amount L 2 4 TURBINE BLDG; changed from the last submission 2 Reactivity Code GAS HOUSE-E CAS 124389 Immediate 15000 Ave. Daily Amount SIDE OF PLANT Trade Secret 2[] [3 Delayed (lbs.) C 2 7 TURBINE BLDG; Chemical Name CARBON DIOXIDE (Chronic) 04 Ave. Daily Amount GAS HOUSE-E EHS :3 Contains EHS : Code SIDE OF PLANT EHS Name 365 No of days in site 23 Pure [] Mix [] Solid [2 Liquid [2 Gas Chemical ID 26793 Fire 65000 Max DailyAmt(lbs) Container Typej Pressure Temperature Storage Location Check if Chemical Information has Pressure 04 Max Daily Amount R 1 4 PLANT WELLS changed from the last submission [3 Reactivity Code CAS 7440440 2 Immediate 30000 Ave. Daily Amount Trade Secret E: [3 Delayed (lbs.) Chemical Name COKE METALLERGICAL (Chronic) 04 Ave. Daily Amount EHS :3 Contains EHS : El Code EHS Name : 014 No of days in site [E Pure [2 Mix 2 Solid [] Liquid [3 Gas 0
Page 4 of 9 Chemical Description Physical & Health Inventory Storage Codes & Location Hazards Hazards Chemical ID : 2614 Container Tvoel Pressure Temoerature Storaae Location I Check if Chemical Information has .0 (a 13 Fire 2572065 Max Daily Amt(lbs) B 1 4 TANK FARM changed from the last submission 2] 13 Pressure 06 Max Daily Amount CAS : 68476346 0] Reactivity Code NEAR #5 WAREHOUSE; r13 Immediate 2225100 Ave. Daily Amount Trade Secret INSIDE DIESEL Delayed (lbs.) Chemical Name : DIESEL FUEL#2 (Chronic) 06 Ave. Daily Amount GENERATOR EHS :0 Contains EHS : 03 Code BLDGS; INSIDE EHS Name 365 No of days in site SCREENHOUSE; 0] Pure [a Mix [0 Solid a Liquid [0 Gas ETC. C 4 TANK FARM NEAR #5 WAREHOUSE; INSIDE DIESEL GENERATOR BLDGS; INSIDE SCREENHOUSE; ETC. A 1 4 TANK FARM NEAR #5 WAREHOUSE; INSIDE DIESEL GENERATOR BLDGS; INSIDE SCREENHOUSE; ETC. C I 4 TANK FARM NEAR #5 WAREHOUSE; INSIDE DIESEL GENERATOR BLDGS; INSIDE SCREENHOUSE; ETC. Chemical ID 25208 Fire 43000 Max Daily Amt(lbs) Container Type Pressure Temperature Storage Location Check if Chemical Information has 23 Pressure 04 Max Daily Amount C 1 4 WAREHOUSE #2; changed from the last submission CAS Trade Secret 0 69011207 [0 2a 2a Reactivity Immediate Delayed 43000 Code Ave. Daily Amount (lbs.) 7_ E 1 4 VARIOUS AREAS IN PLANT WAREHOUSE#2; Chemical Name EPICOR ANION/CATION (Chronic) 04 Ave. Daily Amount VARIOUS AREAS RESIN Code IN PLANT EHS
- 0 Contains EHS : 0 365 No of days in site EHS Name
[3 Pure 2 Mix 2 Solid 0] Liquid [0 Gas
Page 5 of 9 Chemical Description Physical & Health Inventory Storage Codes & Location Hazards Chemical ID 21246 [Q Fire 57434 Max Daily Amt(lbs) ContainerType Pressure Temperat~re Storage Location Check if Chemical Information has [ 3 Pressure 04 Max Daily Amount D 1 4 WAREHOUSE #3 changed from the last submission 0 Reactivity Code - D5 & D6 CAS 107211 2 Immediate 56000 Ave. Daily Amount BUILDING - Trade Secret [ 2 Delayed (lbs.) COMPUTER Chemical Name ETHYLENE GLYCOL (Chronic) 04 Ave. Daily Amount ROOM CHILLER EHS : Contains EHS :0 Code C 1 4 WAREHOUSE#3 EHS Name 365 No of days in site -D5&D6 03 Pure [a Mix [0 Solid [2 Liquid [3 Gas BUILDING-COMPUTER ROOM CHILLER Chemical ID 2617 Fire 2300 Max Daily Amt(Ibs) Container Type Pressure Temperature Storage Location Check if Chemical Information has Pressure 03 Max Daily Amount Code E 1 4 WAREHOUSE #2; changed from the last submission 2 Reactivity 863 Ave. Daily Amount (lbs.) OUTSIDE COLD CAS 302012 2 Immediate 02 Ave. Daily Amount Code CHEMICAL Trade Secret 0 2 Delayed 365 No of days in site LABORATORY Chemical Name HYDRAZINE 35% (Chronic) E 1 4 WAREHOUSE #2; EHS :2 Contains EHS 03 OUTSIDE COLD EHS Name : HYDRAZINE CHEMICAL [0 Pure [2 Mix [0 Solid 23 Liquid [0 Gas .LABORATORY Chemical ID 17419 [0 Fire 46200 Max DailyAmt(lbs) Container Type Pressure Temperature Storage Location Check ifChemical Information has 0 [0 Pressure 04 Max Daily Amount R 1 4 LEAD-ACID changed from the last submission 0 Reactivity Code BATTERIES IN CAS : 7439921 2 Immediate 46200 Ave. Daily Amount PLANTAND Trade Secret 0 Delayed (_bs.) SUBSTATION Chemical Name LEAD AND LEAD (Chronic) 04 Ave. Daily Amount COMPOUNDS Code EHS : Q Contains EHS : E 365 No of days in site EHS Name [2 Pure 23 Mix [2 Solid [0 Liquid 0] Gas Chemical ID 33325 2 Fire 28000 Max Daily Amt(lbs) Container Type Pressure Temperature Storage Location Check if Chemical Information has 0 [ Pressure 04 Max Daily.Amount 0 1 4 PLANT YARD changed from the last submission 0 Reactivity Code AREA. CAS 64175 2 Immediate 0 Ave. Daily Amount Trade Secret 0[ Delayed (lbs.) Chemical Name MOLLUSCIDE CL-2005 (Chronic) 01 Ave. Daily Amount EHS :0 Contains EHS : Code EHS Name : 30 No of days in site 0] Pure 2a Mix [0 Solid 2 Liquid [0 Gas 0
Page 6 of 9 Chemical Description Physical & Health Inventory Storage Codes & Location I Hazards I Chemical ID 18171 Fire 15530 Max Daily Amt(lbs) Container Type Pressure Temperature Storage Location Check if Chemical Information has
- D Pressure 04 Max Daily Amount C 1 4 CHLORINE HOUSE changed from the last submission GAS 7647156 02 13 Reactivity Code Trade Secret
- 0 13 Immediate 0 Ave. Daily Amount Delayed (lbs.)
Chemical Name NALCO 1318 LIQUID (Chronic) 01 Ave. Daily Amount EHS E3 Contains EHS : 13 Code EHS Name 365 No of days in site [ Pure [a Mix [3 Solid [;3 Liquid [3 Gas
+22831 Chemical ID 12828 El Fire 22831 Max Daily Amt(lbs)
Check if Chemical Information has changed from the last submission CAS Trade Secret Chemical Name 7727379 NITROGEN, 0 13 10 Pressure Reactivity Immediate Delayed 04 Max Daily Amount Code 22831 Ave. Daily Amount (Ibs.) (Chronic) 04 Ave. Daily Amount REFRIGERATED LIQUID Code EHS :3 Contains EHS 13 365 No of days in site EHS Name @ Pure [3 Mix [ Solid El Liquid [a Gas
Page 7 of 9 Chemical Description Physical & Health Inventory Storage Codes & Location Hazards Chemical ID 17994 Ea Fire 474975 Max Daily Amt(lbs) Container Type Pressure Temperature Storage Location Check if Chemical Information has f[ [3 Pressure 05 Max Daily Amount A 1 4 OIL STORAGE changed from the last submission 5 Reactivity Code ROOMS; CAS 7439921 0 Immediate 385350 Ave. Daily Amount TURBINE BLDG; Trade Secret : 3 Delayed (lbs.) DIESEL Chemical Name OIL, LUBE (Chronic) 05 Ave. Daily Amount GENERATOR EHS : Contains EHS " Code BLDGS; EHS Name 365 No of days in site SCREENHOUSE [3 Pure 23 Mix [3 Solid [2 Liquid [ Gas C 1 4 OIL STORAGE ROOMS; TURBINE BLDG; DIESEL GENERATOR BLDGS; SCREENHOUSE D 4 OIL STORAGE ROOMS; TURBINE BLDG; DIESEL GENERATOR BLDGS; SCREENHOUSE R 1 4 OIL STORAGE ROOMS; TURBINE BLDG; DIESEL GENERATOR BLDGS; SCREENHOUSE Chemical ID 20104 2 Fire 12600 Max Daily Amt(Ibs) Container Type Pressure Temperature Storage Location Check if Chemical Information has " 2 Pressure 04 Max Daily Amount A 1 4 WEST SIDE OF changed from the last submission 5 Reactivity Code PLANT CAS 74986 2 Immediate 11130 Ave, Daily Amount A 1 4 WEST SIDE OF Trade Secret 0 5 Delayed (lbs.) PLANT Chemical Name PROPANE (LIQUIFIED (Chronic) 04 Ave. Daily Amount A 1 4 WEST SIDE OF PETROLEUM GAS) Code PLANT EHS : Contains EHS 5 365 No of days in site A 1 4 WEST SIDE OF EHS Name :__PLANT 5] Pure 23 Mix (3 Solid 2 Liquid 23 Gas S
0 Page 8 of 9 Chemical Description Physical & Health Inventory Storage Codes & Location Hazards Chemical ID 2616 Fire 45822 Max Daily Amt(lbs) Container Type Pressure Temperature Storage Location Check if Chemical Information has :3 [3 Pressure 04 Max Daily Amount C 1 4 INSIDE changed from the last submission [3 Reactivity Code AUXILLARY CAS . 1310732 2 Immediate 44000 Ave. Daily Amount BLDG; INSIDE Trade Secret : El 2 Delayed (lbs.) UNIT 1 AND 2 Chemical Name SODIUM HYDROXIDE (Chronic) 04 Ave. Daily Amount STANDPIPES 50% Code C 1 4 INSIDE EHS El Contains EHS : 365 No of days in site AUXILLARY EHS Name BLDG; INSIDE [Pure (a Mix [3 Solid [Liquid []Gas UNIT1AND2 STANDPIPES C 1 4 INSIDE AUXILLARY BLDG; INSIDE UNIT 1 AND 2 STANDPIPES D 1 4 INSIDE AUXILLARY BLDG; INSIDE UNIT 1 AND 2 STANDPIPES Chemical ID 18234 Fire 25460 Max Daily Amt(lbs) Container Type Pressure Temperature Storage Location Check if Chemical Information has Pressure 04 Max Daily Amount C 1 4 'CHLORINE changed from the last submission [7 Reactivity Code BUILDING CAS 7681529 [a Immediate 12000 Ave. Daily Amount C 1 4 CHLORINE Trade Secret 0El [3 Delayed (Ibs.) BUILDING Chemical Name SODIUM HYPOCHLORITE (Chronic) 04 Ave. Daily Amount SOLUTION Code EHS :3 Contains EHS : 365 No of days in site EHS Name [3 Pure 2a Mix El Solid [2 Liquid [] Gas
Page 9 of 9 Chemical Description Physical & Health Inventory Storage Codes & Location Hazards -o a ry P s r e e t So g c i Chemical ID 2613 [3 Fire 4360 Max DailyAmt(lbs) Container Type Check if Chemical Information has : l[] Pressure 03 Max Daily Amount Code C 1 4 E SIDE OF changed from the last submission [3 Reactivity 4360 Ave. Daily Amount (lbs.) PLANT; CAS 7664939 IImmediate 03 Ave. Daily Amount Code CHEMICAL Trade Secret : 2 Delayed 365 No of days in site STOREROOM; Chemical Name SULFURICACID (Chronic) CHEMICAL LABS; EHS 2 Contains EHS :3 LEAD ACID EHS Name SULFURIC ACID BATTERIES [a Pure E3 Mix [3 Solid 2 Liquid [3 Gas M 1 4 ESIDEOF PLANT; CHEMICAL STOREROOM; CHEMICAL LABS; LEAD ACID BATTERIES R 1 4 E SIDE OF PLANT; CHEMICAL STOREROOM; CHEMICAL LABS; LEAD ACID BATTERIES 0 s
10/21/2007 EPCRA SECTION 312 (TIER 11) EP eporting Year: 2007 HAZARDOUS SUBSTANCE INVENTORY WORKSHEET S Plant: PrairieIsland GeneratingPlant *, ' v tJ*4 . ContactPerson: Jeanne Tobias Work Phone: (651) 388-1121 Alternate Contact:I ERC ID#.- 25-150-0.001 24 hr #: (651) 388-5577 Maximum Xcel Site Container Amount Average Amount Reportable Substance Record # Tank # Storage Location Storage Method Capacity Year On-Site On-Site for 2007? Acetone 561 Warehouse #3,.. Drums 55 2007 *<LI*A!3 . Gallons 2006 165 110
* =F=* * *'! " 695 Truck Aisle, No EHS Drums 55 2007 . :
Gallons 2006 55 55 Alcohol Milsolve 562 Warehouse #3 Barrels 55 2007 2`ý Gallons 2006 55 55 Alcohol Milsolve 3671 695 Truck Aisle Drums 55 2007 (%$ ;4.~/
- Gallons 2006 110 55 Alumina Dessicant 2522 Warehouse #1. For air dryer Drums 55 2007 w*!7 h.A lf., i Gallons 2006 110 110 Ammonium Hydroxide (28%) 1717 Outside Cold Lab. Not an EHS. Liquid is7.5 Qa~-5 2007 lb/gal. Approx. 28% -30% NH3. Liters 2006 10 5 Batteries -Lead &Lead 2065 Various areas (warehouse #'and #8, Turbine and Battery 2007 ,
Compounds inLead-Acid * ,,,,Lbs Service Bldg., battery room etc.) Approx. 10.6 lb 2006 46,200 46,200CO*- L _________ of Pb/lb of acid. 10.6 x4360 lb of acid =46.200 Iteries, Sulfuric Acid in Lead 1744 Various areas (warehouse #$ and #B,Turbine and Battery 2007 -, ., , r;*'-
- d Batteries Service Bldg., battery room etc.) Total approx. 4360 4360 4360 lb of sulfuric acid. Lbs 2006 364,.
Beauty Slag Products 2279 ouse # used for ' . Bags 50 2007 ......... h' O~~o~SP-,Lt~Lbs 2006 32'2000 20,C000 Boric Acid (0 - 2%) 553 Reactor coolant system Flow Through Process 14000 2007 - i ij Tank Lbs 2006 14,000 7,000 -- _ _ _ ricAcid (0u-2%) Solid 550 Above Laundry area - 755 level, DeGea. Bags so 2007 4 .'-& , * .. Warehouse*', *3 Lbs 2006 3,000 3, 000 Boric Acid (12%) 554 735' auxiliary bldg (121 boric acid batching tank) Flow Through Process 800 2007 ( i > Tank Gaelons 2006 800 800 Boric Acid (12%) 940 735' auxiliary building (11 boric acid storage tank) Flow Through Process 5000 2007 ,.* ,' , Tank Gallons 2006 5000 5000 Boric Acid (12%) 941 735' auxiliary building (121 boric acid storage Flow Through Process 5000 2007 . ; tank) density =12.3 lb/gal Tank Gallons 2006 5000 5000 a 0
Boric Acid (12%). 942 735' auxiliary building (21 boric acid storage tank) Flow Through Process 5000 2007 - Tank Gallons 2006 5000 5000 Boric Acid (6%) 552 Spent fuel pool and refueling storage tank Other 50000 2007 Lbs 2006 50000 50000 Brine, R. 0. 1965 Indoor, West of water treatment (flow trough AST 10000 2007 -i - - process tank). No EHS. Assumed water density Gallons 2006 1 ,000 10,000 A;, . 8.4 Ib/loal. Brine concentration In R. 0. water 26% _ Gallons 2006 10,000 10,00 C bon Dioxide, Gas 1.053 CA-1 k.-.4*,-,. Cylinders 60 2007 ' "(.. Lbs 2006 3000 30000 Carbon Dioxide, Liquid 1052 Turbine bldg Tank 12000 2007 ', i"' ,., !,.,-. Lbs 2006 12,000 12,000 Coke, Metallurgical 2369 Bone Yard. Used inturbine bldg aumps to absorb Drums 2007 oil. (Note: inventory should include Installed coke *; #-.*
+ amt on-site In drums + amt on-site awaiting Lbs 2006 65,000 30,000 Diesel Fuel 2015 Tank farm, north of plant near #5 warehouse. AST 550 2007 - I Gallons 2006 500 250..
Diesel Fuel #2 194 194 lsida.gu,.Ia$..h (day tank for security diesel) AST 500 2007 f'ý tj \c3/4'- G 5 ý1 Gallons 2006 500 600 Diesel Fuel #2 195 195 Plant screenhouse (#12 diesel cooling water AST 580 2007 1" < pump day tank) Gallons 2006 75 575 , D'I Fuel #2 196 196 Plant screenhouse (# 22 diesel cooling water AST 580 2007 1 pump day tank) Gallons 2006 575 575 Diesel Fuel #2 197 197 b*2diesene Bldg. fue9 Al, 500 2007
- i ..- -.
*H'~ui'rB c.Ytan
\r' &O-( A Gallons 2006 .500 500 !t:* !,;i.
Gallons 2006 500 500 Diesel Fuel #2 198 198 Pln scenos 2iepmdiesel geeaoriul oiltnk AST 500 2007 *y Fi~f* ~
- ti:-..***!*;*
, ,j;t.iL Diesel Fuel #2 199 199 a s diesel oilrdayetanak AST 280 2007 ,,. * '
Gallons 2006 200 200 t*if DIesel Fuel #2 200 200 03 Diesel Generator Day Tank AST 125 2007
- iitI !,-** ;**t .l, <(:*;:
Gallons 2006 125 100 Diesel Fuel #2 219 21 0 4D5 Gieeato pTank)diesel AST 1250 2007 " 'K ,, *;F; Gallons 2006 1250 100C Diesel Fuel #2
#2 211 210 211 210 D4/DieFuel eTank D3/Di FuelGeilrStorDage GOil torae Tank-,'u outsde er B.'ItAST AST 16200 1275 2007 ~ J ~.. .% , .~ ~
Bldg Gallons 2006 15200 1000 , , Gallons 2006 32778 3200 Diesel Fuel #2 212 212 D5/D6 22 Fuel Oil Storage Tank outside near'S , AST 32778 2007 , Vault Gallons 2006 32778 32700 Diesel Fuel #2 213 213 D5/D6 23 Fuel Oil Storage Tank-~de*e Ao~d AST 32778 2007 - * .......... ; Vault Gallons 2006 32778 32700
Diesel Fuel #2 214 214 D5/D6 24 Fuel Oil Storage TanHli-siei AST 32778 2007 , . Vault Gallons 2006 32778 32700 Diesel Fuel #2 218 218 SBO Bldg. 21Day Tank for 05 Diesel Generator AST 665 2007 .~~,, Gallons 2006 665 640 Diesel FuelI#2 219 219 SBO Bldg. 22 Day Tank for D6 Diesel Generator AST 665 2007 " Gallons 2006 665 6l40C' Diesel Fuel #2 459 121 Plant Screenhouse (diesel fire pump ol storage UST 4000 2007 tank) ,- A 6 Gallons 2006 4000 3000j ;, Diesel Fuel #2 460 diesel generator ol UST 19500 2007 . ;. " 4 Diesel Fuel #2 storage H~4 tank) -- I)-
~Gallons JJZ~ t iA*.*. Gallons 2006 19500 19500 *""*" ...
'461 1223
________________________________ s~ut' of zora'i""'ogtan(123 diesel generator oil UST 19500 2006 2007 195,00190
,.,
Diesel Fuel #2 462 122 " " " (122 diesel generator oil UST 19500 2007 ",* ,- strg t ankGallons 2006 19500 19500 0 .*, Diesel Fuel #2 463 122 Set4*oftrbnbilding (122 diesel generator oil UST 19500 2007 * ,, .. , : storage tank) Gallons 2006 1500 1500 Diesel Fuel #2 464 121 S of turbine bldg. (121heatingboiler oil UST 35000 2007 ': - storage tank) Gallons 2006 35000 25000 De6 122 #2of buldng. (122 P41nturbine healing boiler oil UST 35000 2007-, Diesel Fuel #2 465 121 o b (o storage tank) Gallons 2006 95000 31500 y. .*, . Diesel Fuel #2 466 122 East of Plant Screenhouse (22 diesel cooling UST 19500 2007 , '"' ,.. water pump oil storage tank) Gallons 2006 19500 19500 Diesel Fuel #2 467 121 .East of Plant Screenhouse (12 diesel cooling UST 19500 2007 water pump oil storage lank) Gallons 2006 19'ý500190 Ethylene Glycol (100*/*) 592 Warehouse #3. Not an EHS. 9.4 lb/gal Drums 55 2007 ['I ' ,-,,,".?."/0" Gallons 2006 850 550 Ethylene Glycol (50%) 59 5& 6W RTN w J k- ar~, Gk" Other 5000 2007 ., Gallons 2006 4800 4600 Ethylene Glycol (50%) 594 34eag.s and computer room chiller Other -I 7J - 2007
~Gallons pr*..,;,
- £,, m 2006 3980-. 1400 Formaldehydevarious grades 1740 Formaldehyde various grades at PI environmental Pails 5 2007 (5%, 10% & 37%) Laboratory Gallons 2006 11 10
--- -Lbs 2006 200 200 Freon 113 3672 Warehouse #3, No EHS, Pails - L5 2007 L49 , """" ,,<?-':., .s,-.
- Gallons 2006 30 30 ;
Freon 22 1050 Warehouse #3 (no EHSs) (9.9 lb/gal) Cylinders 20 2007 . 1 Lbs 2006 100 100 0
Gasoline 2014 2014 Tank farm north of plant, near #5 Warehouse. AST 550 2007 - J
- , Jdly -, * 'Gallons 2006 500 250 Halon 1301 1046 Various fire suppression areas; various sizes Cylinders 2007 , . , ,*
Lbs 2006 3731 37311 Hydrazine (~ 5NO\ 3676 Chem Feed Ul and U2 Process piping 1175dý Piping 175 Gallons 2007 2006 350
35Ql0 gallons each, EHS yes, 8.5 lb/gal Hydrazine (35%) 557 3 OtsdWrWar ehue , nt rm 30207 ,... ________________________________ p,-~~)-c.~ ~L ~Gallons 2006 300 21100 Hydrazine (35%) 558 3 Outside cold lab. EHS. Liquid 8.5 lb/gal, Unit I Drums 30 2007 '14%~ ,. Tubn lg 9'Gallons 2006 120 60 Hydrazlne 35% =Bftw* 3675 Beeon Warehouse, El-S, 8.5 lb/gal Drums 30 2007 Gallons 2006 6600 3300 jitydretidc.8cl3d Chem Storage Room, cold lab 695'; hot lab Glas --- -- --- -- z.:. 2 . Gallons 2006 4 2 Hydrogen Gas 1054 Hydrogen gas house (1 lb / 194 ftM) Cylinders 261 2007 - Cubic Feet 2006 13050 13050 Isothlazolln, GE Betz Spectrus 1962 Chem Storage Room, no EHS, 11.62 lb/gal. Pails 5 2007 * -. :"I 1106 Gallons 2006 5 5 Kerosene 781 Warehouse 43, 6.9 lb/gal. Not an EHS. Pails . 200 Gallons 2006 50 40 Kerosene 1718 Warehouse #3,6.9 lb/gal. Not an EHS. Drums 55 2007
- 224 Gallons - 2006 220 110 Mollusclde CL-2005, Chemtreat, 3685 This product was td the site for 3 days In 4 drums Drums 65 2007 r -
ZM MolluscIde and 4 totes, 0\* Gallons 2006 220 0 Molluscide CL-2005, Chemtreat, 3702 This product was at the site for 3 days In4 drums Tote Tank 400 2007 I .< :. -' ZM Molluscide and 4 totes. Gallons 2006 '600 - 0 _.* Galn 06 1600 0 Molybdate Corrosion inhibitorGE 2914 nit 2 Turbine Bldg. 715", Deeen Warehouse .3 Drums 55 2007 C- /. - 1 Belz MD 4106 ., \i ~4~S ~v~- Gallons 2006 385 385 Nalco 1250, Carbohydrazide 1251 ColdHSs.67 Noa9 lb/gal . 8.71/"'" a, m. ) r-.- 55 2007 _ 44i Gallons 2006 110 55 Nalco 1318, Sodium Bromide 967 121 Inside chlorine building. 12.2 lb/gal. NaBr = 40%. AST 1273 2007 . R'*'*"
.
- No EHSs. Gallons 2006 1273 500 Nalco 1336 (Sodium Tolyltrazol) 2915 Chem Storage Room. Pails 5 2007-.
Gallons 2006 10 5 Nalco 39M Corrosion Inhibitor, 1433 Chem Storage Room, No EHSs present. 9.5 Pails 5 2007 - Nititre Based lb/gal. Gallons 2006 55 30 Nalco 39M Corrossion Inhibitor, 3677 Oil Room in Turbine Bldg. Drums 5 2007 * *, , Gallons 2006 55 55
~\-. A..
"~
-Naes[ Glkutbyd,-GE Betz Spectrus NX 1105 0Lk- ,, ,5 Nalco Pre-tect 2040 HP (MPA) N. Nalco Pre-tact 2040 HP (MPA) 0 0 0
-.1...........
-.........
.9
.. ,
Turbine building (DI diesel generator crankcase) Flow Through Process Tank Turbine building (D2 diesel generator crankcase) Flow Through Process Tank D3 building se& .Lot* (D3 diesel generator Flow Through Process crankcase) am0 ' L; Ž 6Qca Tank D4 building be,..ea. r (D4 diesel generator Flow Through Process crankcase) ,; V. 0 \ --"
\:,)AO( Tank Oil Room in Turbine Bldg. I AST WY~A 55 J
55 55 II ______
~
330
Oil, Duragard Super HD 15W-40 2956 Oil Room in Turbine Bldg AST 100 2007 : Gallons 2006 100 55 Oil, EHC 3681 Warehouse #3, No EHS Drums 55 2007 . . Gallons 2006 275 275 Oil, Fryquel EHC Hydraulic Fluid 1336 Oil Room inTurbine Bldg. Not an EHS. (9.5 Drums 55 2007 ' " lbfgal) Gallons 2006 10 55 Oil, Gargoyle, SHC 224 3678 Oil Room in Turbine Bldg. Drums 55 2007, , . . Gallons 2006 55 55 Oil, Lube 220 SBO Building (lube oil storage tank). Actual AST 850 2007 .-. 4A' - product is Shell Rotella T Multilube Oil: 7.3 lb/gal Glos 20 80 600 and no EHSs or reoortable TRIs. Gallons 2006 850 "_800,_,_ Oil, Lube 221 22 SBO Building (lube oil storage tank). Actual AST 850 2007 P{V * " product is Shell Rotella T Multilube Oil: 7.3 lb/gal G25 and no EHSs or recortable TRIs. Gallons 2006 850 __ __ 800__ J__ Oil, 4,.Madzlp Turbine Lube Oil 1-2 584 584 Oil Room in Turbine Bldg. AST 14000 2007 ,. . . Gallons 2006 14000 10000. Oil, Mobil 450 NC 3686 warehouse #3 Drums 55 2007 , ; Gallons 2006 1265 1265 Oil, Mobil 450 NC 3687 Oil Room in Turbine Bldg. Drums 55 2007 ,, W'AA *'2 ' Gallons 2006 55 55 Oil, Mobil Gard 629 2958 Oil Room in Turbine Bldg. glit*6*, AST 100 2007 IN 0 . ,.,, , Gallons 2006 100 55 , OIl, Mobil Gard 629 3690 Warehouse #3 Drums 55 2007 U', Gallons 2006 440 440 Oil, Mobil Rarus 827 2965 Oil Room in Turbine Bldg..4N' Oil is filtered AST 100 2007 Y,-,-( , Gallons 2006 100 55 Oil, Mobil SHC 525 3688 Oil Room InTurbine Bldg. Drums 55 2007 .. Gallons 2006 55 55 Oil, Mobil SHC 630 1746 Oil Room in Turbine Bldg. AST 100 2007 ""'Ai i . Gallons 2006 100 55 Oil, Mobil SHC 630 3691 Oil Room In Turbine Bldg. Drums 55 2007 i , ,; Gallons 2006 55 55 Oil, Mobil SHC 824 3692 Warehouse #3 Drums 55 2007 , L * = ""¶'" J Gallons 2006 1045 1045 " Oil, Mobil -SHC 824 3693 Oil Room in Turbine Bldg. Drums 55 2007 i * -- Gallons 2006 110 55 Oil, Mobil SHC-525 2970 Oil Room In Turbine Bldg. AST 100 2007 . . . . Gallons 2006 100 .55 *. ,.,:,.. Oil, Mobil SHC-632 2969 Oil Room in Turbine Bldg. AST 100 2007 (&./,' ,; , Gallons 2006 100 55 __________ 0
Oil, Mobile SHC 630 2955 Oil Room in Turbine _1C'M'. el6a.lka. AST 100 2007 '" Gallons 2006 100 55 H I Oil, Mobilgard 450 NC 2959 Oil Room Turbine Bldg. AST 100 2007 . Gallons 2006 55ON Oil, Turbine Lube 585 585 Oil Room in Turbine Bldg. AST 2000 2007 'T . tg f'lC.1)(' {, "Gallons 2006 2000 1500 586 11 Turbine building (#1 turbine generator oil Flow Through Process 14000 2007 -,7. ý
*m Oil, Turbine Lube sump/reservoir) . Tank Gallons 2006 14000 13000 jj*
14000 2007 " " " . 587 21 Turbine building (#2 turbine generator oil Flow Through Process Oil, Turbine Lube sump/reservoir) Tank Gallons 2006 14000 13000 202 202 Outside west of plant (Used Oil Tank). AST 5000 2007 .TS* Oil, Used 1500 __ __ __ 2006 Gallons 3500 . AST 5000 20076 3500f* 1500 o. 203 203 Outside west of plant (Used Oil Tank). Oil, Used Gallons 2006 3500 1500 Oil, Used 217 217 Oil Room Turbine Bldg. AST 250 2007 . " Gallons 2006 250 150 3679 Oil Room in Turbine Bldg. Drums 55 2007 r . 55, .. 55 .. . . Oil, Whiterex 425 Gallons 2006 Oxygen, Liquid 1056 Turbine bldg . Dewars 25 2007 , " *
'00' .
f,. Gallons 2006 50 35-West of plant Tank 1070 2007 . Propane 588 Gallons 20.06 900. 800 Propane 589. West of plant. Used for NPD heat. No EHSs Tank 1000 2007 2006 t 900 ." 800j " , Gallons present. 4.2 lb/gal. . 7 West of plant, Used for NPD Bldg. heat Tank o2007 1000 !*YQ * ` Propane *590 Gallons 2006 900 800 - Tank 250 2007 1657 Me tower bldg Propane Gallons 2006 250 250i
" 2007 250
,Pails (**-
De*ae-Warehouse ,Lth Resin, Amberlite IRN-217, R-ho'fl 3703 4
ýPls20 and Haass9sQWrhueif 2006 -36 ~ ~~
Resin, Clinophthllonite, Fisher 3706 temm Warehouse " Pails Cubic 7 Feet 20067 21 ' '* ,, "' 21
- Cubic 2007 2-house (P
,Ware Pails
.o". 3704 Peeag Resin, PD-11-NH4 Qiz;e"t- 2006 40 40.
Various Locations (installed and In stock). Fiber Drums & Flow Thru 2007 I-- Resins, Demineralizer 1327 Includes: Eplcor anion, cation and mixed bed Process Tanks 37000 resins. No EHSs. 10.0 lb/al Lbs 2006 37000 f Pails " ,*' I 2007 -'J,, 7-f- s T'* ij Resins, PD-32-NH4, EpIcor 3705 DBeon-Warehouse ( ' - G'dble.-eet 2006 100 100
This inventory check will be done periodically, so keep a copy for future reference. Thank you for your help in EPCRA Section 312 compliance. To the best of my knowledge, the information on this form is correct: Signed: 9-"A .7 , Date: i 0 0
~.
No. 2007 Inventory Maximum. Average Xcel Site Container Amount Amount Record Tank Storage 1 Substance # # Storage Location Method 1 Acetylene Gas Outside Hydrogen gas house Cylinders 40 ibs 160 lbs 160 lbs 3000 2 Nitrogen Gas Gas House Cylinders 60 lbs Lbs. 3000 Lbs. Outside Hydrogen gas house and various 3 Propane Gas locations Cylinders 50 lbs 100 lbs 100 lbs 4 Fleet Charge Antifreeze Oil Room Turbine Bldg. Drums 55 gal 55 gal 55 gal 5 600 Cutting Fluid ,Oil Room Turbine Bldg. Drums 55 gal 55 gal 55 gal 6 Waste Oil Oil Room Turbine Bldg. Drums 55 gal 55 gal 55 gal Oil, Duragard Super HD 15W-
- 7 40 Oil Room Turbine Bldg. Drums 55 gal 55 gal 55 gal 8 Fleet Charge 715' NE Corner of Turbine Building Drums 55 gal 110 gal 55 gal 9 Sodium Bisulfate Chem Storage Room Pails 5 gal 10 gal 5 gal 2500 10 Ice Melt Various locations in and outside plant Bags 50 Lbs. lbs 2500 lbs.
11 SAC H resin Storage Area by cold lab. Pails 5 cu. Ft. 5 cu. Ft 5 cu. Ft. 12 Nalco 1250 Warehouse #2 Drums 55 gal 110 gal 110 gal 13 Nalco 39M Warehouse #2 Drums 46.3 lb 92.6 lb 92.6 lb 14 SpectrusNX11105 Warehouse #2 Pails 43 lb 86 lb 86 lb 15 Spectrus NX 1106 Warehouse #2 Pails 42 lb 84 lb 84 lb 16 Nalco 8322 Warehouse #2 Drums 55 gal 165 gal 165 gal 17 Sodium Hydroxide (50%) Warehouse #2 Drums 187 lb 374 lb 374 lb 18 Sonotrace Warehouse #1. Drums 55 gal 55 gal 55 gal 19 Alumina Dessicant Warehouse #1 Drums 30 gal 120 gal 120 gal 20 Alumina Dessicant Warehouse #1 Drums 20 gal 60 gal 60 gal 0 0
&r~{2~ :jf, New~ 9trn NO.
Xcel Site Substance Record # Tank# Storage Location 1 Acetylene Gas Outside Hydrogen gas house 2 Nitrogen Gas Gas House 3 Propane Gas Outside Hydrogen gas house and variol 4 Fleet Charge Antifreeze Oil Room Turbine Bldg. 5 600 Cutting Fluid Oil Room Turbine Bldg. 6 Waste Oil Oil Room Turbine Bldg. 7 Oil, Duragard Super HD 15W-40 Oil Room Turbine Bldg. 8 Fleet Charge 715' NE Corner of Turbine Building 9 Sodium Bisulfate Chem Storage Room 10 Ice Melt Various locations in and outside plant 11 SAC H resin Storage Area by cold lab. 12 Nalco 1250 Warehouse #2 13 Nalco 39M Warehouse #2 14 Spectrus NX1105 Warehouse #2 15 Spectrus NX 1106 Warehouse #2 16 Nalco 8322 Warehouse #2 17 Sodium Hydroxide (50%) Warehouse #2 18 Sonotrace Warehouse #1. 19 Alumina Dessicant Warehouse #1 20 Alumina Dessicant Warehouse #1
2007 Inventory Maximum Container Amount Average Amount Storage Method Cylinders 40 lbs 160 lbs 160 lbs Cylinders 60 lbs 3000 Lbs. 3000 Lbs. Cylinders 50 lbs 100 lbs 100 lbs Drums 55 gal 55 gal 55 gal Drums 55 gal 55 gal 55 gal Drums 55 gal 55 gal 55 gal Drums 55 gal 55 gal 55 gal Drums 55 gal 110 gal 55 gal Pails 5 gal 10 gal 5 gal Bags 50 Lbs. 2500 lbs 2500 lbs. Pails 5 cu. Ft. 5 cu. Ft 5 cu. Ft. Drums 55 gal 110 gal 110 gal Drums 46.3 lb 92.6 lb 92.6 lb Pails 43 lb 86 lb 86 lb Pails 42 lb 84 lb 84 lb Drums 55 gal 165 gal 165 gal Drums 187 lb 374 lb 374 lb Drums 55 gal 55 gal 55 gal Drums 30 gal 120 gal 120 gal Drums 20 gal 60 gal 60 gal
2/10/2008 EPCRA SECON 312 (TIER II) EPA Reporting Year: 2007 HAZARDOUS SUBSTANCE INVENTORY REPORT Plant: PrairieIsland GeneratingPlant Contact Person: Joan Neubauer Work Phone: (651) 388-1121 Alternate Contact: Jeanne Tobias Work Phone: (651) 388-1121 ERC ID#: 25-150-0001 24 hr#: (651) 388-5577 Maximum Xcel Site Container Amount Average Amount Reportable Substance Record # Tank # Storage Location Storage Method Capacity On-Site On-Site in 2007? 600 Cutting Fluid 1450 Oil Room Turbine Bldg.,9.7 lbs/gal, no EHS Drums 55 55 55 Yes Gallons Gallons Gallons Acetone 561 Warehouse #3, Drums 55 110 110 No - Gallons Gallons Gallons Acetone 3670 695 Truck Aisle, No EHS Drums 55 55 55No Gallons Gallons Gallons Acetylene Gas 3749 Outside Hydrogen gas house Cylinders 40 160 160 No Lbs Lbs Lbs Alcohol Milsolve 562 Warehouse #3 Barrels 55 55 55No Gallons Gallons Gallons Alcohol Milsolve 3671 695 Truck Aisle Drums 55 110 55 No Gallons Gallons Gallons Alumina Dessicant 2193 Warehouse #1 (products in 20 and 30 gallons Drums 30 180 180 containers) Gallons Gallons Gallons No Alumina Dessicant 2522 Warehouse #1. For air dryer Drums 55 110 110 No Gallons Gallons Gallons Ammonium Hydroxide (28%) 1717 Outside Cold Lab. Not an EHS. Liquid is 7.5 Pails 5 150 150 lb/gal. Approx. 28% -30% NH3. Liters Liters Liters No Batteries -Lead & Lead 2065 Various areas (warehouse #1 and #8, Turbine and Battery 46,200 46,200 Compounds in Lead-Acid Service Bldg., battery room etc.) Approx. 10.6 lb Yes of Pb/lb of acid. 10.6 x 4360 lb of acid = 46.200 Lbs Lbs Lbs Batteries, Sulfuric Acid in Lead 1744 Various areas (warehouse #1 and #8, Turbine and Battery 4360 4360 Acid Batteries Service Bldg., battery room etc.) Total = approx. Yes 4360 lb of sulfuric acid. Lbs Lbs Lbs Black Beauty Slag Products 2279 Outside paintshop -south side. Slag used for sand Bags 50 32,000 20,000 Yes blasting. Lbs Lbs Lbs Boric Acid (0 - 2%) 553 Reactor coolant system Flow Through Process 14000 14,000 7,000 Tank Lbs Lbs Lbs Boric Acid (0 - 2%) Solid 550 Above Laundry Warehouse area#3.
#2 and - 755' level, Decon Bags 50 Lbs 38,000 Lbs
- 38,000 Lbs Yes 263 of 401
2/10/2008 EPCRA SECON 312 (TIER II) EPA Reporting Year: 2007 HAZARDOUS SUBSTANCE INVENTORY REPORT Plant: PrairieIsland GeneratingPlant Contact Person: Joan Neubauer Work Phone: (651) 388-1121 Alternate Contact: Jeanne Tobias Work Phone: (651) 388-1121 ERC ID#: 25-150-0001 24 hr#: (651) 388-5577 Maximum Xcel Site Container Amount Average Amount Reportable Substance Record # Tank # Storage Location Storage Method Capacity On-Site On-Site in 2007? Boric Acid (12%) 554 735' auxiliary bldg (121 boric acid batching tank) Flow Through Process 800 800 800 Tank Gallons Gallons Gallons Boric Acid (12%) 940 735' auxiliary building (11 boric acid storage tank) Flow Through Process 5000 5000 5000 Tank Gallons Gallons Gallons Yes-Boric Acid (12%) 941 735' auxiliary building (121 boric acid storage Flow Through Process 5000 5000 5000 tank) density =12.3 lb/gal Tank Gallons Gallons Gallons Yes Boric Acid (12%) 942 735' auxiliary building (21 boric acid storage tank) Flow Through Process 5000 5000 5000 Tank Gallons Gallons Gallons Boric Acid (6%). 552 Spent fuel pool and refueling storage tank Other 50000 50000 50000 Yes Lbs Lbs Lbs Brine, R. 0. 1965 Indoor, West of water treatment (flow trough AST 10000 10,000 10,000 process tank). No EHS. Assumed water density No 8.4 lb/aal. Brine concentration in R. 0. water 26% Gallons Gallons Gallons Carbon Dioxide, Gas 1053 Gas House Cylinders 60 3000 3000 Yes Lbs Lbs Lbs Carbon Dioxide, Liquid 1052 Turbine bldg Tank 12000 12,000 12,000 Yes Lbs Lbs Lbs Coke, Metallurgical 2369 Bone Yard. Used in turbine bldg sumps to absorb Drums 65,000 30,000 oil. (Note: inventory should include installed coke Yes
+ amt on-site in drums + amt on-site awaitina Lbs Lbs Lbs Diesel Fuel 2015 Tank farm, north of plant near #5 warehouse. AST 550 500 250 Yes Gallons Gallons Gallons Diesel Fuel #2 194 194 Inside building east of guard house (day tank for AST 500 500 500 security diesel) Gallons Gallons Gallons Yes Diesel Fuel #2 195 195 Plant screenhouse (#12 diesel cooling water AST 580 575 575 pump day tank) Gallons Gallons Gallons Yes Diesel Fuel #2 196 196 Plant screenhouse (# 22 diesel cooling water AST 580 575 575 pump day tank) Gallons Gallons Gallons Yes Diesel Fuel #2 197 197 Turbine Bldg. D1 diesel generator fuel oil day tank AST 500 500 500 Yes Gallons Gallons Gallons 264 of 401
2/10/2008 EPCRA SEC 9 N 312 (TIER II) EPA Reporting Year: 2007 HAZARDOUS SUBSTANCE INVENTORY REPORT Plant: PrairieIsland Generating Plant Contact Person: Joan Neubauer Work Phone: (651) 388-1121 Alternate Contact: Jeanne Tobias Work Phone: (651) 388-1121 ERC ID#: 25-150-0001 24 hr#: (651) 388-5577 Maximum Xcel Site Container Amount Average Amount Reportable Substance Record # Tank # Storage Location Storage Method Capacity On-Site On-Site in 2007? Diesel Fuel #2 198 198 Turbine bldg (D2 diesel generator fuel oil day tank) AST 500 500 500 Yes Gallons Gallons Gallons Diesel Fuel #2 199 199 Plant screenhouse (fire pump diesel oil day tank) AST 280 200 200 Yes - Gallons Gallons Gallons Diesel Fuel #2 200 200 D3 Diesel Generator Day Tank AST 125 125 100 Yes Gallons Gallons Gallons Diesel Fuel #2 201 201 D4 Diesel Generator Day Tank AST 125 125 100 Gallons Gallons Gallons Diesel Fuel #2 210 210 D5/D6 Fuel Oil Receipt Tank, outside near SBO AST 15000 15000 1000 Yes Bldg. Gallons Gallons Gallons Diesel Fuel #2 211 211 D5/D6 Fuel Oil Storage Tank - Vault AST 32778 32778 32700 Y Yes Gallons Gallons Gallons Diesel Fuel #2 212 212 D5/D6 22 Fuel Oil Storage Tank -Vault AST 32778 32778 32700 Gallons Gallons Gallons Yes Diesel Fuel #2 213 213 D5/D6 23 Fuel Oil Storage Tank Vault AST 32778 32778 32700 Yes Yes Gallons Gallons Gallons Diesel Fuel #2 218 218 SOBdgD21 DaylTank ftora D5 DieseValtGnrao AST Gallons 6657 Gallons 6657 Gallons 64700Ye Diesel Fuel #2 219 219 SBO Bldg. 22 Day Tank for 06 Diesel Generator AST 665 665 640 Yes Gallons Gallons Gallons Yes Diesel Fuel #2 219 21 P Bldg. 2 Day SBO u Tank for DpDiesel Generator AST 665 665 640 Diesel Fuel #2 459 1219 PB lant 22eehs (daTnkfrDDiesel fir eneraol torag UST 4000 Gallons 66400030 Gallons Gallons tn)Gallons Gallons GallonsYe Diesel Fuel #2 460 124 North of Heated Hazwaste building (124 diesel UST 19500 19500 - 19500 generator oil storage tank) Gallons Gallons Gallons Yes Diesel Fuel #2 461 123 North of Heated Hazwaste building (123 diesel UST 19500 19500 19500 generator oil storage tank) Gallons Gallons Gallons Yes 265 of 401
2/10/2008 @ EPCRA SECTIN 312 (TIER II) EPA Reporting Year: 2007 HAZARDOUS SUBSTANCE INVENTORY REPORT Plant: PrairieIsland GeneratingPlant Contact Person: Joan Neubauer Work Phone: (651) 388-1121 Alternate Contact: Jeanne Tobias Work Phone: (651) 388-1121 ERC ID#: 25-150-0001 24 hr #. (651) 388-5577 Maximum Xcel Site Container Amount Average Amount Reportable Substance Record # Tank # Storage Location Storage Method Capacity On-Site On-Site in 2007? Diesel Fuel #2 462 122 North of Heated Hazwaste building (122 diesel generator oil storage tank) UST 19500 Gallons 19500 Gallons T 19500 Gallons Yes Diesel Fuel #2 463 121 North of Heated Hazwaste building (121 diesel UST 19500 19500 19500 generator oil storage tank) Gallons Gallons Gallons Yes - Diesel Fuel #2 464 122 East of turbine building (122 heating boiler oil UST 35000 35000 25000 storage tank) Gallons Gallons Gallons Yes Diesel Fuel #2 465 121 East of turbine bldg. (121 heating boiler oil UST 35000 35000 35000 storage tank) Gallons Gallons Gallons Yes Diesel Fuel #2 466 122 East of Plant Screenhouse (22 diesel cooling UST 19500 19500 19500 water pump oil storage tank) Gallons Gallons Gallons Yes Diesel Fuel #2 467 121 East of Plant Screenhouse (12 diesel cooling UST 19500 19500 19500 water pump oil storage tank) Gallons Gallons Gallons Yes Ethylene Glycol (100%) 592 Warehouse #3. Not an EHS. 9.4 lb/gal Drums 55 110 110 Yes Gallons Gallons Gallons Ethylene Glycol (50%) 593 D5 & D6 building system, not an EHS Other 5000 4800 4600 Yes Gallons Gallons Gallons Ethylene Glycol (50%) 594 Aux bldg, Turbine bldg, Admin Heating Other 3500 1200 1000 system,computer room chiller Gallons Gallons Gallons Fleet Charge Antifreeze 1438 Oil room Turbine Bldg., No EHS, 50% ethylene Drums 55 55 55 glycol, 9.4 lbs gal Gallons Gallons Gallons Yes Formaldehyde various grades 1740 Formaldehyde various grades at PI environmental Pails 5 11 10 (5%, 10% & 37%) Laboratory Gallons Gallons Gallons No Freon 113 3672 Warehouse #3, No EHS, Pails 15 90 60 No Gallons Gallons Gallons Freon 22 1050 Warehouse #3, (no EHSs) (9.9 lb/gal) Cylinders 20 20 20 No Lbs Lbs Lbs Gasoline 2014 2014 Tank farm north of plant, near #5 Warehouse. AST 550 500 250 No Gallons Gallons Gallons 266 of401
2/10/2008 EPCRA SECON 312 (TIER II) EPA Reporting Year: 2007 HAZARDOUS SUBSTANCE INVENTORY REPORT Plant: PrairieIsland GeneratingPlant Contact Person: Joan Neubauer Work Phone: (651) 388-1121 Alternate Contact: Jeanne Tobias Work Phone: (651) 388-1121 ERC ID#: 25-150-0001 24 hr#: (651) 388-5577 Maximum Xcel Site Container Amount Average Amount Reportable Substance Record # Tank # Storage Location Storage Method Capacity On-Site On-Site in 2007? Halon 1301 1046 Various fire suppression areas; various sizes Cylinders 3731 3731 No Lbs Lbs Lbs Hydrazine (1-5%) 3676 Chem Feed Ul and U2 Process piping 175 Piping 175 350 350 gallons each, EHS yes, 8.5 lb/gal Gallons Gallons Gallons Yes-Hydrazine (35%) 558 3 Outside cold lab. EHS. Liquid = 8.5 lb/gal, Unit 1 Drums - 30 120 60 Turbine Bldg. 695' Gallons Gallons Gallons Yes Hydrazine 35% Scavox 3675 Decon Warehouse #2, EHS, 8.5 lb/gal Drums 30 270 180 Yes Gallons Gallons Gallons Hydrogen Gas 1054 Hydrogen gas house (1 lb/ 194 ft3) Cylinders 261 13050 13050 No Cubic Feet Cubic Feet Cubic Feet . Ice Melt 3707 Various locations inside and outside of plant. Bags 50 2500 2500 No Lbs Lbs Lbs Isothiazolin, GE Betz Spectrus 1962 Chem Storage Room, no EHS, 11.62 lb/gal. Pails 5 5. 5 1106 Gallons Gallons Gallons No Kerosene 781 Warehouse #3, 6.9 lb/gal. Not an EHS. Pails 5 0 0 No Gallons Gallons Gallons Kerosene 1718 Warehouse #3, 6.9 lb/gal. Not an EHS. Drums 55 220 110 No Gallons Gallons Gallons Molluscide CL-2005, Chemtreat, 3685 This product was at the site for 3 days in 4 drums Drums 55 0 0 ZM Molluscide and 4 totes. Gallons Gallons Gallons No Molluscide CL-2005, Chemtreat, 3702 This product was at the site for 3 days in 4 drums Tote Tank 400 3200 0 ZM Molluscide and 4 totes. Gallons Gallons Gallons Yes Molybdate Corrosion InhibitorGE 2914 Unit 2 Turbine Bldg. 715", Decon Warehouse #3 Drums 55 165 110 Betz MD 4106 by 2X system. . Gallons Gallons Gallons No Nalco 1250, Carbohydrazide 1251 Storage area outside ofCold Lab 695'. No EHSs. Drums 55 55 55No 8.7 lb/gal. Gallons Gallons Gallons Nalco 1318, Sodium Bromide 967 121 Inside chlorine building. 12.2 Ib/gal. NaBr = 40%. AST 1273 1273 00 Yes No EHSs. Gallons Gallons Gallons 267 of 401
2/10/2008 EPCRA SECION 312 (TIER II) EPA Reporting Year: 2007 HAZARDOUS SUBSTANCE INVENTORY REPORT Plant: PrairieIsland GeneratingPlant Contact Person: Joan Neubauer Work Phone: (651) 388-1121 Alternate Contact: Jeanne Tobias Work Phone: (651) 388-1121 ERC ID#: 25-150-0001 24 hr #: (651) 388-5577 Maximum Xcel Site Container Amount Average Amount Reportable Substance Record # Tank # Storage Location Storage Method Capacity On-Site On-Site in 2007? Nalco 1336 (Sodium Tolyltriazol) 2915 Chem Storage Room. Pails 5 10 5No Gallons Gallons Gallons Nalco 39M 1741 Warehouse #2. No EHSs. 9.9 lb/gal. Amts Drums 46.3 92.6 92.6 present in 1999 = 5 gal max. Lbs Lbs Lbs No Nalco 39M Corrosion Inhibitor 1205 Warehouse #2, Cold Lab. No EHSs. (9.5 lb/gal). Drums 5 10 5 No Gallons Gallons Gallons Nalco 39M Corrosion Inhibitor, 1433 Chem Storage Room, No EHSs present. 9.5 Pails 5 5 5 Nitrite Based lb/gal. Gallons Gallons Gallons No Nalco 39M Corrossion Inhibitor, 3677 Oil Room in Turbine Bldg. Drums 55 55 55 Nitrite Based Gallons Gallons Gallons No Nalco 7338 (Biocide) 833 Chem Storage Room, No EHSs (9.3 lb/gal) Pails 5 5 5 No Gallons Gallons Gallons Nalco 8103 Coagulant 2917 Chem Storage Room, No EHS, 9.1 lbs/gal Pails 5 10 5 No Gallons Gallons Gallons Nalco 8320 (300 ppm Sodium 2016 This tank is actualy a "holding" tank for when AST 500 500 150 Chromate) maintenance is performed on the emergency No diesel. No EHSs oresent. ADDrox. 8.3 lb/oal This Gallons Gallons Gallons Nalco 8320, Sodium Chromate 910 Warehouse #2, Pure prodct. No EHSs. 14.2 Drums 30 30 30 lb/gal. Gallons Gallons Gallons Nalco 8322 (Corrosion Inhibitor), 223 Warehouse #2. No EHSs or TRI. (9.7 lb/gal). Drums 55 55 55 Molybdate based Product replaced with GE BETZ, MD 4106 per J. No Tobias 2004 TIER II List. Gallons Gallons Gallons Nalco 8338 (Nitrite Based 2916 Chem Storage Room, Pails 5 10 10 corrosion Inhibitor) Gallons Gallons Gallons No Nalco Glutablehyde, GE Betz 2156 Chem Storage Room, Not EHS Pails 5 5 5 Spectrus NX 1105 Gallons Gallons Gallons No Nalco Pre-tect 2040 HP (MPA) 1044 Warehouse #2, No EHSs present. 8.1 lb/gal. Drums 55 200 165 No Gallons Gallons Gallons Nalco Pre-tect 2040 HP (MPA) 3673 Chem Feed fume hood both units Drums 55 110 110 Gallons Gallons Gallons No 268 of 401
2/10/2008 0 EPCRA SEC N 312 (TIER II) EPA Reporting Year: 2007 HAZARDOUS SUBSTANCE INVENTORY REPORT Plant: PrairieIslandGeneratingPlant Contact Person: Joan Neubauer Work Phone: (651) 388-1121 Alternate Contact: Jeanne Tobias Work Phone: (651) 388-1121 ERC ID#: 25-150-0001 24 hr #: (651) 388-5577 Maximum Xcel Site Container Amount Average Amount Reportable Substance Record # Tank # Storage Location Storage Method Capacity On-Site On-Site in 2007? Nalco Pre-tect 2040 HP (MPA) 3674 Cold Lab storage area, No EHS Drums 55 110 110 No Gallons Gallons Gallons Nalco Spectrus NX 1105 1686 Warehouse #2 Fiber Drums 43 172 86 No Lbs Lbs Lbs Nitrogen Gas 3750 Gas House Cylinders 60 3000 3000 Yes Gallons Gallons Gallons Nitrogen, Liquid 555 East of turbine building Tank 1500 1500 1500 Yes Gallons Gallons Gallons Nitrogen, Liquid 556 East of turbine building Tank 1500 1500 1500 Yes Gallons Gallons Gallons Oil Mobil SHC 525 3689 Warehouse #3 Drums 55 330 330 Yes Gallons Gallons Gallons Oil Mobil, Voetra Oil #2 3684 Oil Room in Turbine Bldg. Drums 55 55 55Yes Gallons Gallons Gallons Oil SAE 15W-40W Soot Control 3682 Warehouse #3 Drums 55 1265 1265 Yes Gallons Gallons Gallons Oil, Caltran Transformer 3680 Warehouse #3 Drums 55 0 0 Yes Gallons Gallons Gallons Oil, Delvac 1330 3683 Warehouse #3 Drums 55 0 0 Yes Gallons Gallons Gallons Oil, Delvac 1630 2967 Oil Room in Turbine Bldg. AST 100 100 55 Yes Gallons Gallons Gallons Oil, Diesel Lube 572 Plant Screenhouse (#12 diesel cooling water Flow Through Process 110 110 100 pump crankcase) Tank Gallons Gallons Gallons Oil, Diesel Lube 573 Plant Screenhouse (#22 diesel cooling water Flow Through Process 110 110 100 pump crankcase) Tank Gallons Gallons Gallons Yes Oil, Diesel Lube 576 Turbine building (D1 diesel generator crankcase) Flow Through Process 250 250 150 Tank Gallons Gallons Gallons 269 of 401
2/10/2008 EPCRA SECON 312 (TIER II) EPA Reporting Year: 2007 HAZARDOUS SUBSTANCE INVENTORY REPORT Plant: PrairieIsland GeneratingPlant Contact Person: Joan Neubauer Work Phone: (651) 388-1121 Alternate Contact: Jeanne Tobias Work Phone: (651) 388-1121 ERC ID#: 25-150-0001 24 hr#: (651) 388-5577 Maximum Xcel Site Container Amount Average Amount Reportable Substance Record # Tank # Storage Location Storage Method Capacity On-Site On-Site in 2007? Oil, Diesel Lube 577 Turbine building (02 diesel generator crankcase) Flow Through Process 250 250 - 150 Tank Gallons Gallons Gallons Yes Oil, Diesel Lube 579 D3 building south of reactor (D3 diesel generator Flow Through Process 250 250 150 crankcase). East of Turbine Bldg. Tank Gallons Gallons Gallons Oil, Diesel Lube 580 D4 building south of reactor (D4 diesel generator Flow Through Process 250 250 150 Yes crankcase). East of Turbine Bldg. Tank Gallons Gallons Gallons Oil, DTE 24 2966 Oil Room in Turbine Bldg. AST 100 100 55Yes Gallons Gallons Gallons Oil, DTE 25 2968 Oil Room in Turbine Bldg. AST 100 100 55 Yes Gallons Gallons Gallons Oil, DTE 25 3701 Warehouse #3 I Drums 55 55 55 Yes Gallons Gallons Gallons Oil, DTE Oil BB SAE 40 2957 Oil Room in Turbine Bldg. AST 100 100 55 Yes Gallons Gallons Gallons Oil, DTE Oil BB SAE 40 3694 Warehouse #3 Drums 55 330 165 Yes Gallons Gallons Gallons Oil, DTE Oil Extra Heavy SAE 30 2960 Oil Room in Turbine Bldg. AST 100 100 55 Yes Gallons Gallons Gallons Oil, DTE Oil Extra Heavy SAE 30 3695 Warehouse #3 Drums 55 495 165 Yes Gallons Gallons Gallons Oil, DTE Oil Heavy 2961 Oil Room in Turbine Bldg. AST 100 100 55 Yes Gallons Gallons Gallons Oil, DTE Oil Heavy 3696 Warehouse #3 Drums 55 330 275 Yes Gallons Gallons Gallons Oil, DTE Oil Heavy Medium' SAE 3697 Warehouse #3 Drums 55 330 330 20 Gallons Gallons Gallons Oil, DTE Oil Heavy Medium SAE 3698 Oil Room in Turbine Bldg. Drums 55 55 55 20 Gallons Gallons Gallons 270 of 401
2/10/2008 EPCRA SECON 312 (TIER II) EPA Reporting Year: 2007 HAZARDOUS SUBSTANCE INVENTORY REPORT Plant: PrairieIsland GeneratingPlant Contact Person: Joan Neubauer Work Phone: (651) 388-1121 Alternate Contact: Jeanne Tobias Work Phone: (651) 388-1121 ERC ID#: 25-150-0001 24 hr #: (651) 388-5577 Maximum Xcel Site Container Amount Average Amount Reportable Substance Record # Tank # Storage Location Storage Method Capacity On-Site On-Site in 2007? OIl, DTE Oil Heavy Medium SAE 3699 Oil Room in Turbine Bldg. Tank 100 100 55 20 Gallons Gallons Gallons Oil, DTE Oil Light SAE 10 3700 Warehouse #3 Drums 55 .275 220 Yes'" Gallons Gallons Gallons Oil, DTE Oil Medium 2963 Oil Room in Turbine Bldg. AST 100 100 55 Yes Gallons Gallons Gallons Oil, DTE Oil, SAE10 2964 Oil Room in Turbine Uniti Bldg. AST 100 100 55 Yes Gallons Gallons Gallons Oil, Duragard Super HD 15W40 1328 Oil Room, Turbine Bldg., No EHS Drums 55 55 55 No Gallons Gallons Gallons Oil, Duragard Super HD 15W-40 2956 Oil Room in Turbine Bldg AST 100 100 55 Yes Gallons Gallons Gallons Oil, EHC 3681 Warehouse #3, No EHS Drums 55 110 110 Yes Gallons Gallons Gallons Oil, Fryquel EHC Hydraulic Fluid 1336 Oil Room in Turbine Bldg. Not an EHS. (9.5 Drums 55 55 55 lb/gal) Gallons Gallons Gallons Yes Oil, Gargoyle, SHC 224 3678 Oil Room in Turbine Bldg. Drums 55 55 55 Yes Gallons Gallons Gallons Oil, Lube 220 SBO Building (lube oil storage tank). Actual AST 850 850 800 product is Shell Rotella T Multilube Oil: 7.3 lb/gal Yes and no EHSs or reoortable TRIs. Gallons Gallons Gallons Oil, Lube 221 22' SBO Building (lube oil storage tank). Actual AST 850 850 800 product is Shell Rotella T Multilube Oil: 7.3 lb/gal Yes and no EHSs or reoortable TRIs. Gallons Gallons Gallons Oil, Mobil 450 NC 3686 warehouse #3 Drums 55 1265 880 Yes Gallons Gallons Gallons Oil, Mobil 450 NC 3687 Oil Room in Turbine Bldg. Drums 55 55 55 Yes Gallons Gallons Gallons Oil, Mobil Gard 629 2958 Oil Room in Turbine Bldg. AST 100 100 55 Yes Gallons Gallons Gallons 271 of 401
2/10/2008 EPCRA SECTN 312 (TIER II) EPA Reporting Year: 2007 HAZARDOUS SUBSTANCE INVENTORY REPORT Plant: PrairieIsland GeneratingPlant ContactPerson: Joan Neubauer Work Phone: (651) 388-1121 Alternate Contact: Jeanne Tobias Work Phone: (651) 388-1121 ERC ID#: 25-150-0001 24 hr #: (651) 388-5577 Maximum Xcel Site Container Amount Average Amount Reportable Substance Record # Tank # Storage Location Storage Method Capacity On-Site On-Site in 2007? Oil, Mobil Gard 629 3690 Warehouse #3 Drums 55 0 00 I Yes Gallons Gallons Gallons Oil, Mobil Rarus 827 2965 Oil Room in Turbine Bldg. 695' Oil is filtered AST 100 100. 55 Yes Gallons Gallons Gallons Oil, Mobil SHC 525 3688 Oil Room in Turbine Bldg. Drums 55 55 55Yes Gallons Gallons Gallons Oil, Mobil SHC 630 1746 Oil Room in Turbine Bldg. AST 100 100 55 Yes Gallons Gallons Gallons Oil, Mobil SHC 630 3691 Oil Room in Turbine Bldg. Drums 55 55 55 Yes Gallons Gallons Gallons Oil, Mobil SHC 824 3692 Warehouse #3 Drums 55 1045 990 Yes Gallons Gallons Gallons Oil, Mobil -SHC 824 3693 Oil Room in Turbine Bldg. Drums 55 110 55 Gallons Yes Gallons Gallons Oil, Mobil SHC-525 2970 Oil Room in Turbine Bldg. AST 100 100 55 Yes Gallons Gallons Gallons Oil, Mobil SHC-632 2969 Oil Room in Turbine Bldg. AST 100 100 55
- Yes Gallons Gallons Gallons Oil, Mobile SHC 630 2955 Oil Room in Turbine Big 695'. Oil is filtered. AST 100 100 55 2955 IYes Gallons Gallons Gallons Oil, Mobilgard 450 NC 2959 Oil Room Turbine Bldg. AST 100 100 55Yes Gallons Gallons Gallons Oil, Stoage Tank, Turbine Lube Oil 584 584 Oil Room in Turbine Bldg. AST 14000 .14000 10000 1-2 Gallons Gallons Gallons Yes Oil, Turbine Lube .586 11 Turbine building (#1 turbine generator oil Flow Through Process 14000 14000 13000 sump/reservoir) Tank Gallons Gallons Gallons Yes Oil, Turbine Lube 587 21 Turbine building (#2 turbine generator oil Flow Through Process 14000 14000 13000 sump/reservoir) Tank Gallons Gallons Gallons 272 of 401
2/10/2008 EPCRA SECTON 312 (TIER II) EPA Reporting Year: 2007 HAZARDOUS SUBSTANCE INVENTORY REPORT Plant: PrairieIsland GeneratingPlant Contact Person: Joan Neubauer Work Phone: (651) 388-1121 Alternate Contact: Jeanne Tobias Work Phone: (651) 388-1121 ERC ID#: 25-150-0001 24 hr#: (651) 388-5577 Maximum Xcel site Container Amount Average Amount Reportable Substance Record # Tank # Storage Location Storage Method Capacity On-Site On-Site in 2007? Oil, Turbine Lube (Make Up Tank) 585 585 Oil Room in Turbine Bldg. AST 2000 2000 1500 Yes Gallons Gallons Gallons Oil, Used 202 202 Outside west of plant (Used Oil Tank). AST 5000 1000 1000 Yes Gallons Gallons Gallons Oil, Used 203 203 Outside west of plant (Used Oil Tank). AST 5000 1000 1000 Yes Gallons Gallons Gallons Oil, Used 217 217 Oil Room Turbine Bldg. AST 250 250 150 Yes Gallons Gallons Gallons Oil, Whiterex 425 3679 Oil Room in Turbine Bldg. Drums 55
- 55 55 Y Yes Gallons Gallons Gallons Oxygen, Liquid 1056 Turbine bldg Dewars 25 50 35No Gallons Gallons Gallons Propane 588 West of plant Tank 1000 900 800 Yes Gallons Gallons Gallons Propane 589 West of plant. Used for NPD heat. No EHSs Tank 1000 900 800 present. 4.2 lb/gal. Gallons Gallons Gallons Yes Propane 590 West of plant, Used for NPD Bldg. heat. Tank 1000 900 - 800 Yes Gallons Gallons Gallons Propane 1657 Met tower bldg Tank 250 250 250 Yes Gallons Gallons Gallons Propane Gas 3751 Outside Hydrogen Gas and other locations Cylinders 50 100 100 Yes Lbs Lbs Lbs Resin, Amberlite IRN-217, Rohm 3703 Decon Warehouse #2. Pails 138 5950 5950 and Haas Lbs Lbs Lbs No Resin, Clinophthilonite, Fisher 3706 Decon Warehouse #2.
- Pails
- 1 21 21 No Cubic Feet Cubic Feet Cubic Feet Resin, PD-11-NH4, Epicor 3704 Decon Warehouse#2 Pails. 28 700 700 No Lbs Lbs Lbs 273 of 401
2/10/2008 & EPCRA SECOON 312 (TIER II) 0 EPA Reporting Year: 2007 HAZARDOUS SUBSTANCE INVENTORY REPORT Plant: PrairieIsland GeneratingPlant Contact Person: Joan Neubauer Work Phone: (651) 388-1121 Alternate Contact: Jeanne Tobias Work Phone: (651) 388-1121 ERC ID#: 25-150-0001 24 hr #: (651) 388-5577 Maximum Xcel Site Container Amount Average Amount Reportable Substance Record # Tank # Storage Location Storage Method Capacity On-Site On-Site in 2007? Resins, Demineralizer 1327 Various Locations (installed and in stock). Fiber Drums & Flow Thru 37000 37000 Includes: Epicor anion, cation and mixed bed Process Tanks Yes resins. No EHSs. 10.0 lb/cal Lbs Lbs Lbs Resins, PD-32-NH4, Epicor 3705 Decon Warehouse #2. Pails 28 728 728 No Lbs Lbs Lbs Salt (Sodium Chloride) 2296 Training center and various plant areas and Bags 50 2000 2000 turbine bldg. No EHSs present. Lbs Lbs Lbs No Sodium Bisulfate 1743 Warehouse #2, Not an EHS.Water Treatment Drums 100 0 0 Cleaning Lbs Lbs Lbs Sodium Carbonate 1742 Warehouse #2. Pails 50 0 0 No Lbs Lbs Lbs Sodium Hydroxide (10%) 206 11 Inside auxiliary bldg (caustic standpipe - unit 1). AST 2700 2700 2600 Not an EHS. Approx. 8.3 lb/gal. Gallons Gallons Gallons Yes Sodium Hydroxide (10%) 207 21 Inside auxiliary bldg (caustic standpipe - unit 2) AST 2700 2700 2600 Yes Gallons Gallons Gallons Sodium Hydroxide (10%) .2274 Warehouse #2. Drums 55 55 55Yes Gallons Gallons Gallons Sodium Hydroxide (Flakes) 1434 Warehouse #2 Drums 187 374 374Yes Lbs Lbs Lbs Sodium Hypochlorite (15%) 215 121 Inside chlorine bldg (bulk sodium hypochlorite AST 1273 1273 600 tank) No EHSs. Liquid is 10.0 lb/gal. Gallons Gallons Gallons Yes Sodium Hypochlorite (15%) 966 122 Inside chlorine building (bulk sodium hypochlorite AST 1273 1273 600 tank). No EHSs. Liquid is 10.0 lb/gal. Gallons Gallons Gallons Yes Sodium Sulfite 1332 Storage area outside Cold Lab. Not EHS or TRI. Pails 100 200 100 21.6 lb/gal. Bleach used for spill clean-up. Lbs Lbs Lbs No Stoddard Solvent 563 Warehouse #3, 695' level, truck isle. No EHS. 6.5 Barrels 55 0 0 lb/gal Gallons Gallons Gallons No Sulfur Hexaflouride 841 Substation bldg. Several small cylinders. Not an Cylinders 480 480 360 EHS. Lbs Lbs Lbs No 274 of 401
2/10/2008 01 EPCRA SECION 312 (TIER II) EPA Reporting Year: 2007 HAZARDOUS SUBSTANCE INVENTORY REPORT Plant: PrairieIsland GeneratingPlant Contact Person: Joan Neubauer Work Phone: (651) 388-1121 Alternate Contact: Jeanne Tobias W6rk Phone: (651) 388-1121 ERC /D#: 25-150-0001 24 hr #: (651) 388-5577 Maximum Xcel Site Container Amount Average Amount Reportable Substance Record # Tank # Storage Location Storage Method Capacity On-Site On-Site in 2007? Zep Dyna 143 1655 Warehouse #3 and in two parts washers. Installed Drums 20 120 80 No late in 1998. 6.5 lb/gal. No EHSs. Gallons Gallons Gallons This report was used as the basis for your facility's EPCRA Section 312 hazardous substance inventory (TIER II) submittal in 2008. Please keep this report in your EPCRA 312 file for at least 5 years. If there are any questions, contact Jayshree Desai in ERAD at 612-337-2243. 275 of 401
8/25/2008 EPCRA SECTION 312 (TIER II) EPA Reporting Year: 2006 HAZARDOUS SUBSTANCE INVENTORY REPORT Plant: PrairieIsland GeneratingPlant Contact Person: Joan Neubauer Work Phone: (651) 388-1121 Alternate Contact: Jeanne Tobias Work Phone: (651) 388-1121 ERC lD#: 25-150-0001 24 hr #: (651) 388-5577 Maximum Xcel Site Container Amount Average Amount Reportable Substance Record # Tank # Storage Location Storage Method Capacity On-Site On-Site in 2006? Acetone 561 Warehouse #3, Drums 55 165 110 No Gallons Gallons Gallons Acetone 3670 695 Truck Aisle, No EHS Drums 55 55 55 Gallons Gallons No Gallons Alcohol Milsolve 562 Warehouse #3 Barrels 55 55 55No Gallons Gallons Gallons Alcohol Mtlsolve 3671 695 Truck Aisle Drums 55 110 55 Gallons Gallons Gallons Alumina Desslcant 2522 Warehouse#1. For air dryer Drums 55 110 110 Gallons Gallons Gallons Ammonium Hydroxide (28%) 1717 Outside Cold Lab. Not an EHS. Liquid is 7.5 PaIls 5 10 Liters 5 Liters oters lb/gal. Approx. 28% -30% NH3. Batteries -Lead &Lead 2065 Various areas (warehouse #1 and #8, Turbine and Battery. 46,200 46,200 Compounds in Lead-Acd Service Bldg., battery room etc.) Approx. 10.6 lb Yes of Pbl Ib of acid. 10.6 x 4360 lb of acid = 46.200 Lbs Lbs Lbs Batteries, Sulfuric Acid in Lead 1744 Various areas (warehouse #1 and #8, Turbine and Battery 4360 4360 Add Batteries Service Bldg., battery room etc.) Total = approx. Yes 4360 lb of sulfuric add. Lbs Lbs Lbs Black Beauty Slag Products 2279 Outside palntshop -south side. Slag used for sand Bags 50 32,000 20,000 yes blasting. Lbs Lbs Lbs Boric Add (0 - 2%) 553 Reactor'coolant system Flow Through Process 14000 14,000 7,000 Tank Lbs Lbs Lbs Boric Add (0 - 2%) Solid 550 Above Laundry area -755' level, Decon Bags so 38,000 38,000 Warehouse #2 and #3. Lbs Lbs Lbss Boric Add (12%) 554 735' auxiliary bldg (121 boric acid batching tank) Flow Through Process 800 800 800 Tank Gallons Gallons Gallons Boric Add (12%) 940 735' auxiliary building (11 boric add storage tank) Flow Through Process 5000 5000 5000 Tank Gallons Gallons Gallons Boric Add (12%) 941 735' auxiliary building (121 boric acid storage Flow Through Process 5000 5000 5000 tank) density =12.3 lb/gal Tank Gallons Gallons GallonsYes I of 12
8/25/2008 EPCRA SECTION 312 (TIER I!) EPA Reporting Year: 2006 HAZARDOUS SUBSTANCE INVENTORY REPORT Plant: PrairieIsland GeneratingPlant Contact Person: Joan Neubauer Work Phone: (651) 388-1121 Alternate Contact: Jeanne Tobias Work Phone: (651) 388-1121 ERC ID#: 25-150-0001 24 hr#: (651) 388-5577 Maximum Xcel Site Container Amount Average Amount Reportable Substance Record # Tank # Storage Location Storage Method Capacity On-Site On-Site In 2006? Boric Add (12%) 942 735' auxiliary building (21 borIc acid storage tank) Flow Through Process 5000 5000 5000 Tank Gallons Gallons Gallons Boric Add (6%) 552 Spent fuel pool and refueling storage tank Other 50000 50000 50000 Yes Lbs Lbs Lbs Brine, R.0. 1965 Indoor, West of water treatment (flow trough AST 10000 10,000 10,000 No process tank). No EHS. Assumed water density 8.4 Ibloal. Brine concentration In R. 0. water 26% Gallons Gallons Gallons Carbon Dioxide, Gas 1053 Gas House Cylinders 60 3000 3000 Yes Lbs Lbs Lbs Carbon Dioxide, Liquid 1052 Turbine bldg Tank 12000 12,000 12,000 Yes Lbs Lbs Lbs Coke, Metallurgical 2369 Bone Yard. Used in turbine bldg sumps to absorb Drums 65,000 30,000 oil. (Note: inventory should include installed coke Lb0 LbssYes
+ ant on-site in drums + amt on-site awaitino Lbs Lbs Lbs Diesel Fuel 2015 Tank farm, north of plant near #5 warehouse. AST 550 500 250 Yes Gallons Gallons Gallons Diesel Fuel #2 194 194 Inside bulding east of guard house (day tank for AST 500 500 500 security diesel) Gallons Gallons Gallons Yes Diesel Fuel #2 195 195 Plant screenhouse (#12 diesel cooling water AST 580 575 575 pump day tank) Gallons Gallons Gallons Yes Diesel Fuel #2 196 196 Plant screenhouse (# 22 diesel cooling water AST 580 575 575 pump day tank) Gallons Gallons Gallons Yes Diesel Fuel #2 197 197 Turbine Bldg. DI diesel generator fuel oil day tank AST 500 500 500 Gallons Gallons Gallons Yes I
Diesel Fuel #2 198 198 Turbine bldg (D2 diesel generator fuel oil day tank) AST 500 500 500 Yes Gallons Gallons Gallons Diesel Fuel #2 199 199 Plant screenhouse (fire pump diesel oil day tank) AST 280 200 200 Gallons Gallons Gallons Diesel Fuel #2 200 200 D3 Diesel Generator Day Tank AST 125 125 100 Yes Gallons Gallons Gallons 2 of 12 0
8/25/2008 EPCRA SECTION 312 (TIER II) EPA Reporting Year: 2006 HAZARDOUS SUBSTANCE INVENTORY REPORT Plant: PrairieIsland GeneratingPlant Contact Person: Joan Neubauer Work Phone: (651) 388-1121 Alternate Contact: Jeanne Tobias Work Phone: (651) 388-1121 ERC ID#: 25-150-0001 24 hr #: (651) 388-5577 Maximum Xcel Site Container Amount Average Amount Reportable Substance Record # Tank # Storage Location Storage Method Capacity On-Site On-Site In 2006? Diesel Fuel #2 201 201 D4 Diesel Generator Day Tank AST 125 125 100 Yes Gallons Gallons Gallons Diesel Fuel #2 210 210 D5/D6 Fuel Oil Receipt Tank, outside near SBO Bldg. AST 15000 15000 1000 Yes Bldg. Gallons Gallons Gallons Diesel Fuel #2 211 211 D5/D6 Fuel ON1 Storage Tank - Vault AST 32778 32778 32700 Yes Gallons Gallons Gallons Diesel Fuel #2 212 212 DSD8 22 Fuel Oil Storage Tank -Vault AST 32778 32778 32700 Yes Gallons Gallons Gallons Diesel Fuel #2 213 213 D5fD6 23 Fuel Oil Storage Tank Vault AST 32778 32778 32700 Gallons Gallons Gallons Diesel Fuel #2 214 214 D5/D6 24 Fuel OR Storage Tank-Vault AST 32778 32778 32700 Yes I Gallons Gallons Gallons Diesel Fuel #2 218 218 SBO Bldg. 21 Day Tank for D5 Diesel Generator AST 665 665 640 Gallons Gallons Gallons Diesel Fuel #2 219 219 SBO Bldg. 22 Day Tank for D6 Diesel Generator AST 665 665 640 Yes Gallons Gallons Gallons Diesel Fuel #2 459 121 Plant Screenhouse (diesel fire pump oil storage UST U 4000 4000 3000 tank) Gallons Gallons Gallons Diesel Fuel #2 460 124 North of Heated Hazwaste building (124 diesel UST 19500 19500 19500 generator oil storage tank) Gallons Gallons Gallons Yes Diesel Fuel #2 461 123 North of Heated Hazwaste building (123 diesel UST 19500 19500 19500 generator oil storage tank) Gallons Gallons Gallons Yes Diesel Fuel #2 462 122 North of Heated Hazwaste building (122 diesel UST 19500 19500 19500 generator oil storage tank) Gallons Gallons GallonsYes Diesel Fuel #2 463 121 North of Heated Harwaste generator oil storage tank) building (121 diesel UST 19500 Gallons 19500 Gallons 19500 Gallons Yes Diesel Fuel #2 464 122 East of turbine building (122 heating boiler oil UST 35000 35000 25000GY storage tank) Gallons Gallons Gallons Yes 3 of 12
8125/2008 EPCRA SECTION 312 (TIER I1) EPA Reporting Year: 2006 HAZARDOUS SUBSTANCE INVENTORY REPORT Plant: PrairieIsland GeneratingPlant Contact Person: - Joan Neubauer Work Phone: (651) 388-1121 Alternate Contact: Jeanne Tobias Work Phone: (651) 388-1121 ERC ID#: 25-150-0001 24 hr#: (651) 388-5577 Maximum Xcel Site Container Amount Average Amount Reportable Substance Record # Tank # Storage Location Storage Method Capacity On-Site On-Site In 2006? Diesel Fuel #2 465 121 East of turbine bldg. (121 heating boiler oil UST 35000 35000 35000 Yes storage tank) Gallons Gallons Gallons Diesel Fuel #2 466 122 East of Plant Screenhouse (22 diesel cooling UST 19500 19500 19500 water pump oil storage tank) Gallons Gallons Gallons Diesel Fuel #2 467 121 East of Plant Screenhouse water pump oil storage tank)(12 diesel cooling UST 19500 Gallons 19500 Gallons 19500 Gallons Yes Ethylene Glycol (100%) 592 Warehouse #3. Not an EHS. 9.4 lb/gal Drums 55 850 550 *Yes Gallons Gallons Gallons Ethylene Glycol (50%) 593 D5 &D6 building system, not an EHS Other 5000 4800 4600 Yes Gallons Gallons Gallons Ethylene Glycol (50%) 594 Aux bldg, Turbine bldg, Admin Heating Other 3500 3000 1400 system,computer room chiller Gallons Gallons Gallons Formaldehyde various grades 1740 Formaldehyde various grades at P1environmental Pails 5 11 10 (5%, 10% &371/%) Laboratory Gallons Gallons Gallons No Freon 11 1048 Not an EHS. NOT REPORTABLE in 2007. Drums 200 200 200 No Lbs Lbs Lbs Freon 113 3672 Warehouse #3, No EHS, Pails 15 30 30 No Gallons Gallons Gallons Freon 22 1050 Warehouse #3, (no EHSs) (9.9 lb/gal) Cylinders 20 - 100 100 No Lbs Lbs Lbs Gasoline 2014 2014 Tank farm north of plant near #5 Warehouse. AST 550. 500 250 No Gallons Gallons Gallons Halon 1301 1046 Various fire suppression areas; various sizes Cylinders 3731 3731 No Lbs Lbs Lbs Hydrazlne (1-5%) 3676 Chem Feed UI and U2 Process piping 175 Piping 175 350 350 gallons each, EHS yes, 8.5 lb/gal Gallons Gallons Gallons Yes Hydrazlne (35%) 557 Decon Warehousd--duplicate removed per Joan Drums 30 300 200 N.on 1/111108. N.o / f0.I GYes Gallons F Gallons Gallons 4 of 12
8/25/2008 EPCRA SECTION 312 (TIER II) EPA Reporting Year: 2006 HAZARDOUS SUBSTANCE INVENTORY REPORT Plant: PrairieIsland GeneratingPlant Contact Person: Joan Neubauer Work Phone: (651) 388-1121 Alternate Contact: Jeanne Tobias Work Phone: (651) 388-1121 ERC ID#: 25-150-0001 24 hr#: (651) 388-5577 Maximum Xcel Site Container Amount Average Amount Reportable Substance Record # Tank # Storage Location Storage Method Capacity On-Site On-Site In 2006? Hydrazine (35%) 558 3 Outside cold lab. EHS. Liquid = 8.5 Ib/gal, Unit 1 Drums 30 120 60 Turbine Bldg. 695 Gallons Gallons Gallons Hydrazine 35% Scavox 3675 Decon Warehouse #2, EHS, 8.5 Ib/gal Drums 30 6600 3300 Yes Gallons Gallons Gallons Hydrochloric Acid 837 Chem Storage Room, cold lab 695'; hot lab Glass Bottles 0.5 4 2 (exempt), removed per Joan N.1/10/08. Gallons Gallons Gallons No Hydrogen Gas 1054 Hydrogen gas house (I lb/ 194 ft3) Cylinders 261 13050 13050 No Cubic Feet Cubic Feet Cubic Feet Isothlazolin, GE Betz Spectrus 1962 Chem Storage Room, no EHS, 11.62 lb/gal. Pails 5 5 5 1106 . Gallons Gallons Gallons Kerosene 781 Warehouse #3, 6.9 Ib/gal. Not an EHS. Pails 5 50 40 No Gallons Gallons Gallons Kerosene '1718 Warehouse #3, 6.9 lb/gal. Not an EHS. Drums 55 220 110 No Gallons Gallons Gallons Molluscide CL-2005, Chemtreat, 3685 This product was at the site for 3 days In 4 drums Drums . 55 220 0 ZM Molluscide and 4 totes. Gallons Gallons Gallons No Molluscide CL-2005, Chemtreat, 3702 This product was at the site for 3 days in 4 drums Tote Tank 400 1600 0 ZM Molluscide and 4 totes. Yes Gallons Gallons Gallons Molybdate Corrosion InhlbltorGE 2914 Unit 2 Turbine Bldg. 715", Decon Warehouse #3 Drums 55 385 385 Betz MD 4106 by 2X system. Gallons Gallons Gallons No Nalco 1250, Carbohydrazide 1251 Storage area outside of Cold Lab 695'. No EHSs. Drums 55 110 55 8.7 lb/gal. Gallons Gallons' Gallons No Nalco 1318, Sodium Bromide 967 121 Inside No EHSs.chlorine building. 12.2 Ibigal. NaBr = 40%. AST 1273 Gallons 1273 Gallons 500 Gallons Yes Nalco 1336 (Sodium Tolyltrlazol) 2915 Chem Storage Room. Pails 5 10 5No Gallons Gallons Gallons Nalco 39M Corrosion Inhibitor, 1433 Chem Storage Room, No EHSs present. 9.5 Pails 5 55 30 Nitrite Based lb/gal. Gallons Gallons Gallons No 5 of 12
8/25/2008 EPCRA SECTION 312 (TIER II) EPA Reporting Year: 2006 HAZARDOUS SUBSTANCE INVENTORY REPORT Plant: PrairieIsland GeneratingPlant Contact Person: Joan Neubauer Work Phone: (651) 388-1121 Alternate Contact: Jeanne Tobias Work Phone: (651) 388-1121 ERC ID#: 25-150-0001 24 hr #: (651) 388-5577 Maximum Xcel Site Container Amount Average Amount Reportable Substance Record # Tank # Storage Location Storage Method Capacity On-Site On-Site in 2006? Nalco 39M Corrosslon Inhibitor, 3677 Oil Room in Turbine Bldg. Drums 55 55 55 Nitrite Based Gallons Gallons Gallons No Nalco 7338 (Biacide) 833 Chem Storage Room, No EHSs (9.3 Ib/gal) Pails 5 10 10 No Gallons Gallons Gallons Nalco 8103 Coagulant 2917 Chem Storage Room, No EHS, 9.1 lbs/gal Pails 5 10 5 No Gallons Gallons Gallons Nalco 8320 (300 ppm Sodium 2016 This tank Is actualy a "holding" tank for when AST 500 500 150 Chromate) maintenance Isperformed on the emergency No diesel. No EHSs oresent. Aoorox. 8.3 lb/oal This Gallons Gallons Gallons Nalco 8320, Sodium Chromate 910 Warehouse #2, Pure prodct. No EHSs. 14.2 Drums 30 30 30 lb/gal. Gallons Gallons Gallons No Nalco 8338 (Nitrite Based 2916 Chem Storage Room, Pails 5 15 15 corrosion Inhlbltor" Gallons Gallons Gallons NalobGlutablehyde, GE Betz 2156 Chem Storage Room, Not EHS Pails 5 10 5 Spectrus NX 1105 Gallons Gallons Gallons No NalooPre-tect 2040 HP (MPA) 1044 Warehouse #2, No EHSs present. 8.1 lb/gal. Drums 55 4050 2035 No Gallons Gallons Gallons Nalbo Pre-tect 2040 HP (MPA) 3673 Chem Feed fume hood both units Drums 55 110 110 No Gallons Gallons Gallons Nalco Pre-tect 2040 HP (MPA) 3674 Cold Lab storage area, No EHS Drums 55 110 110N 5511 110No Gallons Gallons Gallons Nitrogen, Liquid 555 East of turbine building Tank 1500 1500 1500
-- Yes Gallons Gallons Gallons Nitrogen, Liquid 556 East of turbine building Tank 1500 1500 1500Yes Gallons Gallons Gallons Oil Mobil SHC 525 3689 Warehouse #3 Drums 55 55 5Y Gallons Gallons Gallons Oil Mobil, Voetra Oil #2 3684 OllRoom inTurbine Bldg. Drums 55 55 55Yes Gallons Gallons Gallons 6 of 12 0
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8/25/2008 EPCRA SECTION 312 (TIER II) EPA Reporting Year: 2006 HAZARDOUS SUBSTANCE INVENTORY REPORT Plant: PrairieIsland GeneratingPlant ContactPerson: Joan Neubauer Work Phone: (651) 388-1121 Alternate Contact: Jeanne Tobias Work Phone: (651) 388-1121 ERC D#: 25-150-0001 24 hr#: (651) 388-5577 Maximum Xcel Site Container Amount Average Amount Reportable Substance Record # Tank # Storage Location Storage Method Capacity On-Site On-Site In 2006? Oil SAE 15W-40W Soot Control 3682 Warehouse #3 Drums 55 2035 2035 Gallons Gallons Gallons Oil, Caltran Transformer 3680 Warehouse #3 Drums 55 55 55
- Gallons Gallons Gallons Oil, Delvac 1330 3683 Warehouse #3 Drums 55 100 55 Yes Gallons Gallons Gallons Oil, Delvac 1630 2967 Oil Room in Turbine Bldg. AST 100 100 55 Gallons Gallons Gallons Oil, Diesel Lube 572 Plant Screenhouse (#12 diesel cooling water Flow Through Process 110 110 100 pump crankcase) Tank Gallons Gallons Gallons Yes Oil, Diesel Lube 573 Plant Screenhouse (#22 diesel cooling water Flow Through Process 110 110 100 pump crankcase) Tank Gallons Gallons Gallons Yes Oil, Diesel Lube 576 Turbine building (DI diesel generator crankcase) Flow Through Process Tank 250 250 -- 150 Yes Gallons Gallons Gallons Oil, Diesel Lube 577 Turbine building (D2 diesel generator crankcase) Flow Through Process 250 250 150 Tank Gallons Gallons Gallons Oil, Diesel Lube 579 D3 building south of reactor (03 diesel generator Flow Through Process 250 250 150 crankcase). East of Turbine Bldg. Tank Gallons Gallons Gallons Yes Oil, Diesel Lube 580 D4 building south of reactor (04 diesel generator Flow Through Process 250 250 I 150 crankcase). East of Turbine Bldg. Tank Gallons Gallons Gallons Yes Oil, DTE 24 2966 Oil Room In Turbine Bldg. AST 100 100 55Yes Gallons Gallons Gallons Oil, DTE 25 2968 Oil Room in Turbine Bldg. AST 100 100 55Yes Gallons Gallons Gallons Oil, DTE 25 3701 Warehouse #3 Drums 55 55 55 Gallons Gallons Gallons Oil, DTE Oil BB SAE 40 2957 Oil Room In Turbine Bldg. AST 100 100 55Yes Ganons Gallons Gallons 7 of 12 0
8/25/2008 EPCRA SECTION 312 (TIER II) EPA Reporting Year: 2006 HAZARDOUS SUBSTANCE INVENTORY REPORT Plant: PrairieIsland GeneratingPlant Contact Person: Joan Neubauer Work Phone: (651) 388-1121 Alternate Contact: Jeanne Tobias Work Phone: (651) 388-1121 ERC ID#: 25-150-0001 24 hr #: (651) 388-5577 Maximum Xcel Site Container Amount Average Amount Reportable Substance Record # Tank # Storage Location Storage Method Capacity On-Site On-Site in 2006? Oil, DTE Oil BB SAE 40 1 3694 Warehouse #3 Drums 55 330 330 Yes Gallons Gallons Gallons Oil, DTE Oil Extra Heavy SAE 30 2960 Oil Room InTurbine Bldg. AST 100 100 55Yes Gallons Gallons Gallons Oil, DTE Oil Extra Heavy SAE 30 3695 Warehouse #3 Drums 55 495 495Yes Gallons Gallons Gallons Oil, DTE Oil Heavy 2961 Oil Room InTurbine Bldg. AST 100 100 55 Yes Gallons Gallons Gallons Oil, OTE Oil Heavy 3696 Warehouse #3 Drums 55 330 330 Yes Gallons Gallons Gallons Oil, DTE Oil Heavy Medium SAE 3697 Warehouse #3 Drums 55 165 165 Yes 20 Gallons Gallons Gallons Oil, OTE Oil Heavy Medium SAE 3698 Oil Room inTurbine Bldg. Drums 55 55 55YeS 20 Gallons Gallons Gallons OIl, OTE Ol Heavy Medium SAE 3699 OIlRoom InTurbine Bldg. Tank 100 100 55 20 Gallons Gallons Gallons Yes Oil, DTE Oil Light SAE 10 3700 Warehouse #3 Drums 55 275 275 Yes Gallons Gallons Gallons Oil, OTE Oil Medium 2963 Oil Room InTurbine Bldg. AST 100 100 55Yes Gallons Gallons Gallons Oil, DTE Oil, SAE10 2964 Oil Room InTurbine Unit1 Bldg. AST 100 100 55Yes Gallons Gallons Gallons Oil, Duragard Super HD 15W-40 2956 Oil Room InTurbine Bldg AST 100 100 55Yes Gallons Gallons Gallons Ol, EHC 3681 Warehouse #3,No EHS Drums 55 275 275 Yes Gallons Gallons Gallons Oil, Fryquel EHC Hydraulic Fluid 1336 Oil Room inTurbine Bldg. Not an EHS. (9.5 lb/gal) Drums 55 Gallons 110 Gallons 55Yes Gallons 8 of 12 0 0.
8125/2008 EPCRA SECTION 312 (TIER II) EPA Reporting Year: 2006 HAZARDOUS SUBSTANCE INVENTORY REPORT Plant: PrairieIsland GeneratingPlant Contact Person: Joan Neubauer Work Phone: (651) 388-1121 Alternate Contact: Jeanne Tobias Work Phone: (651) 388-1121 ERC ID#: 25-150-0001 24 hr #: (651) 388-5577 Maximum Xcel Site Container Amount Average Amount Reportable Substance Record # Tank # Storage Location Storage Method Capacity On-Site On-Site In 2006? OI1,Gargoyle, SHC 224 3678 Oil Room InTurbine Bldg. Drums 55 55 55Yes Gallons Gallons Gallons Oil, Lube 220 SBO Building (lube oil storage tank). Actual AST 850 850 800 product Is Shell Rotella T Multilube Oil: 7.3 IbIgal Gallons Gallons GallonsYes and no EHSs or reoortable TRIs. GallonsGallonsGallon Ol, Lube 221 22 SBO Building (lube oil storage tank). Actual AST 850 850 800 product Is Shell Rotatle T Multilube Oil: 7.3 lb/gal Gallons Gallons GalonsYes and no EHSs or recortable TRIs. Ga__onsGalonsGallons OIl, Mobil 450 NC 3686 warehouse #3 Drums 55 1265 1265 Yes Gallons Gallons Gallons OIl, Mobil 450 NC 3687 Oil Room In Turbine Bldg. Drums 55 55 55 Yes Gallons Gallons Gallons Oil, Mobil Gard 629 2958 Oil Room In Turbine Bldg. AST 100 100 55Yes Gallons Gallons Gallons OR,Mobil Gard 629 3690 Warehouse #3 Drums 55 440 440 Yes Gallons Gallons Gallons Oil, Mobil Rarus 827 2965 Oil Room In Turbine Bldg. 695' Oil Is filtered AST - 100 100 55 Yes Gallons Gallons Gallons Oil, Mobil SHC 525 3688 Oil Room In Turbine Bldg. Drums 55 55 Yes Gallons Gallons Gallons Oil, Mobil SHC 630 1746, Oil Room In Turbine Bldg. AST 100 100 55Yes Gallons Gallons Gallons Oil, Mobil SHC 630 3691 Oil Room In Turbine Bldg. Drums 55 55 55 Gallons Gallons Gallons OIl, Mobil SHC 824 3692 Warehouse #3 Drums 55 1045 1045 Gallons Gallons Gallons Oil, Mobil -SHC 824 3693 Oil Room InTurbine Bldg. Drums 55 110 55 _ _Gallons Gallons Gallons Yes Oil, Mobil SHC-525 2970 Oil Room inTurbine Bldg. AST 100 100 55 Yes Gallons Gallons Gallons 9 of 12 10--- --
8/25/2008 EPCRA SECTION 312 (TIER 11) EPA Reporting Year: 2006 HAZARDOUS SUBSTANCE INVENTORY REPORT Plant: PrairieIsland GeneratingPlant Contact Person: Joan Neubauer Work Phone: (651) 388-1121 Alternate Contact: Jeanne Tobias Work Phone: (651) 388-1121 ERG/ID#: 25-150-0001 24 hr#: (651) 388-5577 Maximum Xcel Site Container Amount Average Amount Reportable Substance Record # Tank 8 Storage Location Storage Method Capacity On-Site On-Site In 2006? Oil, Mobil SHC-632 2969 Oil Room In Turbine Bldg. AST 100 100 55 Gallons Gallons Gallons Oil, Mobile SHC 630 2955 Oil Room inTurbine Big 695'. Oil is filtered. AST 100 100 55 Gallons Gallons Gallons Oil, Mobilgard 450 NC 2959 Oil Room Turbine Bldg. AST 100 55 55Yes Gallons Gallons Gallons Oil, Stoage Tank, Turbine Lube Oil 584 584 Oil Room In Turbine Bldg. AST 14000 14000 10000 1-2 Gallons Gallons Gallons Yes Oil, Turbine Lube 586 11 Turbine building (#1 turbine generator oil sump/rese*ior) Flow Tank Through Process 14000 Gallons 14000 Gallons 13000 Gallons Yes Oil, Turbine Lube 587 21 Turbine building (#2 turbine generator oil Flow Through Process 14000 14000 13000 sumpfreservolr) Tank Gallons Gallons Gallons Oil, Turbine Lube (Make Up Tank) 585 585 Oil Room in Turbine Bldg. AST 2000 2000 1500 Yes Gallons Gallons Gallons Oil, Used 202 202 Outside west of plant (Used Oil Tank). AST 5000 3500 1500 Gallons Gallons Gallons Oil, Used 203 203 Outside west of plant (Used Oil Tank). AST 5000 3500 1500 Yes Gallons Gallons Gallons 011, Used 217 217 Oil Room Turbine Bldg. AST 250 250 150 Yes Gallons Gallons Gallons OIl, Whlterex 425 3679 Oil Room inTurbine Bldg. Drums 55 55 55 Yes Gallons Gallons Gallons Oxygen, Liquid 1056 Turbine bldg Dewars 25 50 35 Gallons Gallons Gallons Propane 588 West of plant Tank 1000 900 800 Gallons Gallons Gallons Propane 589 West of plant. Used for NPD heat. No EHSs Tank 1000 900 800 present. 4.2 fb/gal. Gallons Gallons Gallons Yes 10 of 12
8/25/2008 EPCRA SECTION 312 (TIER II) EPA Reporting Year: 2006 HAZARDOUS SUBSTANCE INVENTORY REPORT Plant: PrairieIsland GeneratingPlant Contact Person: Joan Neubauer Work Phone: (651) 388-1121 Alternate Contact: Jeanne Tobias Work Phone: (651) 388-1121 ERC ID#: 25-150-0001 24 hr#: (651) 388-5577 Maximum Xcel Site Container Amount Average Amount Reportable Substance Record # Tank # Storage Location Storage Method Capacity On-Site On-Site In 2008? Propane 590 West of plant, Used for NPD Bldg. heat. Tank 1000 900 800 Yes Gallons Gallons Gallons Propane 1657 Met tower bldg Tank 250 250 250 Yes Gallons Gallons Gallons Resin, Ambertite IRN-217, Rohm 3703 Decon Warehouse #2. Palls i38 71 36 and Haas Lbs Lbs Lbs No Resin, Clinophthilonite, Fisher- 3706 Decon Warehouse #2. Pails, 1 21 21 No Cubic Feet Cubic Feet Cubic Feet Resin, PD-11-NH4, Eplcor 3704 Decon Warehouse #2 Pails 28 40 40 No Lbs Lbs Lbs Resins, Demineralizer 1327 Various Locations (Installed and in stock). Fiber Drums &Row Thru 37000 37000 Includes: Eplcor anion, cation and mixed bed Process Tanks Yes resins. No EHSs. 10.0 lb/cal Lbs __Lbs Lbs Resins, PD-32-NH4, Eplcor 3705 Deoen Warehouse #2. Pails 28 100 100 No Lbs Lbs Lbs Salt (Sodium Chloride) 2296 Training center and various plant areas and Bags 50 2000 2000 turbine bldg. No EHSs present. Lbs Lbs Lbs No Sodium Bisulfate 1743 Warehouse #2, Not an EHS.Water Treatment Drums 100 100 100 Cleaning Lbs Lbs Lbs Sodium Carbonate 1742 Warehouse #2. Palls so 50 50No Lbs Lbs Lbs Sodium Hydroxide (10%) 206 11 Inside auxiliary bldg (caustic standpipe - unit 1). AST . 2700 2700 2600 Not an EHS. Approx. 8.3 lb/gal. Gallons Gallons Gallons Yes Sodium Hydroxide (10%) 207 21 Inside auxiliary bldg (caustic standpipe - unit 2) AST 2700 2700 2600 Yes Gallons Gallons Gallons Sodium Hydroxide (10%) 2274 Warehouse #2. Drums 55 55 55Yes Gallons Gallons Gallons Sodium Hypochlorite (15%) 215 121 Inside chlorine bldg (bulk sodium hypochlorite AST 1273 1273 600 tank) No EHSs. Liquid is 10.0 lb/gal. Gallons Gallons Gallons Yes 11 of 12 t
8/25/2008 EPCRA SECTION 312 (TIER II) EPA Reporting Year: 2006 HAZARDOUS SUBSTANCE INVENTORY REPORT Plant: PrairieIsland GeneratingPlant Contact Person: Joan Neubauer Work Phone: (651) 388-1121 Alternate Contact: Jeanne Tobias Work Phone: (651) 388-1121 ERC ID#: 25-150-0001 24 hr #: (651) 388-5577 Maximum Xcel Site Container Amount Average Amount Reportable Substance Record 9 Tank # Storage Location Storage Method Capacity On-Site On-Site In 2006? Sodium Hypochlolrte (15%) 966 122 Inside chlorine building (bulk sodium hypochlorite AST 1273 1273 600 tank). No EHSs. Uquid Is 10.0 lb/gal. Gallons Gallons Gallons Yes Sodium Sulfite 1332 Storage area outside Cold Lab. Not EHS or TRI. Pails 100 100 100 21.6 Ib/gal. Bleach used for spill clean-up. Lbs Lbs Lbs No Stoddard Solvent 563 Warehouse #3,695' level, truck Isle. No EHS. 6.5 Barrels 55 275 165 lb/gal Gallons Gallons Gallons No Sulfur Hexaflouride 841 Substation bldg. Several small cylinders. Not an Cylinders 480 480 360 EIEHS. Lbs Lbs Lbs No Zel) Dyna 143 1655 Warehouse #3 and in two parts washers. Installed Drums 20 220 110 late In 1998. 6.5 IbIgal. No EHSs. Gallons No Gallons Gallons Gallons Gallons This report was used as the basis for your facility's EPCRA Section 312 hazardous substance inventory (TIER II) submittal in 2008. Please keep this report in your EPCRA 312 file for at least 5 years. If there are any questions, contact Bruce Denney in ERAD at 612-337-2085.
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submi4kA 2.O~tp MINNESOTA EMERGENCY RESPONSE COMMISSION 444 CEDAR ST., SUITE 223, ST. PAUL, MN 55101. PHONE: (651) 297-7372. TTY (651) 282-6555 FAX (651) 296-0459 HAZARDOUS CHEMICAL REPORT MINNESOTA COMMUNITY RIGHT-TO-KNOW 40 CFR PART 370 SUBPART B A I Facility Identification (SECTION 311 REPORTING REQUIREMENT) ERC ID#12 15 1 1 51 I-- 0oo' I o 1SICCode 14 1 ' Facility Name: Prairie Island Nuclear Generating Plant Street Address: 1717 Wakonade Dr. : "::.:Mailing M A414 Address: Nicollet Mall (If different from Street Address) City, State, Zip Code: Welch, MN 55089 P.O. Box #: Ren Sq-8 County: Goodhue County City, State, Zip Code:yMinneapolis, MN 55402 Primary Contact: Jeanne Tobias Alternate Contact: Jeff LeClair Telephone: 6 5 1 -- 9 8 4 6 2 6l Tlephone: 6 51 -- 3 8 8 -- 1 1 2 1 B Accompanying Information 4-0 CFR part 370.21 requiresfacilities to provide either materialsafety data sheets (iVISDS's) or a list of chemical materials present at this facility in excess oftthe current "mininmnum threshold quantity" if you are requiredto prepareor maintain such MSDS's by 0SHAI.
- 1. Is this an initial submittal or an update? (Check one) 12. Are you submitting MSDS's or a list? (Check one)
(D Initial (E UpdateJ O MSDS C-- List 0A. Are any of these materials on the list of "Extremely Hazardous Substances" and present in excess of the "Threshold Planning Quantity" as defined in 40 CFR-Part 355, published in the Federal Register April 22, 1987? (Check one) (D Yes (9 No
- 4. Has a copy of the submittal been sent by you to your local fire 5. What is the name and address of your local Fire Department?
depatmet? one (hec Ye (Q o -Redwing Fire Dept. 420 Plum St. Redwing, MN 55066 C Recommended List Format I Computerprintoutsor typed lists are also acceptable. HAZARD CATEGORY COLUMN I COLUMN II (Check all that apply) Chemical or.Common Name Hazardous Components as provided on Cl) the MSDS 4-C-) Cl) 7; Ia I vi 11 l -1 Petroleum Asphalt:" 8052-42-4 Petroleum Asphalt (20-46%) . 7738-06-4 Traces of Hydrogen Slide -10 ppm 8052-41-3 Mineral Spirit - 100 ppm PS - 04000-03 (3/00) Continue list on back or additionalforms Page of
Online Tier II Manager Page 1 of 10 Tier II Emergency and Hazardous Chemical Inventory Reporting Period From January 2005 to December 2005 [...-Print Set page to landscape before printing Facility Identification Owner/Operator Name Name: XCEL ENERGY - PRAIRIE ISLAND PLANT Name: Xcel Energy Street: .1717 WAKONADE DRV E Phone: 6.12-337-2243 City: WELCH County: Goodhue Mail Address: 414 Nicollet Ave State: MN Zip: 55089 City: Minneapolis State: MN Phone: 6123372243 Lat/Long: 44.6279983520508/92.6579971313477 Zip: 55402 Country: United States Mailing Address if different from Facility ID Address Emergency Contact Name: XCEL ENERGY - PRAIRIE ISLAND PLANT Name: Jeanne Tobias Street: 41,1 NICOLLEF MALL (RS-8) Title: Env Contact -NMC PI PO Box: City: MINNEAPOLIS Phone: 651388.1.2 1.x1626 24 Hr. Phone: 651-998-4251. State: MN Zip: 554.01 Name: Jeff LeClair Attn: JAYSHREE DESAI Title: SIC Code: 4911 Dun & Brad Phone: 6513881121 24 Hr.Phone: No # NAICS: ERC ID Number 2.51 500001 Mixture Components are listed in the Appendix. .... ....... ... ..... __....._-___
.... ........
Physical and Health II Cheical Description Haad Inventory Storage Codes & Locations CAS: 7664-93-9 [OFire 04 Con. Press. Temp Storage Location Trade Secret: No L-pressure Max Daily Chem.Name: SULFURIC ACID Reactivity Code Type ES mImeatiity 04 E side of plant; Chemical EHS Name: IlIm mediate Ave. Daily C 1 4 storeroom; chemical labs; Check all that apply: rDelayed (Chronic) Amount Code LEAD ACID BATTERIES IRPure [i]Mix []Solid [X]Liquid []Gas IXEHS 365 E side of plant; chemical on M 1 4 storeroom; chemical labs; No. oLEAD ACID BATTERIES site - - - _______________ E side of plant; chemical R 1 4 storeroom; chemical labs; LEAD ACID BATTERIES __,,_011 Certification: I certify under penalty of law that I have personally examined and am familiar with the information submitted, and that based on my Optional Attachments inquiry of those individuals responsible for obtaining the inforiiation, I believe that the submitted information is true, accurate, and complete. Elsiteplan M'Site Coordinate Abbreviations iJayshree Desai , Env. Analyst 2/26/2006 9:23:22 AM MOther safeguard measures alitp://www.epcra.state. m. us/tier2manager/-naiager/Tici-2Foi-m-asp? T2Faci IItylD=3637&slD=224215466&FF=Y 0L/26/2006
Online Tier II Manager Page 2 of 10 Name and official title of owner/operator Date Signature or authorized representative: II lI ttp://www epcra.state.i-nn .Ls/tiei-2mianage-/i-nanaigei-/Tiei-2Foi-in asp)'ý2FacIIty.[D=3637&slD=2242 15466&FF,=Y 620
*26/2006
Online Tier II Manager Page 3 ot 10 Chemical Description ia and Health Inventory ]StorageCodes & Locations CAS: .68476-34-6 [KFire 06 Con. Press. Temp Storage. Location Trade Secret: No [LPressure Max Daily Chem.Name: DIESEL FUEL tt2 OReactivity Amount Code Type EHS Name: lVlImmediate 06 TANK FARM NEAR #5 Ave. Daily B 1 4 WAREHOUSE; INSIDE DIESEL Check all that apply: XDelayed (Chronic) Amount Code GENERATOR BLDGS; INSIDE
-]Pure [Mix D-Solid iNLiquid D*Gas E-EHS 365 1 SCREENHOUSE; ETC.
No. of days on TANK FARM NEAR #5 site C 1 4 WAREHOUSE; INSIDE DIESEL GENERATOR BLDGS; INSIDE SCREENHOUSE; ETC. TANK FARM NEAR #5 A 1 i4 WAREHOUSE; INSIDE DIESEL GENERATOR BLDGS; INSIDE SCREENHOUSE; ETC. TANK FARM NEAR #5 WAREHOUSE; INSIDE DIESEL C 1 4 GENERATOR BLDGS; INSIDE SCREENHOUSE; ETC, CAS: 10043-35-3 E]Fire 05 Con. Press.: Temp Storage Location Trade Secret:. No E-]Pressure Max Daily
- Chem.Name: BORIC ACID -IReactivity v~*urlme~ae05 Amount Code Type .
AUXILIARY BLDG-
-Hm Name:Ave. Daily CONTAINMENT BLDG EHSve
. Name: 1 4 AXLAYBD Check all that apply: [@Delayed (Chronic) Amount Code REFUELING POOL - LAUNDRY iXPure .XIMix IX]Solid NXiLiquid [-Gas E-]EHS 365 - AREA - #8 WAREHOUSE AUXILLARY BLDG -
No. o days1on CONTAINMENT BLDG - site J 1 4 REFUELING POOL - LAUNDRY AREA - #8 WAREHOUSE AUXILLARY BLDG - CONTAINMENT BLDG - C 1 14 REFUELING POOL - LAUNDRY AREA - #8 WAREHOUSE AUXILLARY BLDG - CONTAINMENT BLDG - REFUELING POOL - LAUNDRY AREA - #8 WAREHOUSE 1)ttp://ww\v'w.epcr-a.state.M1.LIns/tier2iianager/inanagei-/Tier2F*or-n.aspo2FaciiItyID=3637&sID=-224215466&FF=Y 0/26/2006
Online Tier II Manager Page 4 of 10 CAS: 131.0-73-2 -Fire 05 Con. Press. Temp Storage Location Trade Secret: No -Pressure Max Daily Amount Code Type Chem.Name: SODIUM HYDROXIDE 50% DReactivity 04 INSIDE AUXILLARY BLDG; EHS Name: *ZlImmediate Ave. Daily C 1 4 INSIDE UNIT 1 AND 2 Check all that apply: XIXDelayed (Chronic) Amount Code STANDPIPES I-Pure 9XMix --Soiid 1I]Liquid [--Gas E[EHS 365 INSIDE AUXILLARY BLDG; C 1 4 INSIDE UNIT 1 AND 2 No.- of days on STANDPIPES site INSIDE AUXILLARY BLDG; C 1 4 INSIDE UNIT 1 AND 2 STANDPIPES INSIDE AUXILLARY BLDG; D 1 4 INSIDE UNIT 1 AND 2 1 ISTANDPIPES CAS: 302-01-2 E]Fire 03 Con. Press. Temp Storage Location Trade Secret: No L-pressure Max Daily Chem.Name: HYDRAZINE 359/ IXReactivity Amount Code Type a03 warehouse #2; outside cold EHS Name: ImmedateAve. Daily E 1 chemical laboratory Check all that apply: rIDelayed (Chronic) Amount Code E 1. o side..... a 4 Warehouse.#2; outside cold
-- Pure [9]Mix EZSolid [XLiquid [Gas ]EHS 365 chemical laboratory No. of days on site http://www.epcra.state.min.usltier2manager/manager-Tier2For-m.asp 2FacilityID=3637&sID=224215466&FF=Y 926/2006
Online Tier II Manager Page 5 of 10 Chemical Description Hazards and Health JInventory Storage Codes & Locations CAS: 7727-37-9 E]Fire 04 Con. Press. Temp Storage Location Trade Secret: No ]Pressure Max -Daily Chem.Name: NITROGEN, REFRIGERATED IjReactivity Amount Code Type LIQUID [NImmediate 04 L 2 4 EAST OF TURBINE BLDG EHS Name: Nae:lDelayed (Chronic) Ave. Daily Amount Code A - 2 - 7 EAST OF TURBINE BLDG
"
365 Check all that apply: IZlPure E]Mix []Solid ILiquid IX]Gas EIEHS No. of days on site CAS: 7439-92-I -F]Fire 04 Con. Press. Temp Storage Location Trade Secret: No ]Pressure Max Daily Chem.Name: LEAD AND LEAD COMPOUNDS ]Reactivity Amount Code Type EHS Name: [*Immediate 04 R 1 4 LEAD-ACID BATTERIES IN "m eAve. Daily 1 PLANT AND SUBSTATION Check all that apply: ]Delayed (Chronic) Amount Code INiPure NMix ]Solid []Liquid E]Gas [*EHS 365 No. of days on site CAS: 7439-92-1 XI]Fire 0S Con. Press. Temp Storage Location Trade Secret: No --pressure Max Daily Chem.Name: OIL, LUBE E]Reactivity Amount Code Type EHS Name: []Immediate05 OIL STORAGE ROOMS; Ave. Daily A i 4 TURBINE BLDG; DIESEL Check~all that apply: .. Delayed (Chronic) Amount Code GENERATOR: BLDGS;
]Pure [OMix [Solid POLiquid E]Gas --EHS 365 SCREENHOUSE No. of days on OIL STORAGE ROOMS; site CTURBINE BLDG; DIESEL GENERATOR BLDGS; SCREENHOUSE OIL STORAGE ROOMS; D 4 TURBINE BLDG; DIESEL GENERATOR BLDGS; SCREENHOUSE Oil- STORAGE ROOMS; TURBINE BLDG; DIESEL GENERATOR BLDGS; SCREENHOUSE littp ://www.epcra.state.nn.Li .2managet/mianiaage.r/Tie2otrrn mn ri/"errna
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Online Tier II Manager Page 6 of 1.0 CAS: 7647-1.5--6 ElFire 04 Con, Press. Temp Storage Location. Trade Secret: No ElPressure Max Daily Chem.Name: NALCO 1.31.8 LIQUID EIReactivity Amount Code Type ____ __ _ EHS Name: IX]mmediate 03 rC 1 14 CHLORINE HOUSE Ave. Daily Check all that apply: ElDelayed (Chronic) Amount Code ElPure IX"Mix []Solid ]Liquid []Gas E]EHS 365 No. of days on site l~~ttp://vx'ww~~epcra~state. inU/iemale/nalg/Tl:Fr isp?T2FaCi IityJD--:3637&sJD=2242 I 5466&-F=P96/00 0/26/2006
Online Tier II Manager Page 7 of 10 C1iemical Descriptionar Physical and Health if Inventory Storage Codes & Locations CAS: 7681529 []Fire 04 Con. Press. Temp Storage Location Trade Secret: No E--Pressure Max Daily E-Reactivity Amount Code Type Chem.Name: SODIUM HYPOCHLORITE SOLUTION ]immediate 04 C 1 4 CHLORINE BUILDING EHS Name: EHS Nme:E[Delayed (Chronic) Ave. Daily Amount Code C 1 4 CHLORINE BUILDING Check all that apply: Amount Code
-]Gas E]EHS 365 EIPure XMix []Solid ELiquid No, of days on site CAS: 74-98-6 N]Fire 04 Con. Press. Temp Storage Location Trade Secret: No INipressure Max Daily PROPANE (LIQUIFIED LIReactivity Amount Code Type Chem.Name: PETROLEUM GAS).. Immediate 04A 1 4 WEST SIDE OF PLANT EHS Name: Ave. Daily A 1 4 WEST SIDE OF PLANT NlDelayed (Chronic) Amount Code Check all that apply: 365 A 1 4 WEST SIDE OF PLANT lZPure NMix --]Solid [RLiquid [XGas L]EHS No. of days on A 1 4 WEST SIDE OF PLANT site CAS: 107-21-I [lFire 04 Con. Press. Temp Storage Location, Trade Secret: No ElPressure Max Daily Chem.Name: ETHYLENE GLYCOL [OReactivity Amount Code Type EHS Name: NImmediate 04 WAREHOUSE #3 - D5 & D6 Ave. Daily D 1 BUILDING - COMPUTER ROOM Check all that apply: .. Delayed (Chronic) Amount Code 4 CHILLER E]Pure XMix 'Solid VILiquid -Gas IZEHS 365 WAREHOUSE #3 - D5 & D6 C 1 4 BUILDING - COMPUTER ROOM No. of days on _____ __CHILLER siteC 11-- HI I.... . .
CAS: 124-38-9 --Fire 04 Con. Press. Temp IStorage Location Trade Secret: No OLPressure Max Daily Amount Code Type Chem.Name: CARBON DIOXIDE [NReactivity EHS Name: 014 L2 TURBINE BLDG; GAS HOUSE- [XImmediate L 2 E SIDE OF PLANT Ave. Daily Check. all that apply: [-Delayed (Chronic) Amount Code C2 TURBINE BLDG; GAS HOUSE-IXNPure DiMix [lSolid [@]Liquid WXIGas C 2 E SIDE OF PLANT [JEHS 365 No. of days on
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Online Tier II Manager Page 8 of 10 I. IIsite II ýttp://www epcra.state.-nn.us/tier2manager/manager/Tier2Form asp?T2FaciliItylD=3637&sID=224215466&FF=Y 026/2006
Online Tier II Manager Page 9 of 10 Chemical Description f~~ia n elhIrnventory Storage Codes & Locations CAS: 80522-42-4 [NFire 04 Con. Press. Temp Storage Location Trade Secret: No L-Pressure Max Daily Chem.Name: PETROLEUM ASPHALT -Reactivity Amount Code Type EHS Name: [Immediate 03 P 1 4 OUTDOORS Ave. Daily Amount Code __ _ ________________ ELDelayed (Chronic) Check a!l that apply: D]Pure [X14ix []Solid Z*]Liquid lI]Gas LEkHS 090 No. of days on site CAS: 690111.83/ 69011207 1I]Fire 04 Con. Press. Temp Storage Location Trade Secret: No ZPressure Max Daily Chem.Name: EPICOR ANION/CATION RESIN EIReactivity Amount Code Type
.EHS Namne: .... '- . ., IIX m dae0 E0 1 C" C 1 4 4 AWAREHOUSE ES NPL #2; T VARIOUS
"
Ave. Daily AREAS IN PLANT Check all that apply: NDelayed (Chronic) Amount Code WAREHOUSE #2; VARIOUS
]Puie E]Mix MSolid ELiquid DGas ]EHS 365 E 1 4 AREAS IN PLANT No. of days on site CAS: N/A E]Fire 04 Con, Press. Temp Storage Location Trade Secret: No ElPressure Max Daily -
Chem.Name: BLACK BEAUTY PRODUCTS LiReactivity Amount Code Type " EHS Name: NXImmediate 04 J 1 4 PLANT Ave. Daily Check all that apply: .Delayed (Chronic) Amount Code E]Pure .IMix 91Solid ELiquid D]Gas [EHS 365 No. of days on site CAS: 7440-44-0 -Fire 04 Con. Press. Temp Storage Location Trade Secret: No EliPressure n Max Daily Chem.Name: COKE METALLERGICAL L]Reactivity Amount Code Type EHS Name: 04Immediate R 1 4 PLANT WELLS
~AmmeiateAve. Daily Amount Code E]Delayed (Chronic)
Check all that apply: [OPure XMix [NSolid E]Liquid E[]Gas IlEHS 014 No. of days on site hftp:/)www.epcra.state.mnn.us/tier2manager/manager/Tier2Ior .asp. Facili tyID=3637&sID=224215466&FF-Y/ 10,26/2006
Online Tier II Manager Page J0 of 10 physical and Health PmaDescription Inventory e Codes & Locations CHazards Storag CAS: 14808-60.7 r-6ire 01 Con. Press. Temp Storage Location Trade Secret: No --Pressure Max Daily SPECTRUS DT1401 EIReactivity Amount Code Type Chem.Name: (DETOXIFYING AGENT) mm01 J AT THE SITE FOR ZEBRA Ave. Daily MUSCLE TREATMENT EHS Name: CEck amleha: -Delayed (Chronic) Amount Code Ch~eck all 'hat apply: J6 [IPure [XMix XSolid ELiquid -IGas L]EHS 365 No. of days on site _P!.lPrint Set page to landscape before printing the page 1ttp://www epcra.state. mn. us/tier2amanab -erTe2Form asp. 2Faci1itylD=3637&sID=224215466&FF= 90.26/2006
2/26/2006 22EPCRA SE*N 312 (TIER II) EPA Repor.tinfkar: 2005 HAZARDOUS SUBSTANCE INVENTORY REPORT Plant: PrairieIsland GeneratingPlant Contact Person: Jeanne Tobias Work Phone: (651) 998-4626 - Alternate Contact: ERC ID#:, 25-150-0001 R.D2-5 0 124 hr #: (651) 998-4251 Maximum Xcel Site Container Amount 'Average Amount Reportable Substance Record # Tank # Storage Location Storage Method Capacity On-Site On-Site in 2005? Acetone .561 Warehouse #3 695' level truck isle Barrels 55 165 110 Gallons Gallons GallorS No Alcohol 562 Warehouse #3 695' level truck isle Barrels 55 .0 0 No Gallons Gallons Gallons Alumina Dessicant 2522 Ware House #1. For air dryer Drums 55 110 110 No Gallons Gallons Gallons Ammonium Hydroxide (28%) 1717 Outside Cold Lab. Not an EHS. Liquid is 7.5 Drums 55 55 25 lb/gal. Approx. 28% NH3. Gallons Gallons Gallons No Ammonnium Hydroxide (15%) 2523 Warehouse #2. EHS 2 lb/gal Drums 30 30 30 No Gallons Gallons Gailons Black Beauty Slag Products. 2279 Warehouse #3. Slag used for sand blasting. Bags 50 32,000 20,000 Yes Lbs Lbs Lbs Boric Acid (0- 2%) 553. Reactor coolant system Flow Through Process -14000 .14,000 . .Yes
" .-
Tank Lbs Lbs LbY Boric Acid (0- 2%) Solid . ..... 550 Above Laundry area - 735' level, Cold Lab, Bags 50 38,000 38,000 Ao( 2warehouse #1, #3and #8. Per Jeanne Tobias Yes comments on 2/10/5 combined records 550 and Lbs Lbs " Lbs Boric Acid (12%) .554 121 735' auxiliary bldg (boric acid batching tank) Flow Through Process 800B 800 800 Tank Yes Gallons Gallons Gallons A . 4 1 Boric Acid (12%) 940. ., 11.- 735' auxiliary building (boric acid storage tank) Flow Through Process w5000 5000 . 5000 Tank Yes Gallons Gallons Gallons Boric Acid (12%) 941 121 735' auxiliary building (boric acid storage tank) Flow Through Process 5000 5000 e5000 Tank Gallons Gallons Gallons Boric 'Acid (12%) 942 21 735' auxiliary building (boric acid storage tank) Flow Through Process 5000 5000 5000 Tank Gallons Gallons Gallons Boric Acid (6%) 552 Spent fuel pool and refueling storage tank Other
. - 50000
- 50000 .Yes 50000 Lbs Lbs Lbs Brine, R. 0 1965 I.ndoor, West of water treatment (flow trough AST 10000 10,000 10,000 process tank). No EHS. Assumed water density 8.4 lb/oal. Brine concentration in R. 0. water 26% Gallons Gallons Gallons I
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2/26/2006 O EPCRA SECOI 312 (TIER II) EPA Reportin qO'1r: 2005 HAZARDOUS SUBSTANCE INVENTORY REPORT Plant: PrairieIsland GeneratingPlant Contact Person: Jeanne Tobias Work Phone: (651) 998-4626 Alternate Contact: ERG ID#: 25-150-000 1 24 hr #: (651) 998-4251 Maximum Xcel Site . .Container Amount Average Amount Reportable Substance Record # Tank # Storage Location Storage Method Capacity On-Site On-Site in 2005? Carbon Dioxide, Gas 1053 Gas house, of plant next to radwaste bldg Cylinders 60 3000 300 3000 3 Y Yes - Lbs Lbs Lbs Carbon Dioxide, Liquid 1052 Turbine bldg Tank 12000 12,000 12,000 Yes Lbs Lbs -Lbs' Carbon Dioxide, Solid (Dry Ice) 2451 Used in March 2001 for dry ice blasting of 4 124 Other 0 0 cooling tower pump motor in Unit 2. Lbs Lbs Lbs Yes Coke, Metallurgical 2369 Bone Yard. Used in turbine bldg sumps to absorb Drums 65,000 30,000 oil. (Note: inventory should include installed coke Yes
+ amt on-site in drums + amt on-site awaitino Lbs Lbs Lbs.
Diesel Fuel[ 2015 Tank farm, north of plant near #5 warehouse. AST 550 500 250
.. tGallons Installed July'00. Replaced tank # 583. Gallons Gallons Yes Diesel Fuel 2256 On site Sept.2004 - October 2004, ( Temp for AST 550 0 0
.___-.. _...... - Sleamn, Generator Replacement) Yes
____________________ .Gallons Gallons Gallons Diesel Fuel #2 194 Inside guard house (day tank for...... security diesel) AST 500 500b .. 500 Gallons Gallons Gallons. ... Ye s Diesel Fuel #2 195 12 Inside screenhouse (#12 diesel cooling water AST 58b 575 . 575
* : 'pump day tank)Ye pumpdaytank) . . *Gallons Gallons Gallons Diesel Fuel #2 196 22 Inside screenhouse (# 22 diesel cooling water AST 580 575 575 pump day tank) Yes Gallons Gallons Gallons Diesel Fuel #2 197 Inside tuibine bldg (DI diesel generator fuel oil da. ,.tank) AST 500 a*Yes500 500 ,
-ay ta.k" ' *- Gallons Gallons Gallons Diesel Fuel #2 198 Inside turbine bldg (D2 diesel generator fuel oil AST 500 500 500 daylank) Gallons Gallons Gallons Yes Oiesel Fuel #2 199 Inside screenhouse (fire pump diesel oil day tank) AST 280 200 . 200 Yes Gallons Gallons Gallons Diesel Fuel #2 200 Inside bldg. #3 (#3 diesel generator day tank) AST 125 125 100 Yes Gallons Gallons " Gallons Diesel Fuel #2 201 Inside bldg. #4 (#4 diesel generator day tank) AST 125 125 100 Yes Gallons Gallons Gallons 2 of 10
2/26/2006 EPCRA SEC* 312 (TIER II) EPA Reportinodr: 2005 HAZARDOUS SUBSTANCE INVENTORY REPORT Plant: PrairieIsland Generating Plant Contact Person: Jeanne Tobias Work Phone: (651) 998-4626 Alternate Contact: ERC ID#: 25-150-0001 24 hr #: (651) 998-4251 Maximum Xcel Site Container Amount Average Amount Reportable Substance Record # Tank # Storage Location Storage Method Capacity On-Site On-Site in 2005? Diesel Fuel #2 210 21 Outside near SBO bldg. (fuel oil receiving tank) AST 15000 15000 1000 Yes Gallons Gallons Gallons Diesel Fuel #2 211 21 Underground vault southwest side of SBO bldg. AST 32778 32778 32700. (D5 fuel oil storage tank) Yes Gallons Gallons Gallons
'Diesel Fuel #2 212 22 Underground vault southwest side of SBO bldg. AST 32778 32778 32700 (D6 fuel oil storage tank) Yes Gallons Gallons Gallons Diesel Fuel #2 213 23 Underground vault southwest side of SBO bldg. AST 32778 32778 32700 (D5 fuel oil storage tank) Yes Gallons Gallons Gallons Diesel Fuel #2 214 24 Underground vault southwest s ide of SBO bldg. AST 32778 32778 32700 (D6 fuel oil storage tank) Yes Gallons Gallons Gallons Diesel Fuel #2 218 21 Inside SBO bldg. (day tank for D5 diesel) AST 665 665 640[l Yes.
Gallons Gallons Gallons g((day tank for D6 diesel) AST 665 Diesel Fuel #2 219 i 22 Inside S80 buildin 665 640 Yes Gallons Gallons Gallons Diesel Fuel #2 459 121 East of screenhous se (diesel fire pump oil storage UST 4000 4000 3000 tank) Yesasoa Gallons Gallons Gallons Diesel Fuel #2 460 124 East of service building (124 diesel generator oil UST 19500 19500 19500 storage tank). Yes Gallons Gallons Gallons Diesel Fuel #2 123 East of service building (123 diesel generator oil UST 19500 :19500 19500 storage tank) Gallons Yes Gallons Gallons Diesel Fuel #2 East of service building (122 diesel generator oil
-~ r ... . I-462 122 UST 19500 19500 1950 storage tank) Yes Gallons Gallons Gallons Diesel Fuel #2 463 121 East of service building (121 diesel generator oil UST 19500 19500 19500 storage tank) Yes Gallons Gallons Gallons Diesel Fuel #2 464 122 East of turbine building (122 heating boiler oil LIST 35000 35000 25000 storage tank). Yes Gallons Gallons Gallons Diesel Fuel 4t2 East of turbine bldg. (121 heating boiler oil 465 121 LIST 35000 35000 35000 storage tank) Yes Gallons Gallons Gallons I
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2/26/2006 EPCRA SECJ 312 (TIER II) EPA Reportin ar: 2005 HAZARDOUS SUBSTANCE INVENTORY REPORT Plant: PrairieIsland Generating Plant Contact Person: Jeanne Tobias Work Phone: (651) 998-4626 Alternate Contact: ERC ID#: 25-150-0001. 24 hr #: (651)998-4251 Maximum Xcel Site Container Amount Average Amount Reportable Substance Record # Tank # Storage Location Storage Method Capacity On-Site On-Site in 2005? Diesel Fuel #2 466 122 East of screenhouse (22 diesel cooling water UST 19500 19.500 , .. 19500 Y6s pump oil storage tank) . Gallons Gallons Gallons Diesel Fuel #2 467 121 East of screenhouse (12 diesel cooling water UST 19500 19500 .- 19500 pump oil storage tank) Gallons Yes
.. . , Gallons Gallons Ehytene Glycol (phosphate) 1334 Turbine Bldg 695'. Antifreeze supplemental Drums 55 110 . Yes Dowtherm SR-ltnhibitor coolant additive. No EHSs. Liquid is 12.8 lb/gal. Goann Ethylene alveol = 8%. Gallons Gallons Gallons Ethylene Glycol (100%) 592 Warehouse #3. Not an EHS. 9.4 lb/gal Barrels 55 850 550 "
Yes Gallons Gallons Gallons Ethylene Glycol (50%) 593 D5 & D6 building system Other 5000 4800 4600 Yes Gallons Gallons Gallons Ethylene Glycol (50%) 594 3 Heating systems and computer room chiller Other 1600 3000 1400 Yes Gallons Gallons " Gallons Formaldehyde various grades ....... 1740 . Formaldehyde various grades at PI environmental Pails .5 ... 11.. 10 *No (5%, 10% &37%). Laboratory...-Gallns .. Gallons GaonsNo Freon 11 1048 Warehouse #2. Not an EHS Barrels 90 1f800 1800 No Lbs Lbs Lbs
* : . .Lbs Lbs Lbs Freon 22 1050SO . Warehouse #2 (no THSs) (9.9 lb/gal) Cylinders .20 .100 . 100, No Gasoline . . "..rank T.2014........
farm northof plant,.near #5 Warehouse. AST 550 500 250 Installed.July '00...Replaced tank # 209. Gallons Gallons q 'No GE Betz MD 4106, Molybdate 2914 Unit 2 Turbine Bldg. 715", warehouse #2, Whse 04 Drums 55 385 385 Corrosion Inhibitor N Gallons Gallons Gallons GE Betz Spectrus NX 1105 2156 Chemistry Storage Room, Not EHS Pails 5 5 5 No Gallons Gallons Gallons GE, Betz Spectrus 1106 1962 Chem storage room, warehouse #2, warehouse Pails 5 10 10 . (Isothiazolin) #4, no EHS, 11.62 lb/gal. Gallons Gallons Gallons No Halon 1301 1046 Various fire suppression areas; various sizes Cylinders 3731 37N31 Lb~s Lbs Lbs No 4 ,f10 I.
2/26/2006 EPCRA SEC 9 N 312 (TIER II) EPA Reportinear: 2005 HAZARDOUS SUBSTANCE INVENTORY REPORT Plant: PrairieIsland GeneratingPlant Contact Person: Jeanne Tobias Work Phone: (651) 998-4626 Alternate Contact: ERC ID#: 25-150-000 1 24 hr #: (651) 998-4251 Maximum A A" XceI " Site ".Container Amount . Average.Amount Reportable Substance Record # Tank # Storage Location Storage Method Capacity On-Site On-Site in 2005? Hydrazine (35%) 557 Warehouse #2. Barrels 30 300 200 Yes Gallons Gallons Gallons Hydrazine (35%) 558 3 Outside cold lab. EHS. Liquid = 8.5 tb/gal, Unit 1 Barrels 30 300 90 Turbine Bldg. 695' Gallons Gallons . Gallons Yes Hydrochloric Acid *837 Chem storage, cold lab 695'; hot lab (exempt) Glass Bottles 0.5 4 2 No Gallons Gallons Gallons Hydrogen, Gas 1054 Hydrogen gas house (1 lb / 194 113) Cylinders 261 13050 13050 No* Cubic Feel Cubic Feet Cubic Feet Ins~taCote ML-1-Stiff, Pad A 1826 Unit 1 turbine bldg drop area. No EHSs, but TRI Drums 55 0 0 N
= MDI (unk %). 10.0 lb/gal. New in 2002. Gallons Gallons Gallons No InstaCote ML-2 Soft Resin, Part B 2512 Unit 1 turbine bldg drop area. No EHSs or TRIs. Drums 55 0 . 0 l8.4 b/gal. New in 2002. Gallons Gallons GalonsNo Kerosene 781 . Warehouse #3. Not an EHS. 6.9 lb/gal Pails 5 50 40 No Gallons Gallons Gallons Kerosene -1718 Warehouse #3, 6.9 lb/gal. Not an EHS. .. Drums 55 220 1. ~No""
N0 Gallons Gallons Gallons Lead & Lead Compounds in Lead- 2065 Various areas (warehouse #5 and #8, Turbine and Battery 46,200 46,200 Acid Batteries ' . ServiceBldg., battery room etc.) Approx. 10.6 lb Yes of Pb/lb of acid. 10.6 x 4360 lb of acid = 46.200 Lbs Lbs Lbs Milsolv 3224 M. 190 Proof 2981 H20, denatured alcohol, Isopropanol etc.East Drums 55 11055
. Turbirie Truck Aisle. density 6.78 lb/gal, no EHS. Gallons Gallons Nallonso Nalco 1250, Carbohydrazide 1251 Warehouse #2 and whse #4; Cold Lab 695'. No Banels 55 110 55 EHSs. 8.7 lb/gal. Gallons Gallons Gallons No Nalco 1318, Sodium Bromide 967 121 Inside chlorine building. 12.2 lb/gal. NaBr = 40%. AST 1273 1273 500 No EHSs. On 7/24/00 Nalco Acti-brom 1338 Yes switched to Nalco 1318. Both have same Gallons Gallons Gallons Nalco 1336 (Sodium Tolyltriazol) 2915 Chemistry Storage room. Pails 5 10 5 No Gallons Gallons Gallons Nalco 39M Corrosion Inhibitor, 1433 Warehouse #2 and Chemistry Storage Room, No Pails 5 55 30 Nitrite Based EHSs present. 9.5 lb/gal. Gallons Gallons Gallons No I
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2/26/2006- 260EP.o"a20EPCRA SE*N 312 (TIER II) EPA Re0ortinobar 200.5' HAZARDOUS SUBSTANCE INVENTORY REPORT Plant: PrairieIsland Generating Plant Contact Person. Jeanne Tobias Work Phone: (651) 998-4626 Alternate Contact: ' ERC lD#: 25-150-000 1 24 hr #: (651) 998-4251 Maximum S Xcel Site Container Amount Average Amount Reportable Substance Record # Tank # Storage Location Storage Method Capacity On-Site On-Site in 2005? Nalco 7338 (Biocide) 833 Warehouse #2. No EHSs (9.3 lb/gal) Pails 5 0 0 No. Gallons Gallons Gallons Nalco 8103 Coagulant 2917 9.1 lbs/gal, No EHS, Chem Storage Room Pails 5 10 "-N5 Gallons Gallons. Gallons Nalco 8320 (300 ppm Sodium 2016 This tank is actualy a *holding"tank for when AST 500 500 150 Chromate) - maintenance is performed on the emergency No diesel. No EHSs oresent. ADDrox. 8.3 Ib/oal This Gallons Gallons Gallons Nalco 8320, Sodium Chromate 910 Warehouse #3. Pure prodct. No EHSs. 14.2 Drums 30 30 30 No lb/gal. Gallons Gallons Gallons Nalco 8338 (Nitrite Based . 2916 Chemistry Storage room, Warehouse #2 Pails 5 15 15 corrosion Inhibitor) N Gallons Gallons Gallons Nalco Pre-tect 2040 HP, MPA 1044 Warehouse #2 and #4, cold lab 695'. No EHSs Drums 55 440 1.10 present. 8.1 lb/gal. Gallons Gallons Gallons o Nitrogen, Liquid 555 Outside, E of turbine building. Not an EHS. (6.7 Tank 1500 1500 1500 lb/gal) .... Gallons Gallons Gallons Nitrogen, Liquid 556 East of turbine building, Tank 1500 1500 .1500 Y-Yes . Gallons Gallons Gallons Oil, Delvac 1330 2967 Turbin Big Unit 1 Oil Room. Oil is filtered. AST 100 100 55 Yes Gallons Gallons Gallons Oil, Diesel Lube 572 Screenhouse (#12 diesel cooling water pump Flow Through Process 110 . 110. 100 crankcase) -. Tank . - Yes Gallons Gallons Gallons Oil, Diesel Lube 573 Screenhouse (#22 diesel cooling water pump Flow Through process 110 110 100 Yes crankcase) Tank - . I'l. .e . Gallons Gallons Gallons Oil, Diesel Lube 576 Turbine building (D1 diesel generator crankcase) Flow Through Process 250 250 150 Tank Yes T Gallons Gallons Gallons Oil, Diesel Lube 577 Turbine building (D2 diesel generator crankcase) Flow Tank Through Process 250 250 150 Y Yes Gallons Gallons Gallons Oil, Diesel Lube 579 D3 building south of reactor (D3 diesel generator Flow Through Process 250 250 150 crankcase) Tank Gallons Gallons Gallons. 6 of 10
2/26/2006 2/262006EPCRA SECION 312 (TIER 11) EPA Reportin ar: 2005. HAZARDOUS SUBSTANCE INVENTORY REPORT Plant: PrairieIsland GeneratingPlant Contact Person: Jeanne Tobias Work Phone: (651) 998-4626 ERC ID#: 25-150-0001 Alternate Contact:
...
24 hr #: (651) 998-4251 Maximum
-Xcel Site Container Amount Average Amount Reportable Substance Record # Tank # Storage Location Storage Method Capacity On-Site On-Site in 20'"?'
Oil, Diesel Lube 580cD4 building south of reactor (D4 diesel generator Flow Through Process 250 250 150 . crankcase) Tank GlosGlnsalnsYes Oil, DTE 24 2966, Oil Room in Turbine Unit 1 building 695'. Oil is AST 100 100 55 filtered Gallons Gallons Gallons Oil, DTE Oil BB SAE 40 2957 Oil Room in the Turbine Big unit 1 695'. Oil is AST 100 100 . filtered 55 Gallons Gallons I Gallons Yes Oil, DTE Oil Extra Heavy SAE 30 2960 Oil Roomin turbine big unit 1 695', Oil is filtered AST 100 100 55 Yes Gallons Gallons Gallons 01, DTE Oil Heavy 2961 Oil Room inTurbine big unit 1 695'. Oil is filtered AST 100 100 55 Gallons Gallons Gallons Oil, DTE OIl Light SAE10 2964 Oil Room in Turbine Unit1 big. 695'. Oil is filtered AST 100 100 55 _ _ _ _ _Gallons Gallons Gallons Yes Oil, DTE Oil Medium 2963 Oil Room in Turbine Bid Unit'1. Oil is filtered AST 100 100 55 Gallons Gallons Gallons Oil, DTE25 2968 Oil Room in Turbine Big 695'. Oil is filtered. AST 100 100 55 Yes Gallons Gallons Gallons Oil, Duragard Super HD 15W-40 2956 Oil Room in Turbine Big Uniti 695' AST 100 100 55 Yes Gallons Gallons Gallons Oil, Fryquel EHC Hydraulic Fluid 1336 Warehouse #2. Not an EHS. (9.5 lb/gal) Drums 55 110 -. 55Yes Gallons Gallons Gallons Oil, Fryquel EHC Hydraulic Fluid 1337 Turbine Bldg 715'. Tank 55 200 200.
. -Yes Gallons Gallons Gallons Oil, Lube 220 SBO building (lube oil storage tank). Actual AS T 850 8650 800 product is Shell Rotella TMultilube Oil: 7.3 lb/gal Yes and no EHSs or reoortable TRIs. Gallons Gallons Gallons Oil, Lube 221 22 Inside SBO building (lube oil storage tank). Actual AS T 850 850 800 product is Shell Rotella T Multilube Oil: 7.3 tb/gal- Yes and no EHSs or reoortable TRIs. Gallons Gallons Gallons Oil, Mobil Gear 629 2958 Oil Room-oil is filtered and Turbine Bldg. Unit 1 AS T 100 695'. 100 55 Yes Gallons Gallons Gallons j
7of 10
2/26/2006 EPCRA SECA 312 (TIER II) EPA ReportinaOr: 2005 HAZARDOUS SUBSTANCE INVENTORY REPORT Plant: PrairieIsland Generating Plant Contact Person: Jeanne Tobias Work Phone: (651) 998-4626 Alternate Contact: ERC ID#: 25-150-0001 25 24 hr #: (651) 998-4251:" Maximum Xcel Site Container Amount Average Amount Reportable Substance Record # Tank # Storage Location Storage Method Capacity Onunt-Site Aon2e On-Site Caaciy OnSit On-itein 2005? 1 ________ Oil, Mobil Rarus 827 2965 Oil Room in Turbine Unit 1 big. 695' Oil is filtered AST 100 100 Yes
.. .Yes .. .
Gallons Gallons Gallons Oil, Mobil SHC-525 2970 Oil Storage Room in Turbine Big Unit 1 695'. Oil AST 100 100 55 Y isfiltered Gallons Gallons Gallons Oil, Mobil SHC-632 2969 Oil Storage Room in Turbine Building 695'. Oil is AST 100 100 55 filtered. Gallons Gallons Gallons Yes Oil, Mobile SHC-630 2955 Oil Room in Turbine Big 695'. Oil is filtered. AST 100 100 55 Yes Gallons Gallons Gallons Oil, Mobilgard 450 2959 Oil Room Turbine Big unit 1 695'. Oil is filtered. AST 100 100 " 55 Yes Gallons Gallons Gallons Oil, Transformer (Caltran 60-30) 2722 3 tankers on-site Nov 2002. No EHSs or TRIs Tanker 5700 0 0 present. 7.5 lb/gal. Product was placed in #1GT No after old oil was removed. Product (old and new) Gallons Gallons Gallons Oil, Turbine Lube 584 121 Oil storage room (turbine oil storage tank) AST 14000 14000 10000 Yes
. Gallons Gallons Gallons Oil, Turbine Lube 585 Oil storage room - 121 turbine oil makeup tank AST 2000 2000 1500 .... Yes Gallons Gallons Gallons Oil, Turbine Lube 586 11 Turbine building (#1 turbine generator oil Flow Through Process 14000 14000 13 000 sumn/reservoirt Tank Gallons Gallons Gallons Yes Oil, Turbine Lube 587 21 Turbine building (#2 turbine generator oil Flow Through Process 14000 140 00 13000Y
..sump/reservoir).. Tank Gallons Gallons Gallons Oil, Used 202 121 Outside west of plant (waste oil tank). AST '5000 3500 1'500
;Y Gallons Gall--- Gallons Yes Oil, Used 203 122 Outside west of plant (waste oil tank). AST 5000 3500 1500 Yes, Gallons Gallons Gallons i i + I Oil, Used 217 Inside turbine bldg oil rin. AST 250 250 150 Yes Gallons Gallons Gallons Oxygen, Liquid 1056 Turbine bldg Dewars 25 50 35 No Gallons Gallons Gallons 8 of 10
2/26/2006' 22EPCRA SEAN 312 (TIER II) EPA Reportinoar: 2005 HAZARDOUS SUBSTANCE INVENTORY REPORT Plant: PrairieIsland GeneratingPlant Contact Person: Jeanne Tobias Work Phone: (651) 998-4626 Alternate Contact: ERC ID#: 25-150-0001 24 hr #: (651) 998-4251 Maximum Xcel Site Container Amount Average Amount Reportable Substance Record # Tank # Storage Location Storage Method Capacity On-Site On-Site in 2005? Petroleum Asphalt (Roofing Tar) 1214 Tanker Truck, parking lot. NPD Vault, Env Lab, Tanker 4000 3000 2000 De-Icing House, OAB,*Plant Screen House, Int Gallons Gallons GallonsYes Screen House. So. Gr. 0.9 Propane 588 West of plant Tank 1000 900 800 Yes Gallons Gallons Gallons Propane 589 West of plant. Used for NPD heat. No EHSs Tank 1000 900 800 Yes present. 4.2 tb/gal. Gallons Gallons Gallons Propane 590 West of plant, Used for NPD Bldg. heat. Tank i000 900 800 Yes Gallons Gallons Gallons Propane 1657 Met tower bldg Tank 250 250 250 Yes Gallons Gallons Gallons Resin, Clinophthilonite 2520 Warehouse #2 and warehouse #4 No EHSs Drums 55 220 220 No preset. Gallons Gallons Gallons Resins, Demineralizer 1327 Various Locations (installed and in stock). Fiber Drums &Flow Thru 37000 37000 Yes Includes: Epicor anion, cation and mixed bed Process Tanks Lbs Lbs Lbs resins. No EHSs. 10.0 lb/aal _bsLbsLbs_ Resins, Lithium Hydroxide (Mixed 2275 Warehouse # 2 and warehouse #4. (50 L drums) Drums 140 4200 2.100 Bed) Lbs Lbs L..Nbs Salt (Sodium Chloride) 2296 Training center and various plant areas and Bags 50 2000 . . 2000 turbine bldg. No EHSs present. Lbs Lbs NoLbs Sodium Bisulfate 1743 Warehouse #4.. Not an EHS.Water Treatment Drums 100. 100 .1 1 00 No" Cleaning " Lbs Lbs Lbs Sodium Carbonate 1742 1 Warehouse #2. Pails 50 50 50 No Lbs Lbs Lbs" S~odium Hydroxide (10%) 206 11 Inside auxiliary bldg (caustic standpipe - unit 1). AST 2700 2700 2600 Yes Not an EHS. Approx. 8.3 Ib/gal. Gallons Gallons Gallons Sodium Hydroxide (10%) .207 21 Inside auxiliary bldg (caustic standpipe - unit 2) AST 2700 2700 2600 Gallons Gallons Gallons Sodium Hydroxide (10%) 2274 Warehouse #2. Received on 4/00. Drums 55 55 55es Gallons Gallons Gallons 9 of 10
2/26/2006 0 260EPCRA SEEN 312 (TIER 1I) EPA Reportint~ar: 2005 HAZARDOUS SUBSTANCE INVENTORY REPORT Plant: PrairieIsland GeneratingPlant Contact Person: Jeanne Tobias Work Phone: (651) 998-4626 Alternate Contact: ERC ID#: 25-150-0001 24 hr #: (651) 998-4251 Maximum Xcel Site Container Amount Average Amount Reportable Substance Record # Tank # Storage Location Storage Method Capacity On-Site On-Site in 2005? Sodium Hypochlorite (15%) 215 121 Inside chlorine bldg (bulk sodium hypochlorite AST 1273 1273 600 tank) No EHSs. Liquid is 10.0 lb/gal. Gallons Gallons Gallons Yes Sodium Hypochlorite (15%) 966 122 Inside chlorine building (bulk sodium hypochlorile AST 1273 1273 600 tank). No EHSs. Liquid is 10.0 tb/gal. Gallons Gallons Gallons Yes Sodium Sulfite 1332 Outside Cold Lab. Not EHS or TRt. 21.6 lb/gal. Bags 100 100 100 Bleach used for spill clean-up. Lbs Lbs Lbs No Spectrus CT1300 (Biocide) 2359 Used for April 2004 zebra mussel treatment. No Tole Tank 300 0 0 N EHSs or TRIs present. 8.0 lb/gal.(tote,drums and NO oails). Gallons Gallons Gallons Spectrus DT1401 (Detoxifying 2604 Used for Apr 2004 zebra mussel treatment. Bags 100 0 0 Agent) Bennonite Clay. No EHSs or TRIs present. Lbs Lbs Lbs Yes Stoddard Solvent 563 Warehouse #3, 695' level, truck isle. No EHS. 6.5 Barrels 55 275 165 lb/gal Gallons Gallons Gallons Sulfur Hexaflouride 841 Substation bldg. Several small cylinders. Not an Cylinders 480 480 360 EHS. Lbs Lbs Lbs Sulfuric Acid in Lead Acid Batteries 1744 Various locations in plant, forklifts and substation. Battery 4360 4360 Total = approx. 4360 lb. Lbs Lbs Lbs Yes Zep~~LbDyna 14 us16522 1 Zep Dyna 143 1655 .Warehouse #2 and in two parts washers. Installed Drums 30 220 110 - late in 1998. 6.5 lb/gal. No EHSs. Gallons No Gallons Gallons This report was used as the basis for your facility's EPCRA Section 312 hazardous substance inventory (TIER II) submittal in 2006. Please keep this report in your EPCRA 312 file for at least 5 years. If there are any questions, contact Bruce Denney in ERAD at 612-337-2085. 10 of 10
AIR EMISSION PERMIT NO. 04900030-003 IS ISSUED TO Northern States Power Company dba Xcel Energy XCEL ENERGY - PRAIRIE ISLAND NUCLEAR 1717 Wakonade Drive East Welch, Goodhue County, MN 55089 The emission units, control equipment and emission stacks at the stationary source authorized in this permit are as described in the following permit application(s): Permit Type Application Date Issue Date Action # Total Facility Operating Permit September 15, 1995 June 22, 2000 001 Major Amendment November 13, 2002 June 3, 2003 002 Major Amendment February 14, 2006 See Below 003 S Total Facility Operating Permit - Reissuance December 20, 2004 1 This permit authorizes the Permittee to operate the stationary source at the address listed above unless otherwise noted in Table A. The Permittee must comply with all the conditions of the permit. Any changes or modifications to the stationary source must be performed in compliance with Minn. R. 7007.1150 to 7007.1500. Terms used in the permit are as defined in the state air pollution control rules unless the term is explicitly defined in the permit. Permit Type: Federal; Pt 70/Limits to Avoid NSR Issue Date: January 3, 2007 Expiration: January 3, 2012 Title I Conditions do not expire. Richard J. Sandberg, Manager Air Quality Permits Section Industrial Division for Brad Moore Commissioner Minnesota Pollution Control Agency TDD (for hearing and speech impaired only): (651) 282-5332 Printedon recycled paper containingat least lO%fibersfrom paper recycled by consumers
TABLE OF CONTENTS Notice to the Permittee Permit Shield Facility Description Table A: Limits and Other Requirements Table B: Submittals Appendices: Appendix A: (Not used in this permit) Appendix B: Insignificant Activities 0
NOTICE TO THE PERMITTEE: Your stationary source may be subject to the requirements of the Minnesota Pollution Control Agency's (MPCA) solid waste, hazardous waste, and water quality programs. If you wish to obtain information on these programs, including information on obtaining any required permits, please contact the MPCA general information number at: Metro Area 651-296-6300 Outside Metro Area 1-800-657-3864 TTY, 651-282-5332 The rules governing these programs are contained in Minn. R. chs. 7000-7105. Written questions may be sent to: Minnesota Pollution Control Agency, 520 Lafayette Road North, St. Paul, Minnesota 55155-4194. .Questions about this air emission permit or about air quality requirements can also be directed to the telephone numbers and address listed above. PERMIT SHIELD: Subject to the limitations in Minn. R. 7007.1800, compliance with the conditions of this permit shall be deemed compliance with the specific provision of the applicable requirement identified in the permit as the basis of each condition. Subject to the limitations of Minn. R. 7007.1800 and 7017.0100, subp. 2, notwithstanding the conditions of this permit specifying compliance practices for applicable requirements, any person (including the Permittee) may also use other credible evidence to establish compliance or noncompliance with applicable requirements.
FACILITY DESCRIPTION: This air emission facility is part of the Northern States Power Prairie Island Nuclear Generating Plant. The air emission facility is composed of an oil-fired heating boiler and 12 diesel-fired engines that are used to either generate emergency power, pump cooling water, or pump water for fire fighting. PERMIT ACTION 003 DESCRIPTION: This is a reissuance of a Part 70 operating permit that includes changes applied for as a major amendment. The major amendment is to increase the NOx limit for each diesel engine from 3.35 to 4.0 lbs/mmBTU heat input to allow for some cushion for stack testing the larger diesel engines. As a result, the fuel usage limit will be decreased from 83955 to 70238 gallons/month. This is a Title I Condition emission limit to restrict facility NOx potential emissions to less than the major source level of 250 tons/year. No emission changes are allowed by this permitting action.
TABLE A: LIMITS AND OTHER REQUIREMENTS A-1 01/03/07 Facility Name: Xcel Energy - Prairie Island Nuclear Permit Number 04900030 - 003 Table A contains limits and other requirements with which your facility must comply. The limits are located in the first column of the table (What To do). The limits can be emission limits or operational limits. This column also contains the actions that you must take and the records you must keep to show that you are complying with the limits. The second column of Table A (Why to do it) lists the regulatory basis for these limits. Appendices included as conditions of your permit are listed in Table A under total facility requirements. Subject Item: Total Facility What to do Why to do it OPERATIONAL REQUIREMENTS hdr The Permittee shall comply with National Primary and Secondary Ambient Air 40 CFR pt. 50; Quality Standards, 40 CFR pt. 50, and the Minnesota Ambient Air Quality Minn. Stat. Sec. 116.07, subds. 4a & 9; Standards, Minn, R. 7009.0010 to 7009.0080. Compliance shall be demonstrated Minn. R. 7007.0100, subps. 7A, 7L & 7M; upon written request by the MPCA. Minn. R. 7007.0800, subps. 1, 2, & 4; Minn. R. 7009.0010 - 7009.0080 Circumvention: Do not install or use a device or means that conceals or dilutes Minn. R. 7011.0020 emissions, which would otherwise violate a federal or state air pollution control rule, without reducing the total amount of pollutant emitted. Operation Changes: In any shutdown, breakdown, or deviation the Permittee shall Minn. R. 7019.1000, subp. 4 immediately take all practical steps to modify operations to reduce the emission of any regulated air pollutant. The Commissioner may require feasible and practical modifications in the operation to reduce emissions of air pollutants. No emissions units that have an unreasonable shutdown or breakdown frequency of process or control equipment shall be permitted to operate. Fugitive Emissions: Do not cause or permit the handling, use, transporting, or Minn. R. 7011.0150 storage of any material in a manner which may allow avoidable amounts of particulate matter to become airborne. Comply with all other requirements listed in Minn. R. 7011.0150. Noise: The Permittee shall comply with the noise standards set forth in Minn. R. Minn. R. 7030.0010 - 7030.0080 7030.0010 to 7030.0080 at all times during the operation of any emission units. This is a state only requirement and is not enforceable by the EPA Administrator or citizens under the Clean Air Act. Inspections: The Permittee shall comply with the inspection procedures and Minn. R. 7007.0800, subp. 9(A) requirements as found in Minn. R. 7007.0800, subp. 9(A). The Permittee shall comply with the General Conditions listed in Minn. R. Minn. R. 7007.0800, subp. 16 7007.0800, subp. 16. PERFORMANCE TESTING hdr Performance Testing: Conduct all performance tests in accordance with Minn. R. Minn. R. ch. 7017 ch. 7017. Performance Test Notifications and Submittals: Minn. R. 7017.2018; Minn. R. 7017.2030, subps. 1-4; Performance Test Notification (written): due 30 days before each Performance Test Minn. R. 7017.2035, subps. 1-2 Performance Test Plan: due 30 days before each Performance Test Performance Test Pre-test Meeting: due 7 days before each Performance Test Performance Test Report: due 45 days after each Performance Test Performance Test Report - Microfiche: due 105 days after each Performance Test The Notification, Test Plan, and Test Report may be submitted in alternative format as allowed by Minn. R. 7017.2018. Limits set as a result of a performance test (conducted before or after permit Minn. R. 7017.2025 issuance) apply until superseded as specified by Minn. R. 7017.2025 following formal review of a subsequent performance test on the same unit and completion of permit reopening and reissuance. If limits serve to cause more stringent operating conditions, resulting changes to facility operation need to be made immediately. If limits serve to relax current operating conditions, resulting changes to facility operation must not be made prior to issuance of permit amendment with new limit incorporated. MONITORING REQUIREMENTS hdr Monitoring Equipment Calibration: Annually calibrate all required monitoring Minn. R. 7007.0800, subp. 4(D) equipment. Operation of Monitoring Equipment: Monitoring a process or control equipment Minn. R. 7007.0800, subp. 4(D) connected to that process is not necessary during periods when the process is shutdown, or during checks of the monitoring systems, such as calibration checks 0 and zero and span adjustments. If monitoring records are required, they should reflect any such periods of process shutdown or checks of the monitoring system. RECORDIKEEPING hdr
TABLE A: LIMITS AND OTHER REQUIREMENTS A-2 01/03/07 Facility Name: Xcel Energy - Prairie Island Nuclear Permit Number: 04900030 - 003 Recordkeeping: Retain all records at the stationary source for a period of five (5) Minn. R. 7007.0800, subp. 5(C) years from the date of monitoring, sample, measurement, or report. Records which must be retained at this location include all calibration and maintenance records, all original recordings for continuous monitoring instrumentation, and copies of all reports required by the permit. Records must conform to the requirements listed in Minn. R. 7007.0800, subp. 5(A). Recordkeeping: Maintain records describing any insignificant modifications (as Minn. R. 7007.0800, subp. 5(B) required by Minn. R. 7007. 1250, subp. 3) or changes contravening permit terms (as required by Minn. R. 7007.1350 subp. 2), including records of the emissions resulting from those changes. REPORTING/SUBMITTALS hdr Shutdown Notifications: Notify the Commissioner at least 24 hours in advance of a Minn. R. 7019.1000, subp. 3 planned shutdown of any control equipment or process equipment if the shutdown would cause any increase in the emissions of any regulated air pollutant. If the owner or operator does not have advance knowledge of the shutdown, notification shall be made to the Commissioner as soon as possible after the shutdown. However, notification is not required in the circumstances outlined in Items A, B and C of Minn. R. 7019.1000, subp. 3. At the time of notification, the owner or operator shall inform the Commissioner of the cause of the shutdown and the estimated duration. The owner or operator shall notify the Commissioner when the shutdown is over. Breakdown Notifications: Notify the Commissioner within 24 hours of a breakdown Minn. R. 7019.1000, subp. 2 of more than one hour duration of any control equipment or process equipment if the breakdown causes any increase in the emissions of any regulated air pollutant. The 24-hour time period starts when the breakdown was discovered or reasonably should have been discovered by the owner or operator. However, notification is not required in the circumstances outlined in Items A, B and C of Minn. R. 7019.1000, subp. 2. At the time of notification or as soon as possible thereafter, the owner or operator shall inform the Commissioner of the cause of the breakdown and the estimated duration. The owner or operator shall notify the Commissioner when the breakdown is over. Notification of Deviations Endangering Human Health or the Environment: As soon Minn. R. 7019.1000, subp. 1 as possible after discovery, notify the Commissioner or the state duty officer, either orally or by facsimile, of any deviation from permit conditions which could endanger human health or the environment.. Notification of Deviations Endangering Human Health or the Environment Report: Minn. R. 7019.1000, subp. 1 Within 2 working days of discovery, notify the Commissioner in writing of any deviation from permit conditions which could endanger human health or the environment. Include the following information in this written description:
- 1. The cause of the deviation;
- 2. The exact dates of the period of the deviation, ifthe deviation has been corrected;
- 3. Whether or not the deviation has been corrected;
- 4. The anticipated time by which the deviation is expected to be corrected, if not yet corrected; and
- 5. Steps taken or planned to reduce, eliminate, and prevent reoccurrence of the deviation.
Application for Permit Amendment: If a permit amendment is needed, submit an Minn. R. 7007.1150 - 7007.1500 application in accordance with the requirements of Minn. R. 7007.1150 through Minn. R. 7007.1500. Submittal dates vary, depending on the type of amendment needed. Extension Requests: The Permittee may apply for an Administrative Amendment Minn. R. 7007.1400, subp. I(H) to extend a deadline in a permit by no more than 120 days, provided the proposed deadline extension meets the requirements of Minn. R. 7007.1400, subp. 1(H). Emission Inventory Report: due on or before April 1 of each calendar year following Minn. R. 7019.3000 - 7019.3010 permit issuance. To be submitted on a form approved by the Commissioner. Emission Fees: due 60 days after receipt of an MPCA bill. Minn. R. 7002.0005 - 7002.0095
TABLE A: LIMITS AND OTHER REQUIREMENTS A-3 01/03/07 Facility Name: Xcel Energy - Prairie Island Nuclear Permit Number: 04900030 - 003 Subject Item: GP 001 Internal Combustion Engines Associated Items: EU 002 Diesel Engine D1 EU 003 Diesel Engine D2 EU 004 Diesel Cooling Water Pump 12 EU 005 Diesel Cooling Water Pump 22 EU 006 Diesel Fire Pump 121 EU 007 Diesel Engine D3 EU 008 Diesel Engine D4 EU 009 Security Diesel Engine EU 010 Diesel Engine D5-1 EU 011 Diesel Engine D5-2 EU 012 Diesel Engine D6-1 EU 013 Diesel Engine D6-2 EU 014 Temporary Diesel Engine(s) >600 Hp EU 015 Temporary Diesel Engine(s) <600 Hp What to do Why to do it LIMITS AND OPERATING RESTRICTIONS hdr Fuel Usage: less than or equal to 70238 gallons/month using 12-month Rolling Title I Condition: To avoid classification as a major Average for GP 001 source under 40 CFR Section 52.21; Minn. R. 7007.3000 0 Nitrogen Oxides: less than or equal to 4.0 lbs/million Btu heat input for each emission unit in GP 001 Title I Condition: To avoid classification as a major source under 40 CFR Section 52.21; Minn. R. 7007.3000 Opacity: less than or equal to 20 percent opacity once operating temperature has Minn. R. 7011.2300, subp. 1 been attained. This applies individually to each emission unit in GP 001. Sulfur Dioxide: less than or equal to 0.5 lbs/million Btu heat input (equivalent to a Minn. R. 7011.2300, subp. 2 fuel oil sulfur content of 0.49 percent by weight). This applies individually to each emission unit in GP 001. Permitted Fuel: Distillate Fuel Oil with a maximum sulfur content of 0.49 percent by Minn. R. 7007.0800, subp. 2 weight EU 014 and EU 015 Temporary Diesel Engines: The Permittee may operate Minn. R. 7007.0800, subp. 2 temporary diesel fuel-fired engines at the facility providing the Permittee follows the fuel usage recordkeeping requirements and meets all applicable emission limits and fuel requirements in this subject item. A temporary engine is any engine that is not located and/or operated at the facility for more than twelve consecutive months, and does not include emission units 002, 003, 004, 005, 006, 007, 008, 009, 010, 011, 012, or 013. MONITORING AND RECORDKEEPING hdr Recordkeeping - EU 004 and EU 005 Operating Hours: by the last day of each Title I Condition: To avoid classification as a major month, the Permittee shall separately record EU 004 and EU 005 operating hours source under 40 CFR Section 52.21; for the previous month, and separately record cumulative operating hours for EU Minn. R. 7007.0800, subps. 4 & 5; 004 and EU 005 during the current calendar year. Minn. R. 7007.3000; DEFINITION OF "TOTAL GP 001 MONTHLY FUEL USAGE" Minn. R. 7007.0800, subp. 2
'Total GP 001 Monthly Fuel Usage" is the monthly GP 001 fuel usage excluding EU 015 fuel usage when GP 001 (excluding EU 015) fuel usage is less than 60,000 gallons during the month. When GP 001 (excluding EU 015) fuel usage is equal or greater than 60,000 gallons, 'TOTAL GP 001 MONTHLY FUEL USAGE" includes EU 015 fuel usage starting the month after the calculated GP 001 (excluding EU 015) monthly fuel usage exceeds 60,000 gallons, and each month thereafter until GP 001 monthly fuel usage (excluding EU 015) drops below 60,000 gallons.
TABLE A: LIMITS AND OTHER REQUIREMENTS A-4 01/03/07 Facility Name: Xcel Energy - Prairie Island Nuclear Permit Number: 04900030 - 003 Fuel Usage Monitoring and Recordkeeping - by the last day of each month, Title I Condition: To avoid classification as a major calculate and record: source under 40 CFR Section 52.21; Minn. R. 7007.0800, subps. 4 & 5;
- 1. The Total GP 001 Monthly Fuel Usage for the previous month, and Minn. R. 7007.3000;
- 2. The GP 001 12-month rolling average fuel usage for the previous 12-months Refer to the "Total GP 001 Monthly Fuel Usage" definition above.
Fuel Supplier Certification: The Permittee shall maintain certification from the fuel Minn. R. 7007.0800, subps. 4 & 5 supplier that guarantees a maximum sulfur content in all fuel oil deliveries. The supplier will notify the Permittee in writing on the date of delivery of fuel oil with a sulfur content exceeding the guaranteed maximum. PERFORMANCE TESTING - EU 002/EU 003 hdr Performance Test: due before end of each calendar 60 months starting 10/09/2006 Title I Condition: To avoid classification as a major to measure NOx emissions from EU 002 or EU 003. Testing shall commence with source under 40 CFR Section 52.21; EU 002, and subsequently altemate between EU 002 and EU 003 at intervals not Minn. R. 7007.3000; to exceed 60 months. Minn. R.- 7017.2020, subp. 1; Minn. R. 7017.2030, subp. 4 Performance Test: due before end of each calendar 36 months starting 06/01/2004 Minn. R. 7017.2020, subp. 1; to measure opacity emissions from EU 002 or EU 003. Testing shall commence Minn. R. 7017.2030, subp. 4 with EU 002 and subsequently alternate between EU 002 and EU 003 at intervals not to exceed 36 months. PERFORMANCE TESTING - EU 004/EU 005 hdr Initial Performance Test: due 90 days after Notification of resuming operation of Title I Condition: To avoid classification as a major either EU 004 or EU 005 for more than 100 hours in any calendar year. This source under 40 CFR Section 52.21; performance test shall measure NOx emissions from EU 004 or EU 005. Minn. R. 7007.3000; Minn. R. 7017.2020, subp. 1; Minn. R. 7017.2030, subp. 4 Initial Performance Test: due 90 days after Notification of resuming operation of Minn. R. 7017.2020, subp. 1; either EU 004 or EU 005 for more than 100 hours in any calendar year. This Minn. R. 7017.2030, subp. 4 performance test shall measure opacity emissions from EU 004 or EU 005. PERFORMANCE TESTING - EU 007/EU 008 hdr Performance Test: due before end of each calendar 60 months starting 08/12/2005 Title I Condition: To avoid classification as a major to measure NOx emissions from EU 007 or EU 008. Testing shall commence with source under 40 CFR Section 52.21; EU 008, and subsequently altemate between EU 007 and EU 008 at intervals not Minn. R. 7007.3000; to exceed 60 months. Minn. R. 7017.2020, subp. 1; Minn. R. 7017.2030, subp. 4 Performance Test: due before end ofeach calendar 60 months starting 08/12/2005 Minn. R. 7017.2020, subp. 1; to measure opacity emissions from EU 007 or EU 008. Testing shall commence Minn. R. 7017.2030, subp. 4 with EU 008, and subsequently alternate between EU 007 and EU 008 at intervals not to exceed 60 months. PERFORMANCE TESTING - EU 010 & EU 01 1/EU 012 & EU 013 hdr Performance Test: due before end of each calendar 60 months starting 08/15/2005 Title I Condition: To avoid classification as a major to measure NOx emissions from an emission unit pair (EU 010 &011 or EU 012 & source under 40 CFR Section 52.21; 013) that has not been tested in the previous five years. Testing shall commence Minn. R. 7007.3000; with EU 010 & 011 and subsequently alternate between EU 010 & 011 and EU 012 Minn. R. 7017.2020, subp. 1;
& 013 at intervals not to exceed 60 months. Minn. R. 7017.2030, subp. 4 Performance Test: due before end of each calendar 60 months starting 08/15/2005 Minn. R. 7017.2020, subp. 1; to measure opacity emissions from an emission unit pair (EU 010 & 011 or EU 012 Minn. R. 7017.2030, subp. 4 & 013) that has not been tested in the previous five years. Testing shall commence with EU 010 & 011 and subsequently alternate between EU 010 & 011 and EU 012 & 013 at intervals not to exceed 60 months.
TABLE A: LIMITS AND OTHER REQUIREMENTS A-5 01/03/07 Facility Name: Xcel Energy - Prairie Island Nuclear Permit Number: 04900030 - 003 Subject Item: EU 001 Boiler I Associated Items: SV 001 Boiler 1 What to do Why to do It LIMITS AND OPERATING RESTRICTIONS hdr Fuel Usage: less than or equal to 31002 gallons/month using 12-month Rolling Title I Condition: To avoid classification as a major Average source under 40 CFR Section 52.21; Minn. R. 7007.3000 Nitrogen Oxides: less than or equal to 0.144 lbs/million Btu heat input Title I Condition: To avoid classification as a major source under 40 CFR Section 52.21; Minn. R. 7007.3000 Total Particulate Matter: less than or equal to 0.6 lbs/million Btu heat input Minn. R. 7011.0510, subp. 1 Opacity: less than or equal to 20 percent opacity except for one six-minute period Minn. R. 7011.0510, subp. 2 per hour of not more than 60 percent opacity Permitted Fuel: Distillate Fuel Oil with a maximum sulfur content of 0.49 percent by Minn. R. 7007.0800, subp. 2 weight A temporary boiler may be brought onsite for a period of up to one year, for the Minn. R. 7007.0800, subp. 2 purpose of providing steam, heat, or electric power in place of EU 001, when EU 001 is out of operation. The temporary boiler may not be operated at the same time as EU 001 except for up to eight hours during start-up and shutdown transition periods. The temporary boiler must have potential emission rates in lbs/hour for all criteria pollutants that are less than the permit emission limits and potential emission rates of EU 001. All fuel usage by any temporary boiler shall be included in the fuel usage recordkeeping required under this subject item. RECORDKEEPING hdr Fuel Usage Monitoring and Recordkeeping - by the last day of each month, Title I Condition: To avoid classification as a major calculate and record: source under 40 CFR Section 52.21; Minn. R. 7007.0800, subp. 5;
- 1. The total EU 001 fuel usage for the previous month, Minn. R. 7007.3000
- 2. The EU 001 12-month rolling average fuel usage for the previous 12-months.
Any temporary boiler fuel usage shall be included in this fuel usage recordkeeping.
TABLE B: SUBMITTALS B-1 01/03/07 Facility Name: Xcel Energy - Prairie Island Nuclear .Table Permit Number: 04900030 - 003 B lists most of the submittals required by this permit. Please note that some submittal requirements may appear in Table A or, if applicable, within a compliance schedule located in Table C. Table B is divided into two sections in order to separately list one-time only and recurrent submittal requirements. Each submittal must be postmarked or received by the date specified in the applicable Table. Those submittals required by parts 7007.0100 to 7007.1850 must be certified by a responsible official, defined in Minn. R. 7007.0100, subp. 21. Other submittals shall be certified as appropriate if certification is required by an applicable rule or permit condition. Send any application for a permit or permit amendment to: AQ Permit Technical Advisor Industrial Division Minnesota Pollution Control Agency 520 Lafayette Road North St. Paul, Minnesota 55155-4194 Also, where required by an applicable rule or permit condition, send to the Permit Technical Advisor notices of:
- accumulated insignificant activities, - installation of control equipment, - replacement of an emissions unit, and - changes that contravene a permit term.
Unless another person is identified in the applicable Table, send all other submittals to: AQ Compliance Tracking Coordinator Industrial Division Minnesota Pollution Control Agency F 520 Lafayette Road North St. Paul, Minnesota 55155-4194 Send submittals that are required to be submitted to the U.S. EPA regional office to: Mr. George Czemiak Air and Radiation Branch EPA Region V 77 West Jackson Boulevard Chicago, Illinois 60604 Send submittals that are required by the Acid Rain Program to: U.S. Environmental Protection Agency Clean Air Markets Division 1200 Pennsylvania Avenue NW (6204N) Washington, D.C. 20460 0
TABLE B: ONE TIME SUBMITTALS OR NOTIFICATIONS B-2 01/03/07 Facility Name: Xcel Energy - Prairie Island Nuclear Permit Number: 04900030 - 003 What to send When to send Portion of Facility Affected Application for Permit Reissuance due 180 days before expiration of Existing Total Facility Permit Notification due 30 days after Resuming Operation by GP001 either EU 004 or EU 005 for more than 100 hours in any calendar year. This shall be a written notification indicating that the emission unit has exceeded 100 operating hours in the calendar year. Testing Frequency Plan due 60 days after Initial Performance Test to GP001 measure NOx emissions and opacity from EU 004 and EU 005. The plan shall specify a NOx and opacity testing frequency for EU 004 and EU 005 using the test data and MPCA guidance. Future performance tests on year (12-month), 36-month, and 60-month intervals, or as applicable, shall be required on written approval of MPCA per Minn. R. 7017.2020, subp. 1. The Plan may propose that future performance tests commence with testing of the emission unit that was not tested during the initial performance test, and that testing alternate between EU 004 and EU 1005. 1 0
TABLE B: RECURRENT SUBMITTALS B-3 01/03/07 Facility Name: Xcel Energy - Prairie Island Nuclear Permit Number: 04900030 - 003 What to send When to send Portion of Facility Affected Semiannual Deviations Report due 30 days after end of each calendar Total Facility half-year starting 06/22/2000. The first semiannual report submitted by the Permittee shall cover the calendar half-year in which the permit is issued. The first report of each calendar year covers January 1 - June 30. The second report of each calendar year covers July 1 - December 31. If no deviations have occured, the Permittee shall submit the report stating no deviations. Compliance Certification due 31 days after end of each calendar year Total Facility starting 06/22/2000 (for the previous calendar year). The Certification shall be submitted on a form approved by the Commissioner, both to the Commissioner and to the U.S. EPA regional office in Chicago. This report covers all deviations experienced during the calendar year. 0
APPENDIX B Insignificant Activities and Applicable Requirements Facility Name: Xcel Energy - Prairie Island Nuclear Generating Plant Permit Number: 04900030-003 Under Minn. R. 7007.1250, subp. 1(A), the Permittee may add insignificant activities to the stationary source throughout the term of the permit without getting permit amendments. Certain exclusions apply and are listed in Minn. R. 7007.1250, subp. 2. The following sources at the Permittee's facility qualify as insignificant activities under Minn. R. 7007.1300, subps. 3 and 4 and are not required to be listed in the permit. Minn. R. General Applicable 7007.1300, Rule Description of the Activity Reqem e subp. Requirement 3(A) Space heaters fueled by kerosene, natural gas, or propane Minn. R. 7011.0515 3(G) Emissions from laboratories Minn. R. 7011.0515 3(H)(3) Brazing, soldering, and welding equipment Minn. R. 7011.0515; Minn. R. 7011.0610; Minn. R. 7011.0715 3(H)(4) Blueprint copiers and photographic processes Minn. R. 7011.0110 3(J) Fugitive dust from unpaved plant entrance roads and parking Minn. R. 7011.0150 lots 3(K) Infrequent use of spray paint equipment for routine Minn. R. 7011.0715 housekeeping or plant upkeep activities not associated with primary production processes at the stationary source, such as spray painting of buildings, machinery, vehicles, and other supporting equipment 4 - Internal combustion engines burning distillate oil, gasoline, Minn. R. 7011.0715 natural gas, or propane
- VOC fugitives from pumps, valves, flanges on fuel oil tanks
- VOC fugitive emissions from parts washers
- Sandblasting
- Small propane fired furnaces and generators
- Gluing equipment
- Various oil tanks; combined tankage approximately 343,000 gallons
TECHNICAL SUPPORT DOCUMENT For AIR EMISSION PERMIT NO. 04900030-003 This Technical Support Document (TSD)is intended for all parties interested in the permit and to meet the requirements that have been set forth by the federal and state regulations (40 CFR § 70.7(a)(5) and Minn. R. 7007.0850, subp. 1). The purpose of this document is to provide the legal and factual justification for each applicable requirement or policy decision considered in the determination to issue the permit.
- 1. General Information 1.1, Applicant and Stationary Source Location Stationary Source/Address Corporate/Company Owner (SIC Code: 4911) Corporate/CompanyOwner 1717 Wakonade Drive East Northern States Power Company, doing business as Welch, MN 55089 Xcel Energy (Xcel Energy)
Goodhue County Contact: John K. Chelstrom 414 Nicollet Mall (Environmental Services Dept.) Phone: 612-330-7682 Minneapolis, MN 55401 1.2 Description of the Facility This air emission facility is part of the Northern States Power Prairie Island Nuclear Generating Plant. This facility generates 1076 MW of electricity. The air emission facility is composed of one distillate oil-fired heating boiler and 12 diesel-fired engines for emergencies, to generate power, pump cooling water, or pump water for fire fighting. The generators and water pumps are required by the U.S. Nuclear Regulatory Commission. 1.3 Description of any Changes Allowed with this Permit Issuance This reissuance includes a major amendment to increase the NO, limit for each diesel engine from 3.35 to 4.0 lbs/mmBTU heat input to allow for some cushion for stack testing the larger diesel engines. As a result, the fuel usage limit will be decreased from 83955 to 70238 gallons/month. This is a Title I condition emission limit to restrict facility NO, potential emissions to less than the major source level of 250 tons/year. Other changes made through this permit action Updated standard language for any outdated requirements Total Facility - added performance testing requirements to total facility level GP 001 - updated performance testing requirements based on most recent tests EU 001 - Removed performance testing requirements Note: All performance tests were reviewed and accounted for up to 10/27/06. O Technical Support Document, Permit Action Number: 04900030-003 Page 1 of 8 Date: 3/13/2007
1.4 Permit History Permit Number and Action Authorized Issuance Date 04900030-002 (6/3/03) Changed requirement to submit modeling protocol and results to a requirement to submit modeling information 04900030-001 (6/22/00) Part 70 Total Facility Permit issuance 1.5 Facility Emissions Table 1. Total Facility Potential to Emit Summary PM PM1 0 S02 NO,, CO VOC All HAPs (tpy) (tpy) (tpy) (tpy) (tpy) (tpy) (tpy) Total Facility Potential (1.2) (1.2) (5.8) 0 (9.8) (1.0) (0.02) Emissions Increases Total Facility Limited 6.3 6.6 42.7 239.7 51.0 5.4 0.1 Potential Emissions Total Facility Actual 1076 391 0.8 HAPs not reported in Emissions (2004) 0.33 0.27 0.18 emission inventory Table 2. Facility Classification I Classification Major/Affected Source Synthetic Minor Minor I I PSD NO,,, CO, SO2 PM 10, PM, VOC Part 70 Permit Program NO, CO, S02, PM 10 VOC Part 63 NESHAP .... Single and Total HAP Technical Support Document, Permit Action Number: 04900030-003 0 Page 2 of 8 Date: 3/13/2007
- 2. Regulatory and/or Statutory Basis New Source Review The facility has limits to keep it a synthetic minor source under New Source Review regulations. No changes are authorized by this permit.
Part 70 Permit Program The facility is a major source under the Part 70 permit program. New Source Performance Standards (NSPS) There are no New Source Performance Standards applicable to the operations at this facility. National Emission Standards for Hazardous Air Pollutants (NESHAP) The facility is a minor source for HAPs under 40 CFR pt. 63. Thus, no NESHAPs apply. Minnesota State Rules Portions of the facility are subject to the following Minnesota Standards of Performance:
- Minn. R. 7011.0510 Standards of Performance for Existing Indirect Heating Equipment
" Minn. R. 7011.2300 Standards of Performance for Stationary Internal Combustion Engines Table 3. Regulatory Overview of Units Affected by the Permit Amendment Unit Applicable Regulations Comments:
Total 40 CFR pt. 50; Minn. R. Added NAAQS requirement Facility 7009.0100 to 7009.0080 GP 001 Title I limits to avoid PSD; Increased NO, limit to 4.0 lbs/mm BTU heat input for each emission Internal Minn. R. 7007.0800, subp. 2 unit Combustion Decreased Fuel Usage to 70,238 gallons/month Engines Minn. R. 7017.2020, subp. I Updated Performance Testing requirements based off most recent tests conducted EU 001 Minn. R. 7017.2020, subp. I Removed Performance Testing requirements based off most recent Boiler I tests conducted and very low run times. (6.1 hr in 2005, 25.1 in 2004) This is a backup facility heating boiler, only would be needed if both nuclear generators were down at the same time during the winter heating season. Operating hours for this unit over the last 5 years have been solely for exercising the unit and performance testing. V Technical Support Document, Permit Action Number: 04900030-003 Page 3 of 8 Date: 3/13/2007
- 3. Technical Information 3.1 Periodic Monitoring In accordance with the Clean Air Act, it is the responsibility of the owner or operator of a facility to have sufficient knowledge of the facility to certify that the facility is in compliance with all applicable requirements.
In evaluating the monitoring included in the permit, the MPCA considers the following:
- The likelihood of violating the applicable requirements;
- Whether add-on controls are necessary to meet the emission limits;
" The variability of emissions over time;
- The type of monitoring, process, maintenance, or control equipment data already available for the emission unit;
- The technical and economic feasibility of possible periodic monitoring methods; and
- The kind of monitoring found on similar units elsewhere.
Table 4 summarizes the periodic monitoring requirements for those emission units for which the monitoring required by the applicable requirement are different or new from the previous permit. All other monitoring requirements are still applicable Table 4. Periodic Monitoring Emission Additional Unit or 'Requirement (basis) Monitoring Discussion Group GP 001 Operating Hours for Recordkeeping Records to show that hours of operation Internal EU 004 and EU 005 were less than 100 hours for the year. Combustion When over 100 hours, an Initial Engines Performance Test is required, then a Testing Frequency Plan, which will make this requirement obsolete. 12 month rolling Recordkeeping Records to show compliance with fuel average fuel limit usage limit Technical Support Document, Permit Action Number: 04900030-003 Page 4 of 8 Date: 3/13/2007
3.2 Calculations of Potential to Emit to this TSD contains the PTE calculations, which summarizes the PTE of the Facility. Emission Factors were obtained from AP-42 Chapters 1.3 and 3.4. 3.3 Insignificant Activities Xcei Energy - Prairie Island Nuclear has several operations which are classified as insignificant activities. These are listed in Appendix B to the permit. 3.4 Permit Organization In general, the permit meets the MPCA Delta Guidance for ordering and grouping of requirements. One area where this permit deviates slightly from Delta guidance is in the use of appendices. While appendices are fully enforceable parts of the permit, in general, any requirement that the MPCA thinks should be tracked (e.g., limits, submittals, etc.), should be in Table A or B. The main reason is that the appendices are word processing sections and are not part of the tracking system. Violation of the appendices can be enforced, but the computer system will not automatically generate the necessary enforcement notices or documents. Staff must generate these. 3.5 Comments Received Public Notice Period: November 15, 2006 - December 14, 2006 EPA 45-day Review Period: November 15, 2006 - December 29, 2006 No comments were received during the review periods.
- 4. Conclusion Based on the information provided by Xcel Energy - Prairie Island Nuclear, the MPCA has reasonable assurance that the operation of the emission facility, as described in the Air Emission Permit No.
04900030-003, and this TSD, will not cause or contribute to a violation of applicable federal regulations and Minnesota Rules. Staff Members on Permit Team: Trevor Shearen (permit writer/engineer) Emily Hansen (enforcement) Steve Gorg (stack testing) Marshall Cole (peer reviewer)
Attachment:
I. Total Facility PTE Summary Technical Support Document, Permit Action Number: 04900030-003 Page 5 of 8 Date: 3/13/2007
ATTACHMENT 1: Total Facility PTE Summary Table 5. Total Facility PTE EU 001' GP 0012 Total Facility Pollutant PTE Current PTE Limited PTE Current PTE3 Limited PTE4 (ton/yr) (ton/yr) (ton/yr) (ton/yr) (ton/yr) NO. 3.67 236.2 236.0 239.9 239.7 SO,, 13.21 35.3 29.5 48.5 42.7 CO 0.93 59.9 50.1 60.9 51.1 PM 0.37 7.05 5.90 7.42 6.27 PM 10 0.37 7.05 5.90 7.42 6.27 Total VOC 0.05 6.35 5.31 6.39 5.36 Total HAPs 0.009 Q.105 0.088 0.11 0.10 [i] EU 001 (ton/yr) from Table 6 [2] GP 001 (ton/yr) from Table 7 13] Total Facility Current PTE (ton/yr) = EU 001 PTE (ton/yr) + GP 001 Current PTE (ton/yr) [4] Total Facility Limited PTE (ton/yr) = EU 001 PTE (ton/yr) + GP 001 Limited PTE (ton/yr) Technical Support Document, Permit Action Number: 04900030-003 Page 6 of 8 Date: 3/13/2007
Table 6. EU 001 - Heating Boiler Emission Uncontrolled Limited Actual Pollutant Factor PTE' PTE 2 Emissions 3 (lb/gal) (ton/yr) (ton/yr) (ton/yr) NO, 0.0197 [15] 34.13 3.67 0.006 SO, 0.0710 [11] 122.84 13.21 0.022 CO 0.0050 [11] 8.65 0.93 0.002 PM 0.0020 [11] 3.46 0.37 0.001 PM 1 0 0.0020 [11] 3.46 0.37 0.001 Total VOC 0.0003 [12] 0.44 0.05 0.000 Benzene 2.14E-07 [13] 3.70E-04 3.98E-05 6.53E-08 Ethylbenzene 6.36E-08 [13] 1.10E-04 1.18E-05 1.94E-08 Formaldehyde 3.30E-05 [13] 5.71E-02 6.14E-03 1.01E-05 Naphthalene 1.13E-06 [13] 1.96E-03 2.10E-04 3.45E-07 1,1,1 Trichloroethane 2.36E-07 [13] 4.08E-04 4.39E-05 7.20E-08 Toluene 6.20E-06 [13] 1.07E-02 1.15E-03 1.89E-06 Xylenes 1.09E-07 [13] 1.89E-04 2.03E-05 3.32E-08 Arsenic 5.48E-07 [14] 9.48E-04 1.02E-04 1.67E-07 Beryllium 4.11 E-07 [14] 7.11 E-04 7.65E-05 1.25E-07 Cadmium 4.11 E-07 [14] 7.11 E-04 7.65E-05 1.25E-07 Chromium 4.11E-07 [14] 7.11E-04 7.65E-05 1.25E-07 Copper 8.22E-07 [14] 1.42E-03 1.53E-04 2.5 1E-07 Lead 1.23E-06 [14] 2.13E-03 2.29E-04 3.76E-07 Manganese 8.22E-07 [14] 1.42E-03 1.53E-04 2.51E-07 Mercury 4.11 E-07 [14] 7.11 E-04 7.65E-05 1.25E-07 Nickel 4.11 E-07 [14] 7.1 IE-04 7.65E-05 1.25E-07 r Selenium 2.06E-06 [14] 3.56E-03 3.82E-04 6.27E-07 Zinc 5.48E-07 [14] 9.48E-04 1.02E-04 1.67E-07 Total HAPs 8.48E-02 9.12E-03 1.50E-05 Max Process Rate 395 gal/hr Monthly Fuel Limit 31002 gal/mo 2005 Actual Fuel Use 610 gal/yr [P] Uncontrolled PTE (ton/yr) = Emission Factor (lb/gal) x Max Process Rate x 8760 (hr/yr) / 2000 (lb/ton) [21 Limited PTE (ton/yr) = Emission Factor (lb/gal) x Monthly Fuel Limit (gal/month) x 12 (month/yr) / 2000 (lb/ton) [31 Actual Emissions (ton/yr) = Emission Factor (lb/gal) x 2005 Actual Fuel Use (gal/yr) / 2000 (lb/ton) [III AP-42 Table 1.3-1 (9/98) [12] AP-42 Table 1.3-3 (9/98) [131 AP-42 Table 1.3-9 (9/98) [141 AP-42 Table 1.3-10 (9/98): (lb/gal)= (Ib/MM Btu) x (0.137 MM Btu/gal) [151 Stack test Technical Support Document, Permit Action Number: 04900030-003 Page 7 of 8 Date: 3/13/2007
Table 7. GP 001 - Internal Combustion Engines Emission Current Proposed Actual Pollutant Factor Limited PTE' Limited PTE2 Emissions 3 (lb/MMBtu) (ton/yr) (ton/yr) (ton/Sr) NOx (current) 3.35 [11] 236.2 N/A 17.4 (proposed) 4.00 [12] N/A 236.0 20.8 SO'. 0.50 [13] 35.26 29.50 2.60 CO 0.85 [14] 59.94 50.15 4.43 PM 0.10 [14] 7.05 5.90 0.52 PM 10 0.1ý0 [14] 7.05 5.90 0.52 Total VOC 0.09 [14] 6.35 5.31 0.47 Acetaldehyde 2.52E-05 [15] 1.78E-03 1.49E-03 1.31E-04 Acrolein 7.88E-06 [15] 5.56E-04 4.65E-04 4.1OE-05 Benzene 7.76E-04 [15] 5.47E-02 4.58E-02 4.04E-03 Formaldehyde 7.89E-05 [15] 5.56E-03 4.66E-03 4.11 E-04 Naphthalene 1.30E-04 [16] 9.17E-03 7.67E-03 6.77E-04 Toluene 2.81E-04 [15] 1.98E-02 1.66E-02 1.46E-03 Xylenes 1.93E-04 [15] 1.36E-02 1.14E-02 1.01E-03 Total HAPs 1.05E-01 8.80E-02 7.77E-03 Current Fuel Usage Limit 83955 gal/month Proposed Fuel Usage Limit 70238 gal/month 2005 Actual Rolling Average Fuel Use 6200 gal/month Distillate Oil Heat Content 0.14 MM Btu/gal [I] Current Limited PTE (ton/yr) = Emission Factor (lb/MM Btu) x Distillate Oil Heat Content (MM Btu/gal) x Current Fuel Usage Limit (gal/month) x 12 (month/yr) / 2000 (lb/ton) [2] Proposed Limited PTE (ton/yr) = Emission Factor (lb/MM Btu) x Distillate Oil Heat Content (MM Btu/gal) x Proposed Fuel Usage Limit (gal/month) x 12 (month/yr) / 2000 (lb/ton) [3] Actual Emissions (ton/yr) = Emission Factor (lb/MM Btu) x Distillate Oil Heat Content (MM Btu/gal) x 2005 Actual Rolling Average Fuel Use (gal/month) x 12 (month/yr) / 2000 (lb/ton) [1I] Current Limit [12] Proposed Limit [13] Distillate Oil Limit [14] AP-42, 10/96, Table 3.4-1 [15] AP-42, 10/96, Table 3.4-3 [16] AP-42, 10/96, Table 3.4-4 Technical Support Document, Permit Action Number: 04900030-003 0 Page 8 of 8 Date: 3/13/2007
Climate of Minnesota Introduction This publication consists of a narrative that describes some of the principal climatic features and a number of climatological summaries for stations in various geographic regions of the State. The detailed information presented should be sufficient for general use; however, some users may require additional information. The National Climatic Data Center (NCDC) located in Asheville, North Carolina is authorized to perform special services for other government agencies and for private clients at the expense of the requester. The amount charged in all cases is intended to solely defray the expenses incurred by the government in satisfying such specific requests to the best of its ability. It is essential that requesters furnish the NCDC with a precise statement describing the problem so that a mutual understanding of the specifications is reached. Unpublished climatological summaries have been prepared for a wide variety of users to fit specific applications. These include wind and temperature studies at airports, heating and cooling degree day information for energy studies, and many others. Tabulations produced as by-products of major products often contain information useful for unrelated special problems. The Means and Extremes of meteorological variables in the Climatography of the U.S. No.20 series are recorded by observers in the cooperative network. The Normals, Means and Extremes in the Local Climatological Data, annuals are computed from observations taken primarily at airports. The editor of this publication expresses his thanks to those State Climatologists, who, over the years, have made significant and lasting contributions toward the development of this very useful series. State and Station Normals are available at: http://cdo.ncdc.noaa.gov/cgi-bin/climatenormals/climatenormals.pl Visit our Web Site for other weather data: www.ncdc.noaa.gov Non-Subscription Request: Hard Copy Subscription Request: Climate Services Branch NCDC Subscripting Service Center National Climatic Data Center 310 State Route 956 151 Patton Avenue Building 300 Asheville, North Carolina 28801-5001 Rocket Center, West Virginia 26726 Telephone: 828-271-4800 Toll-Free Telephone: Facsimile: 828-271-4876 866-742-3322 E-mail: ncdc.orders(,noaa.gov TDD: 828-271-4010
Climate of Minnesota Topographic Features- The State of Minnesota covers 84,068 square miles. There are 11,842 lakes greater than 10 acres. The State's jurisdiction covers 2,546 square miles of Lake Superior. Minnesota extends about 400 miles south to north between latitudes 43.5 and 490 North, and averages 275 miles east to west between longitudes 89.5 and 970 West. Elevations are less than 1,200 feet near each of the three major rivers, the: Red, Minnesota and Mississippi (except in the northern part). There are three areas where elevations are greater than 1,600 feet: the Iron Range, paralleling the north shore of Lake Superior; the Coteau Des Prairies (also known as Buffalo Ridge), extending out of South Dakota across the southwest portion of the State; and a small area in the Lake Itasca region. The highest point above sea level, Eagle Mountain, in the extreme northeast portion of the State, is 2,301 feet, and the lowest is 602 feet along the shores of Lake Superior.,. Minnesota can be considered to have a continental divide in three directions: drainage is toward Hudson Bay to the north; toward the Atlantic Ocean to the east; and toward the Gulf of Mexico to the south. Temperature- Minnesota has a continental-type climate and is subject to frequent outbreaks of continental polar air throughout the year, with occasional Arctic outbreaks during the cold season. Occasional periods of prolonged heat occur during summer, particularly in the southern) portion of Minnesota, when warm air pushes northward from the Gulf of Mexico and the southwestern United States. Pacific Ocean air masses that move across the Western United States produce comparatively mild and dry weather at all seasons. Mean annual temperatures range from 36 degrees Fahrenheit (0 F) in the extreme north to 49 degrees along the Mississippi River in the southeast. State temperature extremes range from 760 to 114 0 F. Monthly mean temperatures vary from 85 in. the southWest to -I 1' F in the northwest. Mean temperatures during January in the northern portions of the State average near 4' F; this is 10 degrees colder than temperatures recorded at stations near Lake Superior and in southern Minnesota. The mean temperature in July for the State averages about 700 F in most places but this is five to 10 degrees warmer than at stations near Lake Superior. Thus, Lake Superior stations-are cool in summer and relatively warm in winter. Dew point temperatures in most areas range from a high of 70' 'F in July to a low of 6 in January. However, the dew point temperatures average about five to 10 degrees lower in the extreme northern portion of the State at all seasons.
Precipitation- Although the total precipitation is important, its distribution during the growing season is even more significant. For the most part, native vegetation grows for seven months (April to October) and row crops grow for five months (May through September). During the latter five-month period, approximately two-thirds of the annual precipitation occurs. Mean annual precipitation is 35 inches in extreme southeast Minnesota, an amount that gradually decreases to 19 inches in the extreme northwest portion of the State. At most locations there have been months with.no precipitation recorded. Statewide, two' of the driestyears Were 1910. and 1976, while two of the wettest were 1965 and 1977. Seasonal snowfall averages near 70 inches in the highlands along the north shore of Lake Superior in northeast Minnesota, gradually decreases to 40 inches along the Iowa border in the south, and is around 40 inches along the North Dakota and South Dakota borders in the west. Snow cover of one inch or more over the State occurs on an average of about 110 days annually, ranging from 85 days in the south to 140 days in the north. Heavy snowfalls of greater than 4 inches are common any time from mid-November through mid-April. Heavy snowfalls with blizzard conditions affect the State on the average about two times each winter. The most devastating blizzards were. those of January II - 13, 1888, and of November 11 - 12, 1940, which resulted in the loss of many lives and a heavytoll of livestock. Blizzard conditions are when visibilities are reduced to less than /4mile for several hours due, to falling and/or blowing snow. The wind must be at least 35 mph. Another memorable blizzard occurred on October 31, 1991 and is known as the "Halloween Blizzard". The Twin Cities received 28.4 inches of snow from this storm which lasted until November 3. Conditions of severe drought with an annual Palmer Drought Index of-3 or lower are expected on the average about once in 10 years in southwest and west central Minnesota; to about once in 25 years over eastern Minnesota. The northeast part of the state experiences severe drought about once in 50 years. Thunderstorms generally cause more damage to property in Minnesota than any other weather factor. The annual frequency of thunderstorm days is about 45 days in southern Minnesota, decreasing to about 30 days along the Canadian border. Generally, 80 percent or more of these storms occur during the heavier rainfall months--from May through September. Damaging local windstorms, tornadoes, hail, and heavy rains sometimes occur with better-developed thunderstorms. The "tornado month" in the State is June, with July next, and then May. During these three months, over 75 percent of all tornadoes occur; May has about 17 percent, June around 33 percent, and July approximately 28 percent. Tornadoes have never been reported in the State during December, January and February. The average number reported annually-is 35. The southern half of Minnesota has three to four times as many tornadoes as the northern half of the State. The deadliest Minnesota tornado of record was the Saint Cloud-Sauk Rapids tornado on April 14, 1886, when 74 lives were lost. The most damaging tornadoes were those occurring in the northern part of Minneapolis in the late afternoon of May 6, J965, causing about $280 million (2001 figure) in damage.
The frequency of hail shows a high of three to four days annually in southwestern Minnesota, decreasing to near two days in the northern portion of the State. The month with the most hail is June, with May next, and then July. During these three months, about 60 percent of the hail occurs; June has 24 percent, May has 20 percent and July has 16 percent. The size of the hail reported is generally in the pea to dime-sized category, with several reports annually of baseball-
- sizeand larger.
Freezing rain and glaze storms are not numerous, but do coat the roads several times each season in Minnesota. The more severe ice storms cause extensive damage to utility lines and trees; such storms are not as common in the northern part of the State as they are in the south and southeast portions. Local flash flooding can be very destructive along the steep bluffs of Lake Superior and the hilly terrain and narrow valleys of southeast Minnesota; however, flash flooding can occur anywhere in Minnesota. Flash flooding (defined as a six inches or more rain in 24 hours) occurs on average, three times a year somewhere in the state. The agricultural areas of Minnesota can be divided into three approximately equal parts: national and State forest land, farmlands for row crops, and farmlands for pasture and hay. Corn is the major crop by acreage, followed by about equal acreages of: hay, oats and soybeans. Farm income from marketing shows that about two-thirds of the total comes from livestock and with one-third from field crops. The freeze-free (air temperatures greater than 320 F) growing season generally starts about the second week of May in the south and the first of June in the north and ends about mid-September in the north and during the first week of October in the south. The area in southeast Minnesota along the Mississippi River has the longest growing season, approximately 160 days. The southern one-third of the State averages from 140 to 150 days. The North Central Division and the ridges of the Iron Range average a growing season of only about 90 to 100 days. There are bog areas. in northern Minnesota that have, reported freezing temperatures every month of the year. The average number of Growing Degree Days (GDD) over the freeze-free growing season for agricultural areas is less than 2,000 in the north, but ranges to near 2,700 GDD in the south (The GDD is derived from the excess of daily mean temperatures Over 5.00 F; minimum. temperatures cannot fall below 50.nor can maximum temperatures rise above 86 for computational purposes.) Annual lake evaporation varies from 35 inches in a year in the Southwest to about 20 inches in Northeast Division. Annual pan evaporation varies from about 50 inches in ayear in the southwest to less than 30 inches in the northeast. The actual daily evapotranspiration (evaporation from land and plant surfaces) or ET averages about 0. 15 inch of water during the months of June, July and August for all of the State except the North Centraland Northeast Divisions. Row crops average approximately 20 inches of ET in a year; however, the average annual potential ET (adequate soil moisture at all times) is near 24 inches. Solar radiation varies from an average of about 120 langleys a day in December to near 570 langleys a day in July. (The langley is a unit of energy per unit area commonly employed in
radiation theory; it is equal to one gram-calorie per square centimeter.) Sunshine amounts vary from a low in November of nearly 40 percent of possible sunshine hours to a high of about 70 percent in July, with an annual average of 58 percent. The daylight length varies from about 8.5 hours in December to 16 hours in June. The soil freezes about the first week of December and thaws about mid-April. Average maximum freeze depth in the State ranges from three to four feet in the south to five to six feet in the north, exclusive of forested regions where the freezing depth is ordinarily much shallower. Climate and the Economy- Minnesota climate, in conjunction with some 15,000 lakes interspersed in forests and wooded areas, produces an almost ideal environment for variety of recreational activities. The summer season (May through August), with its warm days and cool nights, attracts summer vacationers. Common activities are camping, fishing, swimming, boating, canoeing and hiking. The recreational activity in the fall season (September through November) is dominated by the hunters. Deer, moose, pheasant, duck, geese, grouse and occasionally bear are the principal targets. For the non-hunters, autumn is beautiful for the annual change of the summer leaves to hues of yellow, orange and red. The winter season (December through March) has sufficient snowfalls and low temperatures to maintain conditions for skiing, snowmobiling, skating (hockey) and ice fishing. The transition season is the month of April when the snow and ice melt. A special recreational area in northern Minnesota has been set aside and regulated for canoeing only. This area: known as the Boundary Water Canoe Area, is a 110-mile canoe region that extends along the Canadian border and into Canada. There are also 72 state parks and numerous other camping facilities that offer camping and recreation. For more information, please contact: State Climatology Office DNR-Waters www.climate.umn.edu
Climate of Minnesota - Wikipedia,,the free encyclopedia Page 1 of 16 0 Climate of peple like you. Please donate today. From Wikipedia, the free encyclopedia The climate of Minnesota is typical of a continental climate with cold winters and hot summers. The state's
- location in the Upper Midwest allows it to experience some of the widest variety of weather in the United States, with each of the four seasons having its own distinct characteristics. The areas near Lake Superior in the Minnesota Arrowhead region experience weather unique from the rest of the state. The moderating
.effect of Lake Superior keeps the surrounding area relatively cooler in the summer and relatively warner in the winter, giving that region more of a maritime climate. On the K6ppen climate classification, the southern half of Minnesota, roughly from the Twin Cities region southward, falls in the warn summer humid continental climate zone (Dfa), and the northern two-thirds of Minnesota falls in the cool summer humid continental climate zone (Dib).
Winter in Minnesota is characterized by cold (below freezing) temperatures and snowfall. Snow is the main
*form of winter precipitation, but freezing rain, ice, sleet, and sometimes even rain are all possible during the winter months. Common storm systems include Alberta clippers or Panhandle hooks, some of which evolve into blizzards. Annual snowfall extremes have ranged from over 170 inches (432 cm) in the rugged Superior Highlands of the North Shore to as little as 10 inches (25 cm) in southern Minnesota. Temperatures as low On March 29, 1881 snowdrifts as -60 'F (-51 'C) have occurred during Minnesota winters. Spring is a time of major transition in in western Minnesota were larger than locomotives. *Minnesota. Snowstorms are common in early spring, but by late spring as temperatures begin to moderate the state can experience tornado outbreaks, a risk which diminishes but does not cease through the summer and into the fall.
In summer, heat and humidity predominate in the South, while warm and less humid conditions are generally present in the north. These humid conditions help kick-off thunderstorn activity 30-40 days per year. Summer high temperatures in Minnesota average in the mid 80s (30 'C) in the south to the upper 70s (25 'C) in the north, with temperatures as hot as 114 'F (46 'C) possible. The growing season in Minnesota varies-from 90 days per year in the Iron Range to 160 days in southeast Minnesota. Tornadoes are possible in Minnesota from March through-November, but the peak tornado month is June, followed by July, May, and August. The. state averages 24 tornadoes per year. Minnesota is the driest state in the Midwest. Average annual precipitation across the state ranges from around 35 inches (890mm) in the southeast to just 20. inches (510 mm) in the northwest. Autumn weather in Minnesota is largely the reverse of spring weather. The jet stream, which tends to weaken in summer, begins to re-strengthen, leading to a quicker changing of weather patterns and an increased variability of temperatures. By late October and November these storm systems become strong enough to form major winter storms. Fall and spring are the windiest. times of the year in Minnesota. http://en.Wikipedia.Org/wiki/Climate of Minnesota -8/1,8/20.08
Climate of Minnesota - Wikipedia, the free encyclopedia Page 2 of 16 O Contents
- 1 General climatology a 1.1 Lake Superior m 1.2 Statistics m 1.2.1 Temperature m 1.2.2 Precipitation
- 2 Winter
- 2.1 Temperature m 2.2 Precipitation m 2.2.1 Alberta Clippers n 2.2.2 Panhandle Hooks
- 3 Spring m 3.1 Wind a 3.2 Floods
- 4 Summer w 4.1 Temperature
- 4.2 Precipitation
- 4.2.1 Droughts
- 4.2.2 Tornadoes
- 5 Fall
- 6 Image and popular culture
- 7 See also
- 8 References
- 9 External links General climatology Because of its location in the center of North America Minnesota experiences temperature extremes characteristic of a continental climate, with cold winters and mild to hot summers in the south and frigid
.winters and: generally cool summers in the north.'1] Each season has distinctive upper air patterns which bring different weather conditions with them. Being 1,000 miles (1,609 kin) from any large body of water (with the exception of Lake Superior), temperatures and precipitation in Minnesota can vary widely. Minnesota is far enough north to experience -60 'F (-51 'C) temperatures and blizzards during the winter months, but far enough south to experience 114 'F (46 'C) temperatures and tornado outbreaks in the summer. [2 The. 174 degree Fahrenheit (97 'C) variation between Minnesota's highest and lowest temperature is the .1 th largest http://en.wvikipedia.org/wiki/Climate Of Minnesota .8/18/2008
C a e of Minnesota - Wikipedia, the free encyclopedia Page 3 of 16 is variation of any U.S. state, and 3 rd largest of any non-mountainous state (behind North Dakota and South Dakota).[3] Minnesota is far from major sources of moisture and is in the transition zone between the moist East and the arid Great Plains. Annual average precipitation across the state ranges from around 35 inches (890 mm) in the southeast to 20 inches (510 mm) in the northwest. [41 Snow is the main foirn of precipitation from November through March, while rain is the most common the rest of the year. Annual snowfall extremes have ranged from over 170 inches (432 cm) in the rugged Superior Highlands of the North Shore to as little as 2.3 inches (5.8 cm) in southern Minnesota.[51 ] [6] It has snowed in Minnesota during every month with the71 The average daily temperature exception of July, and the state averages 110 days per year with snow cover of an inch (2.5 cm) or greater.[ of Minneapolis, Minnesota varies from 13 OF (-11 °C) to On the Kdppen climate classification, the southern half of Minnesota, roughly from the Twin Cities region 73 OF (-10 OC to 23 OC). southward, falls in the warm summer humid continental climate zone (Dfa), and the northern two-thirds of Minnesota falls in the cool summer humid continental climate zone (Djb). Lake Superior Lake Superior moderates the climate of those parts of Minnesota's Arrowhead Region near the shore. The lake acts as a heat sink, keeping the state's North Shore area relatively cooler in the summer and warmer in the winter.[9J While this effect is marked near the lake, it does not reach very far inland. For example, Grand Marais on the lakeshore has an average July high temperature of 70 'F (21 'C), while Virginia, at about the same latitude but inland about 100 miles (161 kin) to the west, has an average July high of 77 'F (25 'C). Conversely, Virginia's average high temperature in January is 15 'F (-9 'C), while Grand Marais' is 23 -F (-5 QC).[l0] Just a few miles inland from Lake Superior are the Sawtooth Mountains, which largely confine the marine air masses and associated precipitation to lowers elevation near the lake. 1 1] The cool, moist air near Lake Superior makes fog a frequent The prevailing northwest winter winds also limit the lake's influence. Places near the shoreline can receive occurrence near the shore.t 8] lake-effect snow, but because the state lies north and west of the lake, snowfall amounts are not nearly as large as they are in locations like Wisconsin and Michigan that lie downwind to the south.[ 8 ] Even so, the single largest snowstorm in Minnesota history was a lake effect event. On January 6, 1994 Finland, Minnesota, received 36 inches (91 cm) of lake effect snow in 24 hours, and 47 inches (119 cm) over a three day period. Both are Minnesota records. At 85 inches (216 cm) per year, the port city of Duluth has the highest average snowfall total of any city in Minnesota.[ 121 At 58.9 °F 13] (14.9 'C), Grand Marais has the lowest average summer temperature of any city in the state.[ The climatological effects of Lake Superior tend to stifle convection, thus limiting the potential for tornadoes.) 71 Althouah Cook and Lake http://en.wikipedia.org/wiki/Climate of Minnesota 8/18/2008
0 Climate of Minnesota - Wikipedia, the free encyclopedia 0 Page 4 of 16 counties are two of the largest counties in the state, theyhave experienced only 7 tornadoes in the past 56 years.[14] One of those tornadoes was a large F3 that occunred in the 1969 Minnesota tornado outbreak. Statistics. Temperature Average Temperatures in Minnesota in 'Fahrenheit ( *Celsius)
-Jan Feb Mar Apr May Jun Jul Aug Sept Oct Nov Dee Annual Alexandria1 ' 5 8 (-13) 15 (-9) 27(-3) 43 (6) 56 (13) 65 (18) 70 (21) 68 (20) 58 (14) 45 (7) 28(-2) 14 (-10) 41 (5) 42 (6) 56 (13) 64 (18) 69 (21) 66(19) 56 (13) 44 (7) 28(-2) 13 (-11) 40 (4)
Brainerd 161* 6 (-14) 13 (-I1) 26(-3) Duluth 1l71 10(-12) 17(-8) 26 (-3) 39(4) 48 (9) 58 (14) 66 (19) 65 (18) 56 (13) 45 (7) 31 (-1) 17 (-8) 40 (4) Grand Marais118 1 14 (-10) 19(-7) 28 (-2) 38(3) 47 (8) 53 (12) 61 (16) 63 (17) 55 (13) 45 (7) 32 (0) 19 (-7) 39(4) International Falls1191 3 (-16) 11 (-12) 24 (-4) 39(4) '53 (12) 62 (17) 66(19) 64 (18) 53 (12) 42 (6) 24 (-4) 9(-13) 37(3) Redwood FaIls1 20 1 13 (-11) 20 (-7) 32(-0) 47(8) 60 (16) 70(21) 74 (23) 71 (22) 62 (17) 49 (9) 32 (0) 18 (-8) 46 (8) 121 56 (13) 64 (18) 69 (21) 67 (19) 56 (13) 24 (-4) 9 (-13) Thief River Falis 1 3 (-16) 11(-12) 24 (-4) 42 (6) 44 (7) 39(4) Twin Cities 1 122 13 (-11). 20 (-7) 32(0) 47 (8) 59 (15) 68 (20) 73 (23) 71 (22) 61 (16) 49 (9) 32 (0) 19(-7) 45 (7) Winona1 23 1 18 (-8) 24 (-4) 36(2) 50 (10) 62 (17) 71 (22) 76 (24) 73 (23) 64 (18) 52(11) 37(3) 23 (-5) 49 (9) Worthinuton12 41 11 (-12) 18 (-8) 29 (-2) 44 (7) 57 (14) 67 (19) 71 (22) 68 (20) 59 (15) 47(8) 30(-1) 17 (-8) 43 (6) Precipitation Average Precipitation in Minnesota in inches (millimetres) Jan Feb Mar Apr May Jun Jul Aug Sept Oct .Nov Dec Annual Alexandriall51 1.0 (25) 0.7(18) 15 (38) 1.9 (48) 3.0 (76) 4.4.(112) 3.3 (84) 3.6(91) 2.7 (69) 2.2 (56) 1.2 (30) 0.6 (15) 26.0 (660) 1 0.8 (20) 0.6 (15) 1.5 (38) 2.0 (51) 3.3 (84) 4.2 (107) 4.1 (104) 3.6 (91.) 2.8 (71) 2.5 (64) 1.6 (41) S7(18) 27.7 (704) Brainerd[ 61 11 1.0 (25) 0M5 (13) 1.4 (36) 1.6 (41) 2.3 (58) 3.7 (94) 3.7 (94) 3.7 (94) 3.7 (94) 1.9 (48) 1.4 (36) 0.8 (20) 25.6 (650) Duluth 71 18 1.3 (33) 2.5 (64) 3.4 (86) 3.4 (86) 3.1 (79) 3.4(86) 2.6(66) 1.8 (46) 0.8 (20) 24.6 (625) Grand Marais1 1 0.7 (18) 0.6 (15) 1.1 (28) 0L8 (20) .0.6(15) 1.0 (25) 1.4(36) 2.6 (66) 4.0 (102) 3.4 (86) 3.1 (79) 3.0(76) 2.0(51) 1.4 (36) 0.7 (.18) :23.9 (607) International Falls' 19 1 Redwood Falls' 1 20 .0.7 (18). 0.6 (15) 1.7 (43) 2.5 (64) 3.1 (79) 4.1 (104) 3.8 (97) 3.6 (91) 2.5 (64) 1.9 (48) 1.6 (41) 0.6 (15). 26.6 (676) 2 11 2.4(61) 1.7(43) 0.9 (23) 0.3 (8) .19.7 (500) Thief River Falls1 0.2 (5) 0.3(8) 0.4(10) .1.0 (25) 2.6 (66) 3.4 (86) 3.4 (86) 3.1(79) 22 1 0.8 (20) 1.9 (48) 2.3 (58) 3.2 (81) 4.3 (123)4.1 (104)4.1 (104) 2.7 (69) 2.1 (53) 1.9 (48) 1.0 (25). 29.4 (747) Twin Cities1 1.0(25) 23 0.7 (18) 1.8 (46) 3.9 (99) 4.2 (107)4.4 (112) 4.7 (119) 3.9 (99) 2.2 (56) 2.2 (56) 1.3 (33) 34.2 (869)
-Winona1 1 1.4 (36) 3.5 (89) 24 1 0.7 (18) 1.9 (48) 2.7 (69) 3.4 (86) 4.6 (117) 3.6 (91)---3.5 (89) 2.6(66) 2.0(51) 1.7 (43) 0.7 (18) 27.8(706)
Worthinfton1 0.6(15) See also: List of Minnesota weather records http://en.Wikipedia.org/wiki/Climate of Minnesota 8/18/2008
Climate of Minnesota - Wikipedia, the free encyclopedia Page 5 of 16 Winter Even though winter does not officially start until late December,-Minnesota usually begins experiencing winter-like conditions: in November, sometimes as early as late October. As with many other Midwestern states, winter in Minnesota is characterized by cold (below freezing) temperatures and snowfall. Weather systems can move in from the north, west, or south, with the majority of the weather being driven in from the north. A vigorous jet stream brings high and low-pressure systems through in quick succession, which can cause large temperature variations over a short period of time. Temperature
- -~ As the last remnants of summertime air in the southern U.S. start to lose their grip, coldpolar air building up in northern Canada starts to push farther south, eventually spreading into Minnesota. By the time December and January arrive, Minnesota is fully engulfed in the polar air and is then subjected to arctic air masses moving in. Because there are no natural barriers north or northwest of Minnesota to block arctic air from pouring south, Minnesota gets regular shots of the arctic air through the winter.f2 5] High pressure systems which descend south from the Canadian plains behind the fronts bringlight winds, clear skies, and bitterly cold temperatures. The northern part of Minnesota gets the brunt of the cold air. International Falls, sometimes called the "Icebox of the nation", has the coldest average annual temperature of any National A wintry, February day in St. Weather Service first-order station in the contiguous United States at 37.4 'F (3.0 °C).126 ] Tower, Paul Minnesota, sinks below zero (-17 'C) an average of 71 times per year, and the ten coldest counties in the
- country, based on January minimums, are all located in Minnesota.[ 27 ] The'air mass then slowly moderates as it moves south into the rest of the state. Alberta clippers alternate with these high-pressure systems, bringing high winds and some snowfall with them.
Minnesota occasionally gets breaks from the polar and arctic air when a zonal flow takes hold. This means that the jet stream will move in a west to east motion (rather than north to south) and warmer air push air from the western United States into the region. In Minnesota this pattern commonly leads to a prolonged period of above freezing high temperatures that gives Minnesotans a break from the winter freeze. Storms that move into Minnesota from a more westerly direction generally do not bring. significant amounts of precipitation with them. [28]
- Precipitation Winter precipitation comes in a few diff~rent fonns. Snow is the main form of precipitation, but freezing rain, ice, sleet and sometimes even rain are all possible during the winter months. Larger storm systems, often Panhandle hooks or other storms that occur with a meridional flow. can bringn arge amounts of snow and even blizzard conditions.[2 9 ]
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0 Climate of Minnesota - Wikipedia, the free encyclopedia 0 Page 6 of 16 Alberta Clippers Alberta clippers are fast moving areas of low pressure that move through Minnesota during the winter MINNESOTA WEATHER PATTERNS months.'1 301 Clippers get their name from Alberta, Canada, the province from which they begin their southward track. (Other variations of the same type of stonn systems are "Saskatchewan Screamers" or "Manitoba Maulers".[3 1]) Although clippers often originate over the northern Pacific Ocean, they lose most of their moisture through orographic lift when they collide with the Canadian Rockies. Because of the limited moisture content and quick movement of the systems, clippers rarely produce more than 6 in (15 cm) of snow as they pass through Minnesota.E32 1 The biggest effects of an Alberta Clipper are what follows them, and that is arctic air, high wind speed, and dangerous wind chills. This often results in severe blowing 1 Alberta Clippers often proceed to become and drifting snow, and sometimes even blizzard conditions.[33 34 copious lake effect snow producers on the southern and eastern shores of the Great Lakes.[E ] Typical winter storm tracks in Panhandle Hooks Minnesota. In terms of their characteristics, Panhandle hooks are nearly the opposite of Alberta clippers. Instead of forming in the north and dropping south, these low pressure systems form in the southwestern United States and then move northeast. They get their name from the location where they usually make their turn to the north; near the panhandles of Oklahoma and Texas. Unlike clippers, these stonns usually have a great deal of moisture to work with. As the storms make their turn to the north, they pull in moist air from the nearby Gulf of Mexico and pull it northward toward Minnesota and other parts of the Midwest.[ 35 ] As these systems move to the northeast, there will usually be a heavy band of snow to the northwest of the low pressure center if there is enough cold air present. A wintery mix of precipitation, rain, or sometimes even thunderstorms will then often occur to the south of it.['361 Snowfall over a foot (30 cm) is not uncommon with a panhandle hook, and because of the high moisture content in these systems the snow is usually wet and heavy. Large panhandle hooks can become powerful enough to draw in arctic air after they pass by the state, leaving bitter cold temperatures and wind chills in their wake. Panhandle Hooks are responsible for some of the most famous blizzards that have occurred in the Midwest, including the Great Storm of 1975.[33] Spring Spring is a time of major transition in Minnesota. As winter nears its end, the sun rises higher in the sky and temperatures begin to moderate. As this happens much of the Midwest starts to experience severe thunderstorms and tornadoes.[ 371 Stonn systems that move inland from the Pacific begin to collide with the increasingly warm and moist air from the Gulf of Mexico. In the early part of the spring, Minnesota is usually not in a geographically favorable position to experience severe weather since the warm air needed for it has not vet iushed that far to the north.[38] Early smrina tornado outbreaks do occur occasionally in http://en.wikipedia.org/wiki/Climate of Minnesota 8/18/2008
Ch e of Minnesota - Wikipedia, the free encyclopedia Vi Pa7 of 16 Minnesota though, as evidenced-by the 1998 Comfrey - St. Peter tornado outbreak on March 29, 1998. More often, Minnesota is on the northern (cooler) side of major storm systems in the early spring, which instead results in only rain and possibly snow. Even though the winter snow pack typically starts to melt in southern Minnesota in early March, there is usually still enough cold air present over Canada to allow for major snow storms in Minnesota until late April.[39] I As spring progresses, the jet stream starts to push storm systems farther to the north, and southern Minnesota becomes more prone to severe thunderstorms and tornadoes.[3 8 1As spring moves into the later stages, A Minnesota wetland du ring the chances for snow continue to drop and eventually disappear; south to the month of April north. By the time it gets warni enough for severe weather in northern Minnesota, the strength of stormn systems have usually started to decrease, which results in fewer severe storms in northern Minnesota compared to the southern paft of the state. Wind With the exception of areas along the shores of Lake Superior, winds in Minnesota generally prevail from the north and northwest in the winter, and south and southeast in the summer.[71 On average, fall and spring are the windiest times of the year in Minnesota. October is the windiest month in northwest Minnesota, while April is the windiest over the rest of the state.[ 40 ] Winds generally average between 9-11 mph (14-18 kim'h) across the state, with one major exception. The heaviest winds in the state are found on the Buffalo Ridge, or Coteau des Prairies, a flatiron-shaped area extending from Watertown, South Wind turbines in western Dakota, diagonally across southwestern Minnesota and into Iowa. Created by two lobes of a glacier parting Minnesota around a pre-existing plateau during the (Pleistocene) Ice Age, the Buffalo Ridge is ideal for wind power 4 11 generation, with average wind speeds of 16.1 mph (26.8 km/h).[ Floods Minnesota is prone to flooding in its major rivers by spring snownielt runoff and ice jams. Spring flooding to some degree occurs almost annually on some Minnesota rivers, but major floods have occurred in 1965, 1969, 1997 and 2001.J42][431 The flooding in 1965 was the worst flood in Minnesota history on the Mississippi River, while the flooding in 1997 was the worst in history on the Red River.[ 441 The Red River flood of 1997 was aided heavily by the I I blizzards that struck Minnesota that winter.'71 ][451 Besides heavy winter and spring snowfall, cold winter temperatures and heavy fall and spring rains causing sudden run-off surges are also common causes of spring river floodina in Minnesota. [46] http://en.wikipedia.org/wiki/Climate of Minnesota 8/18/2008
Clue of Minnesota - Wikipedia, the free encyclopedia P e8of16 14 Minnesota is also prone to both river flooding and localized flash flooding by extended periods of heavy late-spring and summer rainfall. The Great Flood of 1993 on the Mississippi River was caused by copious amounts of rain that fell after the spring snow melt.[ 4 7 ] The 2007 Midwest flooding, which affected the hilly Driftless area of southeast Minnesota was the result of a training pattern of storms mixing warm moist air from Tropical Storm Erin with cooler Canadian air, resulting in record 24-hour rainfall totals of up to 17 inches (432 mm).[48] A bridge connecting East Grand Forks, Minnesota to Grand Forks, North Dakota is submerged during the record flooding of the Red River in 1997. _ _ Summer During a Minnesota summer, heat and humidity predominate in the south, while warm and less humid conditions are generally present in the north. A main feature of summer weather in Minnesota and the Midwestern United States as a whole is the weakening of the jet stream, leading to slower movement of air masses, a general increase in the stability of temperatures, and less wind.t 4 9 ] The strong wind that does blow almost always comes from the south, bringing in warm temperatures and humidity. These humid conditions and a jet stream that has pushed into the northern parts of the U.S. help kick off thunderstorm Canoes ready for use on a activity 30-40 days per year.[50] summer afternoon at Lake Harriet in Minneapolis Temperature Daily average summer temperatures in Minnesota range from the low 70s (22 'C) in the south to the mid 60s 'F (19 'C) in the north.13 ] Because summer time air masses are not as volatile as in the winter, daily high and low temperatures rarely vary more than 15 degrees (7 'C) either side of normal. While summertime around much of the country means long stretches of hot and humid weather, Minnesota is located far enough north where shots of cooler, drier polar air frequently move in behind polar fronts dropping south from Canada.[61 The polar air typically does not stick around very long though and is quickly replaced by the warmer and more humid air from the Gulf of Mexico once again. The cool, dry polar air colliding with hot and humid summertime air keep the threat of thunderstorms and tornadoes around in Minnesota through July and August. [38 Northern http://en.wikipedia.org/wiki/Climate of Minnesota
Cli*e of Minnesota - Wikipedia, the free encyclopedia ii P .9 of 16 Minnesota is considerably cooler and less humid than southern Minnesota during the summer months. For example, Duluth's annual average temperature and dew point are 6 degrees (3.4 'C) cooler than Minneapolis'.[ 5 1] July is the hottest month in Minnesota state-wide and is usually, the month when the peak heat waves occur.. In July 1936, Minnesota and the rest of-the Midwest suffered through its most severe heat wave on record. Most of the state was engulfed in 100 'F (38 'C) temperatures for several days in a row, and Minnesota's all time record high temperature of 114 'F (46 'C) was tied during this stretch. This heat wave was also responsible for setting the Twin Cities' all time record high of 108 'F (42 °C), as well as the all time record Showy ladyslippers bloom high of several other'cities across the state.[52] during the summer in Voyageurs National Park. The region of Minnesota that experiences the hottest summer temperatures is the west. Coteau des Prairies can heat cities to the north of it similar to how places in the Rocky Mountains are warmed by Chinook winds. As southwest winds blow down the slope of Coteau desPrairies, the air compresses and warms. This makes the already hot air even hotter and often causes places like Beardsley and Moorhead to record the warmest temperature in the state, despite their higher latitudes.[6 ] Precipitation The summer months of June, July and August account for nearly half of the annual precipitation total across the state of Minnesota.[E53 Most of this rain falls from thunderstormls, a frequent summer occurrence. Even though summer is the primary season for Minnesota to experience thunderstorms, they can occur from March to November. These storms can become severe, producing large hail, strong tornadoes, and large bow echos that result in damaging straight-line winds. Minnesota has experienced several major derecho events, most recently the Boundary Waters-Canadian Derecho which blew down millions of trees in the Boundary Waters Canoe Area Wilderness on July 4, 1999.E54] A flash flood washed away a Sumimertime thunderstorms are fueled by'dew points that often reach into the 70s 'F (21 'C) and sometimes bridge on Minnesota State -J even 80 'F (27 °C).[ 55 1 In addition to severe conditions, thunderstorms produce heavy rain and cloud to Highway 74 during the 2007 ground lightning. Heavy rain brings flash floods to Minnesota an average of three days per year.[ 25] With Midwest flooding. the exception of hail, summer precipitation in Minnesota is almost always in the form of rain. The lone - exception is in far northern Minnesota, where in mid-September, small amounts of snow become a 56 possibility.E J Droughts http://en.wikipedia.org/wiki/Climate of Minnesota 8/18/2008
C1le of Minnesota - Wikipedia, the free encyclopedia P 10 of 16 Droughts are an annual summer concern in Minnesota, especially for fanrners. The growing season (which varies from 90 days per year in the Iron Range to 160 days in southeast Minnesota) is when Minnesota U,, averages its highest percentage of annual precipitation, so a lack of rainfall during this time period can be devastating to crops.t 2 5 ] The last major drought in Minnesota was in 1988. During that year, the period of April - July was the 2 nd driest in the previous century, and the period of May - August was the hottest on record. The combination of dry skies and heat caused a severe drought which cost the state approximately 1.2 billion dollars in crop losses.[5 7 ] Southern Minnesota is located on the edge of Tornado Alley Other memorable drought years were 1976 and the Dust Bowl years of the 1930s. During the dust bowl, inappropriate farming techniques enhanced by years of drought conditions led to dust storms in Minnesota and the other parts of the Midwest.[58] Drought conditions also have helped spawn forest fires. In 1894 the Great Hinckley Fire destroyed Hinckley killing an estimated 459 people, and in 1918 a forest fire killed 453 people in the vicinity of Cloquet. [59] More recently, in 2006, the Cavity Lake Fire burned 31,830 acres (129 km 2) in the Boundary Waters Canoe Area Wilderness.[ 60 ] Tornadoes Tornadoes are possible in Minnesota from March - November, but the peak tornado month is June, followed by July, May, and August. Tornadoes are most common in the southern half of the state, which is located on the northern edge of tornado alley. Just over a third of tornadoes in Minnesota strike between 4 pm - 6 pm. [7] The state averages 24 tornadoes per year;[3 8] 99% of which have ratings of F2 or weaker. On average Minnesota has an F5 tornado once every 25 years. Some of the notable Minnesota tornadoes and outbreaks are:
" August 21, 1883: An F5 tornado struck Rochester, killing 37. This tornado led to the construction of a new hospital, which eventually evolved into the Mayo Clinic.
" April 14, 1886: A large tornado struck Sauk Rapids, killing 72. This was Minnesota's deadliest An F3 tornado in souther tornado on record.[ ]61 Minnesota on August 24, 2006
" June 22, 1919: The second deadliest tornado in Minnesota history tore through Fergus Falls, killing 59.
" May 6, 1965: Four F4 tornadoes ripped through the Twin Cities metro area (two of them in Fridley), killing 13.
62
- July 18 1986: KARE 11 broadcast a tornado in Fridley from a news helicopter live on their 5 pm news.[ ]
- June 16, 1992: Minnesota experienced its busiest tornado day ever with 27 recorded twisters. The largest tornado in this family was an F5 that struck Chandler, Minnesota, killing one. This is the most recent F5 tornado to strike the state.
- March 29, 1998: An F4 and an F3 tornado that were part of a larger outbreak tore through the towns of Comfrey and St. Peter. They killed two and caused damage in the millions of dollars in Minnesota's earliest recorded tornado outbreak.
http://en.wikipedia.org/wiki/Climate of Minnesota 8/18/2008
Clite of Minnesota - Wikipedia, the free encyclopedia P 11 of 16 6 Fall Autumn weather in Minnesota is marked by the rapid decrease of severe thunderstorms, dramatic cooling,. and eventually the possibility of blizzards. From September to December the average temperature in the state falls by approximately 43 'F (23 'C), the largest such temperature swing within any Minnesota season.[ 13 ] But with summer-time heat still prevalent in the southern U.S. and colder air quickly taking hold in Canada, Minnesota can be affected by wide temperature swings in short periods of time. Because of this, the jet stream, which tends to weaken during the summer months, begins to re-strengthen. This leads to quicker changes in weather patterns and increasingly strong storm systems.[ 6 3 ][64 1 As autumn moves on, Early fall in Voyageurs these storm systems bring with them progressively colder air, eventually changing the rain over snow, National Park. generally starting in October in the northern part of the state and November in the south.[65] By late October and November atmospheric dynamics are generally in place to allow stonn systems to become very intense. In fact, Minnesota's all time record low pressure was recorded during fall on November 10, 1998.E51 If these powerful storm systems are able to draw enough cold air southward from Canada, they can evolve into powerful blizzards. Some of Minnesota's most memorable winter stonn events have occurred during the middle part of the fall season. On November 11, 1940, the southeast half of Minnesota was surprised by the Armistice Day Blizzard. Temperatures in the 60s 'F (16 ° C) on the morning of November 11 dropped into the single digits (below -12 'C) by the morning of November 12, bringing with them 27 inches (69 cm) of snow and 60 mph (100 km/h) winds. 154 people died in this blizzard, 49 of them in Minnesota. [66][67] On October 31, 1991, much of Minnesota was hit by Blue skies and bright 1, the Halloween Blizzard. A band of snowfall of 24+ in (60+ cm) fell from the Twin Cities north to Duluth. It during a Minnesota aul 68 was the single largest snow storm ever recorded in many communities across eastern Minnesota.[ 1 Image and popular culture Minnesota's climate has done much to shape the image of the state. Minnesotans boast of their "theater of seasons", with a late but intense spring, a summer of water sports, a fall of brilliantly colored leaves, and a long winter with outdoor sports and activities. -"Summer at the lake" is a Minnesota tradition. Water skiing was invented in Minnesota by Ralph Samuelson, and the Minneapolis Aquatennial features a milk carton boat race. Contestants build boats from milk cartons and float them on Minneapolis area lakes, with 69 recognition based more on colorful and imaginative designs than on actual racing nerformance.[ ] 'http://en.wikipedia.org/wiki/Climate of Minnesota 8/18/2008
Climate of Minnesota - Wikipedia, the free encyclopedia P 12 of 16 But while Minnesota's wairn summers provide its natives and tourists with a variety of outdoor activities, the state is known for its winters. The state has produced curlers and skiers who have competed in the M, 70 Winter Olympics, pioneers who invented the snowmobile, and legions of ice fishing enthusiasts.[ 1 The state is also known for enthusiastic ice hockey players, both at the amateur and professional levels. Eveleth, Minnesota, home to the United States Hockey Hall of Fame, boasts of the number of quality players and the contributions of the'city (and the rest of the Mesabi Range) to the growth and development of hockey in the United States.[ 7 1] The ice castle at the 2004 St. Paul Winter Carnival. To many outsiders, Minnesota's winters appear to be cold and __' inhospitable. A World War 11 newscaster, in describing the brutally cold Ice fishing in Minnesota has conditions of the Russian front, stated that at least Minnesotans could understand it.[ 7 01 A New York been a theme in Hollywood journalist visited St. Paul and declared that the city was "another Siberia, unfit for human habitation." In films, response, the city decided to build a huge ice palace in 1886, similar to one that Montreal had built in 1885. They hired the architects of the Canadian ice palace to design one for St. Paul and built a palace 106 ft (32.3 m) high with ice blocks cut from a nearby lake.[ 691 This began the tradition of the Saint Paul Winter Carnival, a ten day festival which celebrates Minnesota's winter season.[ 72 ] Minnesota's winters are the setting of several Hollywood films, including the ice fishing comedies of Grumpy Old Men and Grumpier Old Men, set and filmed in the state.[73][ 74 ] The 1996 film noir Fargo also features the backdrop of a Minnesota winter, but like most of the characters in the movie, the climate is portrayed as bleak and inhospitable.[ 751 Summer resorts on Minnesota's "10,000 lakes" may prefer to emphasize warm-season activities, but from The Rocky and Bullwinkle Show's Frostbite Falls, Minnesota to Fargo, long and cold winters seem to be the popular image of the climate of Minnesota. See also
, Climate of the United States
- Meteorology
" Weather lore References 4~nesout Portal http://en.wikipedia.org/wiki/Climate of Minnesota 8/18/2008
Climate of Minnesota - Wikipedia, the free encyclopedia P 6 13 of 16
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Retrieved on 2007-06-07. 24.. - a b Ross, Douglas (1971 - 2000). "Daily Nonnals for Worthington, Minnesota (http://www.ncdc.noaa.gov/DLYNRMS/dnnn?coopid=219170)". NCDC. Retrieved on 2007-06-07. http://en.Wikipedia.org/wiki/Climate of Minnesota .8/18/2008
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*49 A "Typical speeds of jet stream winds (http://www.usatoday.comi/weather/resources/`askjack/2003-11-28-answers-jet-streams x.htm)". USA Today (December 3, 2003). Retrieved on 2006-11-10.
50.AA "U.S.Thunderstorm Distribution (http://www.srh.noaa.gov/key/HTML/tstmhazards.htm)". NOAA. Retrieved on 2006-10-25. http:/Hen.wikipedia.oIrg/wiki/Climate of Minnesota :8/18/2 008
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storyid=129567)". KARE. 11. Retrieved on 2006-11-15. 631a "Jet Stream (http://ww20lO.atmos.uiuc.edu/(Gh)/guides/mtr/cyc/upa/jet.rxml)". University of Illinois. Retrieved on 2006-11 =23.
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External links a Minnesota State Climatology Office (http://climate.umn.edu/) http://en.wikipedia.org/wiki/Climate ofMinnesota .8/18/2008
Climate of Minnesota - Wikipedia, the free encyclopedia Page 16 of 16
" National Weather Service - Central Region Headquarters (http://www.crh.noaa.gov/crhl/) " National Climatic Data Center (http://www.ncdc.noaa.gov/oa/ncdc.html)
Retrieved from "http://enlwikipedia.org/wiki/Climate of Minnesota" Categories: Featured articles I Climate of Minnesota
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a All text is available under the terms of the GNU Free Documentation License. (See Copyrights for details.) Wikipedia is a registered trademark of the Wikimedia Foundation, Inc., a U.S. registered 501(c)(3) tax-deductible nonprofit charity. http://en.wikipedia.org/wiki/Climate of Minnesota .8/18/2008,
REDW G DAM 3, MINNESOTA Period of Record Monthly Cli Summary P lof 1 RED WING DAM 3, MINNESOTA (216822) Period of Record Monthly Climate Summary Period of Record : 7/1/1948 to 6/30/2007 Jan Feb Mar ADr 1-Mav
.... #
Jun Jul Aug Sep Oct Nov Dec . Annual Average Max. Temperature 23.5 29.3 41.4 56.7 68.4 77.9 82.4 79.8 72.4 59.0 41.5 29.0 55.1 (F) Average Min. Temperature 5.7 10.3 22.9 36.7 47.9 57.7 62.2 59.8 51.2 38.7 25.9 13.4 36.0 (F) Average Total Precipitation 0.79 0.69 1.76 2.66 3.53 4.29 4.16 3.77 3.32 2.08 1.55 0.90 29.49 (in.) Average Total SnowFall (in.) 9.1 7.4 8.8 1.7 0.0 0.0 0.0 0.0 0.0 0.1 4.1 8.1 39.3 Average Snow Depth (in.) 6 8 5 0 0 0 0 0 0 0 1 3 2 Percent of possible observations for period of record: Max. Temp.: 22.7% Min. Temp.: 22.7% Precipitation: 98.9% Snowfall: 96.9% Snow Depth: 95.4% Check Station Metadata or Metadata graphics for more detail about data completeness. High PlainsRegional Climate Center, contact us. http://www.hprcc.unl.edu/cgi-bin/cliperl-lib/cliRECtM.pl?mn6822 8/18/2008
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GRAPHICAL CLIMATOLOGY OF MINNEAPOLIS-ST. PAUL AREA TEMPERATURES, PRECIPITATION, AND SNOWFALL (1820-PRESENT) By Charles Fisk* Last Update: 4 August 2008 The following is a graphical climatology of Minneapolis-St. Paul, Minnesota temperatures, precipitation, and snowfall, from the start of 1820 (Fort Snelling) into the present year 2008. Presented are 31 summary overview charts, a link to a year-by-year account of early (1820-1869) Minnesota weather history, followed by 188 year-to-year graphs depicting daily temperatures, precipitation, and snowfall. Original source data are from Fort Snelling (1820-1858), St. Paul Smithsonian recordings (1859-1872); and government weather service observations for St. Paul (1873-1890), downtown Minneapolis (1890-1938), and the Minneapolis-St. Paul International Airport (1938-present). Daily snowfall totals date from 1891, snow depth data from 1893. Data were obtained from the National Archives, the Minnesota Historical Society, The University of Minnesota Periodicals Library, the National Climatic Data Center, the Minneapolis-St. Paul National Weather Service Office online site, and the Minnesota Climatology Working Group. Monthly updates are from the site: http://climate.umn.edu/doc/prelim lcd msp.htm CLIMATE OVERVIEW GRAPHS - TEMPERATURE: MINNEAPOLIS-ST. PAUL DAILY TEMPERATURES (MEANS & EXTREMES) COMPLETE YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC . MINNEAPOLIS-ST. PAUL MONTHLY TEMPERATURES (EXTREMES): MINIMA LOWEST MAXIMA HIGHEST MINIMA HIGHEST MAXIMA LOWEST MINNEAPOLIS-ST. PAUL AVERAGE DAY-TO-DAY VARIABILITY INMEAN. MAX, & MIN TEMPERATURE, BY CALENDAR DAY MINNEAPOLIS-ST. PAUL AVERAGE DAILY TEMPERATURE RANGES, BY CALENDAR DAY MINNEAPOLIS-ST. PAUL STANDARD DEVIATION STATISTICS FOR DAILY MEAN, MAX, & MIN TEMPERATURES, BY CALENDAR DAY MINNEAPOLIS-ST. PAUL SKEWNESS STATISTICS FOR DAILY MEAN. MAX, & MIN TEMPERATURES, BY CALENDAR DAY MINNEAPOLIS-ST. PAUL ANNUAL MEAN TEMPERATURE HISTORY (1820-2007) PRECIPITATION: MINNEAPOLIS-ST. PAUL YEARLY PRECIPITATION HISTORY (1891-2007) MINNEAPOLIS-ST. PAUL AVERAGE MONTHLY PRECIPITATION MINNEAPOLIS-ST. PAUL PRCP-DAY FREQUENCIES FOR >=0.01." >=0.13", >=0.25". >=0.50". & >=1.00" MAGNITUDES, BY CALENDAR DAY (1891-2007) MINNEAPOLIS-ST. PAUL MONTHLY PRECIPITATION DISTRIBUTIONS (BOXPLOTS) SNOWFALL: OMINNEAPOLIS-ST. PAUL SEASONAL SNOWFALL HISTORY (1884-85 THRU 2007-08 SEASONS) MINNEAPOLIS-ST. PAUL AVERAGE MONTHLY SNOWFALL 8/17/2008 10:26 AM
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MINNEAPOLIS-ST. PAUL MONTHLY SNOWFALL DISTRIBUTIONS (BOXPLOTS) MINNEAPOLIS-ST. PAUL ONE AND THREE-INCH SNOW-DAY PROBABILITIES, BY CALENDAR DAY MINNEAPOLIS-ST. PAUL MEDIAN. MEAN. AND EXTREME MAXIMUM SNOW DEPTHS. BY CALENDAR DAY
. YEAR-BY-YEAR ENCYCLOPAEDIC ACCOUNT OF EARLY MINNESOTA WEATHER (1820-1869)
THE HISTORICAL TEMPERATURE DATA: OFFICIAL WEATHER BUREAU OBSERVATIONS (1873-PRESENT) AND RECONSTRUCTED PIONEER ERA RECORDINGS (1820-1872) Temperature graphs for the 1873-present period are based on official St. Paul or Minneapolis absolute maximum and minimum temperature observations for given days (nearly all for the midnight-to-midnight period), the standard method of recording "summary-of-the-day" temperature statistics for first-order weather stations. Original summary-of-the-day temperature observations for the 1820-1872 "Pioneer" era (along with those for cloudiness, wind direction, and wind force), however, consisted of fixed-time scheme observations according to a prescribed format (e.g., 7AM, 2PM, and 9PM; or Sunrise, 9AM, 3PM, and 9PM) (example 1) (example 2). To achieve methodological consistency, the fixed-time-scheme 1820-1872 observations were converted into midnight-to-midnight maxima and minima approximations, using application of 1961-1980 statistical relationships between Minneapolis-St. Paul Airport temperature, cloudiness, and wind information at hours corresponding to the ol~d fixed-time schemes, and 1961-1980 midnight to midnight daily temperature maxima and minima [Fisk, 1984]. This reconstruction "homogenized" the entire history as to summary-of-the-day method, and affords identical-type daily temperature graphs to be presented here for the entire 1820-present history ADD'L DETAILS ON RECONSTRUCTION OF MINNEAPOLIS-ST. PAUL AREA PIONEER-ERA TEMPERATURE RECORD. YEAR-TO-YEAR GRAPHS - INTERPRETATION The uppermost chart on a given yearly page (links below) are "floating-bars" of the daily maxima and minima. Superimposed are two line traces, the upper one connecting average daily maxima, the lower one average daily minima. The bars depict the varying diurnal, synoptic, long-wave, and seasonal influences on temperature over time, and subjectively, some years' patterns can be quite interesting to look at (see "REPEAT LINKS TO SOME OF THE MORE INTERESTING YEARS WITH ACCOMPANYING NOTES" section below),. The second chart down shows the arithmetic departures of day-to-day mean temperatures (sum of the daily maximum plus the daily minimum divided by two) less the corresponding calendar-day average means. Vertical lines extending upward from the zero line indicate above average means for the day (colored red), those extehding downward indicate below average daily means (colored blue). In the entire series of more than 68,000 days, greatest positive departure for any individual day is +38 F for 25 January 1944, the greatest negative departure -45 F for 1 January 1864. 1820 1821 1822 1823 1824 1825 1826 1827 1828 1829 1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 1854 1855 1856 1857 1858 1859 1860 1861 1862 1863 1864 1865 1866 1867 1868 1869 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 1881 1882 1883 1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894 1895 1896 1897 1898 1899 1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 1922 1923 1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 1934 1935 1936 1937 1938 1939 2of5 8/17/2008 10:26 AM
ULLp://nome.att.neT/-mmnn CnmO/ 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 The third chart down shows chart two's departures in deseasonalized or "standardized" form. This adjusts for the fact that individual calendar days have higher or lower inherent year-to-year variability in daily mean temperature. For example, standard deviations of given calendar-day daily mean temperatures for the 1820-2006 period ranged from 14.87 F (4 February) to 5.48 F (21 August). Dividing a given day's departure from average by its' respective calendar day daily mean temperature standard deviation creates the standardized departures or "z-scores". Only five daily departures in the entire series are plus or minus 3.5 or greater. Three of these, all negatives, came over the four-day period 4-7 November 1991, associated with an unseasonably cold arctic air outbreak in the wake of a record early and heavy snowstorm. The fourth chart down depicts daily rainfall, the fifth and sixth charts, respectively, daily snowfall and snow depths. REPEAT LINKS TO SOME OF THE MORE INTERESTING YEAR-TO-YEAR GRAPHS, WITH ACCOMPANYING NOTES 1820 - Year One. Frigid January WEATHER DIARY FOR JAN J820, very mild April, eleven-inch snowstorm in mid-October. 1822 - Coldest December in history DEC 1822; December 2nd 42 F below average. Also torrential June rains, producing local flooding JUN1822. 1824-1825 - (July-June view) . Exceptionally mild December '24 to April
'25 period; likely El Nino influence.
1826 -6 Very backward April APR1826 (accompanied by severe flooding), but May 28 F warmer than April. 1829 - "The Dry Year", as described by early Minnesota history texts. Severely cold February and other extreme temperature spells throughout year. 1830 - Hottest July until 1936, and much above normal October/November. 1833 - El Nino winter of '32-'33 mildest for another 45 years. Very mild December '33 also. 1833 (July-June view). Greatest three-month thermal "see-saw" in history:. January 1834 29 F colder than December 1833, February 183428 F warmer than January. 1835 - Volcanic dust-veil produces series of anomalous cold spells during second half. 1838 - Great temperature extremes. Minus 40 F in February and a late May hard freeze. Hot summer, but unseasonable cold in fall and early winter. 8/17/2008 10:26 AM
I-ClIM01 1838 (July-June view). Abnormal cold over October to December '38 gives way to abnormal warmth over January to April '39. 1839 - Warmest recorded year up to this time; warmest April APR 1839 down to the present day. 1842 - Extraordinary coolness over mid-May into July. Coldest June JUN 1842 and coldest November NOV1842 in all history down to present. 1843 - Coldest year in area history. Extraordinary persistent arctic cold over February and March. Coldest March (more than 25 F below average). MAR1843, and coldest October OCT1843 in all history down to present. 1842 (July-June view). 1845 - Steep temperature plunge over mid-to-late November. 1846 - Warmest year of pre-statehood era. Mildest January in all history down to the present JAN 1846. 1849 - December 34 F colder than November. 1855 Two successive arctic blasts, in late December DEC1855 and early January JAN1856. A third in February. 1857 - Second successive bitter winter. Coldest January JAN1857 and April APR1857 in history. 1863 - The "Strange" weather year. Extremes in temperatures, and worst growing season drought to date - no measurable rain in June (St. Paul). Killing frosts in July and August across settled areas. 1864 - Continued drought during the year. Frigid New Years' Day - Maximum: -24 F, Minimum: -38 F in St. Paul. 1865 - Heavy summer rains break drought; 38" recorded for year in St. Paul, morethan '63 and '64 combined. Very cool summer, July 1 F cooler than September. 1867 - Very backward spring. March 1867 5 F colder than any March since, but still 8 F warmer than 1843. More than 10" rain in June in St. Paul. 1869 - More than 18" rain over August and September. 1875 - Second coldest year in history. January and February both AVERAGE below zero. 1877 "Year Without a Winter". El Nino-induced extraordinarily mild winter. Mildest December in history. Near record warmest February and March. 1879 - "Second Edition of Summer" brings unseasonable October warmth. Very cold Christmas Day, minus 39 recorded in St. Paul. 8/17/2008. 10:26 AM
1885 - Great temperature variability over January to March. 1888 - Severe winter (including -41 F in January). Persistent spells of unseasonable coolness into spring and summer. 1895 - Abrupt May cold turn temporarily derails an otherwise forward Spring. 1899 - Great February cold wave. 1907 - Persistent abnormal cold through April and May; 13" snowstorm over Apr 27-28. 1910 - Driest year (11.54") in local climatic history down to present. Also warmest March in all history. 1911 - Great adjacent-year reversal in annual precipitation - Wettest year (40.15") in all history down to present. 1915 - Very forward April, but May 4 F colder; very cool summer ensues. 1917 8/17/2008 10:26 AM
.- ttp.fu uUm .mtnePR mm-M H1_ltmoimspuox.gji AVERAGE AND RECORD DAILY MAXIMUM AND MINIMUM TEMPERATURES, MINNEAPOUS- ST. PAUL, MN (1820-2006 PERIOD of RECORD)
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. -. llt~p;H iiu.tnn*.titt.. tumnm*iimo mspj ani.gli AVERAGE AND RECORD DAILY MAXIMUM AND MINIMUM TEMPERATURES, FOR JANUARY - MPLS.-ST. PAUL (1820-2006 PERIOD OF RECORD) 60 6o 66 Pk& 55 50 50 46 46 40 40 35 35 30 30 25 25 20 20 15 10 0 aI 1 00 11 1 1 1 10 11 0 1 5 11 01 0 1 ] 15 10 6
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1UL1.II P.1,aULu.UIIUIxUw LvUum iumLd$/ImIspsnow.uXT 122 years of Twin Cities Monthly and Seasonal Snowfall Totals (inches) 1884 - 2008 Year Jul Aug Sep Oct Nov De~c Jan Feb Mar Apr May Jun Season Total Downtown St. Paul 84-85 0.0 0.0 0.0 1.1 7.2 14.9 3.5 2.0 4.0 8.3 1.0 0.0 42.0 85-86 0.0 0.0 0.0 0.2 0.5 3.5 14.7 2.8 10.4 0.1 0.0 0.0 32.2 86-87 0.0 0.0 0.0 0.0 19.6 5.7 21.6 6.9 1.7 1.0 0.0 0.0 5.6.5 87-88 0.0 0.0 0.0 0.2 1.7 15.4 4.5 3.4 11.9 0.2 1.0 0.0 38.3 88-89 0.0 0.0 0.0 0.5 2.1 2.2 2.6 3.9 4.1 T 0.0 0.0 15.4 89-90 0.0 0.0 T 0.0 4.0 5.5 8.3 4.4 7.5 T 2.0 0.0 31.7 90-91 0.0 0.0 0.0 T 4.4 2.3 4.7 12.3 6.2 3.2 T 0.0 33.1 Downtown Minneapolis 91-92 0.0 0.0 0.0 0.0 8.8 5.8 0.6 7.2 7.3 T 3.0 0.0 32.7 92-93 0.0 0.0 0.0 0.0 3.5 6.3 11.4 17.8 7.1 13.0 T 0.0 59.1 93-94 0.0 0.0 0.0 0.0 8.2 12.4 12.0 0.3 11.2 5.8 0.0 0.0 49.9 94-95 0.0 0.0 0.0 T 0.8 2.7 9.0 3.3 0.4 0.0 0.0 0.0 16.2 95-96 0.0 0.0 0.0 0.4 2.6 0.6 5.2 2.2 8.6 7.4. 0.0 0.0 27.0 96-97 0.0 0.0 0.0 T 8.8 4.2 13.6 10.3 16.0 0.5 0.0 0.0 53.4 97-98 0.0 0.0 0.0 0.0 4.8 1.5 0.6 9.6 12.7 2.1 0.0 0.0 31.3 98-99 0.0 0.0 0.0 T 14.1 1.5 8.0 15.2 23.6 T 0.0 0.0 62.4 99-00 0.0 0.0 0.0 0.1 1.0 1.9 6.1 9.1 16.7 1.5 0.0 0.0 36.4 00-01 0.0 0.0 0.0 0.0 7.8 4.3 5.8 4.5 19.1 T 0.0 0.0 41.5, 01-02 0.0 0.0 0.0 0.0 3.2 7.2 5.3 4.4 1.5 0.8 T 0.0 22.4 02-03 0.0 0.0 0.0 0.0 2.4 24.0 4.2 2.6 4.1 1.5 T 0.0 38.8 03-04 0.0 0.0 0.0 0.0 2.5 8.3 8.5 13.2 5.8 7.8 0.0 0.0 46.1 04-05 0.0 0.0 0.0 T 0.3 7.4 13.1 9.3 1.0 T T 0.0 .31.1 05-06 0.0 0.0 0.0 5.5 11.5 1.9 17.7 4.5 4.0 T 0.1 0.0 45.2 06-07 0.0 0.0 0.0 T 3.0 8.6 12.8 11.6 5.8 13.0 0.8 0.0 55. 6 07-08 0.0 0.0 0.0 0.0 0.3 7.3 8.0 10.6 14.3 11.7 T 0.0 52.2 . 08-09 09-10 0.0 0.0 0.0 0.0 I0-11 0.0 0.0 0.0 11-12 0.0 0.0 T 0.0 0.0 0.0 T 0.1 0.3 11.0 3.9 13.5 19.2 4.2 12.7 14.1 10.1 24.2 6.1 5.9 3.7 0.9 4.6 8.5 4.9 8.7 1.8 0.0 0.0 0.0 0.0 0.0 64.7 56.2 37.5 T 12.1 14.4 8.4 2.7 4.6 0.5 0.0 0.0 42.7 12-13 0.0 0.0 0.0 T 1.0 13.6 4.5 11.7 11.6 5.0 0.0 0.0 47.4 13-14 0.0 0.0 0.0 1.1 0.6 T 7.7 6.8 2.9 3.4 0.0 0.0 22.5 14-15 0.0 0.0 0.0 0.0 0.4 8.4 16.4 6.4 14.3 0.0 2.0 0.0 47.9. 15-16 0.0 0.0 0.0 T 5.1 7.6 23.9 7.3 5.6 1.2 T 0.0 50.7 16-17 0.0 0.0 T 4.3 0.1 13.6 28.8 7.7 29.9 0.5 0.0 0.0 84.9 17-18 0.0 0.0 0.0 2.3 0.9 6.2 5.3 4.9 11.2 T 0.0 0.0 30.8 18-19 0.0 0.0 0.0 T 0.5 4.8 4.6 11.8 1.5 2.2 0.0 0.0 25.4 19-20 0.0 0.0 0.0 2.6 11.0 8.0 18.5 5.0 14.3 5. 5' 0.0 0.0 64.9 20-21 0.0 0.0 0.0 T 1.1 9.4 3.4 5.6 1.0 0.1 T .0.0 20.6 21-22 0.0O 0.0 0.0 T 16.6 3.2 7.0 13.6 1.4 1.5 0.0 0.0 43.3 22-23 0.0 0.0 0.0 0.4 0.8 1.7 11.8 4.2 11.8 11.0 0.5 0.0 42.2 23-24 0.0 0.0 0.0 T 1.4 2.7 7.7 5.5 12.6 2.0 0.5 0.0 32.4 24-25 0.0 0.0 0.0 0.0 3.2 10.0 5.4 4.2 0.3 0.0 0.1 0.0 23.2 25-26 0.0 0.0 0.0 3.3 3.6 3.2 7.9 5.5 10.7 2.8 0.0 0.0 37.0 26-27 0.0 0.0 0.0 0.1 4.9 12.3 5.5 2.1 4.1 1.1 T 0.0 30.1 27-28 0.0 0.0 T 0.0 5.3 22.8 3.2 3.2 .5.7 16.9 0.0 0.0 57.1 28-29 0.0 0.0 T 0.0 T 3.6 18.3 11.7 4.4 9.2 0.2 0.0 47.4 29-30 0.0 0.0 0.0 1.9 2.7 5.3 11.0 4.8 1.8 0.0 0.0 0.0 27.5 30-31 0.0 0.0 0.0 0.5 4.7 0.7 0.9 7.0 0.4 T T 0.0 14.2 31-32 0.0 0.0 0.0 0.0 0.7 3.5 18.7 8.1 13.4 2.2 0.0 0.0 46.6 32-33 0..0 0.0 0.0 1.6 0.8 13.7 4.1 8.9 4.7 0.9 0.0 0.0 34.7 33-34 0.0 0.0 0.0 0.3 5.7 5.1 6.1 2.1 5.9 0.4 0.0 0.0 25.6 34-35 0.0 0.0 0.0 T 8.5 13.0 14.8 0.8 4.6 6.9 3.0 0.0 51.6 35-36 0.0 0.0 0.0 T 2.6 8.3 9.1 19.7 16.5 2.6 0.0 0.0 58.8 36-37 0.0 0.0 0.0 0.1 1.7 11.2 12.2 7.6 8.2 3.6 0.0 0.0 44.6 37-38 0.0 0.0 0.0 T 1.2 5.4 9.3 7.4 6.2 T T 0.0 29.5 Twin Cities International Airport 38-39 0.0 0.0 0.0 1.9 0.5 9.1 7.4 11.9 6.0 4.8 0.0 0.0 41.6 39-40 0.0 0.0 0.0 0.6 T 4.8 5.0 9.1 25.6 T T 0.0 45.1 40-41 0.0 0.0 0.0 0.0 26.3 10.6 3.3 5.5 6.8 T 0.0 0.0 52.5 41-42 0.0 0.0 0.0 T 3.8 8.6 1.7 5.2 4.6 T 0.0 0.0 23.9 8/17/2008 10:22 AM
nttp:I//c mate.umn.eauttexrinistorlcai/mspsnow.txt 42-.43 0.0 0.0 1.7 0.3 0.9 7.0 10.1 4.6 9.8 T T 0.0 34.4 43-44 0.0 0.0 0.0 T 10.3 T 1.0 4.2 11.1 0.3 T 0.0 26.9 44-45 0.0 0.0 0.0 0.0 2.5 1.1 8.2 15.4 0.7 6.0 T 0.0 33.9 45-46 0.0 0.0 T 0.0 4.5 14.6 4.3 11.9 1.5 0.1 3.0 0.0 39.9 S47-48 46-47 48-49 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 T T 4.1 5.9 7.6 1.9 3.3 0.0 21.8 2.5 6.7 2.3 3.5-11.6 12.5 3.4 5.2 8.3 2.0 0.3 9.3 0.2 T 0.0 0.0 0.0 0.0 25.0 49.1 38.3 49-50 0.0 0.0 0.0 T 2.7 6.5 17.0 7.9 11.1 6.4 0.0 0.0 51.6 50-51 0.0 0.0 0.0 0.0 5.6 25.0 7.1 8.6 40.0 2.6 0.0 0.0 88.9 51-52 0.0 0.0 0.0 0.8 10.8 16.5 9.9 15.0 25.4 0.6 0.0 0.0 79.0 52-53 0.0 0.0 0.0 0.0 10.1 6.0 6.0 13.4 6.7 0.7 0.0 0.0 42.9 53-54 0.0 0.0 0.0 0.0 1.9 5.9 3.6 1.0 10.7 0.2 2.4 0.0 25.7 54-55 0.0 0.0 0.0 0.4 6.4 4.0 7.8 11.0 4.3 0.0 0.0 0.0 33.9 55-56 0.0 0.0 0.0 2.5 6.0 14.6 4.6 2.4 14.0 1.1 0.0 0.0 45.2 56-57 0.0 0.0 0.0 0.0 6.8 2.1 4.9 8.7 7.0 9.6 0.0 0.0 39.1 57-58 0.0 0.0 0.0 0.0 10.3 2.2 2.4 1.2 3.5 1.6 0.0 0.0 21.2 58-59 0.0 0.0 0.0 0.0 3.3 2.4 1.4 6.3 5.7 0.0 0.0 0.0 19.1 59-60 0.0 0.0 0.0 3.7 6.9 3.5 9.5 2.7 5.5 0.0 0.0 0.0 31.8 60-61 0.0 0.0 0.0 0.0 2.4 1.7 4.6 8.7 15.1 7.7 0.0 0.0 40.2
.61-62 0.0 0.0 0.1 0.0 2.5 18.1 5.9 26.5 21.8 6.4 0.0 0.0 81.3 62-63 0.0 0.0 0.0 0.0 5.6 3.2 5.0 5.4 9.8 5.5 0.0 0.0 34.5
.63-64 0.0 0.0 0.0 0.0 0.0 7.6 5.0 1.0 9.7 5.6 0.0 0.0 28.9 64-65 0.0 0.0 0.0 0.0 ,4.3 8.1 10.5 11.7 37.1 2.0 0.0 0.0 73.7 65-66 0.0 0.0 0.0 0.0 1.6 1.2 11.9 6.8 14.2 0.4 0.0 0.0 36.1 66-67 0.0 0.0 0.0 0.2 3.4 12.7 35.3 23.7 2.6 0.2 0.3 0.0 78.4 67-68 0.0 0.0 0.0 0.3 0.8 2.4 10.6 2.2 0.8 0.4 0.0 0.0 17.5 68-69 0.0 0.0 0.0 0.0 4.9 28.7 21.6 5.3 7.3 0.3 0.0 0.0 68.1 69-70 0.0 0.0 0.0 2.4 3.8 33.2 9.8 4.3 8.6 1.3 0.0 0.0 63.4 70-71 0.0 0.0 0.0 0.0 6.3 5.5 19.9 13.9 7.0 1.9 0.2 0.0 54.7 71-72 0.0 0.0 0.0 0.0 13.2 12.8 12.2 7.6 10.4 8.0 0.0 0.0 64.2 72-73 0.0 0.0 0.0 0.0 1.1 15.3 11.6 11.3 0.4 2.0 0.0 0.0 .41.7 73-74 0.0 0.0 0.0 0.0 0.1 17.9 2.5 15.7 7.7 7.3 0.0 0.0 51.2 74-75 0.0 0.0 0.0 0.0 1.2 6.1 27.4 9.0 18.3 2.2 0.0 0.0 64.2 75-76 0.0 0.0 0.0 0.0 16.2 5.6 12.8 5.1 13.6 0.0 1.2 0.0 54.5 76-77 0.0 0.0 0.0 2.3 1.4 8.3 13.4 1.8 14.6 1.8 0.0 0.0 43.6 77-78 0.0 0.0 0.0 3.0 11.7 14.2 6.8 4.6 8.5 1.9 0.0 0.0 50.7 78-79 0.0 0.0 0.0 0.0 16.5 15.1 14.2 13.5 8.4 0.7 0.0 0.0 68.4 79-80 0.0 0.0 0.0 0.0 7.7 1.7 12.9 8.8 13.7 8.5 0.0 0.0 53.3 80-81 0.0 0.0 0.0 0.0 0.9 2.8 4.6 11.0 0.1 1.7 0.0 0.0 21.1 81-82 0.0 0.0 0.0 0.9 14.0 10.6 46.4 7.4 10.9 4.8 0.0 0.0 95.0 82-83 0.0 0.0 0.0 1.4 3.6 19.3 3.2 10.8 14.3 21.8 0.0 0.0 74.4 83-84 0.0 0.0 0.0 0.0 30.4 21.0 10.8 9.3 17.3 9.8 0.0 0.0 98.6 84-85 0.0 0.0 0.0 0.3 2.0 16.3 13.1 4.2 36.8 T 0.0 0.0 72.7 85-86 0.0 0.0 0.4 0.0 23.9 13.5 10.3 12.3 8.7 0.4 0.0 0.0 69.5 86-87 0.0 0.0 0.0 0.0 4.4 4.2 5.5 1.2 2.1 T 0.0 0.0 17.4 87-88 0.0 0.0 0.0 0.3 4.5 7.5 19.5 4.5 3.7 2.4 0.0 0.0 42.4 88-89 0.0 0.0 0.0 0.2 15.8 7.2 6.0 17.3 22.7 0.8 0.1 0.0 70.1 89-90 0.0 0.0 0.0 0.0 11.3 7.0 1.1 10.7 3.2 2.2 0.0 0.0 35.5 90-91 0.0 0.0 0.0 0.0 5.0 11.7 6.5 14.2 4.4 1.5 0.3. 0.0 43.6 91-92 0.0 0.0 0.0 8.2 46.9 6.7 5.0 5.9 10.8 0.6 0.0 0.0 84.1 92-93 0.0 0.0 0.0 1.3 12.2 9.2 12.0 5.3 6.9 0.5 0.0 0.0 47.4 93-94 0.0 0.0 0.0 0.0 7.7 4.5 24.3 12.0 1.7 5.5 0.0 0.0 55.7 94-95 0.0 0.0 0.0 0.0 6.2 6.5 4.2 2.1 10.4 0.2 0.0 0.0 29.6 95-96 0.0 0.0 0.0 0.7 6.6 16.1 14.5 1.2 14.1 2.3 T 0.0 55.5 96-97 0.0 0.0 0.0 T 15.3 23.7 14.2 4.0 14.3 0.6 T 0.0 72.1 97-98 0.0 0.0 0.0 T 8.6 3.3 20.4 1.1 11.6 T T 0.0 45.0 98-99 0.0 0.0 0.0 0.0 0.1 3.1 33.1 4.2 16.0 T 0.0 0.0 56.5 99-00 0.0 0.0 0.0 T 0.7 7.3 18.2 7.7 1.0 1.3 0.0 0.0 36.2 Chanhassen 00-01 0.0 0.0 0.0 T 9.8 30.2 9.4 16..5 8.6 1.3 T 0.0 75.8 01-02 0.0 0.0 0.0 0.1 9.4 8.0 9.5 3.1 15.7 20.2 0.0 0.0 66.0 02-03 0.0 0.0 0.0 0.6 1.4 3.0 5.1 10.7 13.2 1.0 0.0 .0.0 35.0
. 03-04 0.0 0.0 0.0 T 9.4 16.1 10.7 19.7 10.4 T 0.0 0.0 66.3 Twin Cities International Airport 04-05 0.0 0.0 0.0 T 0.5 1.8 8.6 8.0 6.6 T T 0.0 25.5 05-06 0.0 0.0 0.0 T 5.1 14.5 2.3 2.1 20.4 0.0 0.0 0.0 44.4 06-07 0.0 0.0 0.0 T 0.2 4.3 5.5 12.6 11.0 1.9 0.0 0.0 35.5
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nttp://cumate.umn.edtultex~tlstoncal/mspsnow.txt 07708 0.0 0.0 0.0 0.0 0.4 18.1 2.0 4.8 18.0 1.3 44.6 (as of April 14) Average.0.0 0.0 0.0 0.6 6.2 8.8 10.0 7.8 9.4 3.6 0.2 0.0 45.8 (122 years) 3 of 3 8/17/2008 10:22 AM
nttp:/uclunate.umn.eau/texvtlnstoncav/msppre.txct Twin Cities Monthly and Yearly Precipitation Totals (inches) 1891 - 2007 Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Downtown Minneapolis 1891 0.97 1.67 1.42 2.42 1.27 3.44 2.99 3.18 1.75 1.67 0.87 3.16 24.81 1892 0.05 1.37 0.97 1.27 6.66 6.7411.87 4.71 1.45 0.45 0.43 0.75 36.72 1893 0.87 1.58 2.09 5.21 2.50 1.83 1.66 6.30 2.86 1.67 1.15 2.41 30.13 1894 1.12 0.03 2.72 4.61 4.77 1.15 0.20 0.38 1.52 4.54 0.41 1.40 22.85 1895 0.88 0.42 0.44 1;68 2.90 3.67 4.37 1.92 4.26 0.05 0.70 0.15 21.44 1896 0.67 0.14 2.70 5.12 3.94 2.69 1.39 3.51 2.58 3.55 3.98 0.57 30.84 1897 1.66 1.03 3.05 1.48 1.87 9.00 4.27 1.94 1.64 1.67 0.70 0.13 28.44 1898 0.05 1.47 1.67 1.46 5.17 2.69 2.91 2.33 0.83 5.51 1.49 0.07 25.65 1899 0.77 0.87 2.40 0.57 3.36 6.03 1.54 3.16 1.31 3.17 0.38 1.37 24. 93 1900 0.62 0.31 1.50 1.76 0.43 2.21 8.15 6.67 7.44 4 .52 0.61 0.37 34.59 1901 0.31 0.26 1.84 1.58 1.57 6.25 1.64 2.65 3.80 0. 94 1.00 0.46 22.30 1902 0.44 0.47 0.30 2.70 4.33 2.00 6.05 5.94 4.03 1.40 1.74 2.61 32.01 1903 0.22 0.50 2.05 3.02 4.40 1.02 7.29 4.61 7.77 4.36 0.31 0.64 36.19 1904 0.43 0.75 1.64 1.83 3.54 3.81 4.78 5.61 3.19 4.94 0.10 0.61 31.23 1905 0.71 0.59 0.73 0.74 4.47 7.11 3.02 4.32 6.50 2.17 3.07 0.06 33.49 1906 1.55 0.35 0.76 2.2110.33 2.96 3.01 3.32 5.44 1. 93 2.52 0.76 35.14 1907 0.93 0.76 0.56 1.37 2.01 3.64 4.20 5.58 4.26 1.26 0.76 0.58 25. 91 1908 0.49 0.98 1.48 4.07 8.14 6.68 2.19 0.62 4.91 2.27 1.02 1.33 34.18 1909 1.37 2.14 0.40 2.23 3.85 2.68 5.03 2.09 2.98 2.05 2.74 2.38 29.94 1910 1.08 0.51 0.09 0.64 1.39 1.19 0.74 1.56 2.58 0.86 0.59 0.31 11.54 1911 0.71 0.89 1.25 2.55 4.10 6.93 4.62 3.65 5.83 6.42 1.25 1.95 40.15 1912 0.44 0.19 0.34 2.22 4.68 0.94 7.08 5.56 1.59 1.23 0.08 1.93 26.28 1913 0.42 0.74 1.65 1.86 2.86 2.21 7.75 1.40 4.27 2.55 0.48 0.05 26.24 1914 0.83 0.45 0.98 3.69 1.80 8.63 1.17 8.70 2.76 1.58 0.19 0.37 31.15 1915 1.37 2.01 0.93 1.87 3.98 4.91 5.92 3.49 2.57 2.59 3.62 0.46 33.72 1916 2.88 0.32 1.19 3.07 6.97 4.54 1.27 1.66 2.42 1.60 0.58 0.98 27.48. 1917 1.57 0.43 2.74 1.70 4.24 3.77 4.06 2.83 2.16 1.70 0.06 0.41 25. 67
@ 1918 1919 1920 0.38 0.55 0.93 0.43 2.02 0.84 1.84 0.46 2.71 0.91 4.32 3.44 1.71 2.23 2.67 2.83 4.99 4.04 6.19 8.43 1.30 3.73 1.25 1.88 1.47 1.14 1.95 2.31 1.69 2.79 4.06 2.73 1.24 1.71 0.68 0.62 27 27
.97
.12 27 .38 1921 0.44 0.51 2.21 2.04 3.49 3.81 3.16 2.03 3.99 0.37 1.58 0.26 23.89 1922 0.88 3.25 1.60 1.35 2.94 5.63 1.67 1.66 2.16 1.21 3.56 0.15 26.06 1923 1.01 0.53 1.08 1.99 2.97 5.04 3.12 1.98l1.61 1.19 0.45 0.41 21.38 1924 0.54 0.63 1.23 3.38 1.03 7.35 1.22 7.35 3.43 0.76 0.65 0.83 28.40 1925 0.46 0.41 0.44 1.21 2.66 4.76 4.03 0.20 3.35 0.58 0.53 0.7.8( 19.41 1926 0.71 0.55 1.61 0.58 1.13 3.76 3.49 3.72 5.'18 1. 61 1.82 1.48 25. 64 1927 0.54 0.35 2.43 2.48 3.22 6.77 1.86 2.11 4.32 2.30 1.50 2.31 30 .19 1928 0.33 1.51 0.93 2.33 2.38 2.59 3.68 5.84.2.17 3.17 0.35 0.43 25.71 1929 1.60 1.05 1.31 1.62 1.91 4.21 3.33 2.15 3.57 2.17 0.36 0.36 23. 64 1930 0.95 2.66 0.48 0.23.38 6.68 0.92 0.72 4.14 1.14 2.41 0.06 24 .16 1931 0.13 0.70.1.49 1.20 1.35 4.78 1.12 2.97 2.42 1.87 3.29 0.71 22.03 1932 1.70 0.74 1.42 2.15 2.05 1.56 4.36 3.87 0.85 2.28 1.52 23.39 1933 0.89 0.77 2.15 1.43 7.87 1.31 2.16 1.09 3.44 1.26 0.57 0.63 23.57 1934 0.68 0.17 0.68 1.57 0.21 2.30 1.40 1.61 4.86 5.64 2.38 1.23 22.73 1935 1.44 0.21 1.63 2.32 3.81 4.82 2.59 3.02 1.98 3.95 0.69 1.04 27.50
.1936 0.77 1.55 2.66 1.48 2.25 2.29 0.11 3.48 0.78 0.66 0.66 1.78 18.47 1937 1.24 0.48 1.07 2.62 5.42 3.11 0.48 4.10 1.67 1.36 0.51 0.53 22.59 1938 0.87 0.62 2.11 At 1pm on April 9th, 1938 the official observation was transferred to The Twin Cities Inte:rnational Airport.
3.27 6.97 2.96 3.36 3.45 3.24 0.84 1.29 0.77 29.75 1939 1.06 0.88 2.19 3.55 4.95 2.75 3.65 2.31 1.56 0.02. 0.97 24 .50 1940 0.37 0. 91 1.21 1.64 7.10 2.46 4.54 0.41 1.57 5.15 1.02 28.54 1941 0.74 0.89 1.87 2.91 3.29 1.98 3.66 3.47 5.52 1.05 0.85 27.00 1942 0.15 0.45 3.41 6.78 2.69 3.80 2.11 7.53 0.78 0.27 0.85 30.56 1943 0.91 0.57 0.98 4.27 4.23 3.78 1.75 2.47 1.30 1.64 0.00 22.71
. 1944 1946 0.24 1.10 1945 0. 63 1.84
- 0. 94 1.15 1947 0.71 0.20 1948 0.15 1.37 2.24 6.15 6.69 4.39 3.65 0.97 2.95 3.09 5.57 4.13 2.27 2.13 0.66 3.04 7.80 2.76 0.43 6.58 2.44 2.57 5.30 0.96 2.41 1.48 0.26 0.30 2.51 1.10 2.10 0.09 0.93 1.41 1.22 0.68 2.85 0. 60 29.08 27.20
- 28. 97 21.09 1.77 0.74 2.58 1.34 3.37 1.04 0.60 1.89 0. 67 16.95 I of2 1of2 8/17/2008 10:2 1 AM
nLtp://Ci;Untle.Lt n.euwLtexunistoncaI/msppre.t i949 1.65 0.14 3.37 1.89 0.90 2.74 6.01 2.64 2.67 1.72 0.42 0.99 25.14 1950 1.27 0.68 2.20 2.19 2.87 1.26 3.74 1.84 1.46 1.22 0.89 1.99 21.61 1951 0.44 1.71 3.00, 1.86 4.14 5.50 5.44 1.94 5.80 1.34 2.12 1.21 34.50 1952 1.05 1.20 3.09 0.59 2.86 3.98 4.56 4.18 0.42 0.01 1.28 0.45 23.67 1953 0.55 1.23 1.22 2.04 1.92 7.10 6.81 2.75 0.55 0.15 1.54 1.76 27.62
. 1954 1955 0.25 0.47 0.32 1.54 2.10 0.52 3.53 0.92 2.54 4.71 1.33 0.69 1.53 7.10 3.08 2.15 3.65 0.99 1.23 2.21 0.61 1.04 0.33 1.26 23.68 20.42 1956 0.48 0.20 1.62 0.67 1.96 6.58 5.18 5.22 0.79 1.95 1.35 0.20 26.20 1957 0.32 0.83 1.31 1. 23 3.13 4.12 6.31 5.75 1.65 1.40 1.56 0.24 27.85 1958 0.21 0.24 0.32 1.99 1.39 2.01 3.15 3.03 1.09 1.55 1.01 0.21 16.20 1959 0.11 0.61 0.59 0.64 5.03 4.07 2.60 6.60 2.29 2.43 0.63 1.28 26.88 1960 0.68 0.22 0.81 2.04 3.19 3.08 1.93 3.99 3:79 0.31 0.87 0.55 21.46 1961 0.28 0.89 2.81 2.39 3.48 1.87 2.94 2.38 3.01 3.03 1.06 1..60 25.74 1962 0.55 2.07 1.87 1.31 8.03 1.48 5.12 3.47 2.46 1.69 0.52 0.26 28.83 1963 0.46 0.41 1.18 2.07 5.06 1.91 1.53 1.55 3.47 0.81 0.52 0.60 19.57 1964 0.47 0.06 1.35 2.98 3.44 2.18 2.02 5.42 5.21 0.57 1.19 1.08 25.97 1965 0.47 1.59 4.75 3.52 7.86 4.01 4.69 4.04 4.90 0.90 1.98 1.23 39.94 1966 0.95 1.55 2.48 0.89 1.46 3.51 2.47 4.40 1.69 3.53 0.39 1.02 24.34 1967 3.63 1.59 0.96 4.07 0.61 7.53 1.36 2.79 0.63 1.73 0.09 0.45 25.44 1968 0.71 0.13 1.89 2.94 3.74 6.78 6.46 0.75 6.16 5.62 0.54 2.21 37.93 1969 2.05 0.31 0.90 1.55 1.98 2.93 2.95 0.99 0.49 2.53 0.55 2.06 19.29 1970 0.47 0.16 2.05 3.55 4.77 1.27 3.66 2.19 3.19 4.97 3.82 0.43 30.53 1971 1.22 1.74 1.21 1i. 11 3.14 3.52 3.94 1.78 2.73 5.68 2.67 0.70 29.44 1972 0.84 0.49 1.25 1.69 2.18 3.31 5.12 2.48 1.96 1.77 1.11 1.57 23.77 1973 0.92 0.84 1.12 2.32 2.48 1.06 2.90 3.05 2.08 1.29 1.97 1.10 21.13 1974 0.17 1.06 1.00 2.42 2.08 5.21 1.14 2.75 0.58 1.69 0.66 0.35 19.11 1975 2.82 0.79 1.67 5.40 3.81 7.99 0.58 4.92 1.31 0.27 4.80 0.79 35.15 1976 0.87 0.59 2.83 0.80 1.13 3.86 2.45 1.39 1.42 0.49 0.16 0.51 16.50 1977 0.65 0.93 2.66 1.84 2.86 3.57 3.72 9.31 4.43 2.34 1.42 1.15 34..88 1978 0.38 .0.24 0.79 3.63 3.79 7.09 3.19 5.77 2.47 0.19 1.84 0.88 30.26 1979 1.09 1.39 2.55 0.66 4.55 4.78 2.34 7.04 2.20 3.16 0.98 0.33 31.07 1980 0.94 0.67 1.12 0.83 2.29 5.52 2.30 3.26 3.68 0.66 0.26 0.24 21.77 1981 0.30 2.14 0.71 2.17 2.18 4.42 4.09 4.73 1.46 2.69 2.16 0.92 27.97 1982 2.45 0.63 2.09 1 .62 4.99 1.44 0.92 3.80 1.50 3.45 3.27 4.27 30.43
. 1983 1984 0.67 0.88 1.19 1.64 3.22 1.47 3.97 3.86 6.20 5.22 3.07
.2.29 7.95 3.03 3.12 5.15 3.34 2.65 2.61 5.48 4.93 0.31 1.53 2.24 39.07 36.95 1985 0.87 0.50 4.48 1.81 3.65 2.18 2.20 5.02 4.37 3.66 1.72 1.20 31.66 1986 0.90 0.84 2.03 5.88 3.48'5.34 4.11 4.44 6.90 1.77 0.62 0.31 36.62 1987 0.63 0.13 0.64 0.16 1.88 1.9517.90 3.67 1.28 0.60 2.07 1.25 32.16 1988 1.37 0.30 1.33 1.58 1.70 0.22 1.17 4.29 2.79 0.80 2.86 0.67 19.08 1989 0.52 1.04 2.19 2.66 '3.38 3.50 3.50 2.92 1.28 0.53 1.38 0.42 23.32 1990 0.10 0.77 3.66 3.80 3.36 9.82 5.06 1.71 1.88 1.23 0.65 1.01 33.05 1991 0.49 1.03 2.29 3.58 6.35 2.57 2.95 3.14 5.43 2.52 5.29 1.05 36.69 1992 0.66 0.57 1.56 1.99 1.15 3.68 5.21 4.54 5.20 2.11 1.95 1.05 29.67 1993 1.25 0.39 1.25 1.99 4.02 6.28 5.58 6.50 2.04 0.79 1.57 0.55 32.21 1994 1.17 0.78 0.32 3.77 2.21 3.09 4.12 2.90 4.74 4.65 1.39 0.53 29.67 1995 0.36 0.25 2.11 1.90 2.43 3.38 2.72 4.59 2.21 3.68 0.88 1.15 25.66 1996 1.87 0.24 1.39 0.76 2.37 4.76 2.09 1.43 1.30 3.01 5.08 1.75 26.05 1997 1.71 0.30 1.18 1.01 1.70 3.7012.60 6.01 3.19 2.03 0.69 0.31 34.43 1998 1.64 0.80 4.56 1.56 4.40 6.52 2.63 5.99 1.32 2.19 1.32 0.46 33.39 1999 2.67 0.40 1.86 3.43 6.56 3.68 4.55 2.64 2.73 0.92 0.77 0.33 30.54 2000 0.90 1.08 1.12 1.12 4.56 4.56 6.10 3.19 2.15 1.09 3.38 1.23 30.48 2001 1.21 1.33 1.09 7.00 4.53 6.35 2.12 2.31 3.50 1.28 2.77 0.74 34.23 2002 0.46 0.36 1.38 3.23 2.83 8.30 5.19 8.30 3.89 4.21 0.09 0.21 38.45 2003 0.22 0.54 1.44 2.40 6.14 4.66 2.06 1.12 2.20 0.62 0.71 0.62 22.69 2004 0.23 1.09 2.11 2.06 6.39 3.06 3.36 1.19 4.21 2.32 0.93 0.44 27.39 2005 1.21 0.96 1.37 2 .30 2.78 4.24 2.94 5.22 4.44 5.45 1.53 0.97 33.41 2006 0.71 0.32 2.01 5.97 1.66 2.81 1.29 6.90 2.44 0.41 0.92 2.13 27.57 2007 0.31 1.37 3.64 1. 11 1.99 2.05 3.29 9.32 6.04 3.63 0.09 1.48 34.32 Avg 0.85 0.83 1.62 2.23 3.40 4.18 3.51 3.51 2.91 2.06 1.45 0.93 27.58 (117 Years) 2 of 2 8/17/2008 10:21 AM
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Minnesota Climatology Working Group
- State Cirmatology Office - DNR Waters University of Minnesota home I current conditions I journal I past data I summaries I agriculture I other sites I contact us I search MinneapolislSt. Paul Metro Area Climate Page Regularly Updated Twin Cities Climate Data
" Daily Climate Observations for Minneapolis/St. Paul
" Daily Climate Observations for Chanhassen (Snowfall for the 2000-2001 to 2003-2004 Winter) m How to. Read the Monthly Summary Form w Twin Cities Climate Calendar January February March April May June July I August September October November December All-Time Twin Cities Climate Extremes
" Extreme Temperatures and Stretches of Extreme Temperatures for Minneapolis/St. Paul
" Extreme Precipitation/Snowfall Records for Minneapolis/St. Paul
" Monthly Mean Temperature/Total Precipitation Records January February March April May June July August September October November December
- Extremes of Snowfall for Minneapolis/St. Paul
- Snowfall Extremes by Month for Minneapolis/St. Paul
- Earliest and Latest First Snowfall and Snow Cover for Minneapolis/St. Paul
- Record cold windchill information for Minneapolis/St. Paul Twin Cities Climate Data Summaries
" Normals, Means, and Extremes for Minneapolis/St. Paul (1971-2000)
" Minneapolis/St. Paul Snow Data Resources
" Snowfall Statistics for Minneapolis/St. Paul
" Median Frost Dates and Other Critical Critical Low Temperature Thresholds
" Average Date of Initial Soil Freeze
" Normal Precipitation (1971-2000) for New Hope Historical Climate Data Listings for the Twin Cities Daily Maximum/Minimum Temps, Precip, Snowfall, Snow Depth ko 1890-1899 o 1900-1909 o 1910-1919 o 1920-1929 o 1930-1939 o 1940-1949 o 1950-1959 I of 2 8/17/2008 10:20 AM
I "Ui IVLILLJ ZUýUa_%ýIUIIMV Jr-agrl nup://ciimate.umn.eau.coc/twin_cmes/twm_cities.htm o 1960-1969 O 1970-1979 o 1980-1989 o 1990-1999 o 2000 - 2008
" Minneapolis/St. Paul Monthly Snowfall Time-Series (1884 - 2008)
" Minneapolis/St. Paul Monthly Precipitation Time-Series (1891 - 2007)
" Minneapolis/St. Paul Monthly Average Temperature Time-Series (1891 - 2007)
" Minneapolis/St. Paul Monthly Heating Degree Day Time-Series(1891 - 2008)
" Minneapolis/St. Paul Monthly Cooling Degree Day Time-Series (1891 - 2007)
" 104 years of Twin Cities Dew Point Temperature Records (1902-2006)
Pioneer-Era Data
- Fort Snelling Data ... 1820-1892
" Yearly Graphical Portrayal of Daily Max/Min Temperatures for the MSP area, 1820-2008
" Year-by-Year Narrative Account of Pioneer Weather (1820-1869)
(last two courtesy meteorologist Charles Fisk - Newbury Park, California) Last modified: August 14, 2008 2 of 2 8/17/2008 10:20 AM
ntup://cimate-umn-eauitext'nistoricaumspavetemp.txt Twin Cities Monthly and Yearly Mean Daily Temperature (F) 1891 - 2006 Yr Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Downtown Minneapolis 1891 24.4 13.5 25.1 49.6 58.7 66.2 66.5 68.2 67.7 50. 1 28.6 30.1 45.7 1892 13.6 22.4 29.9 43.5 51.7 64.7 71.6 70.0 63.5 53.5 29.5 17 .0 44.3 1893 7.3 12.1 25.0 40.3 54.5 72.0 74.1 69.5 63.0 50.5 32.8 14.0 42. 9 1894 12.3 15.7 36.5 49.6 59.0 73.3 77.0 72.4 64.3 50.1 28.5 28.5 47.3 1895, 6.3 12.1 30.0 53.1 59.6 67.9 70.7 70.2 6.6.2 45.0 32.0 22.6 44.7 1896 16.8 22.4 26.3 48.3 64.1 69.1 71.9 71.2 57.9 46.4 22.6 24.4 45.1 1897 10.7 20.1 24.7 46.5 57.4 65.0 74.5 66.9 68.8 54.5 29.6 15.3 44.5 1898 23.0 20.6 34.7 45.4 58.2 68.7 73.3 69.6 64.2 45.9 29.7 14.1 45.6 1899 13.2 7.9 17.1 48.2 58.3 67.7 73.4 72.2 59.4 52. 8 41.2 21.4 44.4 1900 21.3 8.6 25.6 52.8 62.0 68.8 71.0 76.7 61.5 57 .8 28.6 21.0 46.3 1901 15.2 12.3 29.0 .49.5 59.3 69.1 77.4 72.3 60.0 51.7 31.0 15.9 45.2 1902 18.7 18.2 36.2 44.6 60.2 64.1 71.6 66.5 57.3 49.6 36.1 15. 6 44.9 1903 14.6 14.8 33.6 45.1 59.1 65.5 69.4 65.1 58.3 50.0 29.8 12. 6 43.2 1904 7.3 5.2 27.7 41.0 57.6 65.7 68.4 66.3 59.7 48.8 38. 6 19.9 42.2 1905 7.4 11.9 35.1 44.0 54.2 64.9 69.8 70.8 63.7 45.6 35.3 23.9 43.9 1906 20.0 16.3 22.5 50.4 55.6 66.5 70.8 71.3 65.5 47.9 33.6 19.8 45.0 1907 7.2 17.5 31.4 37.1 46.9 65.6 71.2 69.1 58.5 47. 9 34. 6 25.0 42.7 1908 19.9 21.5 29.3 46.7 56.3 65.1 72.7 69.0 68.0 49.1 36.3 21.1 46.3 1909 14.5 18.0 29.2 38.5 55.6 67.4 71.6 73.9 61.0 46.9 37. 6 12.8 43.9 1910 15.4 11.5 45.0 50.6 54.8 71.2 73.9 69.1 61.5 54.0 27. 9 19.1 46.2 1911 11.2 22.0 36.0 45.8 63.6 73.1 71.1 66.7 59.3 45.9 23.0 24.1 45.2 1912 -2.7 13.6 24.2 48.7 59.0 65.2 71.3 66.8 61.2 51.4 37.5 24.0 43.4 1913 13.1 12.7 25.7 49.0 55.7 70.5 70.5 72.9 61.4 46.4 40.2 30.5 45.7 1914 21.5 7.2 30.6 44.7 60.5 66.8 75.1 69.2 62.4 55.4 36.0 12.2 45.1 1915 12.6 25.5 27.9 56.0 52.2 62.5 67.2 65.5 60.7 51.4 35.5 22.7 45.0 1916 10.1 11.1 26.0 43.6 56.9 62.9 79.1 72.1 59.8 46.9 34.6 12.4 43.0 . 1917 1918 1919 1920 7.1 5.7 27.2 4.1 18.0 39.1 22.3 16.4 30.9 7.7 16.0 1921 22.1 24.2 31.3 33.6 41.9 44.3 45.2 38.6 50.6 54.6 60.1 58.2 59.3 60.1 63.3 73.0 66.8 70.7 70.2 74.6 68.4 70.6 74.4 77.5 67.5 70.9 69.4 70.0 70.4 60.0 55.1 64.3 65.5 64.0 38.6
- 50. 9 44.7 56.5 51.4 38.8 26.7 10.9 33.1 23.6 27.5 20.5 9.9 37 .8 28.5 40.6 45.5 44.5 45.1 48.0 1922 13.8 11.6 32.4 45.8 63.3 69.4 70.0 73.5 65.7 53.-6 39.6 18.2 46.4 1923 18.0 10.3 21.5 44.0 59.7 71.2 76.0 67.3 63.1 48.0 39.5 29.9 45.7 1924 8.0 21.7 29.9 44.3 50.4 64.6 69.9 68.1 57.6 56.6 33.1 9.3 42.8 1925 14.3 21.6 35.2 53.2 55.4 67.2 70.8 72.4 *65.8 38.3 32.6, 16.7 45.3 1926 17.0 23.7 26.1 44.3 62.5 64.1 72.7 69.8 57.5 47.2 27.5 15.0 44.0 1927 13.7 23.1 35.5 46.4 53.8 64.9 69.5 67.0 63.1 51.8 30.0 8.8 44.0 1928 17.2 21.7 32.9 39.6 61.1 62.6 72.3 70.4 58.3 50.7 36.4 25.7 45.8 1929 2.0 10.5 34.2 46.8 54.9 65.7 74.1 70.9 59.0 49.9 29.0 18.1 42.9 1930 7.0 27.4 31.7 49.4 58.4 68.6 75.3 75.3 62.4 47. 9 37 .1 23.1 47 .0 1931 25.9 32.0 31.4 50.1 56.1 73.7 76.9 70.6 68.7 54.4 40.3 30.0 50. 9 1932 18.1 19.4 21.9 46.7 59.1 72.3 74.7 72.7 62.0 46.4 30.7 16.8 45.1 1933 23.1 14.3 30.5 44.9 58.8 78.0 77.1 70.8 67.4 47.4 30.7 17.0 46.7 1934 21.2 18.6 29.0 46.0 68.7 73.1 7.6.2 70.1 57.3 54.0 38.8 15.0 47.3 1935 11.0 25.5 34.1 44.1 54.9 64.3 79.9 72.6 62.2 48.6 28.6 17. 6 45.3 1936 3.9 -0.0 29.9 39.8 64.2 66.4 81.4 74.7 66.7 46.4 30.1 22.6 43.9 1937 .5.5 13.5 27.0 44.5 59.8 67.2 77.1 177.7 63.5 46.7 31.9 17. 9 44.4 1938 13.5 21.8 38.1 At 1pm on April 9th, 1938 the official observation was transferred to The Twin Cities Inte rnational Airport.
46.0 56.8 67.9 73.5 73.8 62.3 55. 4 31.5 20.14 46.8 1939 19.7 9.2 42.4 63.9 68.6 74.6 71.3 64.2 47.5 37.7 27.7 46.4 1940 6.5 19.4 43.7 56.0 68.1 75.8 68.8 65.3 54.0 27.8 22.0 44.3 1941 17.4 14.8 52.9 63.3 69.1 74.7 72.6 63.2 50. 9 36.5 26.3 47.5 1942 20.5 20.8 52.2 56.0 66.8 71.5 70.5 57.3 50.3 33.6 15.5 45.9 . 1943 1944 1945 1946 1947 7.9 26.5 12.7 15.2 21.6 17 .4 20.6 17.7 16.8 14.8 44.4 55.7 70.4 74.6 71.9 58.2 43.0 62.5 69.7 71.4 71.7 61.7 43.9 52.1 61.4 70.4 71.0 60.2 51.1 55.2 67.1 73.6 68.8 59.8 42.1 53.5 64.6 72.8 78.2 63.1 49.5 51.2 48.6 51.3 59.3 29.5 37.8 31.8 33.1 26.6 23.4 19.3 13.4 20.6 17.7 43.9 46.8 43.6 46.3 45.3 1948 10.1 15.6 50.0 58.5 67.3 75.2 72.7 67.6 51.2 35.1 20.0 45.9 8/17/2008 10:19 AM
littp://Cliinate-umn-nectu/texviulstonicai/mspavetemp.txt 1949 14.1 13. 4 29.5 47.1 62.0 7 2'.2 76.4 74.3 58.5 52.9 37.2 20.4 46.5 1950 6.8 16.4 24.0 36.9 56.1 67.8 70.5 67.7 62.6 53.7 27.8 12.4 41.9 1951 9.3 17.5 21.1 42.3 62.0 64.7 71.8 68.1 56.9 49.0 25.6 16.4 42.1
. 1952 1953 1954 1955 1956 12.5 16.7 23.7 17.9 26.1 30.6 50.1 40.9 58.7 58.5 69.6 70.9 73.2 72i.5 69.1 73.3 63.1 62.1 44.4 57.4 10.3 31.8 27.9 46.5 53.1 71.2 74.4 70.4 60.5 47.7 38.3 23.4 14.1 12.'7 14.4 15.0 25.7 25.9 53.9 41.8 63.3 68.2 57.8 73.4 78.0 69.9 76.1 71.2 63..0 58.7 51.4 56.5 35.3 39.3 25.6 34.1 23.4 22.0 12.2 23.9 45.8 46.9 46.3 45.5 45.1 1957 9.9 20.6 30.4 46.9 57.0'67.3 76.5 70.7 59.4 48.7 32.7 25.3 45.5 1958 22.4 15.5 33.3 47.9 60.8 63.3 70.3 71.4 62.7 53.1 35.7 15.9 46.0 1959 10.6 17.2 34.0 47.1 60.6 70.8 74.5 75.2 63.1 44.4 25.4 30.1 46.1 1960 17.5 17.8 19.8 45.9 57.0 63.8 71.7 72.1 61.8 48.7 33.3 16.8 43.9 1961 12.0 22.5 32.0 38.5 54.7 68.1 71.0 71.3 59.1 52.2 33.5 15.3 44.2 1962 7.1 11.7 24.5 42.2 60.6 66.2 67.5 68.3 56.4 50.2 35.0 19.0 42.4 1963 2.9 12.1 34.2 47.4 55.4 69.8 73.5 68.9 62.2 58.1 38.3 10.0 44.4 1964 20.0 23.9 25.8 46.8 61.5 68.7 76.0 68.5 58.9 48.2 35.0 14.8 45.7 1965 10.0 11.8 19.5 41.8 58.7 66.5 70.5 68.6 52.8 50.7 33.1 28.0 42.7 1966 3.3 16.3 35.8 42.2 53.6 68.4 76.8 68.2 60.3 47.5 30.1 18.1 43.4 1967 14.6 8.7 *29.8 44.7 52.3 66.9 68.8 66.2 60.3 46.3 30.7 21.8 42.6 1968 14.3 15.2 38.8 48.5 53.4 67.2 71.1 70.7 61.1 50.7 34.0 16.9 45.2 1969 9.4 19.3 24.1 49.3 60.6 61.8 73.6 74.4 63.0 46.5 33,.6 20.3 44.7 1970 5.6 15.4 26.0 46.1 58.5 71.2 75.2 71.9 61.2 49.6 32.7 18.2 44.3 1971 6.5 17.0 28.0 47.0 55.4 71.5 68.8 69.6 62.8 51.4 32.7 18.4 44.1 1972 5.5 10.5 26.5 41.9 61.3 66.0 68.5 69.8 57.9 43.7 32.2 11.3 41.3 1973 17.4 21.6 40.2 44.4 55.2 69.5 73.8 73.4 60.1 53.8 34.3 16.7 46.7 1974 11.9 16.9 29.5 47.1 54.4 65.5 76.6 67.3 55.3 49.8 33.7 24 .4 44.4 1975 14.5 15.5 22.1 38.9 60.9 68.8 76.3 71.7 57.7 52.8 37.5 21.3 44.8 1976 11.6 27.8 31.4 51.8 58.9 71.7 76.1 73.3 61.8 44.6 28.3 13.6 .45.9 1977 0.3 22. 7 37.5 53.0 66.9 68.4 74.8 66.1 60.5 47.1 30.8 14.4 45.2 1978 5.5 11.6 30..0 45.2 61.8 67.8 71.1 72.2 67.3 49.8 32.5 15.2 44.2 1979 3.2 10.0 28.9 44.0 55.5 67.3 73.6 69.9 63.4 46.6 31.7 26.0 43.4 1980 15.3 15.3 27.3 49.2 61.5 67.6 75.2 70.7 59.5 4.5.1 36.6 19.8 45.3
. 1981 1982 1983 1984 1985 18.0 2.3 23.4 15.8 37.7 29.0 49.1 43.8 57.1 67.0 62.5 63.7 70.9 75.6 69.3 71.8 60.0 60.9 19.6 26.9 34.2 42.3 54.6 68.0 77.2 76.8 62.6 48.4 34.0 12.0 10.1 27.5 16.5 24.8 35.6 47.1 52.1 56.0 62.2 69.7 72.2 63.9 73.9 73.5 67.6 57.2 59.9 46.7 50.3 50.7 47.5 38.0 31.5 33.3 17.5 25.7 3.7 17.9 4.
'44.4 45.7 45.2 24.8 7.7 43.5 1986 17.5 15.7 33.9 49.6 59.4 68.6 73.9 67.1 59.8 49.2 28.2 24.7 45.6 1987 21.2 31.6 38.7 53.5 63.5 72.8 76.0 69.0 62.5 44.6 37.9 25.0 49.7 1988. 10.4 13.9 33.8 47.4 65.4 74.4 78.1 73.9 62.4 44.0 32.7 20.5 46.4 1989 21.2 8.6 26.6 45.3 57.5 68.4 76.4 70.8 60.9 49.9 28.0 10.6 43.7 1990 26.3 23.7 35.7 46.8 56.3 69.5 71.3 70.6 64.4 48.1 37.4 16.9 47..3 1991 12.5 24.4 34.3 49.1 61.9 72.9 72.3 71.1 59.0 47.2 24.5 21.2 45.9 1992 21.9 28.0 33.1 43.6 60.5 65.6 65.8 65.9 59.6 47.4 31.4 21.2 45.3 1993 14.6 17.2 29.5 44.2 57.2 64.5 70.3 70.4 55.0 46.5 30.6 22.2 43.5 1994 4.4 13.2 34.7 45.9 60.7 69.9 70.1 67.4 64.3 52.2 38.0 24.5 45.5 1995 18.5 19.3 35.0 42.2 56.9 71.2 73.1 74.7 60.2 48.6 27.4 19.1 45.5 1996 10.2 18.0 25.3 41.4 55.6 67.4 70:'0 70.5 62.2 48.8 27.4 13.7 42.6 1997 10.3 19.9 29.3 43.0 53.4 '70.0 71.0 68.8 62.4 50.2 28.1 26.9 44.5 1998 19.1 31.9 31.9 50.7 63.4 64.9 72.6 71.6 66.6 51.2 37.2 24.6 48.8 1999 12.4 27.9 33.8 49.3 60.1 67.3 76.2 70.1 61.1 49.6 41.8 25.6 47.9 2000 15.9 27.9 41.1 46.7 60.9 66.1 72.4 72.2 61.6 53.3. 31.2 7.6 46.4 2001 20.0 11.8 27.5 48.4 59.7 69.1 75.9 74.2 60.9 48.6 46.4 27.6 47.5 2002 24.6 28.3 24.9 45.7 54.6 71.1 77.0 70.9 *65.5 41.8 33.0 26.2 47.0 2003 15.3 15.7 31.3 48.3 57.7 68.2 73.7 75.3 62.5 51.0 32.1 25.0 46.4 2004 11.2 21.6 36.0 49.9 56.6 65.4 72.2 66.3 67.4 50.1 37.7 22.6 46.4 2005 15.6 26.4 31.8 52.0 56.4 73.4 76.8 71.7 66.3 52.3 36.6 19.4 48.2 2006 28.6 20.0 33.6 53.5 61.9 70.9 79.6 72.1 59.6 45.9 36.8 29.1 49.3 2007 19.7 13.5 38.4 47.2 64.2 72.7 76.0 71.1 64.8 54.3 34.5 16.6 47.8 Avg 13.6 17.7 30.4 46.2 58.3 68.1 73.3 70.7 61.6 49.6 33.1 19.6 45.2 (117 Years) 2 of 2 2 of28/17/2008 10:19 AM
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- ITable of Contents
*lm m Climate Introduction PRISM How to Use this Guide Climate Reports 1 Climatic Data Element Descriptions Climate Data 2 Climate Station Metadata 3 Climatic Element 4 Climate Data Measurement Networks General Information 5 Climate Glossary 6 NWCC Climatic Data Access Network o Temperature and Precipitation Summary (TAPS)
Snow Survey Programs o Frost Free Days (FROST) by State o Growing Season (GROWTH) Find a Service Center o Wetlands Determination (WETS) 7 Climatic Data and Conservation Practices States and Regions IZntroduction TOCI National Centers IThe Natural Resources Conservation Service is charged with management of not only soil, but all five SWAPA
'resources (soil, water, air, plants, animals), and human considerations. SWAPA management requires an understanding of the resources, as well as interactions between resources. Many concerns about the resources can be addressed through climate information and specific climatic data.
Climate is an important factor driving the agriculture of a given region (along with soils, water available for Irrigation, societal influences, economics, others). Under many situations, climate is THE determining factor which defines which crops can be grown in an area. For instance, although the soils and economics of North Dakota may support growing cotton, the climate there (specifically temperature and precipitation) would not allow cotton to grow and mature. This publication concerning climatic data is oriented to the NRCS role in American agriculture and natural resource conservation. It describes the NRCS National Water & Climate Center (NWCC) and its network of liaisons in each NRCS state office. How to Use this Guide FTC1 This guide is divided into 7 sections. Section 1 contains detailed information about climatic data elements, measurement methods, and problems associated with collecting climatic data. Sections 2, 3, and 4 provide material to help understand data collection systems. Section 5, Climate Terminology, contains definitions of climatic terms. Section 6 explains how climatic information can be obtained. Climatic data needs associated with a particular conservation practice are listed in Section 7. I Climatic Data Element Descriptions,Measurement Methods, and ErrorsAssociated with it's Collection. [TOC The following description of climatic data elements is a condensation of the materialcontained in the National Weather Service Observing Handbook No.,2, Cooperative Station Observations,the Weather Station Handbook an Interagency Guide for Wildland Managers, and the American MeteorologicalSociety Glossary of Meteorology. Statisticalanalysis of climatic data generates descriptive information which reflects the average atmospheric conditions at a location, as well as generatingprobabilitiesthat extreme events will occur. Any statistical analysis of climatic data, due mainly to the limited number of samples available, must follow the rules for statisticalanalysis. An importantrule governing small sample analysis requires a minimum of 30 samples. This does not mean that climatic data with less than 30 years of data can not be analyzed, but that some adjustment be made to estimate what a 30 sample set would produce. AIR TEMPERATURE - Temperature is a measure of the hotness or coldness of air. It is measured on some definitive temperature scale. Two scales are commonly used. The Fahrenheitand Centigrade temperature I ofll1 8/17/2008 10:14 AM
-- Y. -QLAV1nal vv aUoi aUu %-iUIIt1IMU-IIV - %....iuiiii 'UOUuAS - Utenera... nap:/fwww.wcc.nrcs-usua-gowctimate/roguiae-nuniifgrowtn npnw~c~rsua~o/lnt/oua~unrw scales establish the freezing of water at 32/0 degrees respectively and boiling point at 212/100 degrees respectively. The Fahrenheitscale is used most frequently in the US and Centigrade throughout the rest of the world. Air temperature is usually measured with either a liquid-in-glass maximum and minimum thermometer mounted in a vented, wooden box or with an electronic sensor. It is important that thermometers be shaded from sunlight to avoid an erroneously high measured temperature. Instrumentshelters are designed to rectify this problem. For more information on instrument shelters, see the Weather Station Handbook - an Interagency Guide for Wildland Managers. EVAPORATION - Evaporationis the physicalprocess by which a liquid is transformed to a gaseous state. Evaporation Is influenced by solarradiation,air temperature, vapor pressure, wind, and possibly atmospheric pressure. Evaporation varies with latitude, altitude, season, time of day, and sky condition. Accurate evaporationreadings requires carefulmaintenance of an evaporation pan which contains water. The water depth is measured daily and adjusted for any precipitation which may occur. PRECIPrTATION - Precipitationrefers to all forms of water, liquid or solid, that fall from the atmosphere and reach the ground. Precipitationincludes, but is not limited to, rain, drizzle, snow, hail, graupel, sleet, and ice crystals. It is one of the most basic data elements collected by any climate station. Dew, frost and rime are excluded, since they are a result of water vapor in aircondensing or freezing onto a surface. The standardU.S. precipitationgage has an eight inch diameter mouth and height of about 30 inches. Non-recording gages simply collect precipitation; amount of precipitationmust be measured by an observer. Recording gages have instrumentationwhich records the time, duration, and intensity of precipitation.Most recording gages store information on a paperstrip, which is generally changed weekly by an observer. Precipitationintensity and duration, useful information for many NRCS design activities, can be derived from Information gatheredby precipitationgages. The biggest factor in precipitationmeasurement erroris wind. Strong winds during precipitation events can cause considerable differences between measured and actual precipitation. Measurement errors can also result from, small amounts of dew, frost, and rime accidentally included in the total measured precipitation.Even with careful placement, all gages underestimate the real precipitation,particularlywith snowfall. NEW SNOW - New snow is the incrementalamount of snow that has fallen since the last snow depth observation. Delineating between new snow and old snow presents a challenge. A snow board (generally a sheet of plywood) can provide an artificialsurface at the top of the existing snow. Snow boards are laid on top of old snow when there is any possibility of new snow falling. After each observation of new snow, the board is cleaned and placed in a new location. Boardplacement and measurement location are the greatestsource of errorin determining new snow. SNOW DEPTH - Snow depth is the actual depth of snow on the ground at the time of measurement. Snow depth is usually measured daily and determined to the nearest whole inch with a calibratedstick, such as that used with the 8-inch non-recording rain gage, or a ruler or yardstick. Snow should be measured in several locations and averagedto avoid errors induced by drifted snow. SNOW WATER EQUIVALENT - The water equivalent of snow is the depth of water that would be obtained by melting the snow cover. Water equivalent of snow is continuously measured (weighed) by recording gages which are winterized with an antifreeze solution. Fornon-recording gages, the snow catch collected by the standardrain gage (with the funnel and small tube removed) is melted by adding a known amount of warm water. The total amount is then measured and the added amount of warm water subtractedto yield the observed water equivalent. Most snow water equivalent measurement errors are associatedwith not selecting a representativelocation or the mechanics of subtracting water added to the total catch. SOIL TEMPERATURE - Soil temperature measures the hotness or coldness of soil. Soil temperature is very important to the agriculturalindustry. Most seeds requirea certain soil temperature in orderto germinate. Soil temperaturesare commonly measured at 2, 4, 8, 20, 40, 60, and 120 inches with the 4 inch reading being the most frequently observed. Readings are usually observed and recordeddaily. Maximum, minimum, and current temperaturesare generally recordedabove 8 inches. At greaterdepths, where temperaturechanges more slowly, only the current temperatureis normally recorded.Different species of plants have specific soil temperature ranges in which they will grow. SOLAR RADIATION - ZNCOMZNG - Incoming solar radiationis the total electromagneticradiationemitted by the sun striking the earth. Much solar radiationis absorbed by airmolecules, reflected back into space, or refractedas it passes through the atmosphere. A pyrheliometermeasures the direct solar radiationthat passes through the atmosphere unimpeded. It consists of an enclosed radiation sensing element with a small aperture through which the directsolar rays enter.A pyranometermeasures the combined incoming direct solar 2.ofll 8/17/2008 10:14 AM
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USUd.gUV/t~lfftldLC`/ IgUlUt.nUMIf~grOWM radiation and diffuse sky radiation. It is mounted such that it views the entire sky. Both instruments can be connected to electronic recording devices to collect the measurements. Solar radiationsensors must be cleaned regularlyand exposed properly to accurately measure solar radiation. WIND - Wind is the motion of airrelative to the surface of the earth. Wind speed and direction, the two primary elements, are usually measured with an anemometer and wind vane, respectively. Wind speed is generally measuredin miles per hour; direction is measured in degrees to the nearest ten(s) (10 to 360) with 360 degrees being north, 90 degrees being east, 180 degrees representing south, and 270 degrees being west. Wind measurement accuracyis primarily influenced by sensor height and nearby objects. 2 ClImate Station Metadata[TOC7 Climate Stations are locations at which climatic data are gathered. Biographicaland index information describing the climatic station, called "Metadata",are used in conservation applicationsand resource evaluations. STATION ID - Identificationnumber for the climate station assignedby the agency responsiblefor the particularstation. STATION NAME - The full name of the climate station as recognized by the agency responsible for the climate station. STATION LATITUDE - Latitude defines a site's location based on its relative distancefrom the equator going toward the North or South poles. Station latitude is measured in degrees, minutes, and seconds, with 0 degrees being on the equator,and 90 degrees north or south being the North and South Poles, respectively. The latitude of a particularclimate station Is determined by the agency managing the station and is generally recordedto the nearest minute. STATION LONGITUDE - Longitude defines a sites relative distance, up to 180 degrees, west or east of a North-South line running through Greenwich, England. The longitude of a particularstation is determined by the agency managing the station. Measurement is generally made to the nearest minute. STATION ELEVATION - The elevation of a climate station is usually measured in feet above mean sea level. 3 Climatic Element [TOCi A climatic element is a measured parameterwhich helps to specify the climate of a specific location or region, such as precipitation,temperature,wind speed and humidity. Descriptive terminology for climatic elements are: ELEMENT NAME - The full descriptionof the element being referenced at the climate station (i.e. maximum temperature). ELEMENT ZD - Is a shortened identifier for the element, usually 4 charactersin length (i.e. TMAX(maximum daily temperature), TMIN(minimum daily temperature), PRCP(precipitation,etc). ELEMENT DURATION - The interval between measurements of a data element. Common data element durationsavailablefor the station could include monthly, daily, or hourly. 4 Climate Data Measurement Networks [TOC7 National Weather Service CooperativeStation Network Cooperative stations generally record daily precipitationand/or maximum and minimum temperature. Several other weather parametersmay also be observed, such as evaporation, wind movement, and soil temperature. The following table lists specific climate elements and the number of National Weather Service stations which measure it: DATA ELEMENT NUMBER OF MEASURING STATIONS Precipitation 10,700 Snow Depth 10,700 New Snow 10,,700 Temperature 7,000 Wind 500 3 of H1 8/17/2008 10:14 AM
PiX Ndtiuiidi wvuLtur du tIuitutu %ýunwr - t-umate rroauctS - Li.enera... ntEp://www.wcc.nrcs.usaa.gowciimate/rogutue.ntinti;growtji nt~iw~c~rsua~oiimtioucenmnrw Evaporation 300 Incoming Solar Radiation 250 Soil Temperature 300 Natural Resources ConservationService (NRCS) The NRCS operates an automated network of approximately 600 stationsin the western U.S. called SNOTEL (SNOwpack TELemetry). Begining October 1st these stations report accumulatedseasonal precipitation, snow water equivalent, and temperature (maximum, minimum, current and average) daily. This network was establishedin the late 1970s to support water supply forecasting. It uses meteorbursttechnology to transmit data from remote sites to data gathering locations. SNOTEL.augmented and partiallyreplaced the cooperative network of manualsnow courses that NRCS acquiredand established the mid 1930s. 5 Climate Glossary[TOCi The following lists terms which provide descriptive information for climatic datasets: ALBEDO - The ratio of the amount of radiationreflected by a body to the amount of radiationincident upon it; expressed as a percentage. CLIMATE - the synthesis of weather, or averaging of weather conditions over a given time period. DEGREE DAYS, COOLIrNG - A value used to estimate the energy requirements for airconditioning of homes and buildings. One cooling degree day is given for each degree the daily mean temperatureis above 75 degrees Fahrenheit. DEGREE DAYS, GROWING - Growing degree days (GDD) measures the day to day accumulation of the difference between the average daily temperatureand a threshold temperature for a specific crop. GDD's give an indication of the amount of heat available for crop growth. DEGREE DAYS, HEATING - A value used to estimate the energy requirements for heating homes and buildings. One heating degree day is given for each degree the daily mean temperature is below 65 degrees Fahrenheit. DEWPOINT - The temperature to which airis cooled for water vapor to begin condensing. DRIZZLE - Very small, numerous, and uniformly dispersedwater drops that may appearto float while following air currents. Unlike fog droplets, drizzle falls to the ground. DURATION - the period or time increment to which an observed or computed value applies. EVAPORATION - Evaporationis the physical process by which a liquid is transformedto a gaseous state. EVAPOTRANSPIRA TZON (ET) - The combined processes of evaporation and transpiration. FOG - A visible collection of minute water droplets suspended in the atmosphere near the earth's surface. Fog reduces visibility below one kilometer (0.62 miles). FREEZE - A freeze occurs at any time the surface air temperaturereaches 28 degrees or less. This temperature causes damage to most vegetation except certain species which are resistantto freezing. FREEZE FREE PERIOD - Freeze free period is the number of consecutive days where the air temperature does not fall below 28 degrees Fahrenheit. FREEZE, KrLLrNG - A killing freeze occurs at or below 24 degrees Fahrenheitand causes permanent damage to almost all vegetation. FREEZE FREE PERIOD, KILLING - Killing freeze free period is the number of consecutive days where the air temperaturedoes not fall below 24 degrees Fahrenheit. FROST - Frost is the process of deposition of frozen atmospheric water vapor on surfaces whose surface air temperatureis below 32 degrees Fahrenheit.A frost can occur at any time the surface air temperaturefalls to 32 degrees Fahrenheitor less. This temperature may cause damage to very young vegetation or vegetation that has no resistance to frost. Most fruit falls in this category. FROST FREE PERIOD - Frost free periodis the numberof consecutive days where the surface airtemperature does not fail below 32 degrees Fahrenheit. 4 ofll 8/17/2008 10:14 AM
ENKL'A,J 11auluiiat vYYa1 al cU %...IWLU 1Lc LVIIW - t.ItUhI4W rrouucts - uenera...rnpwwwcncsuagoimae nup://www.wcc.nrcs.usua.gov/cinnate/roguiae.nunifFgrowtn guenwgom FROST, FIRST - First Frostis the first date following the growing season that the minimum temperaturedrops below an index temperature,usually 32 degrees Fahrenheit.The first frost usually occurs in the fagl of the year, but it may occur during the winter months, or in some locations may not occur at all. FROST, LAST - Last Frost is the last date preceding the growing season that the minimum temperaturedrops below an index temperature, usually 32 degrees Fahrenheit. The last frost usually occurs in the spring of the year but may occur very early in the summer or not at all in some locations. Firstand Last frosts are analyzed at three temperatures (32, 28, and 24 degrees Fahrenheit)specifically relating to damage caused to vegetation by the sub-freezing temperatures. GROWING SEASON - Growing Season is the number of consecutive days where the temperaturehas not gone below an index temperaturefor specific vegetation. If vegetation is more resistantto cold temperatures the index temperature would be lower. The index temperaturesused in growing season analysis usually include 24, 28, and 32 degrees Fahrenheit. GROWING SEASON PERIOD - Growing Season Periodis the period of time, beginning date and ending date, that defines the period that the temperaturehas not dropped below the index temperature. HAIL - Precipitationin the form of balls or Irregularlumps of ice with a diameter of 5 mm or more, always produced by convective clouds, nearly always cumulonimbus. HUMZDITY, RELATIVE - A measure of the amount of water in the aircompared to the amount of water vapor the air has the potential to hold. (Note: the potential of airto hold water changes with airtemperature. Therefore, relative humidity can change as airtemperature changes without an actualchange in the amount of water vapor.) INDEX TEMPERATURE - A temperature which denotes the beginning of a specific event such as 28 degrees Fahrenheit.The 28 degree temperaturedenotes a freeze that can damage plants. NORMAL - "Normal"is an average of any of the climatic elements calculatedfor a specific time period. The beginning and ending years of the normal period are established by the World Meteorological Organization. This organization has defined the currentstandardaveragingperiod for "Normals"as 1971 through 2000. Normals have been established as the standardperiod that will be used in analysis of climatic data to allow for comparabledescriptive information representativeof averageconditions over the time period. PERIOD OF RECORD - The time interval during which meteorological and climatic data have been gathered at a climatic station. PRECIPITATION - Precipitationrefers to all forms of water, liquid or solid, that fall from the atmosphere and reach the ground. Precipitationincludes, but is not limited to, rain, drizzle, snow, hail, grapple, sleet, and ice crystals. PROBABILITY - Probabilityis a statisticalprocess that provides for the analysis of data to determine the potential of an individual value to occur at a specified time, in a given year, or in a given period of time. An example might indicate that a certain value has a 10 percent chance of occurrence in any year, or that the value has a chance of returning once in a period of ten years. RAIN - Precipitationin the form of liquid water drops which have diameters greaterthan 0.02 in (0.5 mm). WIND ROSES - A type of analysis that describes wind measurements graphicallyand tabularlyas a combination of the cardinaldirection that the wind was coming from and the averagespeed from that direction for a particulartime interval. SLEET - A type of precipitationconsisting of transparentor translucentpellets of ice 5 mm or less in diameter. Sleet forms when raindropsfall through a layer of below-freezing air near the earth'ssurface. SNOW WATER EQUIVALENT - The water equivalent of snow is the depth of water that would be obtained by melting the snow cover. SOLAR RADIATION - The total amount of energy emitted by the sun. SOLAR RADIATION, INCOMING - Incoming solarradiation is the total electromagneticradiationemitted by the sun striking the earth. TEMPERATURE - Temperature is a measure of the internalenergy of molecular motion in a substance. 5 ofll 8/17/2008 10:14 AM
-___. - - -. .. t.ýann . n-v-.--.- - '.l a L I tYUUUL.W - '..Ji1ica 4... LILLIJ./f VYVYVF. VV".IULO.UOUa.rVJVf%,ILLII,2LUI jV6UjUjU.UUjjjttgjjjWUj THRESHOLD TEMPERATURE - A temperaturethat denotes the boundary condition for a specific event. For example, a crop specific temperature below which the growth of that crop is minimal.
TRANSPZRATION - The process by which water in plants is transferred to the atmosphereas water vapor. WEATHER - the instantaneousor short-term state of the atmosphere. WIND - Wind is the motion of airrelative to the surface of the earth. 6 National Water & Climate CenterlClimaticDataAccess Network fTOC7 The NaturalResources Conservation Service's National Water & Climate Center was createdto provide the climatic data analyses needed by NRCS employees and offices to perform conservation activities. Each state and nationalcenter has been assigneda Climatic Data Liaison (CDL) to deliver climatic data to field offices as well as other offices in the state requiringclimatic data. These Climatic Data Liaisons make up what is known as the Climatic Data Access Network (CDAN). CDAN provides a corp of knowledgeable individuals to assist NRCS field offices in the analysis of climatic data. The mission of NWCC/CDAN is to access, obtain, evaluate, manage, and disseminate the climatic data needed to support agency programsand activities nationally. The Vision of NWCC/CDAN is "A dynamic, agency-wide climate service network -- providing data and analyses required for integrated ecosystem management." A wide variety of daily, monthly, and annual data are available through NWCC/CDAN, including air and soil temperature, evaporation, wind movement, snow depth, snow water equivalent and precipitation. Climatic interpretations(probabilitiesand statisticalsummaries) for temperatureand precipitation,growing season and constructioninformation, rainfall frequency, and information for agronomic and engineeringmodels are available through the Network. The following examples demonstrate the variety of information available through NWCC/CDAN: TEMPERATURE AND PRECIPZTATZON
SUMMARY
(TAPS) [TOC7 The TAPS table gives a month by month summary andprobabilityanalysis of temperatureand precipitation. TAPS Station : DECORAH, 192110 Start yr. - 1971 End yr. -,2000 Temperature: 30 years available out of 30 requested in this analysis Precipitation: 30 years available out of 30 requested in this analysis Temperature I Precipitation
--- I----------------------------
I I 12 yrs in 101 I 12 yrs in 101 I I I will have I avg I I will have javg no I
. I- I---------------- Ino ofl I----------- lof dayslavg Month I avg I avg I avg Imax I min [grow I avg I lessl morelw/ 0.101snow-Idailyldailyi Itemp.Itemp.ldeg I I thanl thanlinch orlfall I max I min I I>thanl<thanldays*l(in.) (in.) I (in.) more January 1 23.71 5.31 14.51 49 1 -29 1 11 0.741 0.271 1.141 2 1 7.0 February 1 29.61 10.71 20.11 54 1 -22 1 31 0.821 0.321 1.291 2 1 7.2 March 1 42.01 23.61 32.81 73 1 -10 1 551 1.891 1.051 2.641 4 1 7.5 April 1 58.21 36.31 47.21 84 1 14 1 2561 3.421 1.961 4.711 6 1 1.6 May 1 70.81 47.71 59.21 89 1 27 1 5971 3.821 2.601 4.941 7 1 0.0 June 1 79.71 56.71 68.21 95 1 39 1 8461 4.201 2.291 5.891 6 1 0.0 July 1 83.71 61.41 72.61 97 1 46 1 10101 3.991 2.281 5.511 6 1 0.0 August 1 81.51 59.01 70.31 95 1 42 1 9371 4.031 2.041 5.761 6 I 0.0 September 1 72.71 50.71 61.71 91 1 29 1 6511 3.931 1.531 5.951 6 1 0.0 October 1 61.01 39.91 50.51 84 1 18 1 3391 2.271 1.071 3.311 4 1 0.2 November 1 43.81 27.01 35.41 67 1 1 I 651 1.681 0.651 2.641 4 1 3.4 December 1 28.31 12.11 20.21 56 1 -21 1 51 1.211 0.631 1.731 3 1 9.7
----- I-I--I- I I-I- -------------
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Yearly : .- I .... I- I -- ------------
--- - I-- . . - I -... -I----iI Average I 56.31 35.91 46.11 --- I --- I --- I --- I I --- I ..
--- I ..
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Extreme I l011 -391 --- I 98 I -31 1 - ---. 1--- I ---... I I ---- I -- I-I-- I --- II- - - --- I.--- I------------- Total I --- I --- I --- I --- I --- I 4764132.01126.89136.671 56 I 36.5
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*A growing degree day is a unit of heat available for plant growth.
It can be calculated by adding the maximum and minumum daily temperatures, dividing the sum by 2, and subtracting the temperature below which growth is minimal for the principal crops in the area (Threshold : 40.0 deg. F) FROST FREE DAYS (FROST) [TOCI The FROST table provides information on the average date of the last temperature below 24, 28, and 32 degrees Fahrenheitin the spring, and the averagedate of the first temperaturebelow 24, 28, and 32 degrees Fahrenheitin the fall, at probabilitiesof 10, 20, and 50%. FROST Station : DECORAH, 192110 Start yr. - 1971 End yr. - 2000 Requested years of data: 30 Available years of data: 30 Spring: Missing data years 24 deg = 0, 28 deg = 0, 32 deg 0 Years with no occurrence 24 deg = 0, 28 deg = 0, 32 deg 0 Data years used 24 deg = 30, 28 deg = 30, 32 deg 30 Fall: Missing data years 24 deg = 1, 28 deg = 1, 32 deg 1 Years with no occurrence 24 deg = 0, 28 deg = 0, 32 deg 0 Data years used 24 deg = 29, 28 deg = 29, 32 deg 29 Temperature
-------------------------------------------I-----------------------------------------
---
Probability 24F or lower I 28F or lower I 32F or lower
----
- - ------
--- - ---
- - -- - - - - - - - - - - - - - - -- - -- - - -- -I - - - - - - -
Last freezing temperature in spring: 1 year in 10 later than-- April 2 22 Ma*/ 9 May 22 2 year in 10 later than-- April 17 Ma3/ 3 May 16 5 year in 10 later than-- April 8 April 23 May 5 First freezing temperature in fall: 1 yr in 10 earlier than-- October 8 ISeptember 26 ISeptember 23 2 yr in 10 earlier than-- October 13 October 1 ISeptember 26 5 yr in 10 earlier than-- October 23 1 October 12 October 4 GROWING SEASON (GROWTH) [TOCI The GROWTH table gives average length of growing season using three index temperatures (32, 28, and 24 degrees Fahrenheit) at 10, 20, 50, 80, and 90%1 probabilities. GROWTH Station : DECORAH, 192110 Start yr. - 1971 End yr. - 2000 Requested years of data: 30 Available years of data: 30' Missing data years 24 deg = 1, 28 deg = 1, 32 deg = 1 Years with no occurrence 24 deg = 0, 28 deg = 0, 32 deg 0 Data years used 24 deg = 29, 28 deg = 29, 32 deg 29
.1 Daily Minimum Temperature i-------------------- ----------------------
---------------------------------------------
Probability # days > 24F I # days > 28F # days > 32F 9 years in 10 177 1 148 131 8 years in 10 184 I 156 I 138 5 years in 10 197 170 151 2 years in 10 210 185 163 1 year in 10 217 193 1 170
------- I-------------I--------------
7 ofll 8/17/2008 10:14 AM
uranu '.,nmate i-enter - i-itmate i'roaucts - Lienera... 1~-,iNtunt-wlam nttp:i/www.wcc.nrcs.usaa.gowciffnate/toguiae.ntmiggrowth u//wwcnrssagolnatfguedmlroh WETLANDS DETERMINATION (WETS) fTOC The WETS table gives a month by month summary and probability analysis of temperature and precipitation. The table also provides average length of growing season using three index temperatures (32, 28, and 24 degrees Fahrenheit) at 50 and 70W probabilities. WETS Station : DECORAH, 192110 Start yr. - 1971 End yr. - 2000 Temperature: 30 years used out of 30 requested in this analysis Precipitation: 30 years used out of 30 requested in this analysis Temperature I Precipitation
--------- I------------------
i I I 13 yrs in 101 [II will have I
.. I---------I I---------- I Month I avg avg I avg I avg I less[ morel Idailyldailyl I I than[ thani max mrin I I (in.) I (in.) I (in.) I January 1 23.71 5.31 14.51 0.741 0.371 0.961 February 1 29.61 10.71 20.11 0.821 0.441 1.071 March 1 42.01 23.61 32.81 1.891 1.281 2.421 April 1 58.21 36.31 47.21 3.421 2.361 4.451 May 1 70.81 47.71 59.21 3.821 2.961 4.961 June I 79.71 56.71 68.2t 4.201 2.801 5.461 July 1 83.71 61.41 72.61 3.991 2.751 5.191 August 1 81.51 59.01 70.31 4.031 2.551 5.231 September 1 72.71 50.71 61.71 3.931 2.071 5.11; October 1 61.01 39.91 50.51 2.271 1.371 2.951 November 1 43.81 27.01 35.41 1.681 0.891 2.181 December 1 28.31 12.11 20.21 1.211 0.781 1.571
- -- - I--- . .i I Yearly : I I- I- .- .- I-Average 1 56.31 35.91 46.1; --- I --- I ---
..... II -
---- I I- ..- I Extreme 1 101i -391 --- I --- I --- I --- I I -----I - I ----. I Total I --- I --- I --- 132.01128.58141.55 I -----I I-
.-.-- -I-I-GROWING SEASON DATES WETS Station : DECORAH, 192110 Start yr. - 1971 End yr. - 2000 Requested years of data: 30 Available years of data: 30 Missing data years 24 deg = 1, 28 deg = 1, 32 deg = 1 Years with no occurrence 24 deg = 0, 28 deg = 0, 32 deg = 0 Data years used 24 deg = 29, 28 deg = 29, 32 deg = 29 Temperature
-------------- --------------------------------------------
Probability 24F I 28F I 32F I-------------I-------------- S.------------- Growing Season Length Beginning and Ending Dates 5 years in 10 -- 189 days I 161 days 1 143 days 4/15 to 10/21 4/31 to 10/ 9 5/13 to 10/ 2 7 years in 10 -- 197 days 1 170 days I 151 days 4/ 9 to 10/23 4/24 to 10/12 5/ 6 to 10/ 4 7 Climatic Data and ConservationPractices[TOC7 The following table provides recommendations on the most appropriateclimatic data to use in analysis of the practice for applicationon a particularfield. Values refer to the average or normal values for a particular element and time intervalbut may refer to a special type of analysis for that time interval ie. probability. The Practice Names are linked to the appropriatestandardwhich can be retrieved in pdf U format by selecting 8 oflIl 8/17/2008 10:14 AM
4m1ndt1~lh w atur anu -- iunate t-enter - tnm~ate rrociucts - ijenera... tittp://www.wcc.nrcs.usda.gov/climate/foguide.html#growth tp/Jwwcnrsudgo/laefguehtlrwh the practice name. Elements Conservation Practice Practice # Appied Prec tern- evan wind 560 Access Road 575 Animal Trails and Walkways 310 Bedding M M 314 Brush Management M 322 Channel Vegetation M M 324 Chiseling & Subsoiling 326 Clearing & Snagging M 397 Commercial Fishponds M M 317 Composting Facility M M M 327 Conservation Cover M M 328 Conservation Crop Rotation M M R 332 Contour Buffer Strips M M 330 Contour Farming 331 Contour Orchard and Other Fruit Area M M 335 Controlled Drainage M 340 Cover & Green Manure Crop 342 Critical Area Planting M M M 589A Cross Wind Ridges M R 589B Cross Wind Stripcroppinq M R 589C Cross Wind Trap Strips M R 348 Dam, Diversion M 402 Dam, Floodwater Retarding M 349 Dam, Multiple Purpose M 356 Dike Earthen M 362 Diversion M 382 Fence M 386 Field Border M M 393A Filter Strip M M 394 Firebreak M M 398 Fish Raceway or Tank M M M 395 Fish Stream Improvement M M M 399 Fishpond Management M M M 400 Floodwater Diversion M 404 Floodway M 511 Forage Harvest Management M M 655 Forest Harvest Trails & Landings M 490 Forest Site Preparation M M 666 Forest Stand Improvement M M 410 Grade Stabilization Structure M 412 Grassed Waterway M 548 Grazing Land Mechanical Treatment M M 561 Heavy Use Area Protection M M 422 Hedgerow Planting M M 422A Herbaceous Wind Barriers M M R 423 Hillside Ditch M 320 Irrigation Canal or Lateral M 388 Irrigation Field Ditch M 464 Irrigation Land Leveling M M 552B Irrigation Pit or Regulating Regulating Reservoir M Reservoir 552A Irrigation Pit or Regulating Irrigation Pit M M Reservoir 9ofll1 8/17/2008 10:14 AM
- '.~ iahna~ A AtflUtS.O - ~j~iit.t a... ILLLIJ://WWW.,W""Ut;b-UbUil'gUV/t;IL[llitLt;/L()gulue'nunifFgroWth 436 Irrigation Storage Reservoir F M 442 Irrigation System Sprinkler F F 447 Irrigation System Tallwater Recovery F 441 Irrigation System Trickle M M M 443 Irrigation System Surface & Subsurface F F F 430 Irrigation Water Conveyance Pipeline F M 428 Irrigation Water Conveyance Ditch and Canal Lining M M 449 Irrigation Water Management FD D D 460 Land Clearing M M 453 Land Reclamation Landslide Treatment F M M 456 Land Reclamation Highwall Treatment F M 451 Land Reclamation Fire Control F M M M 454 Land Reclamation Subsidence Treatment F M 455 Land Reclamation Toxic Discharge Control F M F M 544 Land Reconstruction Mine-Current F M 543 Land Reconstruction Mine-Abandoned F M 466 Land Smoothing M 468 Lined Waterway or Outlet M M 634 Manure Transfer M M M 457 Mine Shaft & Adit Closing M M 482 Mole Drain M 484 Mulching M M M 590 Nutrient Management M M M 500 Obstruction Removal M 582 Open Channel M M 512 Pasture & Hayland Planting F M M 595A Pest Management M 516 Pipeline M 378 Pond M M 521A Pond Sealing or Lining Flexible Membrane M M 521B Pond Sealing or Lining Soil Dispersant M M M 521C Pond Sealing or Lining Bentonite Sealant M M Cationic 521D Pond Sealing or Lining Emulsion-Waterborne M M M Sealant 521E Pond Sealing or Lining Asphalt-Sealed Fabric M M Liner 462 Precision Land Forming 338 Prescribed Burning M M F 528A Prescribed Grazing M 532 Pumped Well Drain 533 Pumping Plant for Water Control M 550 Range Planting M M 562 Recreation Area Improvement 566 Recreation Land Gradingq&
Shaping M M 568 Recreation Trail & Walkway 554 Regulating Water in Drainage Systems M 344 Residue Management Seasonal M M 329B Residue Management Mulch Till M M 329C Residue Management Ridge Till 329A Residue Managment No-till & Strip Till 391A Riparian Forest Buffer M 555 Rock Barrier 558 Roof Runoff Management M 557 Row Arrangement M 570 Runoff Management System M 350 Sediment Basin M 10 oflIt 8/17/2008 10:14 AM
-ý 11ULLUXIC91 TVaLUX aIIU %ýIHIMVýýUIILUI - %,IIMdECrruuucts - uenera... np;/ www.wI(c.nrcs.usua.gov/(Ilmuael~foguiue.numIlffgrowm
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571 Soil Salinity M M M Management-Nonirrigated 572 Spoil Spreading M M 574 Spring Development F M 584 Stream Channel Stabilization F M Streambank & Shoreline F M 580 Protection
'585 Stripcroppinq Contour M M M 586 Stripcroppinq Field M M 587 Structure for Water Control F M 606 Subsurface Drain H D 607 Surface Drainage Field Ditch F M 608 Surface Drainage Main or Lateral F 609 Surface Roughening F 600 Terrace F M 610 Toxic Salt Reduction F M M M 612 Tree/Shrub Establishment M M D F 6 60A Tree/Shrub Pruning M M 614 Trough or Tank M M 620 Underground Outlet H M 472 Use Exclusion M 630 Vertical Drain M 312 Waste Management System M M 313 Waste Storage Facility F F F 359 Waste Treatment Lagoon F M 633 Waste Utilization FD M M 636 Water Harvesting Catchment F M 641 Water Table Control F M 638 Water & Sediment Control F M M Basin 640 Waterspreading M M 642 Well M M 351 Well Decommissioning M 657 Wetland Development or F M M Restoration 645 Wildlife Upland Habitat M M Management 648 Wildlife Watering Facility F M 644 Wildlife Wetland Habitat M M Management 380 Windbreak/Shelterbelt F M M Establishment 650 Windbreak/Shelterbelt F M M Renovation I M=monthly, D=daily, H=hourly, 15=15 minute, F=frequency, R=roses prec = Precipitation,temp = Temperature Max & Min, evap = Evaportation, wind = Wind Movement This page last revised - November 18, 1998 Back to Top Site Map I Contact I Webmaster I N. i .. A I FirstGov 11 ofl11 8/17/2008 10:14 AM
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'Closest Station' Climate Data Retrieval The high density precipitation archive of volunteer precipitation data in Minnesota and/or the
'summary of the day' data set of the National Weather Service Cooperative program are searched for data which is closest to the target location. Values from the sites closest to your target along location information for each month of data are returned to you at the bottom of the page. Please be patient, it may take a minute to retrieve your data.
Obtaining Data for Legal Purposes Target location is Goodhue-Prairie island-Stroms 114N 15W S32 Lat: 44.63010 Lon: 92.64683
..set location. I__ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
[] retrieve only this station: 216822 RED WING DAM 3 years: F2008 [ toF2008!L, number of missing days allowed per month: F3 retrieve data from the following data sources: [ Precipitation from High Density Network [ Precipitation from National Weather Service [] Temperature from National Weather Service [I Snow from National Weather Service
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,return1toretrieval selection ]
State Climatology Office - MnDNR - Waters, 1996-2002 You can send e-mail to the State Climatology Office. I oflI 8/17/2008 10:46 AM
'Closest Station' Climate Data Retrieval The data matching your request is at the bottom of this page or should appear there within one minute.
Target location is Lat: 44.63010 Lon: 92.64683 El retrieve only this station: 1216822 RED WING DAM 3 years: 1-936 U to F2008 number of missing days allowed per month: ;3 retrieve data from the following data sources: [] Precipitation from High Density Network [] Precipitation from National Weather Service [I Temperature from National Weather Service [] Snow from National Weather Service get monithly 6getdaily l needed pre,temp,snow: 0 3 114 Target: lat 44.63010 Ion 92.64683 mon year cc tttN rrW ss nnnn ooooooog0* pre aaaaaa--Tm mzTmn aaa.-- sno SnD dis Jan 1936 216817 .8r219249 17.5 -3.6 216817 7.7 9.5 7 tffi. Feb 1936 216817 2.62 219249 13.9 -11.6 216817 27.9 27.6 7 mi. Mar 1936 216817 3.02 219249 41.3 22.0 216817 18.8 m 7 mi. Apr 1936 216817 .90 219249 52.7 30.1 216817 2.5 m 7 mi. May 1936 216817 3.39 219249 78.0 49.5 216817 0 m 7 mi. Jun 1936 216817 2.36 219249 80.5 52.7 m m 7 mi. Jul 1936 216817 .52219249 96.2 63.9 m m7mi. Aug 1936 216817 3.70 219249 90.4 61.1 m m7mi. Sep 1936 216817 2.52 219249 80.3 52.4 216817 0 m 7 mi. Oct 1936 216817 .89 219249 60.1 34.5 216817 0 m7 mi. Nov 1936 216817 .80 219249 41.8 22.0216817 1.2 m 7 mi. Dec 1936 216817 1.74 219249 33.7 12.9 216817 8.9 m 7 mi. Jan 1937 216822 1.56219249 19.5 -6.2216822 15.8 4.3 1 mi. Feb 1937 216822 .50 219249 25.6 3.2 216822 6.2 7.2 1 mi. Mar 1937 216822 1.46 219249 39.0 17.2 216822 14.5 3.0 1 mi. Apr 1937 216822 2.02 219249 55.9 35.5 216822 .9 .2 1 mi. May 1937 216822 3.94 219249 73.0 47.0 216822 0 m 1 mi. Jun 1937 216822 2.21 219249 79.6 53.6 m m 1 mi. Jul1937 216822 1.45 219249 91.1 60.0 m m I mi. Aug 1937 216822 2.75 219249 92.4 64.5 m m I mi. Sep 1937 216822 1.71 219249 79.5 49.7 216822 0 m 1 mi. Oct 1937 216822 1.89219249 59.5 35.8216822 0 0 1 mi. Nov 1937 216822 .19 217386 40.6 23.9216817 1.5 .71 mi. Dec 1937 216822 .48 212737 26.1 8.4 216822 7.5 2.5 1 mi. Jan 1938 216822 .36212737 21.5 5.7216822 9.9 4.11 mi. Feb 1938 216822 .77212737 30.3 13.7 216822 5.0 2.8 1 mi. Mar 1938 216822 1.62 212737 47.3 27.5 216822 3.2 .7 1 mi. Apr 1938 216822 3.68 212737 57.7 35.5 216822 0 m 1 mi. May 1938 216822 9.98 217386 65.7 48.3216822 0 m 1 mi. I off16 8/17/2008 10:54 AM
LIL1611 lP-INNIL stylsI *U uffVUTVal U/1/Z*[U I Utttp://CIIlmate.umn.eau/t-utracaus/racllus.asp Jun 1938 216822 6.04 219249 77.1 53.1 rn m I mi. Jul 1938 216822 4.49 219249 83.5 60.7 m m 1 mi. Aug 1938 216822 3.49219249 83.9 59.2 m m 1 mi. Sep 1938 216822 4.31 219249 74.3 49.1 216822 0 m 1 mi. Oct 1938 216822 1.26 219249 66.6 40.8 216822 0 m i mi. Nov 1938 216822 1.98 219249 41.2 23.1 216822 1.0 m 1 mi. Dec 1938 216822 .59 219249 28.4 12.9 216822 15.9 m 1 mi. Jan 1939 216822 1.13219249 294, 12.8 216822 8.7 4.7 1 mi. Feb 1939 216822 .76 219249 24.8 -1.2 216822 19.0 9.5 1 mi. Mar 1939 216822 .43 219249 40.2 18.6 216822 5.7 7.6 1 mi. Apr 1939 216817 2.05219249 54.5 30.5 216817 1.5 m 7 mi. May 1939 216822 2.45219249 77.5 47.5216822 0 mimi. Jun 1939 216822 3.08219249 79.9 55.7 m m I mi. Jul1939 216822 2.59219249 86.3 58.0 m m I mi. Aug 1939 216822 4.78219249 82.7 56.0 m m 1 mi. Sep 1939 216822 1.85 219249 78.6 50.3 216822 0 mimi. Oct 1939 216822 1.23219249 60.3 36.9216822 0 ' m I mi. Nov 1939 216822 .42 219249 49.9 21.1216822 0 m I mi. Dec 1939 216822 .69219249 37.8 16.0216822 1.0 m 1 mi. Jan 1940 216822 .28219249 14.8 -3.3216822 5.2 3.0 1 mi. Feb 1940 216822 .63219249 29.1 9.5216822 8.6 5.4 1 mi. Mar 1940 216822 1.62219249 32.0 15.2216822 31.0 11.2 1 mi. Apr 1940 216822 1.49219249 54.2 32.4216822 0 Mimi. May 1940 216822 1.34 217386 66.6 40.9216822 0 mimi. Jun 1940 216822 11.44219249 78.8 54.5 m m I mi. Jul 1940 216822 3.76 219249 85.5 59.7 m m 1 mi. Aug 1940 216822.6.21 219249 77.5 57.6 m m 1 mi. Sep 1940 216822 .25 219249 76.4 49.4 216817 0 m 1 mi. Oct 1940 216822 2.36219249 64.9 39.2216817 .5 m I mi. Nov 1940 216822 3.13 219249 36.9 21.6 216822 13.0 m 1 mi. Dec 1940 216822 1.08 219249 29.8 13.7216822 19.1 8.3 1 mi. Jan 1941 216822 1.29219249 26.2 9.4216822 4.9 4.81 mi. Feb 1941 216822 .64 219249 26.1 4.8 216822 7.8 7.6 1 mi. Mar1941 216822 1.18219249 36.7 18.1 216822 11.8 8.91 mi. Apr 1941 216822 2.09219249 63.8 40.0216822 0 01mi. May.1941 216822 2.60219249 75.2 49.8216817 0 Mimi. Jun 1941 216822 3.24 219249 78.1 56.9 mr m I mi. Jul 1941 216822 1.42 219249 84.1 59.5 m m 1 mi. Aug 1941 216822 1.44 219249 84.4 57.2 m m 1 mi. Sep 1941 216822 3.57219249 75.4 51.8216817 0 m I mi. Oct 1941 216822 4.11 219249 61.0 39.3216817 0 m I mi. Nov 1941 216822 1.63219249 46.2 27.4216822 0 mimi. Dec 1941 216822 .82 219249 35.2 18.1 216822 11.8 m 1 mi. Jan 1942 216822 .19 219249 28.5 9.8 216822 3.5 m 1 mi. Feb 1942 216822 .32219249 26.8 10.9 216822 6.4 1.5 1 mi. Mar1942 216822 3.11 219249 43.5 26.8216817 3.5 m 1 mi. Apr 1942 216822 3.24 219249 65.1 38.1 216817 0 m mii. May 1942 216822 7.52 219249 66.2 43.7 216817 0 m i mi. Jun 1942 216822 6.99219249 76.8 55.2 m m I mi. Jul 1942 216822 3.51 219249 81.0 57.4 m m 1 mi. Aug 1942 216822 2.29219249 80.6 58.6 m m 1 mi. Sep 1942 216822 10.16 219249 67.5 46.5 216817 0 m 1 mi. Oct 1942 216822 1.75 219249 60.8 34.8 216822 0 m i mi. Nov 1942 216822 .44 219249 43.6 22.7216822 5.0 m 1 mi. Dec 1942 216822 1.94219249 22.8 5.4216817 14.0 7.0 1 mi. Jan 1943 216822 1.39 219249 18.0 -2.9 216822 23.8 22.0 1 mi. Feb 1943 216822 .42 219249 29.6 4.5 216822 6.4 16.9 1 mi. Mar 1943 216822 1.34 219249 35.0 13.9 216822 8.2 m 1 mi. Apr 1943 216822 .91 219249 62.0 30.6 216822 0 m I mi. May 1943 216822 3.10 219249 69.7 42.9 216822 0 m i mi. 2 of 16 8/17/2008 10:54 AM
LtttII.J.**OLJ ~r.IUx allu ¥flcyl V/ I /It V ntup;/Iutl~lruLe'UIImxUWr-ILJr-dUIUS/rduius-asp Jun 1943 216822 5.24219249 79.4 58.6 m m 1 mi. Jul 1943 216822 6.24219249 83.3 60.0 m m 1 mi. Aug 1943 216822 3.81 219249 81.1 58.8 m m 1 mi. Sep 1943 216822 2.85 219249 67.9 44.7 216817 0 m I mi. Oct 1943 216822 .86219249 59.5 33.4 216817 0 m 1 mi. Nov 1943 216822 1.48 219249 35.7 20.4 216822 8.0 m 1 mi. Dec 1943 216822 0219249 32.7 12.8 216822 0 m 1 mi. Jan 1944 216822 .56 219249 36.2 14.9216822 2.0 m 1 mi. Feb 1944 216822 .97 219249 31.3 9.7 216822 5.1 m I mi. Mar 1944 216822 1.27 219249 33.3 18.2 216822 14.9 m 1 mi. Apr 1944 216822 1.96219249 50.9 30.3 216822 m m 1 mi. May 1944 216822 4.92 219249 71.5 50.6 216822 .8 m 1 mi. Jun 1944 216822 4.73 219249 80.2 58.1 m m 1 mi. Jul 1944 216822 2.78219249 80.3 55.7 m m 1 mi. Aug 1944 216822 2.52 219249 81.4 58.1 m m 1 mi. Sep 1944 216822 1.69219249 71.4 49.1216822 0 m 1 mi. Oct 1944 216822 .68 219249 62.9 36.2 216817 0 m 1 mi. Nov 1944 216822 1.06 219249 44.0 31.7 216822 2.0 m 1 mi. Dec 1944 216822 .38219249 26.4 9.5 216822 3.7 .3 1 mi. Jan 1945 216822 .79 219249 21.4 .7 216822 12.4 5.8 1 mi. Feb 1945 216822 1.92219249 28.2 5.9216822 19.0 12,8 1 mi. Mar 1945 216822 2.92219249 50.7 24.9 216822 4.5 m 1 mi. Apr 1945 216822 3.65219249 53.9 33.7 216822 12.0 m I mi. May 1945 216822 3.58 219249 63.4 38.8 216822 0 m 1 mi. Jun 1945 216822 4.38219249 71.6 48.6 m m I mi. Jul 1945 216822 9.05 219249 80.0 55.6 m m 1 mi. Aug 1945 216822 9.42 219249 80.7 56.0 m m 1 mi. Sep 1945 216822 3.14 219249 69.7 46.8 216822 0 m 1 mi. Oct 1945 216822 .46 219249 60.4 33.7 216822 0 m 1 mi. Nov 1945 216822 1.31 219249 40.9 23.0 216822 7.0 m I mi. Dec 1945 216822 1.67 219249 21.6 4.7 216822 19.8 4.1 1 mi. Jan1946 216822 1.28219249 26.3 6.0216822 5&0 6.41 mi. Feb 1946 216822 .81 219249 29.0 8.3 216822 6.9 5.6 1 mi. Mar 1946 216822 1.38 219249 52.0 32.3 216822 1.2 m 1 mi. Apr 1946 216822 .69 219249 62.7 35.7 216822 0 m 1 mi. May 1946 216822 3.14 219249 67.5 40.7 216822 0 m 1 mi. Jun 1946 216822 7.70 219249 78.7 54.1 m m I mi. Jul 1946 216822 2.40 219249 84.5 58.3 m m 1 mi. Aug 1946 216822 .66219249 80.4 51.5. m m 1 mi. Sep 1946 216822 6.61 219249 70.9 46.5 216817 0 m 1 mi. Oct 1946 216822 4.82219249 62.9 39.8216817 0 m I mi. Nov 1946 216822 1.31 219249 40.3 23.2216822 1.5 m I mi. Dec 1946 216822 .85 219249 31.0 11.7216822 6.0 .8 1 mi. Jan 1947 216822 .55 219249 29.5 11.2216822 7.2 2.3 1 mi. Feb 1947 216822 .14219249 20.5 4.9 216822 1.2 2.6 1 mi. Mar 1947 216822 .92 219249 35.9 19.9 216822 2.5 m 1 ml. Apr1947 216822 3.06219249 51.5 31.5 216822 3.0 m 1 mi. May 1947 216822 2.42 219249 64.9 40.3 216817 0 m 1 mi. Jun 1947 216822 5.46 219249 73.8 52.4 m m 1 mi. Jul 1947 216822 1.33 219249 83.7 56.0 m m I mi. Aug 1947 216822 3.46 219249 89.5 63.9 m m 1 mi. Sep 1947 216822 5.30 219249 73.9 50.7216822 0 m1mi. Oct 1947 216822 1.25219249 69.2 46.1216817 0 m1mi. Nov 1947 216822 1.89219249 34.4 18.4 216817 10.9 m I mi. Dec 1947 216822 .77 219249 26.5 5.8 216822 9.9 8.4 1 mi. Jan 1948 216822 .09 219249 20.4 -4.0 216822 2.0 8.1 1 mi. Feb 1948 216822 1.97 219249 25.5 4.3 216822 14.9 7.7 1 mi. Mar 1948 216822 .97219249 38.6 14.2 216822 4.5 m 1 mi. Apr 1948 216822 2.06219249 63.9 36.7 216822 .8 0 1 mi. May 1948 216822 1.26219249 68.9 42.8 216822 0 01 mi. 3 of 16 8/17/2008 10:54 AM
rugn uini~sity raulus remaevai w 2Izt lettp://cIlnate.umn.elwu IacrUs/radlus.asp Jun 1948 216822 2.18 219249 77.2 52.5 219249 0 0 1 mi. Jul 1948 216822 1.51 219249,87.5 59.4 216822 0 0 1 mi. Aug 1948 216822 3.62 219249 84.1 57.5 216822 0 0 1 mi. Sep 1948 216822 .51219249 80.1 50.0 216822 0 0 1 mi. Oct 1948 216822 .77 219249 62.2 34.5 216817 0 0 1 mi. Nov 1948 216822 2.11 219249 42.3 29.2 216817 1.0 0 1 mi. Dec 1948 216822 .90 219249 28.9 9.9 216822 2.0 1.9 1 mi. Jan 1949 216822 1.36 219249 24.1 5.8 216822 8.5 2.4 1 mi. Feb 1949 216822 .21 219249 25.5 4.6 216822 4.6 5.2 1 mi. Mar 1949 216822 3.61 219249 38.7 22.0 216822 5.0 .2 1 mi. Apr 1949 216822 1.25 219249 58.5 32.4 216822 2.0 .1 1 mi. May 1949 216822 1.07 219249 74.5 47.5 216822 0 0 1 mi. Jun 1949 216822 4.28 219249 83.6 58.7 216822 0 0 1 mi. Jul 1949 216822 7.06 216822 86.4 66.3 216822 0 0 1 mi. Aug 1949 216822 1.83 219249 86.1 58.9 216822 0 0 1 mi. Sep 1949 216822 1.15 219249 71.0 44.7 216822 0 0 1 mi. Oct 1949 216822 2.53 216822 64.7 43.9 216817 0 0 1 mi. Nov 1949 216822 .64216822 46.4 29.9216822 3.3 .2 1 mi. Dec 1949 216822 1.39 216822 31.3 12.8 216822 8.1 .4 1 mi. Jan 1950 216822 1.44216822 20.5 -3.7 216822 22.3 6.9 1 mi. Feb 1950 216822 .90216822 26.5 .3 216822 10.6 11.4 1 mi. Mar 1950 216822 2.12 219249 32.5 15.6 216822 6.1 5.3 1 mi. Apr 1950 216822 2.68 219249 47.6 29.0 216822 2.1 0 1 mi. May 1950 216822 2.09 219249 67.2 44.6 216822 0 0 1 mi. Jun 1950 216822 7.57 219249 80.2 54.0 216822 0 0 1 mi. Jul 1950 216822 3.44 219249 81.7 55.6 216822 0 0o1 mi. Aug 1950 216822 2.94 219249 78.2 53.4216822 0 0lmi. Sep 1950 216822 1.93 219249 73.1 47.9 216822 0 0l mi. Oct 1950 216822 1.21 219249 67.2 40.6 216822 0 0 1 mi. Nov 1950 216822 1.01 219249 39.3 18.3 216822 6.5 .61 mi. Dec 1950 216822 1.72219249 22.5 1.1 216822 21.5 13.7 l mi. Jan 1951 216822 .52219249 20.1 -3.8 216822 8.9 16.1.1 ml. Feb 1951 216822 1.45 219249 27.7 6.3 216822 4.5 17.1 1 mi. Mar 1951 216822 3.36 219249 30.8 10.8 216822 44.6 20.0 1 mi. Apr 1951 216822 2.75219249 50.0 31.8216822 2.9 2.0 l mi. May 1951 216822 2.11 219249 73.8 47.8 216822 0 0l mi. Jun 1951 216822 6.60219249 75.6 51.7 216822 0 0 1 mi. Jul 1951 216822 4.08 219249 83.4 58.5 216822 0 0 1 mi. Aug 1951 216822 3.31 219249 78.5 56.5 216822 0, 0 1 mi. Sep 1951 216822 5.18 219249 69.3 45.6 216822 0 0 1 mi. Oct 1951 216822 1.35 219249 60.0 39.1 216822 0 0 1 mi. Nov 1951 216822 1.90 219249 35.9 14.8 216822 10.E 1.4 1 mi. Dec 1951 216822 1.10 219249 24.9 8.3 216822 12.5 2.9 1 mi. Jan 1952 216822 1.22 219249 26.6 2.4 216822 I 1.6 7.2 1 mi. Feb 1952 216822 .65 219249 33.2 15.2 216822 14.2 10.3 1 mi. Mar 1952 216822 1.71 219249 34.6 16.5 216822 22.1 11.5 1 mi. Apr 1952 216822 1.52 219249 60.5 34.1 216822 2.0 .6 1 mi. May 1952 216822 3.71 219249 69.8 44.5 216822 0 0 1 mi. Jun 1952 216822 6.32 219249 81.6 57.4 216822 0 0 1 mi. Jul 1952 216822 3.75 219249 86.3 59.2 216822 0 0 1 mi. Aug 1952 216822 5.55 219249 81.1 56.1 216822 0 0 1 mi. Sep 1952 216822 .38219249 76.3 47.2216822 0 0 1 mi. Oct 1952 216822 .03 219249 59.7 27.0 216822 0 0 1 mi. Nov 1952 216822 1.20 219249 47.9 23.0216822 12.: 3 .9 1 mi. Dec 1952 216822 .39219249 30.3 13.0216822 7.5 4.6 1 mi. Jan 1953 216822 .81219249 27.4 7.6216822 3.4 5.8 1 mi. Feb 1953 216822 1.47 219249 30.4 8.4 216822 21.4 9.1 1 mi. Mar 1953 216822 1.12 219249 41.0 21.0 216822 4.3 5.9 1 mi. Apr 1953 216822 3.34219249 50.7 30.6216822 0 0 1 mi. May 1953 216822 2.34219249 70.6 47.1 216822 0 0 1 mi. 4 of 16 8/17/2008 10:54 AM
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]te'ltl U I I/-, IV u Inttp://cdflmate.umn.eou/HliLi-alUis/ral-ius.asp Jun 1953 216822 5.29 219249 81.6 59.3 216822 0 0 1 mi.
Jul 1953 216822 5.95.219249 82.8 59.1216822 0 0 1 mi. Aug 1953 216822 3.95 219249 84.0 59.3 216822 0 0 1 mi. Sep 1953 216822 .58219249 76.7 46.5216822 0 0 1 mi. Oct 1953 216822 .05 217107 70.3 41.1 216822 0 0 1 mi. Nov 1953 216822 1.58 219249 51.6 25.9 216822 .2 0 1 mi. Dec 1953 216822 1.40 219249 33.1 12.7 216822 9.1 2.8 1 mi. Jan 1954 216822 .24 219249 24.4 1.6 216822 5.2 4.5 1 mi. Feb 1954 216822 .42219249 43.5 23.6216822 0 .6 1 mi. Mar 1954 216822 1.95 219249 40.0 18.2 216822 9.6 1.0 1 mi. Apr 1954 216822 5.34219249 62.0 35.8 216822 0 0 i mi. May 1954 216822 4.14 219249 64.9 42.1 216822 2.2 0 1 mi. Jun 1954 216822 7.71219249 81.1 57.7216822 0 0 1 mi. Jul 1954 216822 4.96 219249 85.7 61.6216822 0 0 1 mi. Aug 1954 216822 2.94 219249 81.7 56.6 216822 0 0 1 mi. Sep 1954 216822 4.66 219249 73.7 51.0216822 0 0 1 mi. Oct 1954 216822 3.77 219249 58.0 38.3 216822 0 0 1 mi. Nov 1954 216822 .66 219249 47.3 28.9'216822 4.0 .3 1 mi. Dec 1954 216822 .85 219249 30.3 15.0 216822 14.8 6.2 1 mi. Jan 1955 216822 .55 219249 24.5 4.4 216822 10.1 9.0 1 mi. Feb 1955 216822 1.10 219249 25.9 4.0 216822 9.0 12.7 1 mi. Mar 1955 216822 1.07 219249 38.7 15.0 216822 8.6 4.2 1 mi. Apr 1955 216822 2.59 219249 66.7 39.5 216822 0 0 1 mi. May 1955 216822 1.59 219249 76.2 48.3 216822 0 01 mi. Jun 1955 216822 3.17 219249 78.4 54.4 216822 0 01mi. Jul 1955 216822 7.59 219249 89.1 66.5 216822 0 01mi. Aug 1955 216822 3.37 219249 87.3 62.1 216822 0 01mi. Sep 1955 216822 1.15 219249 76.8 49.4 216822 0 01mi. Oct 1955 216822 1.91 219249 64.3 38.7216822 0 01mi. Nov 1955 216822 1.24219249 35.9 19.5 216822 6.4 1.3 1 mi. Dec 1955 216822 1.22219249 23.8 3.6 216822 15.0 5.4 1 mi. Jan 1956 216822 .39 219249 22.8 1.9 216822 15.0 7.6 1 mi. Feb 1956 216822 .25219249 27.7 1.6216822 3.8 7.9 1 mi. Mar 1956 216822 2.81 219249 36.7 14.8216822 22.3 8.3 1 mi. Apr 1956 216822 1.35219249 56.4 29.2216822 7.7 .5 1 mi. May 1956 216822 3.08 219249 70.4 45.4 216822 0 01 mi. Jun 1956 216822 7.02 219249 84.6 58.7 216822 0 01mi. Jul 1956 216822 3.97 219249 80.8 57.1 216822 0 01mi. Aug 1956 216822 6.84 219249 82.8 57.7 216822 0 01mi. Sep 1956 216822 .83 219249 73.3 44.7 216822 0 01mi. Oct 1956 216822 1.41 219249 69.9 42.7 216822 0 01mi. Nov 1956 216822 1.23 219249 43.6 22.5 216822 8.2 1.91 mi. Dec 1956 216822 .25 219249 34.7 15.2216822 3.9 .8 1 mi. Jan 1957 216822 .24 219249 22.8 1.5 216822 t.1 .9 1 mi. Feb 1957 216822 .69 219249 34.0 10.4 216822 8.4 2.9 1 mi. Mar 1957 216822 1.12 219249 41.2 20.9216822 7.2- .5 1 mi. Apr 1957 216822 1.01 219249 59.2 34.6216822 6.9 .3 1 mi. May 1957 216822 4.76 219249 69.9 43.4 216822 0 01mi. Jun 1957 216822 5.15219249 79.5 54.7216822 0 01mi. Jul 1957 216822 8.47 219249 86.6 63.4 216822 0 01mi. Aug 1957 216822 5.21219249 80.0 57.7 216822 0 01 mi. Sep 1957 216822 1.48 219249 72.0 46.3 216822 0 01mi. Oct 1957 216822 1.99 217107 57.2 36.1 216822 0 01mi. Nov 1957 216822 2.47 219249 42.2 26.2 216822 13.5 2.7 1 mi. Dec 1957 216822 .64 219249 34.1 15.5 216822 3.8 1.5 1 mi. Jan 1958 216822 .21 219249 29.9 13.8 216822 3.4 1.0 1 mi. Feb 1958 216822 .09 219249 25.8 4.0 216822 .8 2.4 1 mi. Mar 1958 216822 .36 217107 40.4 21.5 216822 4.3 .5 1 mi. Apr 1958 216822 2.27 219249 59.3 33.2 216822 0 01 mi. May 1958 216822 1.13219249 74.8 45.0 216822 0 01 mi. 5 of 16 8/17/2008 10:54 AM
nugn tvtit' say rautus reurneval u / 1/-t lsttp://climate.umn.edu/HIL)radlius/radIus.asp Jun 1958 216822 4.67 219249 75.4 49.9 216822 0 0 1 mi. Jul 1958 216822 3.95 219249 80.1 55.8 216822 0 0 1 mi. Aug 1958 216822 2.04219249 83.7 56.8 216822 0 0 1 mi. Sep 1958 216822 2.65 219249 74.4 50.1 216822 0 0 1 mi. Oct 1958 216822 1.87 219249 66.4 40.2 216822 0 0 1 mi. Nov 1958 216822 .74 217107 45.3 23.2 216822 1.5 0 1 mi. Dec 1958 216822 .19 219249 25.3 3.1 216822 3.1 1.1 1 mi. Jan 1959 216822 .22 219249 21.1 -1.2 216822 t.3 1.9 1 mi. I1 Feb 1959 216822 .57 219249 26.6 2.3 216822 1.7 3.9 1 mi. Mar 1959 216822 1.07 219249 42.6 20.8 216822 8.3 1.4 1 mi. Apr 1959 216822 1.44219249 60.2 34.1 216822 0 0 1 mi. May 1959 216822 5.89 219249 72.8 48.8 216822 0 0 1 mi. Jun 1959 216822 2.83 219249 81.3 56.2 216822 0 0 1 mi. Jul 1959 216822 2.57 219249 84.5 59.5 216822 0 0 1 mi. Aug 1959 216822 7.01 219249 85.7 63.8 216822 0 0 1 mi. Sep 1959 216822 4.70 219249 74.2 50.4 216822 0 0 1 mi. Oct 1959 216822 2.87 219249 54.9 35.4 216822 2.1 01 mi. Nov.1959 216822 .72 219249 33.9 16.1 216822 6.1 .6 1 mi. Dec 1959 216822 1.90 219249 38.4 21.6 216822 5.1 .5 1 mi. Jan 1960 216822 .44 219249 27.2 9.9 216822 5.3 1.2 1 mi. Feb 1960 216822 .47 219249 29.3 9.5 216822 6.1 1.31 mi. Mar 1960 *216822 .67219249 32.6 8.2 216822 6.1 2.0 1 mi. Apr 1960 216822 3.11 219249 59.0 34.8 216822 0 01 mi. May 1960 216822 4.93 219249 69.8 46.2 216822 0 0 1 mi. Jun 1960 216822 4.93 219249 76.5 53.5 216822 0 0 1 mi. Jul 1960 216822 1.33 219249 84.3 58.5 216822 0 0 1 mi. Aug 1960 216822 3.75 219249 84.6 59.8 216822 0 0 1 mi. Sep 1960 216822 4.29 219249 74.6 53.1 216822 0 0 1 mi. Oct 1960 216822 .95 219249 63.4 35.9 216822 0 0 1 mi. Nov 1960 216822 1.47 219249 47.4 26.1 216822 .3 0 1 mi. Dec 1960 216822 .72 219249 29.2 9.1 216822 .7 0 1 mi. Jan 1961 216822 .16 219249 26.8 5.9216822 5.5 .6 1 mi. Feb 1961 216822 1.61 219249 37.4 15.0216822 13.15 3.0 1 mi. Mar 1961 216822 2.07 219249 43.4 23.7216822 13.10 2.6 1 mi. Apr 1961 216822 1.61 219249 51.5 29.6216822 3.6 .1 1 mi. May 1961 216822 4.24 219249 69.8 41.8 216822 0 0 1 mi. Jun 1961 216822 2.01 219249 81.9 55.1 216822 0 0 1 mi. Jul 1961 216822 3.95 219249 83.2 58.1 216822 0 0 1 mi. Aug 1961 216822 2.60 219249 83.7 58.6 216822 0 0 1 mi. Sep 1961 216822-3.13 219249 72.8 49.7 216822 0 0 1 mi. Oct 1961 216822 2.90 219249 65.5 37.6 216822 0 0 1 mi. Nov 1961 216822 1.31 219249 42.8 25.4 216822 1.5 01mi. Dec 1961 216822 1.30 219249 26.1 8.7 216822 24.0 8.7 1 mi. Jan 1962 216822 .52 219249 20.8 .3 216822 8.0 7.9 1 mi. Feb 1962- 216822 1.14 219249 23.4 5.7 216822 27.9 12.5 1 mi. Mar 1962 216822 1.25 219249 36.3 14.9 216822 20. 6 17.2 1 mi. Apr 1962 216822 2.08 219249 56.5 30.3 216822 7.0 .4 1 mi. May 1962 216822 4.97 219249 73.7 50.9 216822 0 0 1 mi. Jun 1962 216822 2.42 219249 78.0 54.2 216822 0 0 1 mi. Jul 1962 216822 4.16 219249 80.0 57.7 216822 0 0 1 mi. Aug 1962 216822 4.65 219249 83.4 56.1 216822 0 0 1 mi. Sep 1962 216822 3.00 219249 70.3 44.5216822 0 0 1 mi.
.
Oct 1962 216822 2.24 219249 64.7 40.1 216822 0 0 1 mi. Nov 1962 216822 .46 219249 47.1 27.7 216822 3.8 .3 1 mi. Dec 1962 216822 .28 219249 32.1 11.6216822 2.3 .51 mi. Jan 1963 216822 .78 219249 15.2 -3.2 216822 8.7 4.8 1 mi. Feb 1963 216822 .44 219249 27.1 5.1 216822 5.4 4.21 mi. Mar 1963 216822 1.37 219249 46.7 23.2 216822 10.6 2.7 l mi.
.Apr 1963 216822 1.69219249 63.3 35.1 216822 2.0 0 l mi.
May 1963 216822 1.87 219249 69.9 44.4 216822 0 01mi. 6 of 16 8/17/2008 10:54 AM
nign uniN slty raimIUS retrieval u i12z10 shttp://chllmate.umn.edu/HlDradius/radius.asp Jun 1963 216822 2.52 219249 84.0 56.1 216822 0 0 1 mi. Jul 1963 216822 1.90 219249 85.6 59.5 216822 0 0 1 mi. Aug 1963 216822 1.81 219249 83.1 55.7 216822, 0 0 1 mi. Sep 1963 216822 4.30 219249 76.9 50.2 216822 0 0 1 mi. Oct 1963 216822 .82 219249 73.5 46.2 216822 0 0 1 mi. Nov 1963 216822 .90 219249 49.9 29.1 216822 .5 0 1 mi. Dec 1963 216822 .50 219249 20.9 2.7 216822 8.0 2.1 1 mi. Jan 1964 216822 .39219249 33.5 13.0216822 7.3 2.9 1 mi. Feb 1964 216822 .03 219249 38.9 14.0 216822 0 .2 1 mi. Mar 1964 216822 1.59 219249 40.3 18.5 216822 11.2 1.1 1 mi. Apr 1964 216822 4.71 219249 60.0 35.1 216822 1.0 0 1 mi. May 1964 216822 4.35 219249 76.7 47.9 216822 0 0 1 mi. Jun 1964 216822 1.24 219249 82.9 54.0 216822 0 0 1 mi. Jul 1964 216822 4.80 219249 89.9 62.1 216822 0 0 1 mi. Aug 1964 216822 3.80 219249 82.8 53.4 216822 0 01mi. Sep 1964 216822 7.50 219249 72.4 47.1 216822 0 01 mi. Oct 1964 216822 1.24 219249 63.4 35.9 216822 0 01mi. Nov 1964 216822 1.07 219249 47.7 25.8 216822 2.0 .2 1 mi. Dec 1964 216822 1.46 219249 25.4 8.3 216822 10.0 2.5 1 mi. Jan 1965 216822 .45 219249 22.6 .1 216822 a.6 4.5 1 mi. Feb 1965 216822 1.41 219249 24.0 .3 216822 19.7 10.1 1 mi. Mar 1965 216822 2.89 219249 30.5 9.4 216822 27.6 9.8 1 mi. Apr 1965 216822 3.29 219249 52.9 33.6 216822 2.9 2.5 1 mi. May 1965 216822 5.72 219249 73.5 48.0 216822 0 0 1 mi. Jun 1965 216822 3.06 219249 79.4 54.1 216822 0 0 1 mi. Jul 1965 216822 6.48 219249 83.6 58.8 216822 0 0 1 mi. Aug 1965 216822 3.32 219249 81.6 56.3 216822 0 0 1 mi. Sep 1965 216822 4.94213567 62.2 48.8 216822 0 0 1 mi. Oct 1965 216822 1.28 219249 65.8 39.3 216822 0 01mi.: 0 1 mi. Nov 1965 216822 2.09 219249 44.5 24.5 216822 0 Dec 1965 216822 1.12 219249 36.6 22.7 216817 0 .2 1 mi. Jan 1966 216822 .90 219249 15.3 -5.7 216822 1 1.4 6.0 1 mi. Feb 1966 216822 1.08 219249 29.1 3.2 216822 7.0 :)3.4 1 mi. Mar 1966 216822 2.31 219249 48.5 25.5 216822 12.0 1.9 1 mi. Apr 1966 216822 1.84 219249 55.6 32.4 216822 0 0 1 mi. May 1966 216822 1.24 219249 69.8 39.5 216822 0 0 1 mi. Jun 1966 216822 3.44 219249 82.7 54.7 216822 0 0 1 mi. Jul 1966 216822 3.52 219249 88.9 61.3 216822 0 0 1 mi. Aug 1966 1216822 4.89 219249 80.5 54.0 216822 0 0 1 mi. Sep 1966 216822 2.28 219249 74.3 46.3 216822 0 0 1 mi. Oct 1966 216822 2.53 219249 60.8 34.5 216822 0 0 1 mi. Nov 1966 216822 .41 219249 40.3 22,3216822 2.3 .2 1 mi. Dec 1966 216822 1.00 219249 28.0 10.6 216822 9.8 1.0 1 mi. Jan 1967 216822 2.68213567 26.3 6.4 216822 26.0 11.1 1 mi. Feb 1967 216822 .70 213567 21.2 -. 8 216822 14.5 17.5 1 mi. Mar 1967 216822 1.09 219249 40.8 20.4 216822 5.0 11.2 1 mi. Apr 1967 216822 5.23 219249 55.9 35.6 216822 0 0 1 mi. May 1967 216822 1.77 219249 65.5 38.7 216822 0 0 1 mi. Jun 1967 216822 6.37 219249 79.2 55.1 216822 0 0 1 mi. Jul 1967 216822 2.36 216822 80.6 61.2 216822 0 0 1 mi. 0 1 mi. Aug 1967 216822 1,44219249 79.5 52.5 216822 0 Sep 1967 216822 .82 219249 73.8 45.8 216822 0 0 1 mi. Oct 1967 216822 2.15 219249 58.9 35.5 216822 0 0 1 mi. Nov 1967 216822 .12 213567 40.8 26.0 216822 0 0 1 mi. Dec 1967 216822 .13 219249 32.2 14.2 216822 0 0 1 mi. Jan 1968 216822 .45 219249 24.9 5.3216822 4.6 1.4 1 mi. Feb 1968 216822 .06 214438 11.8 5.3 216822 .7 .1 1 mi. Mar 1968 216822 .99 216822 52.4 28,2216822 0 0 1 mi. Apr 1968 216822 3.58 217107 62.3 36.7 216822 0 0 1 mi. May 1968 216822 5.80 216822 65.6 45.2 216822 0 01mi. 7 of 16 8/17/2008 10:54 AM
LILS" I-ALAINILY Idulub IUUIUVdI V/ IZIV nttp://citmate.umn.eauiwi rtaoiusiraius.asp Jun 1968 216822 5.66 216822 78.4 58.7 216822 0 0 1 mi. Jul 1968 216822 6.73 219249 83.2 57.8 216822 0 0 1 mi. Aug 1968 216822 1.41 219249 82.7 57.3 216822 0 0 1 mi. Sep 1968 216822 5.51 219249 71.8 49.2 216822 0 0 1 mi. Oct 1968 216822 4.14219249 62.5 40.4216822 0 0 1 mi. Nov 1968 216822 .68219249 41.8 26.3213567 0 0 1 mi. Dec 1968 216822 2.16 219249 27.2 9.7 216822 27.4 6.0 1 mi. Jan 1969 216822 2.30 219249 19.1 -. 1 216822 22.0 18.3 1 mi. Feb 1969 216822 .28 219249 28.4 9.2 216822 5.0 21.3 1 mi. Mar 1969 216822 2.28 213567 35.7 20.0 216817 6.5 15.6 1 mi. Apr 1969 216822 1.12216822 59.3 40.4216822 0 01 mi. May 1969 216822 2.00 216822 71.8 50.8 216822 0 0 1 mi. Jun 1969 216822 4.97 219249 72.6 48.4 216822 0 0 1 mi. Jul 1969 216822 5.36 219249 83.6 60.6 216822 0 0 1 mi. Aug 1969 216822 1.02 219249 86.2 58.1 216822 0 0 1 mi. Sep 1969 216822 .99 216822 74.7 51.2216822 0 0 1 mi. Oct 1969 216822 3.05216822 55.4 39.0 216822 0 0 1 mi. Nov 1969 216822 .75 219249 42.1 24.8 216817 2.5 .2 1 mi. Dec 1969 216822 1.76 216822 28.4 13.9 216817 131.4 4 9.0 1 mi. Jan 1970 216822 .65 216822 15.3 -3.4 216822 10.9 14.2 1 mi. Feb 1970 216822 .09213567 28.9 5.2 216822 1.1 12.2 1 mi. Mar 1970 216822 1.78 213567 36.5 19.8 216822 5.5 8.3 1 mi. Apr 1970 216822 2.36219249 57.1 33.2216822 0 .6 1 mi. May 1970 216822 6.39 213567 69.2 51.5 216822 0 0 1 mi. Jun 1970 216822 3.30219249 81.4 56.8216822 0 0 1 mi. Jul 1970 216822 3.05 216822 85.9 61.8 216822 0 0 1 mi. Aug 1970 216822 1.30 219249 83.5 54.7 216822 0 0 1 mi. Sep 1970 216822 4.52 216822 '70.9 51.6 216822 0 0 1 mi. Oct 1970 216822 6.26 219249 60.9 38.6 216822 0 0 1 mi. Nov 1970 216822 2.67 216822 40.5 26.6 216822 1 5.0 .6 1 mi. Dec 1970 216822 .58 219249 28.2 7.9 216822 113.0 3.7 1 mi. Jan 1971 216822 .94 216822 16.5 -2.3216822 14.1 11.6 1 mi. Feb 1971 216822 .97 472556 25.0 9.4 216822 2.6 16.2 1 mi. Mar 1971 216822 .60 216822 36.4 20.2 216822 1.9 11.3 1 mi. Apr 1971 216822 .80219249 60.7 31.6 216822 .6 .4 1 mi. May 1971 216822 3.10 472556 67.7 44.3 216822 0 0 1 mi. Jun 1971 216822 5.18 216822 82.1 62.4 216822 0 0 1 mi. Jul 1971 216822 3.51 472556 79.2 57.9 216822 0 0 1 mi. Aug 1971 216822 .95 216822 81.5 57.6 216822 0 0 1 mi. Sep 1971 216822 4.06 216822 73.6 53.2 216822 0 0 1 mi. Oct 1971 216822 4.06 472556 62.7 45.3 216822 0 0 1 mi. Nov 1971 216822 2.02 472556 40.0 27.5 216822 5.9 .7 1 mi. Dec 1971 216822 .64 472556 25.8 11.2 216822 11.6 4.0 1 mi. Jan 1972. 216822 .72 472556 16.4 -2.5 216822 1 1.9 9.4 1 mi. Feb 1972 216822 .32 219249 22.9 .2 216822 2'.9 14.2 1 mi. Mar 1972 216822 .89472556 34.9 18.1 216822 9.0 9.2 1 mi. Apr 1972 216822 2.06 472556 51.8 32.5 216822 2.0 .1 1 mi. May 1972 216822 1.95 472556 73.1 51.4 216822 0 0 1 mi. Jun 1972 216822 3.00 472556 79.0 55.1 216822 0 0 1 mi. Jul 1972 216822 8.50 216822 80.7 59.9 216822 0 0 1 mi. Aug 1972 216822 2.88472556 80.2 60.4216822 0 0 l mi. Sep 1972 216822 3.73 472556 69.1 49.5 216822 0 0 1 mi. Oct 1972 216822 2.86 472556 53.8 36.0 216822 0 0 1 mi. Nov 1972 216822 1.35472556 36.9 26.2 216822 0 0 1 mi. Dec 1972 216822 1.43472556 19.9 4.9216822 12.3 5.5 l mi. Jan 1973 216822 .92 472556 26.4 9.7 216822 .7.0 9.1 1 mi. Feb 1973 216822 .92 219249 30.5 10.4 216822 13.0 13.2 1 mi. Mar 1973 216822 1.92 472556 46.8 32.2 216822 0 3.1 1 mi. Apr 1973 216822 2.40 472556 54.1 35.5 216822 2.0 .1 1 mi. May 1973 216822 6.17 472556 65.6 45.2 216822 0 0l mi. 8 of 16 8/17/2008 10:54 AM
rugn unnsity rduius retrievat u/ iztu mgiiL~rNSL~y duis U~U lttp://climate.umn.edu/HIL~rachus/radiius.asp rweva Jun 1973 216822 2.30 472556 79.5 58.5 216822 0 0O1mi. Jul 1973 216822 4.06 472556 83.1 62.0 216822 0 0O1mi. Aug 1973 216822 4.80 472556 82.0 61.9 216822 0 0Olmi. Sep 1973 216822 2.67 472556 69.6 51.4 2`16822 0 Ol1mi. Oct 1973 216822 1.97 472556 64.5 45.0 216822 0 0O1mi. Nov 1973 216822 1.77 472556 41.2 26.1 216822 0 0O1mi. Dec 1973 216822 .69472556 23.9 9.7 216822 3.0 3.2 1 mi. Jan 1974 216822 .14 472556ý 22.7 5.4 216822 .3 5.5 1 mi. Feb 1974 216822 .87 472556 27.8 8.8 2168221 2.5 9.9 1 mi. Mar 1974 216822 .78 472556 38.5 21.0 216822 10.5 1.5 1 mi. Apr 1974 216822 3.08 472556 57.8 35.4 216822 6.0 .31 mi. May 1974 216822 3.42 219249 65.5 44.3 216822 0 Ol1mi. Jun 1974 216822 4.40 219249 77.1 54.1 216822 0 01lmi, Jul 1974 216822 1.36 472556 88.2 64.4 216822 0 0O1mi. Aug 1974 216822 2.93 472556 78.6 57.0 216822 0 0O1mi. Sep 1974 216822 .89 472556 69.2 45.3 216822 0 0O1mi. Oct 1974 216822 .84 472556 61.6 40.3 216822 .0 0O1mi. Nov 1974 216822 1.00 472556 42.3 26.9216822 1.0 0O1mi. Dec 1974 216822 .44 472556 30.3 17.4 216822 3.1 1.51lmi. Jan 1975 216822 2.65 472556 23.4 6.3 2168221 19.5 7.3 1 mi. Feb 1975 216822 .62 472556 25.2 8.7 216822 10.8 15.2 1 mi. Mar 1975 216822 1.53 472556 32.0 13.8 216822 16.5 14.2 1 mi. Apr 1975 216822 6.62 472556 47.0 28.5 216822 1.0 5.0 1 mi. May 1975 216822 4.25 472556 71.3 50.1 216822 0 0O1mi. Jun 1975 216822 7.53 472556 77.0 57.1 216822 0 0O1mi. Jul 1975 216822 1.76 472556 86.3 63.3 216822 0 0O1mi. Aug 1975 216822 5.60 472556 80.8 59.1 216822 0 0O1mi. Sep 1975 216822 1.57 472556 67.4 46.0 216822 0 0O1mi. Oct 1975 216822 .31 472556 63.9 40.6 216822 .0 0O1mi. Nov 1975 216822 4.76 472556 48.1 28.1 216822 2.6 .71 mi. Dec 1975 216822 1.24 472556 26.4 12.1 216822 2.8 1.0 1 mi. Jan 1976 216822 .76 472556 20.9 .2216822 8.9 4.9 1imi. Feb 1976 216822 .59 472556 35.3 16.0 216822 3.0 3.7 1 mi. Mar 1976 216822 2.79 472556 41.1 22.1 216822 7.1 1.0 1 ml. Apr 1976 216822 2.13 216822 62.3 40.6 216822 0 0 1 mi. May 1976 216822 1.31 216822 70.5 44.6 216822 0 0O1mi. Jun 1976 216822 3.31 472556 82.7 56.4 216822 0 0 1 mi. Jul 1976 216822 3.29 472556 87.4 61.2 216822 0 0 1 mi. Aug 1976 216822 1.15 472556 83.4 58.2 216822 0 0 1 mi. Sep 1976 216822 2.22 472556 73.9 47.4 216822 0 0 1 mi. Oct 1976 216822 .43 472556 54.8 32.5 472556 2.0 0 1 mi. Nov 1976 216822 0472556 36.4 16.6 216822 0 0 1 mi. Dec 1976 216822 .35472556 19.9 -.3216822 3.5 2.6 1 mi. Jan 1977 216822 .49 472556 9.3 -9.2 216822 11.3 6.5 1 mi. Feb 1977 216822 .67472556 30.6 12.8 216822 2.5 5.2 1 mi. Mar 1977 216822 2.57 216822 47.5 30.5 216822 8.0 2.1 1 mi. Apr 1977 216822 2.93472556 65.3 41.6 216822 0 0 1 mi. May 1977 216822 3.69 472556 79.5 54.8 216822 0 0 1 mi. Jun 1977 216822 4.37 472556 79.0 56.4 216822 0 0 1 mi. Jul 1977 216822 3.29 216822 85.5 64.6 216822 0 0 1 mi. Aug 1977 216822 3.45 472556 77.9 55.4 216822 0 0 1 mi. Sep 1977 216822 5.14 472556 70.6 51.2 216822 0 0 1 mi. Oct 1977 216822 3.73 472556 57.9 37.5 216822 0 0 1 mi. Nov 1977 216822 1.11 472556 39.9 23.8 216822 8.0 1.2 1 mi. Dec 1977 216822 1.61 472556 21.3 7.3 216822 8.5 5.5 1 mi. Jan 1978 216822 .49 472556 15.7 -2.0 216822 13.0 9.1 1 mi. Fe'b 1978 216822 .20 472556 21.8 1.5 216822 4.6 10.4 1 mi. Mar 1978 216822 .32 472556 38.0 14.1 216822 5.0 8.5 1 mi. Apr 1978 216822 3.76 472556 55.6 33.7 216822 0 0 1 mi. May 1978 216822 3.35 216822 73.2 50.0 216822 0 0 1 mi. 9 of 16 9 of 168/17/2008 10:54 AM
ruga ijzw4buy I UUIUS rt;tfICVaL U/1,41U riiititip://ctimate.umn.ectu/141Lraaius/ractius.asp UIL Lr~IM~yi~1tusUi~~va Jun 1978 216822 4.57 472556 78.4 54.4 216822 0 0 1 mi. Jul 1978 216822 9.69 472556 80.7 59.1 216822 0 0 1 mi. Aug 1978 218822 2.91 219249 83.3 56.7 216822 0 0O1mi. Sep 1978 216822 3.64 219249 78.9 51.7 216822 0 0O1mi. Oct 1978 216822 .41 219249 60.8 36.1 216822 0 0 1 mi. Nov 1978 216822 1.69 219249 41.0 19.1 216822 15.2 3.1 1 mi. Dec 1978 216822 .83219249 22.8 3.6 216822 11.2 10.9 1imi. Jan 1979 216822 .67219249 10.5 -9.3 216822 17.0 18.2l1mi. Feb 1979 216822 .51 219249 20.2 -3.6 216822 6.5 23.6 1 mi. Mar 1979 216822 2.80 219249 36.0 18.7 216822 2.5 15.0O1mi. Apr 1979 216822 1.35219249 53.1 30.1216822 .3 .6l1mi. May 1979 216822 2.88 219249 68.9 40.5 216822 0 0 1 mi. Jun 1979 216822 3.64 219249 78.8 52.6 216822 0 0 1 mi. Jul 1979 216822 3.65 219249 82.8 57.2 216822 0 0O1mi. Aug 1979 216822 7.97216822 78.3 61.0216822 0 0O1mi. Sep 1979 216822 .95219249 75.1 48.2216822 0 0O1mi. Oct 1979 216822 2.72 219249 59.6 34.3 216822 0 0 1 mi. Nov 1979 216822 1.85 219249 41.4 24.0 216822 1.0 .11 mi. Dec 1979 216822 .61 219249 35.7 16.3 216822 2.0 .11 mi. Jan 1980 216822 1.32219249 23.6 5.8 216822 9.8 3.5 1mi. Feb 1980 216822 .66 219249 25.7 2.6 216822 6.5 7.1 1 mi. Mar 1980 216822 .76 219249 37.0 14.8216822 8.6 4.51 mi. Apr 1980 216822 1.18219249 61.0 32.9 216822 7.0 .91mi. May 1980 216822 2.83 219249 76.3 44.0 216822 0 0.1 mi. Jun 1980 216822 3.67 219249 80.7 53.9 216822 0 0 1 mi. Jul 1980 216822 1.10216822 87.4 63.7216822 0 0O1mi. Aug 1980 216822 7.78 219249 81.7 58.2 216822 0 0O1mi. Sep 1980 216822 6.47 219249 73.7 47.9 216822 0 0 1 mi. Oct 1980 216822 .92 472556 55.3 33.3 216822 0 0O1lMi. Nov 1980 216822 .11 472556 46.2 25.4 216822 .5 0 1 mi. Dec 1980 216822 .27472556 28.1 9.9216822 6.0 .1.2I1mi. Jan 1981 216822 .10 472556 30.1 6.2 216822 2.3 .71 mi. Feb 1981 216822 2.62 472556 32.8 12.1 216822 14.1 3.8 1 mi. Mar 1981 216822 .53 472556 47.8 22.9 216822 .8 0 1 mi. Apr 1981 216822 2.80472556 61.0 36.9216822 0 0O1mi. May 1981 216822 2.82 472556 68.7 42.3 216822 0 0 1 mi. Jun 1981 216822 5.41 472556 78.0 53.0 216822 0 0 1 mi. Jul 1981 216822 3.02 216822 82.4 64.2 216822 0 0 1 mi. Aug 1981 216822 5.67472556 79.3 57.0216822 0 0O1mi. Sep 1981 216822 1.28472556 71.5 44.9216822 0 0Olmi. Oct 1981 216822 2.99472556 56.7 33.1216822 .8 0Olmi. Nov 1981 216822 .62472556 46.2 24.8216822 1.5 .3I1mi. Dec 1981 216822 .81 472556 25.7 7.2 216822 10.5 3.6 1 mi. Jan 1982 216822 1.71 472556 14.3 -10.9 216822 36.0 14.0O1mi. Feb 1982 216822 .18 472556 26.0 2.2 216822 5.0 16.7 1 mi. Mar 1982 216822 1.36 472556 36.8 16.7 216822 3.0 10.8 1 mi. Apr 1982 216822 2.00 472556 54.1 27.2 216822 1.5 .11 mi. May 1982 216822 5.43 472556 73.0 46.6 216822 0 0 1 mi. Jun 1982 216822 2.05 472556 74.9 45.3 216822 0 0 1 mi. Jul 1982 216822 4.98 472556 84.9 56.7 216822 0 0 1 mi. Aug 1982 216822 3.28 472556 80.4 52.5 216822 0 0 1 mi. Sep 1982 216822 5.04 472556 69.6 47.3 216822 0 0 1 mi. Oct 1982 216822 3.75 472556 60.3 38.1 216822 0 0 1 mi. Nov 1982 216822 2.99 472556 39.1 22.0 216822 2.5 .41 mi. Dec 1982 .216822 2.53472556 33.2 17.0216817 11 .5 1.0 1Imi. Jan 1983 216822 .75 472556 27.8 10.2 216822 3.3 3.8 1 mi. Feb 1983 216822 .64472556 33.0 17.4216822 8.3 9.4 1 mi. Mar 1.983 216822 2.02 472556 41.2 23.8 216822 10.0 I2.2 1 mi. Apr 1983 216822 3.33 472556 52.0 29.0 216822 18.0 .91 mi. May 1983 216822 3.86 472556 65.4 40.2 216822 0 0 1 mi. 10 of 16 10 of 168/17/2008 10:54 AM
tug[i liziNsity rautus retneval U/ 12 1U nignLDINS1y raiu retievi UILLUhttp://cliinate.umn.edu/HlDradius/radius.asp Jun 1983 216822 2.35 472556 79.0 53.5 216822 0 0 1 mi. Jul 1983 216822 5.04 472556 85.6 60.8 216822 0 0 1 mi. Aug 1983 216822 2.59 472556 85.4 59.9 216822 0 o i mi. Sep 1983 216822 4.04 472556 72.4 47.9 216822 0 0 1 mi. Oct 1983 216822 1.78 472556 58.9 35.2 216822 0 0 1 ml. Nov 1983 216822 3.41 472556 39.7 24.8 216822 20.0 2.2 1 mL. Dec 1983 216822 .98 472556 13.7 -8.4 216822 17.0 16.7 1 mi. Jan 1984 216822 .63 472556 22.3 -1.6 216822 11.0 16.1 1 mi. Feb 1984 216822 1.10 472556 36.9 15.8 216822 0 8.6 1 mi. Mar 1984 216822 2.28 472556 34.7 12.3 216822 17.0 4.1 1 mi. Apr 1984 216822 3.94472556 56.3 32.1 216822 2.0 A Ilmi. May 1984 216822 2.94 472556 67.8 39.0 216822 0 0 1 mi. Jun 1984 216822 2.69 472556 79.9 54.7 216822 0 0 1 mi. Jul 1984 216822 4.78 472556 82.3 53.5 216822 0 0 1 mi. Aug 1984 216822 2.49 472556 83.7 55.3 216822 0 0O1mi. Sep 1984 216822 2.12 472556 70.8 39.1 216822 0 0O1mi. Oct 1984 216822 4.40 472556 61.4 34.8 216822 0 0O1mi. Nov 1984 216822 2.09472556 43.0 18.7216822 0 0O1mi. Dec 1984 216822 1.66 472556 28.6 7.9 2168221 13.0 2.7 1 mi. Jan 1985 216822 .35 472556 22.0 .3216822 3 3.1 1 mi. Feb 1985 216822 .36 472556 25.5 4.4 216822 ~.5 7.9 1 mi. Mar.1985 216822 2.15 472556 46.6 24.8216822 16.5 2.3 1 mi. Apr 1985 216822 2.33 472556 64.4 37.0 216822 3.0 .2 1 mi. May 1985 216822 3.90 472556 75.1 47.5 216822 0 01lmi. Jun 1985 216822 1.53 472556 75.9 49.2 216822 0 0O1mi. Jul 1985 216822 1.87 472556 83.8 54.3 216822 0 0O1mi. Aug 1985 216822 5.22 472556 76.6 51.5216822 0 0 1 mi. Sep 1985 216822 5.54 472556 70.1 43.6 216822 0 0 1 mi. Oct 1985 216822 2.70 472556 58.9 33.4 216822 0 0 1 mi. Nov 1985 216822 1.20 472556 33.6 15.4 216822 13. 5 1.9l1mi. Dec 1985 216822 1.26472556 18.5 -4.2216822 23.5 11.4 1imi. Jan 1986 216822 .72 472556 26.3 5.6 216822 .7 9.8 1 mi. Feb 1986 216822 .82 472556 25.4 4.0 216822 14.0 17.6 1 mi. Mar 1986 216822 1.70 472556 44.5 21.6216822 40 9.7 1 mi. Apr 1986 216822 5.02 472556 62.4 36.9 216822 0 0 1 mi. May 1986 216822 3.04 472556 71.5 45.7 216822 0 0 1 mi. Jun 1986 216822 4.95 472556 80.0 53.6 216822 0 0 1 mi. Jul 1986 216822 7.92 472556 82.7 59.8 216822 0 0 1 mi. Aug 1986 216822 4.67 472556 77.8 52.4 216822 0 0 1 mi. Sep 1986 216822 9.13 472556 70.6 48.2 216822 0 0 1 mi. Oct 1986 216822 1.94 472556 60.2 35.6 216822 0 0 1 mi. Nov 1986 216817 1.10 472556 38.0 17.1 216817 0 1.8 7 mi. Dec 1986 216822 0 472556 31.1 12.7 216822 1.7 1 mi. Jan 1987 216822 .40 472556 30.7 8.6 216822 E 8.21.0 1 mi. Feb 1987 216822 0472556 41.8 16.5 216822 1.5 1 mi. Mar 1987 216822 1.15 472556 49.5 23.7 216822 .0 I.21 mi. Apr 1987 216822 .37 472556 68.4 31.8 216822 0 1 mi. May 1987 216822 2.58 472556 73.3 46.2 216822 0 0 1 mi. Jun 1987 216822 1.70472556 83.8 53.8216822 0 Ol1mi. Jul 1987 216822 10.87 472556 83.5 60.5216822 0 0O1mi. Aug 1987 216822 4.66 472556 74.4 53.5 216822 0 01lmi. Sep 1987 216822 .67 472556 74.0 45.2 216822 0 0O1mi. Oct 1987 216822 1.85472556 55.2 27.9 216822 2.5 0 1 mi. Nov 1987 216822 1.92 472556 47.0 24.8 216822 .5 0O1mi. Dec 1987 216822 1.27472556 31.8 14.2 216822 7.5 1.5 1 mi. Jan 1988 216822 1.07 472556 17.7 -5.2 216822 14.0 7.6 1 mi. Feb 1988 216822 .19 472556 22.5 -1.1 216822 6.8 10.3 1 mi. Mar 1988 216822.1.17 472556 45.0 20.8 216822 2.0 .2 1 mi. Apr 1988 216822 1.64 472556 61.4 32.7 216822 0 0Olmi. May 1988 216822 3.60 472556 77.9 48.9 216822 0 0O1mi. 11 of 16 11 of 168/17/2008 10:54 AM
11i6l1 L.JI,111LblI.) ldUllU ICU luvul V/ I1/ IU nttp://c ffmate.umn.eaWl-luraalus/raalus.asp Jun 1988 216822 .63 472556 87.6 58.3 216822 0 0 1 mi. Jul 1988 216822 1.18 472556 90.5 60.7 216822 0 0 1 mi. Aug 1988 216822 3.70 219249 87.4 61.8 216822 0 0 1 mi. Sep 1988 216822 4.82472556 74.5 49.1 216822 0 0 1 mi. Oct 1988 216822 .73472556 57.1 31.7 216822 0 0 1 mi. Nov 1988 216822 2.74 472556 42.4 25.8 216822 1.1 .1 1 mi. Dec 1988 216822 .87 219249 31.8 10.3216822 4.0 1.0 1 mi. Jan 1989 216822 .36 219249 34.1 12.8216822 2.5 3.1 1 mi. Feb 1989 216822 .46 472556 22.5 -2.5216822 7.0 6.4 1 mi. Mar 1989 216822 2.77 472556 36.9 15.2 216822 17.5 6.2 1 mi. Apr 1989 216822 2.23472556 58.1 32.5 216822 0 0 1 mi. May 1989 216822 3.59 472556 70.3 43.5 216822 0 0 1 mi. Jun 1989 216822 3.05472556 77.5 53.2216822 0 0 1 mi. Jul1989 216822 2.29 472556 86.1 61.8 216822 0 0 1 mi. Aug 1989 216822 3.35 472556 81.7 57.7 216822 0 0 1 mi. Sep 1989 216822 1.37 216822 74.4 49.7 216822 0 0 1 mi. Oct 1989 216822 .54 216822 64.7 38.1216822 0 0 1 mi. Nov 1989 216822 1.85 216822 39.5 21.3 216822 4.5 0 1 mi. Dec 1989 216822 .22 216822 21.1 1.6 216822 2.5 .9 1 mi. Jan 1990 216822 .44 216822 36.7 16.6216822 7.0 2.0 1 mi. Feb 1990 216822 .58216822 34.3 11.4216822 8.1 3.6 1 mi. Mar 1990 216822 3.51 216822 47.0 26.7 216822 1.0 .1 1 mi. Apr 1990 216822 5.35216822 59.5 36.8216822 0 01mi. May 1990 216822 4.51 216822 67.1 45.2 216822 0 0 1 mi. Jun 1990 216822 8.07 216822 80.1 60.7 216822 0 0 1 mi. Jul 1990 216822 3.88 216822 82.9 63.1 216822 0 0 1 mi. Aug 1990 216822 1.27216822 81.5 61.6 216822 0 0 1 mi. Sep 1990 216822 1.31216822 75.4 54.9 216822 0 0 1 mi. Oct 1990 216817 1.96472556 61.5 34.8216817 0 0 7 mi. Nov 1990 216822 .21 216822 49.4 29.3 216822 0 0 1 mi. Dec 1990 216822 .91 216822 28.9 9.9 216822 m 4.2 1 mi. Jan 1991 216822 .25 216822 23.1 4.7 216822 3.0 4.6 1 mi. Feb 1991 216822 .60216822 35.9 15.2216822 6.0 4.0 1 mi. Mar 1991 216822 3.10 216822 44.4 25.1 216822 4.5 1.8 1 mi. Apr 1991 216822 2.93 216822 60.8 40.0 216822 0 0 1 mi. May 1991 216822 5.10216822 69.6 54.7 216822 0 0 1 mi. Jun 1991 216817 3.21 472556 82.9 59.8216817 0 0 7mi. Jul 1991 216822 4.14 216822 81.2 62.4216822 0 0 1 mi. Aug 1991 216822 3.02216822 81.5 60.8216822 0 0 1 mi. Sep 1991 216822 4.54 216822 68.4 48.8 216822 0 0 1 mi. Oct 1991 216822 1.14216822 56.8 36.0216822 0 0 1 mi. Nov 1991 216822 4.21 216822 31.3 15.8 216817 28.9 6.2 1 mi. Dec 1991 216822 1.21 216822 28.7 12.2 216822 9.0 4.9 1 mi. Jan 1992 216822 .77 216822 28.6 13.9216817 4.9 4.0 1 mi. Feb 1992 216822 .60216822 33.3 21.0216822 3.6 3.1 1 mi. Mar 1992 216822 1.53 216822 39.7 22.8 216817 14.0 1.2 mi. Apr 1992 216822 2.46216822 49.7 34.4216822 0 01 mi. May 1992 216822 .70216822 72.0 47.1216822 0 0 1 mi. Jun 1992 216822 2.87216822 75.4 52.6216822 0 0 1 ml. Jul1992 216822 3.19216822 74.5 55.6216822 0 0 1 mi. Aug 1992 216822 2.60 216822 76.1 53.9216822 0 0 1 mi. Sep 1992 216822 9.37 216822 69.9 47.6 216822 0 0 1 mi. Oct1992 216822 3.33216822 57.6 36.0216822 0 0 1 mi. Nov 1992 216822 2.56216822 36.4 26.8 216822 m 0 1 mi. Dec 1992 216822 1.37 216822 28.5 13.3 216817 13.5 1.8 1 mi. Jan1993 216822 .77 216822 22.5 1.2 216817 17.0 9.5 1 mi. Feb 1993 216822 .30216822 24.1 6.7 216822 5.1 11.1 1 mi. Mar1993 216817 1.35 472556 38.0 18.0 216817 5.6 3.9 7 mi. Apr1993 216822 3.99216822 51.6 33.7 216822 6.0 .2 1 mi. May 1993 216822 5.85 216822 65.5 48.7 216822 0 0 1 mi. 12 of 16 8/17/2008 10:54 AM
Mgj:Il LOIN_,MLY F'dUlUS lM[rC~val U ! /tZI U lattp://cllmate.umn.edlu/1-Hlladius/radius.asp Jun 1993 216822 6.68 216822 72.9 55.0 216822 0 0 1 mi. Jul 1993 216822 5.40 216822 77.3 62.8 216822 0 0 1 mi. Aug 1993 216822 5.60 216822 79.1 62.4 216822 0 0 1 mi. Sep 1993 216822 1.67 216822 63.5 46.3 216822 0 0 1 mi. Oct 1993 216822 .64 216822 57.0 36.0 216822 ,0 0 1 mi. Nov 1993 216822 1.53 216822 37.8 24.2 216822 5.5 .7 1 mi. Dec 1993 216822 .56 216822 27.9 14.8216822 3.8 1.91 mi. Jan 1994 216822 .76 216822 13.9 -6.3 216822 2.2.7 8.2 1 mi. Feb 1994 216822 .31 216822 20.5 .2216822 81.5 8.5 1 mi. Mar 1994 216822 .23 216822 42.1 24.1 216822 0 ..6 1 mi. Apr 1994 216822 3.13 216822 55.5 34.9 216822 0 01 mi. May 1994 216822 2.26 216822 70.5 47.7 216822 0 01 mi. Jun 1994 216822 4.79216822 79.6 58.5216822 0 01 mi. Jul 1994 216822 4.05 216822 78.3 59.0 216822 0 01 mi. Aug 1994 216822 7.32 216822 76.8 57.1 216822 0 01mi. Sep 1994 216822 8.74 216822 72.5 54.5 216822 0 01 mi. Oct 1994 216822 3.02 216822 60.1 43.9 216822 0 01 mi. Nov 1994 216822 1.23 216822 45.1 29.8 216822 m .21 mi. Dec 1994 216822 .47 216822 31.9 16.4216822 5.5 3.3 1 mi. Jan 1995 216822 .37 216822 23.2 8.1 216822 4.1 2.5 1 mi. Feb 1995 216822 .22216822 28.0 8.0216822 2.0 2.4 1 mi. Mar 1995 216822 2.36 216822 40.8 24.2 216822 5.0 1.5 1 mi. Apr 1995 216822 2.29 216822 49.4 32.5 216822 .3 0 1 mi. May 1995 216822 2.54 216822 65.5 46.9216822 0 01 mi. Jun 1995 216822 2.11 216822 81.0 60.4216822 0 01 mi. Jul 1995 216822 2.07 216822 82.2 61.6 216822 0 01 mi. Aug 1995 216822 3.48 216822 83.2 65.0 216822 0 01mi. Sep 1995 216822 1.82 216822 69.5 48.0 216822 0 01 mi. Oct 1995 216822 5.32 216822 57.0 39.7 216822 m 01 mi. Nov 1995 216822 1.08 216822 32.5 20.3 216822 6.8 .3 1 mi. Dec 1995 216822 .83 216822 25.4 9.5 216822 12.1 3.7 1 mi. Jan 1996 216822 1.82 216822 19.7 -2.4 216817 15.0 8.8 1 mi. Feb 1996 216822 .10 216822 25.2 5.8 216822 .5 9.5 1 mi. Mar 1996 216822 1.75 216822 32.7 13.2 216822 12.2 5.2 1 mi. Apr 1996 216822 .67 216822 50.5 30.7 216822 0 I mi. May 1996 216822 2.46 216822 63.0 46.8 216822 0 0 1 mi. Jun 1996 216822 4.44 216822 77.0 57.8 216822 0 0 1 mi. Jul 1996 216822 1.46 216822 79.4 59.2 216822 0 0 1 mi. Aug 1996 216822 2.92 216822 80.5 58.1 216822 0 01 mi. Sep 1996 216817 2.86 472556 70.3 49.2216817 0 07mi. Oct 1996 216822 3.48 216822 59.5 38.2 216822 0 01 mi. Nov 1996 216822 3.51 216822 32.2 18.3216822 12.1 2.6 1 mi. Dec 1996 216822 1.09216822 21.7 7.8 216817 19.3 7.7 1,mi. Jan 1997 216822 .79216822 19.4 .3216817 1 r.5 12.0 1 mi. Feb 1997 216822 .44 216822 28.9 9.4 216817 5.8 14.0 1 mi. Mar 1997 216822 1.02 216822 37.1 20.5 216822 5.0 3.7 1 mi. Apr 1997 216822 .65 216822 53.1 32.9216822 0 01mi. May 1997 216822 2.51 216822 62.4 42.7 216822 0 1 mi. Jun 1997 216822 3.07 216822 80.3 57.4 216822 0 0 1 ml. Jul 1997 216822 10.48 216822 79.3 60.8216822 0 0 1 ml. Aug 1997 216822 4.25 216822 76.5 58.9 216822 0 0 1 ml. Sep 1997 216822 3.43216822 72.1 53.2216822 0 0 1 ml. Oct 1997 216822 1.58216822 59.6 38.7216822 0 0.1 11 mi. ml. Nov 1997 216822 .62 216822 35.4 21.7216822 3.5 Dec 1997 216822 .14 216822 33.2 19.9 216822 3.0 .2 1 ml. Jan 1998 216822 1.11 216822 25.0 12.7 216817 21.0 8.0 1 mi. Feb 1998 216822 1.27 216822 37.4 24.8 216822 .3 3.9 1 mi. Mar 1998 216822 4.23216822 38.8 23.5 216822 3.0 .3 1 mi. Apr 1998 216822 4.13 216822 60.6 40.8 216822 0 0 1 mi. May 1998 216822 5.28 216822 76.3 52.7 216822 0 0 1 mi. 13 of 16 8/17/2008 10:54 AM
t-tugl Liistl.£Sly radOmUS retreval uo/l.i 1 usttp://c Imfate.umn.eclu/IHillraclius/radlus.asp Jun 1998 216822 7.41 216822 74.4 55.1 216822 0 0 1 mi. Jul 1998 216817 1.16 472556 81.7 60.0 216817 0 07mi. Aug 1998 216822 5.35216822 81.1 61.6216822 0 0 1 mi. Sep 1998 216822 2.82 216822 78.9 52.8 216822 0 0 1 mi. Oct 1998 216822 2.25216822 60.7 40.9 216822 0 0 1 mi. Nov 1998 216822 1.16 216822 44.6 29.0216822 0 0 1 mi. Dec 1998 216822 .24 216822 35.3 16.4216822 1.0 .41 mi. Jan 1999 216817 1.73216822 19.2 2.1216817 28.3 8.17 mi. Feb 1999 216822 .74216822 35.0 17.6216822 4.0 4.4 1 mi. Mar 1999 216822 1.42216822 43.0 20.7216822 16.0 3.5 1 mi. Apr 1999 216822 4.70216822 57.4 40.2 216822 0 0 1 mi. May 1999 216822 5.42 216822 69.9 51.2216822 0 0 1 mi. Jun 1999 216822 3.45 216822 75.9 57.7 216822 0 0 1 mi. Jul 1999 216822 3.86 216822 84.9 64.1 216822 0 0 1 mi. Aug 1999 216822 3.60 216822 78.6 59.6 216822 0 01mi. Sep 1999 216822 1.36 216822 71.5 48.5 216822 0 01 mi. Oct 1999 216822 1.20 216822 58.9 35.1 216822 0 01 mi. Nov 1999 216822 1.33 216822 51.4 30.2 216822 0 01mi. Dec 1999 216822 .36 216822 32.8 15.6 216822 2.5 1.3 1 mi. Jan 2000 216822 .72 216822 24.3 3.8 216822 8.8 6.5 1 mi. Feb 2000 216822 1.18 216822 34.8 16.1 216822 5.0 7.1 1 mi. Mar 2000 216822 .85 216822 49.8 28.8 216822 0 0 1 mi. Apr 2000 216822 1.57 216822 56.8 34.5 216822 0 0 1 mi. May 2000 216822 3.22 216822 69.8 48.4 216822 0 0 1 mi. Jun 2000 216822 7.98 216822 75.9 54.8 216822 0 0 1 mi. Ju12000 216822 4.11 216822 80.8 62.5 216822 0 0 1 mi. Aug 2000 216822 3.75 216822 80.8 61.0 216822 0 0 1 mi. Sep 2000 216822 1.92 216822 72.1 49.1 216822 0 0 1 mi. Oct 2000 216822 .62 216822 63.3 41.8216822 0 0 1 mi. Nov 2000 216822 4.64 216822 38.5 25.3 216822 4 .5 1.41 mi. Dec 2000 216822 1.02 216822 14.7 .3 216822 22. 3 6.21 mi. Jan 2001 216822 1.11 216822 27.3 8.2 216822 8. 5 8.21 mi. Feb 2001 216822 1.23 216822 21.6 -.7 216822 10. 6 11.01 mi. Mar 2001 216822 .73 216822 35.5 17.2 216822 6. 0 10.9 1 mi. Apr 2001 216822 5.13 216822 56.9 37.7 216822 ) .31 mi. May 2001 216822 3.71 216822 68.0 50.1 216822 0 01mi. Jun 2001 216822 5.20 216822 77.4 58.1 216822 0 01mi. Ju12001 216822 2.50 216822 84.0 62.1 216822 0 0 1 mi. Aug 2001 216822 2.90 216822 82.6 61.3 216822 0 01mi. Sep 2001 216822 2:40 216822 69.3 49.4 216817 0 01 mi. Oct 2001 216822 1.46216822 58.2 37.1 216822 0 01mi. Nov 2001 216822 2.10216822 55.4 34.9216822 0 01mi. Dec 2001 216822 .18 216822 35.9 20.8216822 n .31 mi. Jan 2002 216822 .62 216822 31.5 15.5 216822 4. 4 2.21 mi. Feb 2002 216822 .49 216822 35.8 15.6 216822 4.8 1.01 mi. Mar 2002 216822 2.00 216822 32.4 16.1 216822 7.1 1.7 1 mi. Apr 2002 216822 3.42 216822 54.4 35.3 216822 8. 0 .7 1 mi. May 2002 216822 2.69 216822 65.0 43.3 216822 0 01 mi. Jun 2002 216822 10.28 216822 79.3 59.1 216822 0 01 mi. Jul 2002 216822 4.30 216822 86.3 65.6 216822 0 01mi. Aug 2002 216822 7.61 216822 79.5 60.8 216822 0 01mi. Sep 2002 216822 4.78 216822 74.2 55.4 216822 0 0 l mi. Oct 2002 216822 4.64 216822 50.5 35.8 216822 0 01mi. Nov 2002 216822 .05 216822 39.2 24.4 216822 0 01mi. Dec 2002 216822 .17 216822 32.7 17.3 216822 2. 3 .2 1 mi. Jan 2003 216817 .90 216822 22.6 6.2 216822 .4 7 mi. Feb 2003 216822 .54 216822 25.6 4.0 216822 5. 8 2.4 1 mi. Mar 2003 216822 1.34 216822 40.1 21.5 216817 9.5 1.01 mi. Apr 2003 216822 3.14 216822 57.8 35.0 216822 0 01mi. May 2003 216822 5.01 216822 67.3 47.5 216822 0 01 mi. 14 of 16 8/17/2008 10:54 AM
ruait urnsi*ty rduius retrievai v / IgzItu rfttp://lllmate.umn.eciu/HlImdlius/radius.asp Jun 2003 216822 2.33 216822 77.2 56.6 216822 0 0 1 mi. Jul2003 216822 1.87216822 82.3 62.8216822 0 0 1 mi. Aug 2003 216822 .84216822 83.9 61.1216822 0 0 1 mi. Sep 2003 216822 1.60-216822 73.3 49.6 216822 0 0 1 mi. Oct 2003 216822 .67 216822 60.7 38.5 216822 0 0 1 mi. Nov 2003 216822 1.21 216822 39.6 25.4 216822 0 0 1 mi. Dec 2003 216822 .59216822 32.0 17.2216822 6.6 3.5 1 mi. Jan 2004 216822 .38216822 19.9 4.2 216817 5.8 1.3 1 mi. Feb 2004 216822 1.52 216822 28.2 10.5216822 18.5 9.4 1 mi. Mar 2004 216822 4.06 216822 43.6 26.6 216822 5.8 1.9 1 mi. Apr 2004 216822 2.05216822 60.1 35.2 216822 0 0 1 mi. May 2004 216822 6.23 216822 66.0 44.3 216822 0 0 1 mi. Jun 2004 216822 4.88 216822 73.8 56.3 216822 0 0 1 mi. Jul 2004 216822 3.62 216822 80.6 60.4 216822 0 0 1 mi. Aug 2004 216822 2.58 216822 74.7 54.4216822 0 0 1 mi. Sep 2004 216822 4.66 216822 77.2 55.1 216822 0 0 1 mi. Oct 2004 216822 2.14 216822 59.3 40.4216822 0 0 1 mi. Nov 2004 216822 m216822 m m216822 0 01mi. Dec 2004 216822 .43 216822 30.5 14.7 216822 .3 0 1 mi. Jan 2005 216822 .86216822 22.4 6.8 216822 7.8 3.2 1 mi. Feb 2005 216822 1.20216822 33.5 16.9216822 11.8 3.0 1 mi. Mar 2005 216822 1.96 216822 39.1 19.1 216822 8.3 2.3 1 mi. Apr 2005 216822 1.46216822 61.0 40.3216822 0 01 mi. May 2005 216822 3.81 216822 63.7 45.7 216822 0 0 1 mi. Jun 2005 216822 m216822 m m213567 0 01mi. Jul 2005 216822 1.83216822 84.8 63.3 216822 0 0 1 mi. Aug 2005 216822 m216822 m m213567 0 01mi. Sep 2005 216822 6.04 216822 76.0 53.8 216822 0 0 1 mi. Oct 2005 216822 1.13216822 62.4 41.8216822 0 0 1 mi. Nov 2005 216822 1.57 216822 44.8 27.4 216822 2.2 .1 1 mi. Dec 2005 216822 1.00216822 23.9 12.5216822 16.0 4.0 1 mi. Jan 2006 216822 .98216822 34.6 21.4216822 5.5 1.9 1 mi. Feb 2006 216822 .27 216822 28.6 10.7 216822 1.0 .7 1 mi. Mar 2006 216822 .72216822 40.5 22.2216822 11.0 5.9 1 mi. Apr 2006 216822 2.44216822 62.1 41.2216822 0 0 1 mi. May 2006 216822 3.14 216822 68.8 50.4 216822 0 0 1 mi. Jun 2006 216822 1.20 216822 79.8 57.3 216822 0 0 1 mi. Jul 2006 216822 1.69 216822 87.3 64.1 216822 0 0 1 mi. Aug 2006 216822 6.76216822 80.7 61.2216822 0 0 1 mi. Sep 2006 216822 3.26 216822 67.9 49.3 216822 0 0 1 mi. Oct 2006 216822 1.52 216822 55.6 34.8 216822 0 0 1 mi. Nov 2006 216822 1.39 216822 44.2 27.1 216822 4.0 .4 1 mi. Dec 2006 216822 1.59216822 34.8 21.1 216822 0 0 1 mi. Jan 2007 216822 1.29216822 27.5 12.1 216822 1.0 1.7 1 mi. Feb 2007 216822 1.20 216822 20.0 2.2 216822 11.2 3.3 1 mi. Mar 2007 216822 2.75 216822 45.2 26.5 216822 14.0 4.4 1 mi. Apr 2007 216822 1.56 216822 55.7 36.2 216822 0 0 1 mi. May 2007 216822 4.00 216822 74.3 49.9 216822 0 0 1 mi. Jun 2007 216822 2.71 216822 81.4 59.7 216822 0 0 1 mi. Jul 2007 216822 .90 216822 84.6 60.9 216822 0 0 1 mi. Aug 2007 216822 10.37 216822 80.1 61.0 216822 0 0 1 mi. Sep 2007 216822 3.20 216822 75.7 51.7 216822 0 01 mi. Oct 2007 216822 4.18 216822 63.4 46.2 216822 0 01mi. Nov 2007 216822 .20 216822 42.8 26.9 216822 0 01 mi. Dec 2007 216822 1.29216822 23.7 8.1 216822 17.0 5.2 1 mi. Jan 2008 216822 .20 216822 21.2 3.1 216822 3.2 5.2 1 mi. Feb 2008 216822 .30 216822 22.6 3.3 216822 6.9 7.3 1 mi. Mar 2008 216822 .90 216822 36.7 16.8 m n 1 mi. Apr 2008 216822 5.09 216822 52.3 34.2 m rn I mi. May 2008 216822 2.31 216822 65.8 44.9 m mlmi. 15 of 16 8/17/2008 10:54 AM
nign orr4sity ramus retnevai u / i z i u riig aais rtrieal L~~1N~ty /1 IUhttp://ctimate-umn-edu/1HIDradiu Jun 2008 216822 4.24 216822 76.9 58.1 m mimi. Jul 2008 216822 2.56 216822 84.2 60.8 m mimi. Aug 2008 216822 m216822 m m m. mImi. Sep 2008 n m m m m999mi. Oct 2008 rr m m m m999mi. Nov 2008 n m m m m999mi. IT Dec 2008 n m m m m999mi. Where indicated: Missing values are shown as 'm'. Days on which precip accumulated in the gage are shown as '-'. 'TTTT RR SS' is the 'public land survey(PLS)' or 'legal' location of the observed data. Section values greater 36 are SECTIC TIC' locations plus 100. 'NWS ID' the National Weather Service Cooperative station number. Note that the 'PLS' will always be correct for precipitation data while the 'NWS ID' will always be correct for the temperature data. If no PLS info is supplied the the 'NWS ID' number applies to all shown data. return to retrieva'Pl se 1e-ction, State Climatology Office - MnDNR - Waters, 1996-2002 You can send e-mail to the State Climatology Office. 16 of 16 8/17/2008 10:54 AM
lILLIJ./ I %,mjaw.unwuUJ um/nilstfIndlexffemes.ntfl Minnesota and United States Climate Extremes Climate Extremes for Minnesota i Temperature Record Date Loca tion County Maximum 114 degrees F. July 29, 1917 Beardsley Big Stone July 6, 1936 Moorhead Clay Minimum -60 degrees F. February 2, 1996 near Tower St. Louis I Maximum 24-hour change 71 degrees F. April 3,1982 Lamberton Redwood Snow Maximum 24-hour snowfall 36.0 inches January 7, 1994 near Finland Lake Maximum single storm January 6-8, 46.5 inches near Finland Lake snowfall 1994 Maximum seasonal snowfall 170.5 inches 1949-1950 near Grand Cook Portage j 'near Grand Maximum snow cover 75 inchesý March 28, 1950Prtage Cook Earliest measurable snowfall 0.3 inches Sept. 14, 1964 International Falls Koochiching Latest measurable snowfall 1.5 inches June 4, 1935 Mizpah Koochiching Rain Maximum 24-hour total 15.10 inches August 19, 2007 Hokah Houston Maximum monthly total 23.86 inches August 2007 Hokah Houston Maximum annual total 53.52 inches 1991 St. Francis Anoka Minimum annual total 6.37 inches 1976 Ortonville Big Stone Longest dry spell 79 d- Beardsley, Canby, Marshall, Dawson Wind Maximum measured gust S110 mph August20, 1904 Minneapolis Hennepin (tornado) Pressure Maximum 31.11 inches! January 21, 1922: Collegeville Stearns Minimum 28.43 inches Nov. 10, 1998 Albert Lea, Austin : Cook What was the coldest windchill ever seen in Minnesota? The answer can be a little tricky because on November 2001 the formula on how to calculate the windchill was changed. Perhaps the coldest windchill the Twin Cities has ever seen was -67 with the new formula (-87 with the old formula) back on January 22nd 1936. The temperature was -34 with a wind speed of 20 mph. Without a lengthy state-wide wind record, it is
*difficult to say when was the coldest statewide windchill. There are some candidate dates though besides January 22, 1936. On January 9th and 10th, 1982 temperatures of -30 and winds of around 40mph were I of`2 8/17/2008 12:46 PM
IVA IVIULLIwaVL" CUIU bUI I ULLIJUH16 WLIUb ,, uAu ~A~ ~UII u-l k~uUIUUALUA uiuu~ LLI~IILuP.cuuiriaw.ulnn.eawwmulwMLfKoset-llmatology.fltm Wind Roses for Minnesota and surrounding cities The wind rose shows how often the wind comes from a certain direction. The directions have been split up into sixteen sections of 22.5 degrees. The longer a bar, the more often the wind comes from the corresponding direction. The wind rose presents a scale which can be used to read the relative frequency. All bars for each month count up to 100%. These wind roses were constructed for the MN/DOT Snow Climatology Project Click on the city to see the wind rose plots. Austin Municipal Mankato Alexandria Maple Lake Municipal Airport Baudette Marshall Bemidji Minneapolis/Lakeville Benson Municipal Minneapolis/St. Paul Intl. Big Fork Municipal Montevideo-Chippewa Brainerd Mora Municipal Brookings, SD Morris Municipal Cambridge New Ulm Municipal Cloquet-Carlton Co. Orr Regional Cook Municipal Ortonville nicipal Crookston Owatonn nnicipal Detroit Lakes Park Rapids Dodge Center Airport Princeton Municipal Duluth Pine River Sky Harbor (Duluth) Pipestone Municipal Eau Claire, WI Red Wing Ely Municipal Redwood Falls Eveleth-Virginia Municipal Rice Lake, WI Fairmont Rochester Fargo, ND Roseau Municipal Faribault Municipal Rush City Municipal Airport Flag Island Scotts Field (Crane Lake) Fosston Sky Harbor (Duluth) Glencoe Municipal Airport Silver Bay Glenwood Sioux Falls, SD Grand Forks, ND Staples Municipal Grand Marais (airport) South St. Paul Grand Marais (shore) St. Cloud Grand Rapids St. James Municipal Hallock St. Paul Hayward, WI Superior, WI Hibbing Thief River Falls Hutchinson Municipal Two Harbors International Falls Worthington Jackson Municipal Warroad La Crosse, WI Waskish Municipal Litchfield Municipal Watertown, SD Little Falls-Morrison County Wheaton Longville Municipal Willmar Municipal Madison-Lac Qui Parle Windom Municipal Winona Municipal Data prepared in conjunction with: Climatological Characterization of Snowfall and Snow Drift in Minnesota (for the Design of Living Snow Fences) MN/DOT Agreement No. 74708 Comments/Questions I of`2 8/17/2008 1:02 PM
... a...... Inu*, Iula anti MOuluunuiMg UIIuCS fttp://clunate.umn.edu/wind/windRoseClimatology.htm URL: http://climate.umn.edutwindtwindRoseClimatology.htm Last modified: March 15, 2005 2 of 2 2/117flnn2 I Ul .I[ I I *VVU Jt* =.J*
DU1T Jl. *,Jt
nup://ciimate.umn.eaulwma/nwlkjhit Wind Roses for Red Wing (KRGK) This wind rose data is from all non-calm winds three times a hour from approximately October 1996 to March 2001. Note that the plots below are for wind direction only and not an indication of wind speed. N
-s- January February March S
N ENE April
-E -a-May June ESE S
I of 2 8/17/2008 12:59 PM I of 2 8/17/2008 12:59PM
w wu zwbus lor neu w Mg t&Kk3y') lr Iuwmg wmui~u~ NKUS~)http://cliinate.umn.edu/wind/lagk.htm N ENE E July E --u- August
- September ESE S
N
-w-" October W E -s-November
~-December WS !SE I SSV SE S
Special thanks to: Mark Seeley, Martha Shulski, Kenny Blumenfeld and Amy Cecchi. Return to Minnesota Climatology Working Group Main page Comments/Questions URL: http:llclimate.umn.edu/wind/krgk.htm Last modified: October 6, 2004 2 of 2 8/17/2008 12:59 PM
iNLuLj query uutput -Page 1 of 29
, iGA Ufti and n.O~ rvice Sp~r Notioinal Eawiranrnernal Sateilie, Dam, atq Intarnation Setvice (NESOIS)
Dt C te _91~fC~i DOC >NOAA >NESDIS >NCDC Search Field: -_ --.... ... . . . Query Results 373 everit(s) were reported in Dakota County, Minnesota Mag: Magnitude between 01/01/1950 and 05/31/2008 (High Wind limited to Dth: Deaths speed greater than 0 knots). lnj: Injuries PrD: Property Damage Click on Location or County to display Details. CrD: Crop Damage Minnesota
*8/18/2008 http://www4.nCdc.noaa.gov/cgi-win/wwcgi.dll?wwevent-ston8ns
Page 2 of 29 NCDC: Query Output 0 I! II S8/18/2008 htip://'Www4.ncde.noaa.gov/cgi-win/wwcgi.dll?wwevent--stonns8//20
Page 3 of 29 iujWc: query uutput 0 II 88/18/2008 http-//wwWW4.ncdc.:noaa.gov/cgi-win/wwcgi.dll?wwevent-storms
Page 4 of 29 NO.: Query Uutput ir
*8/18/2008 http://www4.ncdc.noaa.gov/cgi-win/wwcgi.dll?wwevent--storms
iNLL)ju: yuery Uutput Page 5 of 29 0 II Ilin 1 II 54 DAKOTA 04/25/1986 1535 Hail 2.5001 0 0 0 55 DAKOTA 04/25/1986 1550 Hail 2.75 0 0 0 in. 56 DAKOTA ! 07/12/1986 [1930 : Tstm Wind 0 0 0 [o] kts. 57 DAKOTAý 07/27/1986 0400 Tstm Wind 0 0 0 0 kts. 58 DAKOTA 05/10/1987 1506 Hail I00 0 59 DAKOTA 05~/1O/1987 1506 ffHail ]I.00 in. fll00l0f0 [60 DAKOTA 05/13/1987 1836 Hail 0.75 0 0 [ 0 in. 61 DAKOTA 05/i3/19871 i-To*nado 0 II0 162 DAKOTA ]05/13/1 987][i185 Tlonmado IF01O IF 010K 63 DAKOTA 06/28/1987 1712 Tstm Wind 0 0 0 0 64 DAKOTA 107/20/1987[1745 Hail 1.75 7[. 0 jin.] 65 DAKOTA ____________ 07/20/1987 ______ 1815 _____ Hail ________in. 1.75 _ LW 166 DAKOTA 107/27/1987.1433. II[Tomado F1 0 Ii2soK I.o 67 DAKOTA 07/27/1987 1620 Tstm Wind 0 0j0 0 68 DAKOTA 05/07/1988 1730 Hail 1.750 [0 0 in. http://www4.ncdc.noaa.gov/cgi-win/wwcgi.dll?wwevent-storms S/118/2008
NUIJtC: Query output Page 6 of 29 0 69 DAKOTA 08/07/1988 1800 Tstm Wind 60 0 0 0 0 kts. 70 DAKOTA ____ ____ 71 DAKOTA ____ __ 05/23/1989 105/29/189175_ 05/29/l989 1355 Hail _ Hail _ _ __ 275 __10 0.75 0 o I _ 0 _ _ _ 0 72 DAKOTA 08/26/1990 0340 Tstm Wind 0 0 73 DAKOTA 05/28/1991 2210 Hail 0.5 0j 74 DAKOTA] 05/28/1991 2210 Tstrn Wind 0I 0i0 0 kts. 75 DAKOTA 05/30/1991 1523 Haill.00 7 f0 1K 76 DAKOTA 07/01/1991 0025 Tstln Wind f0 0 0 c0 0 77 DAKOTA 08/01/1992 In i2007 Haill0 1.00 78 DAKOTA j09/04/1992 0610 Hail j.5 j 79 WSt. Paul 08/18/1993 Thunderstorm 0 07 Winds kts. 80 Lakeville 08/27/1993 T2330 [hunderstorm 0 0 0 0 0 Winds ks 81 MNZ003 - 012- 01/05/1994 1100 Heavy Snow N/A 0 0 0 0 019>021 - 027 - 038 - 041>045 - 050>053 - 061>063 - 070 - 078 - 82 All Of Minnesota l101/15/199410100 [ExtreA e No/ E II 1:I0o I II [0 II Ii0 I iI http://www4.ncdc.noaa.gov/cgi-win/wwcgi.dll?wwevent,-storms 8/18/2*008
N)tO: Query Uutput Page 7 of 29 0 83 Southern Mn 04/15/1994 High Wind 0 0 0 0900 kts. 84 MNZO11 - 012- 04/28/1994 0400 Heavy Snow N/A 0 0 0 0 018>021 - 025 - 026 - And Ice 032>038 - 040>096 1. ] [85 Eagang* 05/10/19 2130 [Lightning MN/A 11o 11o 150oK )lo 86 Bloomington 06/10/1994 1205 Hail ]1.75 0 0 00 87 Eagan 07/05/1994 0350 Thunderstorm 65 0 0 500K 0 Winds kts. 88 MNZ020 -021 - 11/27/1994]f0500 ,Heavy N/A 0 0 0 029>098 Snow/ice 89 Lakeville 06/23/1995 1515 Hail 0.75 in. 90 Rosemount 06/23/1995 1520 Hail f1.00 0 f0 f0J in. 91 South And 07/10/1995 1300 Heat Wave N/A 2 0 2.0M Portions Of 92 Eaggan_07/14/1995 180 3 Hail. 1.00 0 0 0 93 Farmington 0"/15/1995 1530 Funnel N/A 0 0 0 _Clouds 94 Burnsville 08/06/1995 1800 Thunderstorm 0kts. 0 0 0 Winds 95 Minneapolis 09/30/1995 1525 Hail [0.75 [0[0 00 96 Eagan I 09/30/199511540 Hail 1.75 0 jfo 0 in. 1I Ii Ii II 11 8/18/2008 http://www4.ncdc.noaa.gov/cgi-win/wwcgi.dll?wwevent-storms
Page 8 of 29 Ir'Lit: yuery uutpu[ 97 Portions Of Central 11/26/1995 1500 Heavy Snow 0 0 0 0 N/A 98 Central And South 00Heavy Snow N/A 0 0 0 0 Mn 99 entral And South 12/08/1995 1400 Low Wind Chilt N/A ]Jfl 0o Mn 100 Central And Glaze 12/[/1995 N[A 0 0 0 0 South MniI E 101 MNZ058>063- 01/10/1996 01:00 PM Heavy Snow N/A0 065>070 - 074>079 - 083>086 NN 102 MNZ060>063 - 01/17/1996 02:00 PM Ice Storm N/A 0O 067>070 - 075>076 - 082>083 103 MNZ041>045 - 01/18/1996 06:00 PM Extreme N/A 0 0 0 0 047>070 - 073>078 - Windchill 082>085 - 091>093 104MvfNZ041>045 - 01/31/1996 04:00AM Extreme Cold N 0 0 0 0 047>070 - 073>079 - 082>088 - 091>096 105 MNZ041>045 - 02/01/1996 12:00 AM Extreme Cold N/A 0 0 0 0 047>070 - 073>079 - 082>088 - 091>096 106 MNZ042>045 - 03/23/1996 09:00 PM Heavy Snow N/A 0 0 0 0 049>054 - 056>070 - 073>079 - 082>087 - 091>093 107 Lakeville 05/19/1996 12 :01 AMITstm Wind 70J0k0 4.5M 0 1 Iff!kts. 108 Fan-nington 05/19/19961 12:15 AM ITstm Wind 55 0 0 25K ii0 http://www4.ncdc.noaa~gov/cgi-win/wwcgi.dll?wwevent-storms .8/18/2008
NCDC: Query Output Page 9 of 29 0 Wind 64 0 0 0 kts. 8/18/2008 http://www4.ncdc.noaa:gov/cgi-win/wwcgi.dll?wwevent-storms
'Page10 of 29 NtO: Query Uutput 082>085- 091>093 11 1I I li 123 NZO65>070 - 111/14/1996 Ice Storm N/ 0 0 I124 073>078 - 082>085 -
091>093 MNZ041>044 - 11/20/1996 02:O00AM Hev nw N/A 10 0 l0 0 047>070 - 074>078-082>085.-091>093 125 M-NZ054 - 11/22/1996 j~9o M Heavy Snow 1N/A 0 0 056>070 - 073>078 - 082>085 - 091>093 126 MNZ049>054 12/14/1996 PM Heavy Snow N/A 0 056>070 - 073>078 - 082>085 - 091>093 127 MNZ041>045 - 12/23/1996 05:00 AM Winter Storm N/A 1 0 0 0 047>070-073>078 - 082>085 - 091>093 128 MNZ041>045,- 12/24/1996 06:00 PM Ex o0 Cotdr0 0C 047>070 - 073>078 - 082>085- 091>093[ 129 MNZ041>045-047>070 - 073>078 - 082>085-091>093 01/15/1997 05:00PM Extreme Windchill fN/A0 0 0 0 130MNZ041>045- 03/13/1997 12:00 AM Winter Storm N/A 0 0 0 0 048>053 - 059>063 - 068>070 - 076>078 - 084>085 - 093 131 MNZ054>056 - 03/15/1997 06:00 AM Flood N/A 0 0 0 0 060 - 064>065 - 067>070 - 073>076 - 083 _ _,_......... 132 MNZ054>056 - 1104/01/19971 12:00 AM Flood IýN/A 11o 0o 0 II0I http://www4.nedc.noaa.gov/cgi-win/wwcgi.dllwwevent-storms 8/18/2008
iwuJ: yuery uutput Page 11 of 29 0 060 - 064>065. - 067>070-073-075>076 - 083 133 MNZ043 - 04/04/1997 Flood N/A 0 0 049>051 - 059>063 - 070 134 MNZ054>056 - 05/01/1997 12:00 AM Flood N/A 0 0 0 0 060 - 064>065.- 067>070 - 073 - 075>076 - 083 135 Farmington 0 6 /0 7 /1 9 9 7 12:17 PM Hail 1.00 0 f00 136 South St Paul 06/28/1997j03:00 PM Tstm Wind J0 0 0 0 Z B37 Apple Vl 07/1 3 /1 9 9 7 07:25 PM Tstm Wind 60 0 0 0 138 Farmington 07/16/1997 10:58 PM fHail 1.75 0 0 0 139 Inver Grove 07/16/1997 11:09 PM Flash Flood N/A 0F0F o00 Heights 140 Inver Grove 07/16/1997j1-1:I5PM Haillo 2.75 0 0 0 Heights -. 1:30 PM Hail
... i. _.
ff0 141 Inver Grove 07/16/1997 Heights .. _ _ _. 142 Eagan 07/1 6 /1 9 9 711:55PM Hail 0.88 0 0 0o in. 143 Fannington 07/17/1997 01:54AM Tstm Wind 61 0 0 0 0 kts. 144 Hatig 07/17/ 1997 020 MTstm Wind 5 8/18/2008 http //www4.ncdc.noaa.gov/cgi-win/wwcgi.dll?wwevent-storms
iNI,.L)L,: yuery uutput Pg 122o2 Page of"29 145 Inver Grove Heights 1107/17/1997 1227A Hail 1.00 0 in. 0 0F 1 0 146 Inver Grove Heights f 07/17/1997H12:39AM l100 a0l in. 0 0 1147 Eag-a o107/22/1997]101:00 AM.][Flash Flood ]N/Aj][0o ] [0I1o 148 Miesville 08/15/1997 PM 149 Burnsville 10/06/19971106:30 AM Hail in,0.75J 0 K 15 NO3- 10/9802:00 PM Ice StOrm N/A 0 0 0 0 150 NINZ063 -01/04/1998Ic Str 069>070 - 076>078 - 083>085 - 091>093 151 Burnsville 03/29/1998llo3:18_PM Haill0 7 5 ]0 0 j 0 1152 Castle Rock 1i03/29/19981106:25_PM liTornado -IFF2 -1o It0IIo io 153 Fannington 03/29/1998 al 154 Hastings 103/29/1998 106:43 PM ,.[Tornado ]FO0 1°o Il611 155 Inver Grove Heights [32/981 998 64 PM Hail Hi fjtioio 156 Burnsville . 5/15/1998103:21 PM Tstmr Wind 0 0 ]0 f 157 Faingto 3 :24PM Tstm Wind 61 U0ti 0 158 Eagan 05/15/19 9 8 PM Hail i.7 0 0 159 Burnsville F65/15/19981103:29 PM,,fHail KOOl°00 0 100.OM II 11 1 http://www4.ncdc.noaa.gov/cgi-win/wwcgi.dll?wwevent-storms *8/18/2008
Page 13 of 29 0 NCDC: Query Output 160 Lakeville 05/15/1998 03 30 PM _Tstm _ Wind 55 0 0, 0 0 kts. 161 Mendota Hgts 05/18/1998 08:30PM Hail 1.00 0 in. 162 Fan-nington 05/28/1998 12:00 AM Haill.00 0j0 0 163 Lakeville 05/28/1998 12:18 AM Hail 0.75 0j0J0 164 Hastings 05/28/1998 12:51 AM Tstm Wind 0 165 Burnsville 05/30/1998 09:49 PM Tstm Wind 80 0 7 140.OM 0 kts. 166 Apple Vly 05/30/19980952P Tstm Wind 65 167 Eagan 05/30/1998 09:52 PM Tstm Wind 75 0 24.OM 0 kts. 168 Farmington IL05/30/1998 09:54 PM TstmWind 70 _ _kts. 169 West St Paul Tst P5/30/1M998 Wind 70 O 0 0 0 kts. 170 Inver Grove 05/30/1998 09:55 PM Tstm Wind Heights Tstm Wind
'kts.
80 171 Lakeville 05/30/1998109:55 PM kts. 05/30/1998]09:55 PM Tstm Wind 70 1 0 172 Rosemount
-____________J [ __ ____ ________ kts. _____
0 173 South St Paul 05/30/1998 0 5PM Wind 70 11 _I _ _kts. I_ II ii II 1 http://www4.ncdc.noaa.gov/cgi-win/wwcgi.dll?wwevent-storms 8W18/2008
Page 14 ot'29 y~uery outpui 0 I,'.J.,: 174 Hastings 05/30/1998 Tstm Wind 70 0 0 0 0 09:57 PM kts. 175 Hastings 05/30/1998110:02 PM Tstm Wind 7 0 0 0 176 South St Paul 06/24/1998 12:36AM Tstm Wind k50 - 0 0 177 Bumsville 06/25/1998 12:12 AM Hail 1.00 in. f 0 j0 178 Farmington 0 6 / 2 6 /1 9 9 8 08:10 PM ITstm Wind 70 kts. J 0 0 0 179 Farmington I[06/26/199808:15 PM Flash Flood 0jo NII1AllI0 o 180 Waterford 06/26/1998]08:20 PM Hail I[00 Z0 I0 0_0 181 Castle Rock 06/26/1998J09:10 PM I Tstm Wind 60 kts. 0[0 - ] 182 Apple Vly 07/14/1998j09:40 PM Tstm Wind 50 [010 0 183 MNZ047>049- 01/01/1999 11:00 AM HeavySnow N/A 0 0 0 0 054>058 - 060 - 064>070 - 073>078 - 082>085 - 091>093 _ 184 M-NZ041 - [03/08/1999 12:30 AM 11Winter Storm N/A 110 0 0 0 041>045 - 045 - 047>050 - 050>052 - 052>053 -053>054 - 054>056 -.056>057 - 057>060 - 060>066 - 066>068- 068>070-070 - 073>074 - 074>076 - 076>078 - 078 - 082>083 - 8/18/2008 lhttp://www4.ncdc.rioaa.gov/cgi-win!wwcgi .dll?wwevent-stomris
Page 15 of 29 NU)L_: Query Uutput 0 083>085 - 091 - 091>092 185 MNZ041>045 - 03/17/1999 11:00AM HighWind 55
- 0 0 047>070 - 073>078 - kts.
082>085- 091>093 186 Eag 06/05/1999 04:00 PM Hail 0.88 0l0j0 0 [187 Inver Grove
. ...
06/05/1999 04:50 PM
...
Hail 1.00j0 in . 0i0I0 188 Rosemount 06/22/1999' 03:25 PM Tstm Wind 55f0 01 0 kts. 189 MNZ041>045 - 07/23/1999 10:00 AM Excessive N/A 1 0 0 0 047>070 - 073>078 - Heat 082>085 - 091>093 190 MNZ041>045 - 07/29/1999 03:00 AM Excessive N/A 0 0 0 047>070 - 073>078 - Heat 082>085 - 091>093 191 Apple Vly 07/30/1999 05:55 PM Tstm Wind 52 0 j o 192 Castle Rock .10812/191 08:33 PM ]Tornado "IjFO l01 010 _o 193 Burnsville 09/ 0 7/1999 06:55 PM Hail 1.0l10I0 0 0 194 MNZ070- 10/01/1999 05:00 PM Early N/A 073>078 - 082>085 Snowfall 051 - 055>063 - 066 - 068>070 - 078 196 MNZ054>070- 01/19/2000 05:30AM Heavy Snow N/A 0 0 0 073>078 - 082>085 - 091>093 I
,8/18/2008 http://www4.nf-dc.noaa.goy/cgi-win/wwcgi.dll?wwevent-stonrns
NCLDC: Query Output Page 16 of 29 if 11 11 11 11
-8/18/2008 http://www4.ncdc.noaa.gov/cgi-win/wwcgi.dll?wwevent-stonns
Page 17 of 29 i'NcI.'ý: yuery uutput 0 11 11
.1 http://www4.ncdc.noaa.gov/cgi-win/wwcgi.dll?wwevent-storms .8/18/2008
Page 18 of 29 iwL-LL: yuery uutput 0 222 Burnsville 10:30 PM Tstm 'Wind 50 0 0 0 106/13/2001 kts. 0 223 Lakeville 106/13/2001 10:30PM Tstrn Wind 52 2[sl:] ________________I ] _________kt I______ s.il ft______ 224 Farmington 0 6 / 13 / 2 0 0 1Lo:35 PM ][Tstr Wind 55kts, 0 1225 Apple Vly 0642001112:30 AMI]Lightng IIN/A IFo 110 25K iIl 226 Burnsville J/18/2001H 0 227 MNZ041>045 - 107/30/2001 09:00 AM Excessive N/A 0 0 0 047>070 - 073>078 - Heat 082>085 - 091>093 228 MNZ04L>045 - 08/01/2001 12:00 AM Excessive N/A 1 0 0 0 047>070 - 073>078 - Heat 082>085 - 091>093 ... 229 MNZ041>045-: 08/04/2001 12:00 PM Excessive W N/A 5 0 0 0 047>070 - 073>078- Heat 082>085 - 091>093 1230 Lakeville 1109/09/2001110: FM]ornado FO][0 ][0loio i 047>070 - 073>078 - 082>085 - 091>093 ,,,_ E 08 :00 AM Winter Storm N/A 0 0 0 0 232 048>070 -073>078-MNZ042>045 I 03/14/2002
"
082>085 - 091 233 Burnsville 104/18/2002 02:12 AM Hail 0.750 0 0 1234 Burnsville 1I {04/18/2002 022AM Hail in. 1.00 Iin. i II II II II I i 8/18/2008 http://www4.ncdC.noaa.gov/cgi-win/wwcgi.dll?wwevent-storms
INI*)*: query 0 uutput SPage 19 of 29 I. ii.
'F http://www4.ncdc.noaa.gov/cgi-win/wwcgi.dll?wwevent-storms 8/18/2008
Page 20of29 0 NCDC: Query Output _____i___________I___ I1 II Ii. I.I L............ JI - I IIi rstn Wind 55 H0 0 0 0 250 Hampton 08/16/2002 10:50 PM I-kts. 1 f251 Apple Vly 07/04/200311 02:12 AM Ihstm Wind 50_ kts. J0 0 0 0 IE! 252 Farriinglton 07/04/2003j02:20 A Tstm Wind 5)6 0 ._0_0 0 kts.I 253 MNZ041>045- 11/22/20036 Winter Storm 0 0 047>070 - 073>076 - 082>083 - 091 ...... 25/4 MNZ053 - 12/09/2003 03:00 AM Winter Storm N/A 0 0 0 0 060>063 - 065>070 - 073>078 - 083>085 - 091>093 [255 MNZO41>045 - 012/ 00 9:00 M Wne tr N/A 0. 0 0 0 047>052 - 054>070 - 2073>078 082>085 -0/
- 2 4 /2 004 :0 PM Winter Storm N 256 MNZ044>045 - 02/01/2004 02:00 AM Winter Storm N/A 0 10 0 0 051>052 - 059>063 -
065>070 - 073>078 - 082>085 - 091>093--- 257 MNZ060 - 03/05/2004 12:00 AM Winter Storm N/A 0 0 0 0 062>063 - 068>070 - 076>078 - 083>085 - 091>093 258 MNZ053 - 04/18/2004 01:00 PM High Wind 52 0 0 0 0 060>063 - 067>070 - kts. 073>078 - 082>085 - 091>093 .... t 259 Lakeville 04/18/20041 07:05 PM ITstm Wind 65 0 II0 110 II0 http://www4.ncdc.noaa.gov/cgi-win/wwcgi.dll?wwevent-ston8ns S/18/2008
*.tJULpUt Page 21 ot 29 '4.-L.-%-.. *y*Ly II kts.
260 Apple Vly 04/18/2004 07:10 PM Tstim Wind 50 Iikts. I 261 Farmington 04/18/2004 071 M Tstm-r Wind 57 k ts. 262 Fanrnington 04/18/2004 12:00 AM Hail 2.00 11 in. 263 Hampton 04/18/2004 12:02 AM Hail 1.75 it in. 264 Lakeville 05/09/2004 06:00 PM Hail 0.75 II in. 265 Apple Vly 05/09/2004 06:01 PM Haill 0.75 II in. 266 Hastings 05/09/2004 06:15t PM Hail 0.75 II in. 267 Eagan ]h 6 /23/2004 03:30 PM Tstm Wind 52 j kts. 268 Northfield 06/23//2004 0406 PM Tstm Wind 50 kts. 269 Bumsville 08/01/2004 09:51 AM Hail 0.75 II In. 270 Apple Vly 08/01/2004 10:00 AM Hail 0.75 II in. 271 MNZ066 - 070- 09/15/2004 1:00 AM Strong Wind 40 078 -_kts. 272 Waterford 10/08/20041[I1:30 AM Lightning II N/A 11 I [273 MNZ041>043 - 12/12/2004 06:00 AM High Wind 40 0 0 0 0 047>051 - 054>059 - kts. http://www4.ncdc.noaa.gov/cgi-win/wwcgi.dll?wweVent-stonrs ..,8/18/2008
Page 22 of 29 iNlLj_ : Query uutput II II IL I' I 8/18/2008 http://www4.nCdc.noaa.gov/cgi-win/wwcgi.dll?wwevent-storms
mNLLu: Query uutput Page 23 of 29 0 Heights Ikts. 1 11 287 West St Paul 06/20/2005 01:02 PM Tstm Wind 50 0 0o0 288 Inver Grove 06/20/2005 01:10 PM Tstm Wind 50 0 0 0 0 Heiht kts.t 289 Apple Vly 06/24/2005 05:27 AM Tstm Wind 50 0 0 0 0 290 Lakeville 06/24/2005105:30 AM Tstm Wind 55j0_0 0 0 291 Farmington 06/24/2005 05:40 AM Tf Wind 61 0 i 1[00K 0 kts. 292 Hastings 06/24/2005 05:52 AM Hail 1.0 0 0 1.OM 0 06/24/2005 05:52 AM Tstm Wind 52 0 0 0 293 Hastings 294 Burnsville 06/27/2005 06:40 PM !Hail 0.75 in. j Jf 0 295 Eagan 06/29/2005f 09:00 PM Hail 1.00 in. 0 t0 0 0 296 Mendota Hgts 06/29/2005 09:00 PM Hail 1.00 fin. 0 j 0_0 297 Burnsville 06/29/2005 09:04 PM Hail 0.88 0 t010 0 1298 Farmington 1107/17/2005li07:45 PM j[Lightning ]IN/AiI0ii0i1,75K I-0] 299 West St Paul 08/04/2005112:00 AM Tstm Wind 52 0 0 0 kcts. l 300inver Grove 08/08/2005 03:30 AM Hail 0.75 Heights
'0Eli
_.
. [I 1in.I III Jl II il Il 8/18/2008 http://www4.ncdc.noaa.gov/cgi-win/wwcgi.dll?wwevent-storms
NCVC: Query Output Page 24 of 29 0 0 50 0 0 0 301 Mendota Hgts 08/08/2005 05:00 AM 1[0 ITstln Wind kts. 302 Farmington 08/09/2005 02:30 PM Tstm Wind 50 0 0 0 nts. 303 Miesville 08/09/2005 02:48 PM Tstm Wind 52 0 0 0 0 kts'. [304,West St Paul ,I09/04/20051 06:00 AM ][Heavy Rain ,N/A 1]0 LI[0 ____ 305 Eagan 0 9 /12/ 2005 09:55 PM Tstm Wind 52 0 0 0 0 kts. [306 Burnsville 09/12/2005 10:03 PM Hail 0.75 in. 0 i0 0t0 [307 Eagan [09/12/2005 10:45 PM Tstm Wind 52K 01010t0 308 Lakeville 09/12/20051111:00 PM Haill50101010 309 West St Paul 09/21/2005 06:55 PM Tstm Wind 50. 0f[ 0_ 0 0 kts. 310 Burnsville 09/21/2005lf0:35 PM Haill.88 0 0 0 [311 Burnsville ,]10/04/2005 06:O3 AM ] Light ning ]N/AIFT 0 1[0 FTO [312 Burnsville Ij I0/04/2005'06:15AM[Lightning ]IN/AF -I0 01
]FT 313 Countywide ]1o1/04/2005o0J 0 M Flash Flood ]F'! oJ1O0l0 II0 1314 hLZ070 1110/04/20051[M Flood ][N/A Io[io 11o __]o 315 MNZ049>050- 12/13/2005 08:00 PM Heavy Snow N/A 0 0 0 0 052>053 - 059 - 063 -
066>070 - 076 - 078 - 083 - 085 - 092>093 II J J I J IJ~ 316 MNZ051>054 - 03/12/2006 ) 12:00 PM Winter Storm I N/AI 0 r I0 o II°0 8/18/2008 http://www4.ncdc.noaa.gov/cgi-win/wwcgi.dll?wwevent-ston-ns
NUJL.-: yuery uutput rage 2- ot 2v 0 056>070 - 073>078 - 082>085 - 091>093 317 MNZ051 - 03/15/2006 08:00 PM WitrStormi N/A 0 0 0 01 059>063 -_068>070 - 078 318 Apple Vly 04/18/2006 07:22 PM Haill75 0 0 0 1.00 0 0 319 Lakeville 0 II 06/24/2006 03:34PM Hail in. 320 Fanmington J 06/24/2006 03:40 PM Tstm Wind [ 0 01 0 0 321 St Paul Arpt 7/204:43
~kts.
PM Tstm Wind 54 j _ ] 0_0
]5411_1H01 322 South St Paul 323 Farmington 324 MNZO41>045 -
047>070 - 073>078-07/24/2006 n1 1 044PM _H07/24/2006105:00PM Tstmi Wind Lightning AM3/20 Heat kts. N/A I IF]0 oo Fo [0 F 082.>085 - 091 >09.3IN 1325 Lakeville j108/02/20061 02:00 AM j(Lightning j(N/A OF] 00K 326 Lakeville 1108/24/2006 09:30 AM Haill0 0 0 0 [327' "Northfield {08/24/2006 It 09:*34 AM JHail n.1.250 in. 010 101 328 Lakeville 108/24/2006 10:33 AM fHail 750 0 0 0 V108/24/2006 329 AppleVly 10:40 AM Hail11.200 0 0 10.0M 10 11 II 11 II 1 8/18/2008, http://www4.ncdc.noaa.gov/cgi-win/wwcgi.dll?wwevent-storms
Page 26 of 29 I yucfy LUtpUL 330 Eagan 10/03/2006 21:05 PM Hail 0.88 OK- OK 0 0 in. J__ II : ______l1_____L 331 Inver Grove ______1_______II 10/03/2006 21:15 PM Hail0.75 OK Heights in. 32 Inver Grove . 10/03/2006f2122 PM Hail i.7 0 0 OK Heightsin 333 Lakeville 10/03/200 6 PM ail H22:16 JK7 j 0JOK 334 Lakeville l0/03/2006 22:20 PM Hail 1.25J0J0jOK in. N'1ZOO
-~ lo/14/2007li160 P Heavy Snow N/-]lFlLIo K )
336 MNZ060- 068 - 02/23/2007[22:00 PM Winter Storm N iA 70OO 070 337 MNZ041>045 - 03/01/2007 00:00 AM Winter Storm N/A 0 0 OK OK 047>070 - 073>078 - 082>085 - 091 1338 Hampton. 11oF03/2 oo015:23 PM [lFunnel Cloud JN/A Iio 10iIIoi ok 339 MNZO60>062 - 05/06/2007 09:30 AM High Wind 50 0 0 OKO 070 - 077 _ _kts. 340 West St Paul 06/02/2007 13:33 PM Hail .75 1 0 0N K 341 Eagan 06/02/2007 15:10PM Hail 0.75 in.E t 0 OKO IOK l 342 West St Paul *06/02/2007 15:26 PM Hail 0 10K OK88 343 West St Paul 06/02/2007 15:30 PM Thunderstorm 52 0 H OK Wind kts. 344 Lakeville 02:00 AM Hail II1.00 0 OK OK 1 06/07/20071 0o
INULL'L: yuery 0Liutput 1ae/o~ Page 21 ot 29
- 8/18/2008 h4ttp://www4.ncdc.noaa:.gov/cgi-win/wwcgi.dll?wwjevenit--storms8//20
i**J: tyuery uutput Page 28 ot-29 0 .http://www4.ncdc,.noaa.gov/cgi-win/wwcgi.dll?wwevent-storms 8/18/2008
YUCLY %JULIJUL rage /-y o1 z' 0 Ad Top of Page N'
*8/18/2008 http://www4.ncdc&noaa.gov/cgi-win/wwcgi.dll?wwevent-storn-s
10 NCDC: Query Output Page I of 26 0 InfQrmation ServiceService V x%(NESDIS) Data Center Ctimatic National Aý,coInelce National Environmentaland NOAA Sateltite, Satellite, Data, and Information U4 ".artiamt DOC >NOAA >NESDIS >NCDC Search IN-C Query Results 280 event(s) were reported in Goodhue County, Minnesota Mag: Magnitude between 01/01/1950 and 05/31/2008 (High Wind limited to Dth: Deaths speed greater than 0 knots). Inj: Injuries PrD: Property Damage Click on Location or County to display Details. CrD: Crop Damage Minnesota Location or Date Time Type Mag Dth Inj PrD CrD CountyDaeTp 1 GOODHUE 08/08/1963 2315
~in.
Hail 2.50 0 i0 0 2GOODHUE 17/16/1967] 1 [Tornado ][KI*01°1[0K ]Io 3 GOODHUE, 05/15/1968 1530 Tstm Wind J 1 0l 4 GOODHUE j[06/13/1968 2100 Tstm Wind 0 kts. [ 0 j 5GOODHUE 09/08/1968 0333 Hail 1.75 0 0 0 6 GOODHUE ____ _______________ 07/13/1969 0740 ____ ___ ____II___ ___ _ __ ____I ___ __ ____ Tstmn Wind _ ____ ___I_______ ___ ftt. [E
.
..~II______
l52 ___ ___ _kts._ _il____ http://www4.ncdc..noaa.gov/cgi-win/wwcgi.dll?wwevent-storms .8/18/2008
0 NCDC: Query Output 0 Pe2 of 26 11Tornado 17GOODHUE 07/15/1969 112100 ___________ I___________ I IFI 110 110 125K ____________I___ 1 0 8GOODHUE 09/21/1970 0245 Tstm Wind [ 0 0o 00 9GOODHUE ]06/07/19711330 Tornado -IF0J0 ] oK to lOGOODHUE 06/0/1971F2315 Hail 100 0 0 0 11GOODHUE 1 07/ 01/ 1973 2210 Tstm Wind 0 0 0 12 GOODHUE 08/21/1975[0600 Tstm Wind kts. 13 GOODHUE 05/15/1977 1430 Tstm Wind" 61 0 0 0 kts. 14 GOODHUE 07/15/1978 2000 Hail I1710 110 0 15 GOODHUE 07/12/1979 1439 Hail 0 0 ] 01.75 It 16 GOODHUE 07/12/1979 1439 Tstm Wind 52 0 0[0 17 GOODHUE 07/11/198012315 Hail 1.00j0j0j0 0 IEE 18 GOODHUE [07/1/1980j2330 Tstm Wind 0 0I 0I0 0
~kts.
19 GOODHUE 07/15/198011935 Tstm Wind 0 110 20 GOODHUE 07/15/1980 1935 Tstm Wind 52 0 ]00 0 21 GOODHUE 07/24/198111715[Tstm I Wind
. 0kts. 010 0 I1 II http://www4.ncdc.noaa.gov/cgi-win/wwcgi.dll?wwevent-storms 8/18/2008
0 NCDC: Query Output 0 Page 3 of 26 22 GOODHUE 07/19/1983 1605 Tstm Wind 0 0 0 0 0 kts. 23 GOODHUE Tstm Wind 00 0 08 /15/1 9 8 3J1 6 00 Hail 1.75 0 0 0 24 GOODHUE. 25 GOODHUE 08/15/1983 1600 Tstm Wind 68 0_0_0 26 GOODHUE 04/26/1984 [2100 Tstm Wind 0 kts. [27 GOODHUE 06/07/1984 1935 [[Tornado j[ 1o IiooII-o 25o [28 GOODHUE 06/17/1984 1800 IlTomado I1° IFoI[I° _I1°_o 29 GOODHUE 06/26/1984 1506 Tstm Wind 0 0 0 _0_0 30 GOODHUE 05/30/1985 1625 Hail ].50 ] 0_0_-_0 31 GOODHUE j05/30/1985 1625 Tstm Wind 0 0 o00 k ts.E[ 32 GOODHUE 07/15/1986 1100 Tstm Wind ] ] 0_0_0 33 GOODHUE 08/17/1986 0130 Tstm Wind W 0 0 _0 0 i34GOODHUE ]1os/o/198i 164o jomado ']Klo iI7I°oK o 35 GOODHUE 06/28/1987]1800 Tstm Wind 0o _kts. [E_0_0_0 [ [ 36 GOODHUE. 1107/27/198711140 1Tomado JF3 1[1110 1 M 0 37 GOODHUE 07/27/1987=1530 Tstm Wind 0 0 0 kIts. http://www4.ncdc.noaa.gov/cgi-win/wwcgi.dll?wwevent-storms 8/18/2008
0 NCDC: Query OutputP4 0 Pae4 of 26 38 GOODHUE 05/07/1988 1800 Tstm Wind 52 0 0 0 0 kts. 39 GOODHUE 05/07/1988]1800 Tstm Wind 52 0 [ 0 0 40 GOODHUE 06/14/198811815 Tstm Wind 0 00 41GOODHUE 0 8 /03/1 9 88 1830 !1.75]0 [00 0ail 42 GOODHUE 05/23/1989[1725 Hail 2.75 0 0 in. 43 GOODHUE 05/23/1989 1740 Hail 1.00 0 0 0 in.FI 44GOODHUE [06n02/9901[0 ][orado IFF II0[0 K 3[o 45 GOODHUE 06/12/1990 1725 Tstm Wind 0 0 0 0_0 1 E ~kts.E[ 46 GOODHUE 06/12/1990 1750 Hall 1.75J0 ]0 0_0 ffTI ~in.E:F 47 GOODHUE 05/28/1991 0925 Hail I.75JLJ0 0_0 [48 GOODHUE 05/28/199110938 E,f~nkts. Tstm Wind 0 ]0J( 0 0 [49 GOODHUE 06/14/1992]1856 Hail 0.90[0[0]0 0 in. 150 GOODHUE 07/02/1992 030 Tstm Wind 0 000
!fnts L'E:E 51 GOODHUE 07/02/1992 0345 Tstm Wind 0 0 0 0 0 kts.
F52 GOODHUE 09/04/1992 0725 Hail 0.88 0 0 0 0 http://www4.ncdc.noaa.gov/cgi-win/wwcgi.dll?wwevent-storms 8/18/2008
NCDC: Query Output Page 5 of 26 0 s in. 1"H 53 MNZ003 - 012 01/05/1994 1100 Heavy Snow N/A 0 0 0 0
- 019>021 - 027 -
038 - 041>045 - 050>053 - 061>063 - 070 - 078 - Extreme Cold 54 All Of Minnesota II. 01/15/1994 0100 F[ 55 Southern Mn 04/15/1994] 0900 High Wind I 0 0J 0 0 56MNZ011-012 04/28/1994 0400 HeavySnow N/A 0 0 0 0
- 018>021 - 025 - And Ice 026 - 032>038 -
040>096 57 GOODHUE 07/06/1994][0100 ][Flash Flood j[N/A 01 0 JI0 58 MNZ075>079 11/18/1994 0700 High Wind 52 0 0 0 0
- 083>088 - kts.
092>096 59 MNZ020- 021 11/27/1994 0500 Heavy N/A 0 010 _ 0
- 029>098 Snow/ice 60 Kenyon 06/22/1995 1400 Thunderstorm 0 0 0 0 0 Winds/heavy kts.
Rain 61 South And 07/10/1995 1300 Heat Wave N/A 2 0 2.0M Portions Of l/A [ [ 11/ 2 6 /1 9 9 5 Heavy Snow 0 62 Poraions Of 500 0 Central M E 12/08/1995 0300 Heavy Snow N[/A 51[0i0 0 63 Central And South Mn u r wI -.. Ir Ir' http://www4.ncdc.noaa.gov/cgi-win/wwcgi.dll?wwevent-storms 8/18/2008
NCDC: Query Output Page 6 of 26 0 64 Central And 12/08/1995 II1400 Low Wind N/A 0 0 0 0 South Mn Chill 65 Central And 12/13/1995 0200 Glaze 10 South Mn _ __ _ _ 66 MNZ058>063 01/10/1996 01:OOPM HeavySnow N/A 0 0 0 0
- 065>070 -
074>079 - 083>086 67 MNZ077>078 01/17/1996 02:00 PM Heavy Snow N/A 0 0 0 0
- 084>088 -
003>096 68 MNZ041>045 01/18/1996 06:00 PM Extreme N/A 0 0 0 0
- 047>070 - Windchill 073>078 -
082>085 - 09M 1>093 69 MNZ074>079 01/25/1996 02:00 AM Heavy Snow N/A 0 0 0
- 08.2>088 -
091>096N 70 MNZ041 - 01/28/1996 11:00 PM Blizzard N/A 0 0 0 0 047>048 - 054>057 - 064>065 - 073>078 - 082>088 - 091>096 71 MNZ041>045 01/31/1996 04:00 AM Extreme Cold N/A 0 0 0 0
- 047>070 -
073>079 - 082>088 - 091>096 _ _ _ __ _ _ _ _ I IL 1 Extreme Cold 1iN/A 0 0 0 0 72 MNZo41>045 1102/01/1996I 12:00 AM http://www4.ncdc.noaa.gov/cgi-win/wwcgi.dll?wwevent~-storms8//20 8/18/2008
Page 7 of 26 NCDC: Query Output 0 0
- 047>070 -
073>079 - 082>088 - 091>096 73 MNZ041 - 02/10/1996 09:00 AM High Wind 48 0 0 0 0 047>048 - kts. 054>057 - 064 - 067 - 074>079 - 082>088 - 091>096 7 4 MNZ042>045 03/23/1996 09:00 PM Heavy Snow N/A 0 0 0 0
- 049>054 -
056>070 - 073>079 - 082>087 - 09 1>093 75 Zumbrota 05/19/1996 0l:15_AMjTstm Wind 65_ 0 10 00 76 Pine Island 05/19/1996 01:20 AM Tstm Wind 65 0 kts-. 77 Welch 05/19/1996 12:45 AM Tstm Wind 0 0 78 Red Wing 06/29/1996 01:35 PM Tstm Wind 60 0 79 Cannon Falls 08/25/1996 07:25 PM Hail 0.75 J 80 MNZ041>045 10/29/1996 09:00 PM High Wind 64 0 0 0 0
- 047>070 - kts.
073>078 - 082>085 - 091>093 http://www4.ncdc.noaa.gov/cgi-win/wwcgi.dll?wwevent-storms 8/18/2008
NC : Query Output Pa 8 of 26 W 81 MNZ065>070 11/14/1996 10:00 PM Ice Storm N/A 0 0 0 0
- 073>078 -
082>085 - 09 1>093 82 MNZ041>044 11/20/1996 02:00 AM Heavy Snow N/A 0 0 0 0
- 047>070 -
074>078 - 082>085 - 09 1>093 83 MNZ054 - 11/22/1996 09:00 PM Heavy Snow N/A 0 0 0 0 056>070 - 073>078 - 082>085 - 091>093 84 MNZ049>054 12/14/1996 01:00 PM Heavy Snow N/A 0 0 0 0
- 056>070 -
073>078 - 082>085 - 091>093 85 MNZ041>045 12/23/1996 05:00 AM Winter Storm N/A 1 0 0 0
- 047>070 -
073>078 - 082>085 - 09 1>093 86 MNZ041>045 12/24/1996 06:00 PM Extreme Cold N/A 0 0 0 0
- 047>070 -
073>078 - 082>085 - 091>093 87 MNZ041>045 01/15/1997 05:00 PM Extreme N/A 0 0 0 0
- 047>070 - Windchill 073>078 -
082>085 - http-://www4.ncdc.noaa.gov/cgi-win/wwcgi.dll?wwevent--storms8//20 8/18/2008
0 NCDC: Query Output 6 9 of 26 eP 091>093 Ii _ iI I1 1 I 0 88 MNZ041>045 03/13/1997 12:00 AM Winter Storm N/A 0 0 0
- 048>053 -
059>063 - 068>070 - 076>078 - 084>085 - 093 89 Red Wing 06/05/1997111:45 AM al 0.75 0 0 0 90 Cannon Falls 06/28/1997 04:00 PM Tstm Wind 50 0 0 91 Vasa 07/01/199708:55 jMHail 1i.75 0 iEn. 92 Red Wing 0 7 /01/ 19 9 7 .0 9 :15 PM Hail 1I.75 0 0 93 Red Wing 07/13/1997 08:25 PM Tstm Wind 55 0 kts. 94 Cannon Falls 07/17/1997 02:15 AM Tstm Wind 55j0 0_0_0 kts. 95 Zumbrota 07/17/1997 02:30 AM Tstm Wind 55 ] [70 96 Red Wing 6(o7/22/199710AM Flash Flood I[N/ ioZ11o 1o0 97 Zumbrota IF07/25/19971 03:00 AMI Flash Flood [N7/ NAo 0 [IFI0 ]0 1oj [o 110-98 Wanamingo ][o8/14/1997 [o63oIJ Tornado _99 Goodhue 99Gohe
][08/14/1997 06:40 PM ir ____ ____
Tornado _______
][FO ][][7[ _ __o __oEio_
___'__ 100 MNZ063 - 01/04/1998 02:00 PM Ice Storm N/A 0 0 0 0 069>070 - 076>078 - 083>085 - http://www4.ncdc.noaa.gov/cgi-win/wwcgi.dll?wwevent-storms 8/18/2008
0 NCDC: Query Output P610 of 26 091>093 11 101 Stanton 116o/15/1998108:45 PM N FN Ijojjo Jo 102 White Rock 05/15/1998]08:55 PM Tstm Wind 55s. . 0 103 Goodhue 05/18/1998108:50 PM Tstm Wind _ 0 0 104 Cannon Falls 05/18/1998108:55 PM Tstm Wind 55 0 0 105 Goodhue 05/18/1998 08:55 PM Tstm Wind 5 0 0 106 Kenyon 05/28/1998 0:21_AMlTstm Wind 55 0- 0 0
~kts.
107 Cannon Falls 05/30/1998 10:00 PM Tstmn Wind 60 0 1 I kts. 108 Zumbrota 05/30/1998 10:15 PM Tstm Wind 55 0 F1 0 9 Cannon Falls [06/25/1998 12:28 AM Tstm Wind 65 0 10 0_0 110 Red Wing 06/25/1998112:28 AM Tstm Wind 7t 0 0 0 111 Vasa 06/25/199812:28 AM Tstm Wind 6 0 0 ] 112 Red Wing 06/25/199812:45AM Tstm Wind ks 0_-_0_0 113 Kenyon 98 PM Tstm Wind 55 [1 to0 kts. 114 Zumrbrota 06/26/1998 Hail H09:00PM 1.75__00__ 0 iln. __ __ __ _ _ 1A II 11 11 http://www4.nCdc.noaa.gov/cgi-win/wwcgi.dll?wwevent-storms 8/18/2008
NCDC: Query Output P*I I of 26 1115 Cannon Falls 106/26/1998109:15 PM I1 Flash Flood IN/A 112 1 1.5M 0 116 Goodhue 06/26/1998 10:45 PM Hail 0 in. [117 MlNZ078 -06/27/1998][ 03:00_AM Flood JN]FN/A [o 10o [118 Cannon Falls ,1'06/27/19981[06:05PM Tornado Fo_[ 07 F]Jo __o 119 Kenyon o6/27/l998][06:5PM ITornado IFO_][o o 0 10 120 Wanamingo Jo16/27/9981o6:o8_PM Tormado ][Fo0_][0 Io Joo 121 Zumbrota 106/27/19981 1PM
][Tomado [FO JI0[jI0 ][o 122 01/01/1999 11:00AM Heavy Snow- N/A 0 0 0 0 MNZ047>049 -
054>058 - 060 - 064>070 - 073>078 - 082>085 - 091>093 123 - 01/22/1999j 01:00 AM Winter Storm N/A 0 0 0 MNZ077>078 - 084>085 - 093 124 NNZ041 - 03/08/1999 12:30 AM Winter Stom N/A 0 0 0 0 041>045 - 045 - 047>050 - 050>052 - 052>053 - 053>054 - 054>056,- 056>057 - 057>060 - 060>066 - 066>068 - 068>070 - 070 - 073>074 - http://www4.nede.noaa.gov/cgi-win/wwcgi.dll?wwevent--storrns8//20 8/18/2008
NCDC: Query Output Pagel2 of 26 074>076 - 076>078 - 078 - 082>083 - 083>085 - 091 - 091>092 125 03117/1999 11:00AM HighWind 55 0 0 0 0 MNZ041>045 - kts. 047>070 - 073>078 - 082>085 - 091>093 126 Pine Is 0 6 /05/1 9 9 9 i 0 8 :3 0 PM Tstrn Wind 5 [ 0 127 Goodhue 06/06/1999 PM Tstm Wind 5 0 0 9 0 6 /0 6 /1 9 9 105: 2 0 PM Tstm Wind 50 0 0 128 Red Wing 129 Roscoe 07/08/1999f04:40 PM Hail 0.75 0 0 0 0 lin. 130 07/23/1999 10:00 AM Excessive N/A 1 0 0 0 MNZ041>045 - Heat 047>070 - 073>078 - 082>085 - 091>093 HH 131 07/29/1999 03:00 AM Excessive N/A 0 0 0 0 MNZ041>045 - Heat 047>070 - 073>078 - 082>085 - 091>093 "- I 132 Cannon Falls I0/30/1999 0:0 IF FOPm Tstm Wind j52]o0 F f70 lo http://www4.ncdc.noaa.gov/cgi-win/wwcgi.dll?wwevent-storms 8/18/2008
NCDC: Query Output P 13 of 26 II I _]Ikts. IHL ] 133 Welch o8/09/1999 o6:08 PM Tornado I FOIKoo 1134 Kenyon 08/09/1999I106:45PM FunnelCloud N/a 1350MNZ070 - 10/01/1999 05:00 PM Early N/A 0 0 0 0 073>078 - Snowfall j 082>085 136 01/12/2000 05:30 AM Heavy Snow N/A 0 0 00 MNZ047>049 - 051 - 055>063 - 066 - 068>070 - 1078 137 01/19/2000 05:30 AM Heavy Snow N/A 0 0 0 0 MNZ054>070 - 073>078 - 082>085 - 091>093 138 MNZ041 - 04/05/2000 09:00 PM High Wind 64 0 0 0 0 047>049 - kts. 054>060 - 062>070-073>078 - 082>085 - 091>093 139 Pine Is 06/10/2000 02:50 PM Haill75f0j070 0 140 Red Wing 07/07/2000 11:15AM Hail 0.75 in. 1H0 7 1 141 Red Wing 07/07/2000 11:20 AM Tstm Wind 5 0 0 142 Frontenac 08/01/2000 02:20 PM Tstm Wind 50 kts. 0 7 http://www4.ncdc.noaa.gov/cgi-win/wwcgi.dll?wwevent-storms 8/18/2008
NCDC: Query Output Pa e 6 14 of 26 143 12/28/2000 02:00 AM 11Winter Stomi N/A 0 0 0 0 MNZ041>045 - 047>053 - 055>063 - 065>070 - 076>078 - 084>085 - 093 144 01/29/2001 07:00 PM Winter Storm N/A 0 0 0 0 MNZ041>045 - 047>070 - 073>078 - 082>085 - 091>093 _ __ 145 MNZ054 - 02/07/2001 06:00 AM Heavy Snow N/A 0 0 0 0 056-060-064>070 - 073>078 146 03/11/2001 11:00PM Heavy Snow N/A 0 0 0 0 MNZ048>049 - 054>070 - 075>078 - 083 - 085 - 093 _ __ ___ _ _ 14 7 03/30/2001 12:00 AM Fog N/A 0 0 0 0 MNZ041>045 - 047>070 - 073>078 - 082>085 - 1091>093L U-L - 148 04/01/2001 12:00 PM Flood N/A 3 I 200.OM 0 MNZ041>045 - 047>070 - 073>078 - 082>085 - http://www4.nedc.noaa.gov/cgi-win/w*wcgi.dll?wwevent-storms8//20 8/18/2008
NCDC: Query Output Pa615 of 26 0 091>093 II. 149 MNZ063 - 04/07/2001 08:00 AM High Wind 69 0 0 8.OM 0 067 - 069>070 - kts. 073>078 - 082>085 - 0 9 1>0 9 3 150 05/01/2001 12:00AM Flood N/A 0 0 0 0 MNZ054>056 - 059>060 - 062>070 - 073>076 - 078 - 083 15i Stanton ]05/09/2001 07:13 PM Tornado F2iI[I][4.0M F2 10 110 152 CannonFalls /09/2001 Tstm Wind 165 2 0 153 Goodhue 05/09/2001 07:40 PM Hail 1.75 0l0O 0 154 Red Wing 05/09/2001 07:46 PM Tstmn Wind 60 0 0 0 155 Frontenac 05/09/2001 08:23 PM Hail 0.7 0 0 0 0 156 Red Wing 06/11/2001 03:45PM I]Funnel'Cloud ][N/Ao0 1°1°7o ][° 157 Goodhue 06/11/2001 05:45 PM Hail ]17 5 07 70 0_0 158 Red Wing 06/11/200106:00 PM Tstmn Wind 5JL0 i0 0 06 /1 7 / 2 0010 6 :2O PM Hail 50-f0 f0J0 0 159 Dennison. 1 160 Frontenac 06/17/2001 08:05 PM Hail 1.50 1 0]0j0 0
- ]in.
http://www4.ncdc.noaa.gov/cgi-win/wwcgi.dll?wwevent-storms 8/18/2008
NCDC: Query Output Pa e 0 6 16 of 26 161 07/30/2001 09:00 AM Excessive N/A 0 0 0 0 MNZ041>045 - Heat 047>070 - 073>078 - 082>085 - 091>093 __"]I____ 162 08/01/2001 12:00 AM Excessive N/A 1 0 0 0 MNZ041>045 - Heat 047>070 - 073>078 - 082>085 - 091>093 163 08/04/2001 12:00 PM Excessive N/A 5 0 0 0 MNZ041>045 - Heat 047>070 - 073>078 - 082>085 - 091>093 164 MNZ078 - 01/31/2002 12:00 PM Winter Storm N/A 0. 0 085 - 091>093I . fE l 165 MNZ078 - 02/01/2002 AM Winter Stom N/A 0 0 085 - 091>093 166 03/08/2002 06:00 PM Winter Storm N/A 0 0 0 0 MNZ041>045 - 047>070 - 073>078 - 082>085 - 091>093 HHL 167 03/14/2002 08:00 AM Winter Stonn N/A 0 0 0 0 MNZ042>045 - 048>070 - 073>078 - 082>085 - 091 ______ 11 II If http://www4.ncdc.noaa.gov/cgi-win/wwcgi.dll?wwevent-storms 8/18/2008
NC: Query Output Pol17 of 26 H 168 Stanton 05/08/2002 03:10 PM 1.00 0 0 0 in. 0 169 Wanamingo 05/08/2002 04:13 PM Hail ].75j0 0 0 0 170 Goodhue 05/08/2002 04:30 PM Hail 2.5] 0 ]0 0 171 Goodhue 05/08/2002j04:58 PM Hail 1.75]0 f [ 0 172 West Portion 106/21/20021106:30 AM Flash Flood 1liN/a N/A 0 I [200K 173 Southeast 06/21/2002 10:45 AM Flash Flood [N/A 0]0]200K 0 Portion (174 vNZ078 I(o6/21/2002][12:00 PM](Flood (N/AI][I100 (0 175 Stanton 07/28/2002 04:17 PM Hail - 1.00o0l0or 0l0 in. 176 Cannon Falls 07/28/2002 04:50 PM Hail 1.00 0 I0 0 0 177 Red Wing 07/28/2002 05:45 PM Hail 1.00 0 0 178 Kenyon 07/28/2002 06:00 PM Tstm Wind 0 0 0 179 Zumbrota 07/28/2002 06:15 PM Tstm Wind ' 5 0 180 Pine Is 07/28/2002 06:16 PM Tstm Wind ]2 0 010 0 181 Pine Is 07/30/2002 04:10 PM Tstm Wind 52 0 0 0o 8i ts. Tstm Wind 1M 52 0 0 00 182 Kenyon 08/16/2002105 Skts.ts ir ii - ii I http://www4.ncdc.noaa.gov/cgi-win/wwcgi.dll?wwevent-storms 8/18/2008
NCDC: Query Output P6 18 of 26 183 Welch 08/16/2002 10:55 PM Tstm Wind 52 0 0 0 0 kts. 184 MNZ053 - 12/09/2003 03:00 AM Winter Storm N/A 0 0 0 0 060>063 - 065>070 - 073>078 - 083>085 - 091>093 185 01/24/2004 09:00 PM Winter Storm N/A 0 0 0 0 MNZ041>045 - 047>052 - 054>070 - 073>078 - 082>085 - 091>093 18 6 02/01/2004 02:00 AM Winter Storm N/A 0 0 0 0 MNZ044>045 - 051>052 - 059>063 - 065>070 - 073>078 - 082>085 - 091>093 1 187 MNZ060 - 03/05/2004 12:00 AM Winter Storm N/A 0 0 0 0 062>063 - 068>070 - 076>078 - 083>085 - 091>093 188 MNZ053 - 04/18/2004 101:00 PM High Wind 52 0 0 0 0 060>063 - kts. 067>070 - 073>078 - http://www4.ncdc.noaa.gov/cgi-win/wwcgi.dll?wwevent-storms 8/18/2008
NC : Query Output P6 19 of 26 082>085 - 091>093 189 Cannon Falls 04/1-8/2004112:03AM Hail 1.00 0 0 0 0 190 Red Wing 0 4 /1 8 / 2 0041 2 :3 0AM Hail 0.75 0 0 0 191 Zumbrota 05/09/2004 08:45 PM Hail o0 0 075f0 192 Zumbrota 05/09/200 4Hail 08:57 PM 0.75 in. 0 0 0 [193 Goodhue o[o/0oo4 06:0 M Funnel Cloud [Na I[07i0 ][oIE0 194 Zumbrota [05/30/2004 06:28_PMIfTornado .IIFoIIo [o ][oIIo 195 Cannon Falls 06/23/2004 04:04 PM Tstm Wind 55 010110K 0 F 196 Dennison 06/23/2004 04:05 PM 06/23/2004 04:10 PM Tstmn Wind Tstm Wind 52j0j0 59 0fo 0 0 197 Red Wing 198 Cannon Falls 06/23/2004 PM Tstimi Wind 54.
~06/23/200Jf 04:13
________________ kts. _________ 199 Zumbrota 07/21/20 :20 AM T Wind 52 0 0r 200 Welch 08/25/2004 05:34PM Hail 1.00 0 0 201 MNZ078 - 09/14/2004 11:45 PM Flood N/A 0 0 6.7M 21.6M 084>085 - 091>093 _ 202 MNZ066 - 11:00 AM Strong Wind 40 0 0 IK 0 09/15/2004 http://www4.ncdc.noaa.gov/cgi-win/wwcgi.dll?wwevent-storms .8/18/2008
0 NCDC: Query Output P 20 of 26 070-078 I I Ikts. 203 Stanton 10/ 2 9 /2 0 0 4105:1 9 PM Tstm Wind 55 0 0 0 0 204 Cannon Falls 10/29/2004j05:34 PM Hail 1.00 [ 0 0 205 12/12/2004 06:00 AM High Wind 40 0 0 0 0 MNZ041 >043 - kts. 047>051 - 054>059 - 064>070 - 073>078 - 082>085 - 091>093 206 01/01/2005 10:00AM Winter Stonn N/A 0 0 0 0 MNZ044>045 - 049>070 - 073>078 - 082>085 - 09 1>093 207 01/21/2005 10:00 AM Winter Stonn N/A 0 0 0 0 MNZ042>045 - 049>053 - 059>063 - 068>070 - 078 208 MNZ070 - 0 2 / 19/2 0 0 5 Winter Storm 077>078 - 085 0tA 209 MNZ060 - 03/18/2005 12:00 AM Winter Storm N/A 0 0 0 0 062>063 - 065>070 - 073>078 - 082>085 - 091>093 .. ..... H I II i1 71 F~II 11 - http://www4.ncdc.noaa.gov/cgi-win/wwcgi.dll?wwevent-storms 8/18/2008
NCDC: Query Output P e21 of 26 210 Zumbrota 03/30/2005 02:40 PM Hail 1.75 0 Ifl. 0 0I 0 1211 Zumbrota o103/30/2005][o3:15PM J[Funnel Cloud FN/A] [Io to Fo 212 Frontenac 03/30/2005 Haill 1[10 1213 MNZ078 [03/30/2005][05:00 PM ][Flood . [N/AF J[0][0o ][o 214 Cannon Falls 06/07/2005 -lail HPM ].5(s 1Y0 0 0 215 Red Wing j106/07/2005105:07PM I[Tstm Wind 5 0 0 0 11 216 Hader 6/7/20 05:51 PM Hail 1.00 0 0 0 0 I[o6,o7/200oo :ooP IFlash Flood ][ J l]I*00*l [ 1217 Countywide
~218 Wanamingo If0/720510:5P HaillI1oIo~Io____
219 Kenyon 106/o 2oo IIo :oo PM Hail I[ iIiot 0 j 220 Kenyo no: 06/07/2005 M Tst.m Wind 56 Iti0kts.00 221 MNZ078 1106/07/200511:15PM Flood N/A ][0 [0][545K 10] 222 Sogn 06/11/2005 11:50AM TstmiWind 55 223 Cannon Falls 06/29/2005]09:35PM Tstm Wind 0 052 224 Kenyon 06/29/2005fl09:35 PM ITstn Wind 52 o] 0 0 0 225 Red Wing 06/29/20051 100P Tstrn Wind 52 0 0 0 [ J[ [ ____________ ~kts. _________ http://www4.ncdc.noaa.gov/cgi-win/wwcgi.dll?wwevent-storms 8/18/2008
NCDC: Query Output 0 P6 22 of26 226 Countywide 07/17/2005 08:30 PM Tstm Wind 0 0 0 0 kts.o 227 Red Wing 08/09/2005 Tstm Wind 52 0 0 _____ _ __ _____ _____ ____ ___ _____ ____ kts._ _ _ _ 228 Frontenac 08/09/2005 03:21 PM Tstln Wind 5210]0 0 0 kts. 229 12/13/2005 08:00 PM Heavy Snow N/A 0 0 0 0 MNZ049>050 - 052>053 - 059 - 063 - 066>070 - 076 - 078 - 083 - 085 - 092>093 230 MNZ078 - 102/ 15 / 2 0 0 6 07 00 Winter StorN 085 - 092>093 PS N[ 231 03/12/2006 12:00 PM Winter Storm N/A 0 0 0 0 MNZ051 >054 - 056>070 - 073>078 - 082>085 - 091>093 232 MNZ051 - 03/15/2006 08:00 PM Winter Storm N/A 0 0 00 059>063 - 068>070 - 078 233 Hader 05/29/2006 03:25 PM Haill.00 0 0 0 234 Red Wing 05/29/2006 03:35 PM I Hail 0.75 in. 00 1K 0 2235 Wastedo 06/24/2006 04:20 PM Hail 0.75 0 0 0 in. 110 ___ 236 Hader, 06/24/2006 043 M Hall 0.75f 0 http://www4.ncdc.noaa.gov/cgi-win/wwcgi.dll?wwevent-storms 8/18/2008
NCDC: Query Output 0 H P 23 of 26 237 White Rock 06/24/2006 04:30 PM 1.00 0 0 0 in. 238 Goodhue 0 6 / 2 4 / 2 0 0 6 04 :40 PM Hail 0.88 0 0 0 0 in. 239 Welch 06/24/2006 04:45 PM Haill88 0 0 0 240 Red Wing 06/24/2006 04:55 PM Hail 0.88 0j0j 00 241 Cannon Falls 07/19/2006 09:05 AM Tstm Wind 52 0_0_0 _[0 1242 Zumbrota 07/19/2006 09:12AM Tstm Wind 55 010 0 kts. 243 Goodhue 07/19/2006j09:20 AM Tstm Wind 58 000 0 kts. 244 Zumbrota 07/19/2006 10:15 PM Hail 0.75] E0 0 I in. 245 07/30/2006 10:00 AM Heat N/A 0 0 0 0 MNZ041>045 - 047>070 - 073>078 - 082>085 - 091>093 _ __ 246 Kenyon 08/24/2006 09:05 AM Hail 0.88 0 0
, in.
247 Dennison 08/24/2006 09:19 AM Hail 0.75 0 0 0 10 248 Zumbrota 08/24/2006 09:50 AM 0.75 0 0 00ail 249 Wanamingo 08/24/2006 10:03 AM Haill.75 1 0 [ 0 http://www4.ncdc.noaa.gov/cgi-win/wwcgi.dll?wwevent-stom-is 8/18/2008
0 NCDC: Query Output 6 24 of 26 250 Stanton 08/24/2006 10:40 AM Hail 1.75 0 251 Kenyon 08/24/2006 10:50AM Hail 2.75 0 05.M 252 Wanamingo 08 /2 4 / 2 00 6 10:58 AM Hail 1.75 0 0 253 Zumbrota 08/24/2006 11:02 AM Haill.0j 0 0 0 254 Zumbrota 08/24/2006 11:15AM Hail ]1.00 o 0 00 255 MNZ070 - 01/14/2007 Heavy Snow /A 0 0 K OK 078 1256 MNZ078 J[Winter Stonmn I W[02/23/2007][22:30_PM 10oK j 257 03/01/2007 00:00 AM Winter Storm N/A 0 0 OK OK MNZ041>045 - 047>070 - 073>078 - 082>085 - 091 258 Hader 04/30/2007 13:22 PM Hail 0.88 0 0 OK K 259 MNZ063 - 05/06/2007 0 5AM High indK 078 k0W0 1260 Dennison I![05/23/2007115:0P IFTornado FOI Fo__II~l K]o 261 Red Wing 06/21/2007 00:42AM Hail 1.00 0I0 OK OK 262 Red Wing 06/21/2007 01:00 AM Hail 1.75 0 0 OK OK in. 263 Kenyon 07/03/2007 16:45 PM Hail 0].75][][ OK OK rinr. Irii http://www4.ncdc.noaa.gov/cgi-win/wwcgi.dll?wwevent-storms 8/18/2008
NCDC: Query Output Page 25 of 26 0 S 0 PM 264 Kenyon 07/26/2007 18:00 Thunderstorm 52 0 0 OK OK Wind kts. I l____ I i.....i _______________IL _________________ 265 Wanamingo 08/11/20003:38 AM Thunderstorm 50 0 0 OK _Wind kts. 266 Welch 08/11/2007 20:00 PM Hail 1.05 OK OK 267 Kenyon 08/11/2007 20:12 PM Hail 0.75 OK ]K 268 Kenyon 08/11/2007 20:12 PM Thunderstonr 55 [ OKOK 1269 Stanton o, o711oo 26 IIa hEod Wind kts. I0I0 [o818/007[230oM IFlash Flood ____________ ][/]o[]oK]K 270 Cannon Falls 08/28/2007111:25 AM Hail [ .0 1 0][OK
]1 OK 271 Zumbrota 09/13/2007 11:37AM Hail 0[88 j0 0OK [K 272 MNZ053 - 11/19/2007 22:30 PM Dense Fog N/A 0 0 OK OK 060>063 -
066>070 - 073>078 - 082>083 - 085 - 091 L L 273 MNZ051 - 12/01/2007 09:00 AM Winter Storm N/A 0 0 OK OK 058>060 - 066>069 - 075 - 078 274 MNZ078 - 01/29/2008 Blizzard N/A 0 0 085 - 093 275 02/10/2008 102:00 AM Cold/wind N/A 0 0 OK OK MNZ041>045 - Chill 047>070 - http://www4.ncdc.noaa.gov/cgi-win/wwcgi.dll?wwevent-storms 8/18/2008 I
P e is NCDC: Query Output S & 26 of 26 073>078 - 082>085 - 091 I II II ____ _ iI iI H. I 276 03/20/2008 20:00 PM Winter Storm N/A 0 0 OK OK MNZ054>056 - 060 - 064 - 070 - 078 1277 IvNZO8 Y[331/2008[1oo A ][eySnw ][/A Io t~[KJ 278 MNZ044 - 04/01/2008 00:00 AM Heavy Snow N/A 0 0 OK OK 049>053 - 058>063 - 066>070 - 076>078 - 084 1 11 279 Cannon Falls 05/31/2008 18:30PM Hail 1[.00l0 0 OK [K 280 White Rock 05/31/2008 18:40 PM Haill 1.25 0 OK OK ITOTALS: [17 [3] 1227.151M 26.600M Top of Page http://www4.ncdc.noaa.gov/cgi-win/wwcgi.dll?wwevent-storms 8/18/2008
ntuk.. Vuery uurput t~w'~ yuey 'Jtputhttp://www4.ncdc.noaa.gov/cgi-win/wwcgi.dll?wwevent'-storrms NOAA Satellite and Information Service Nattonai Climatic National Environmental Satellite, Data. and Information Service (NESDIS) Dta Center DOC >NOAA >NESDIS >NCDC Search Field: - SeLrc :NCD.. Query Results 271 event(s) were reported in Pierce County, Wisconsin Mag: Magnitude between 01/01/1950 and 05/31/2008 (High Wind limited Dth: Deaths to speed greater than 0 knots). Inj: Injuries PrD: Property Damage Click on Location or County to display Details. CrD: Crop Damage I of 7 8/17/2008 11:50 AM
-NkIJI-: YUery UMPUt 1NL~u~: t~ery otputhttp://www4.nedc.noaa.gov/cgi-win/wwcgi.dll?wwevent--storms Visconsin Location or County Date Time Typ e Mag Di th Inj PrD CrD I PIERCE 05/10/1953 1830 Tornado F2 0 0 2.5M 0 2 PIERCE 06/29/1954 1530 Tornado F .0 '0 .3K 0 3 PIERCE 07/30/1954. 1900 ~Tornado F2 ,0 0 OK 0 0 4 PIERCE '07/22/1955 1400 To.. ado F 10 0 3K 0 5 PIERCE 05/24/1958 1445 Tornado F3 0. 0 250K 0 6 PIERCE 05/23/1964 1800 Hail 2.00 0 0 0. in.
.7 PIERCE 07/15/1965 2000 Tornado ;Fl 0 0 OK 0 8 PIERCE 07/10/1966 2000 Tornado F1 2 250K 0
*iO
--i-.-
10 69 PIERCE '07/22/1967 :2130 Tornado F2 3 250KI0 10 PIERCE 07/15/1969 !2015 Tornado FO 0 0 '3K j0 11 PIERCE 07/18/1970 '2100 Tornado FO 0 0 25K !0 00 0 12 PIERCE 08/16/1973 .1530 Hail 10.75 0 in. 0 i0 0
. 13 PIERCE 09/10/1975 1835 Hail 1.75 in.
.0 *0 ,0 10
'14 PIERCE 09/08/1977 '2315 Tstm Win d 0 kts. 0 0 0 )0 15 PIERCE :06/16/1979!.1109 Tstm Win d 0 kts. '0 0 0
- !........
16 PIERCE '06/16/1979 1120 Tstmn Win d 0 kts. 0 0 0 0 17 PIERCE :06/19/1979 2200 Tstm Win d 0 kts. 00
'0 0 18 PIERCE 06/19/1979 2200 Tstm Win d t52 0 0 0 kts. 0 19 PIERCE 10/03/1979 1015 Tornado ;F2 0 0 25K 0
'0 120 PIERCE 07/11/1980 2040 Hail i3.00 0 '0 0 .0 in.
21 PIERCE 07/11/1980 2040 STstn Win td 69 '0 0 Ukts. 0 22 PIERCE .07/11/1980 2100 Tstmn Win d 152 kts. 0 0 0 0
,23 PIERCE 07/15/1980 .1945 Tsti Win ,d 0 kts.
0 0 0 0 24 PIERCE 07/15/1980 '2015 Hail 0.75 0
,0 in.
25 PIERCE 06/14/1981 0555 Tornado F2 0 250K 0 2 of 7 8/17/2008 11:50 AM
1,4ulit': vuery luutput ttp://www4.ncdlc.noaa.gov/cgi-wln/wwcgi.dii'lwwevent-storins U~tUt INI.~t.Ayuer 26 PIERCE 06/14/1981 0555 Tstm Wind 10 kts. .0 0 0 ,0 27 PIERCE 105/04/1982 1800 Tstm Wind 0 kts. 0 0 '0 !0
. 28 PIERCE 07/06/1982 0045 Tstm Wind 0 kts. ~0 0 0 0
*0 .0 29 PIERCE 07/25/1982 1530 Tstm Wind 69 0 0
'kts.
30 PIERCE 07/25/1982 1600 Tstm Wind 0 kts. .0 0 0 '0 31 PIERCE 08/26/1982 1930 Tstm Wind 70 0 0 .0 0 kts.
- 32. PIERCE '06/30/1983 '1905 Tstm Wind 152 0 0 0 *0 kts.
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. 107 Elmwood 06/26/1996 12:36 PM Hail 0.75 iin.
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- 08 6 of 7 8/17/2008 11:50 AM
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- 023>027 7 of 7 8/17/2008 11:50 AM
Guidelines for Operating an Interim On Site Low Level Radioactive Waste Storage Facility Public Version Final Draft February 12, 2008 EPRI Project Manager P. Tran EPRI - 3420 Hillview Avenue, Palo Alto, California 94304
- PO Box 10412, Palo Alto, California 94303 - USA 800.313.3774 - 650.855.2121
- askepri@epn.com - www.epri.com
DISCLAIMER OF WARRANTIES AND LIMITATION OF LIABILITIES THIS DOCUMENT WAS PREPARED BY THE ORGANIZATION(S) NAMED BELOW AS AN 0 ACCOUNT OF WORK SPONSORED OR COSPONSORED BY THE ELECTRIC POWER RESEARCH INSTITUTE, INC. (EPRI). NEITHER EPRI, ANY MEMBER OF EPRI, ANY COSPONSOR, THE ORGANIZATION(S) BELOW, NOR ANY PERSON ACTING ON BEHALF OF ANY OF THEM: (A) MAKES ANY WARRANTY OR REPRESENTATION WHATSOEVER, EXPRESS OR IMPLIED, (I) WITH RESPECT TO THE USE OF ANY INFORMATION, APPARATUS, METHOD, PROCESS, OR SIMILAR ITEM DISCLOSED IN THIS DOCUMENT, INCLUDING MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, OR (11) THAT SUCH USE DOES NOT INFRINGE ON OR INTERFERE WITH PRIVATELY OWNED RIGHTS, INCLUDING ANY PARTY'S INTELLECTUAL PROPERTY, OR (111)THAT THIS DOCUMENT IS SUITABLE TO ANY PARTICULAR USER'S CIRCUMSTANCE; OR (B) ASSUMES RESPONSIBILITY FOR ANY DAMAGES OR OTHER LIABILITY WHATSOEVER (INCLUDING ANY CONSEQUENTIAL DAMAGES, EVEN IF EPRI OR ANY EPRI REPRESENTATIVE HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES) RESULTING FROM YOUR SELECTION OR USE OF THIS DOCUMENT OR ANY INFORMATION, APPARATUS, METHOD, PROCESS, OR SIMILAR ITEM DISCLOSED IN THIS DOCUMENT. ORGANIZATION(S) THAT PREPARED THIS DOCUMENT ERS International, Inc. ORDERING INFORMATION Requests for copies of this report should be directed to EPRI Orders and Conferences, 1355 Willow Way, Suite 278, Concord, CA 94520. Toll-free number: 800.313.3774, press 2, or internally x5379; voice: 925.609.9169; fax: 925.609.1310. Electric Power Research Institute and EPRI are registered service marks of the Electric Power Research Institute, Inc. EPRI. ELECTRIFY THE WORLD is a service mark of the Electric Power Research Institute, Inc. Copyright @ 2008 Electric Power Research Institute, Inc. All rights reserved.
CITATIONS This report was prepared by: ERS International, Inc. 687 Cedar Forest Circle Orlando, FL 32828 Principal Investigator J. Kelly This report describes research sponsored by EPRI. The report is a corporate document that should be cited in the literature in the following manner: Guidelinesfor Operatingan Interim On Site Low Level Radioactive Waste Storage Facility: Public Version; EPRI, Palo Alto, CA: 2008. TR-xxxx. iii
ACKNOWLEDGMENTS This report includes the work of many individuals who helped guide the project, research the available information, prepare the text, review the draft documentation and edit and format the final report. Some contributed in the 2004 version only. The following individuals made significant contributions to this report (listed in alphabetical order): Ralph Anderson, NEI Miguel Azar, Exelon Nuclear Chris Baker, Exelon Nuclear (2004 version contributor) Mark Carver, Entergy John Closs, Nuclear Management Company Paul Dinner, Ontario Power Generation (2004 version contributor) Miklos (Mike) Garamszeghy, Ontario Power Generation Paul H. Genoa, Nuclear Energy Institute (2004 version contributor) Judy Grant, Southern Company Dwight Hostetter, Southern Company Johnny Houston, STP Nuclear Operating Company Graham Johnson, Duke Power Karl Johnson, Sacramento Municipal Utility District Changfuh Lan, Duke Power (2004 version contributor) David Lee, Progress Energy (2004 version contributor) Walt MacRae, American Electric Power Clint Miller, Pacific Gas and Electric Company Mike Naughton, EPRI (2004 version contributor) John Newey, Sacramento Municipal Utility District Robert Oliveira, American Nuclear Insurers David Overton, First Energy Corporation Paul Saunders, Suncoast Solutions, Inc. Al Schwenk, First Energy Corporation (2004 version contributor) Mike Snyder, Sacramento Municipal Utility District William E. Smith, TVA Nuclear (2004 version contributor) Roger Stigers, PPL Susquehanna Michael S. Tait, UKAEA (2004 version contributor) Lee Thomasson, Dominion David Vaught, Duke Power John Vincent, Nuclear Energy Institute (2004 version contributor) 0 iv
CONTENTS 1 INTRODUCTION .................................................................................................................. 1-1 1 .1 P u rp o s e ..................................................................................................................... 1-1 1 .2 De fin itio n s .................................................................................................................. 1-1 1.3 Storage of Hazardous Waste and Mixed Waste ......................................................... 1-2 1.4 Clarification of the Term "Interim Storage". ................................................................ 1-2,' 1.5 Organization of This Report ....................................................................................... 1-3 1.6 Time Value of the Technical Data .............................................................................. 1-4 2 GUIDANCE ON STORAGE FACILITY START-UP EVALUATION ...................................... 2-1 2.1 Licensing, Safety Analysis Report, and Other Regulatory Requirements for Start-up.2-1 2.1.1 Previous USNRC Guidance Replaced or Deleted ............................................. 2-1 2.1.2 Adding Storage Capacity or Storage Facilities ................................................... 2-3 2.2 Practical Storage Facility Start-up Evaluations ........................................................... 2-5 2.2.1 Start-up Review of Physical Facility Design Features ........................................ 2-5 2.2.2 Radiation Surveys, Monitoring, and Limitations ................................................. 2-8 2.2.3 Dry LLW and Solidified LLW Storage ............................. 2-10 2.2.4 W et LLW Storage ............................................................................................ 2-1 0 2.3 Security of Stored LLW and Interim Storage Facilities ............................................. 2-11 3 GUIDANCE ON RECORDS AND RECORDKEEPING FOR EXTENDED STORAGE .......... 3-1 3.1 Records of Worker Training ....................................................................................... 3-1 3.2 Records of Evaluations for Increased Storage Capacity ............................................. 3-1 3.3 Records for Inventory Control ................................................................................ 372 3.3.1 General Guidance on Stored Waste .................................................................. 3-2 3.3.2 Specific Guidance on Stored Waste Container Records ................ 3-2 3.3.3 U tility-S pecific D ata ........................................................................................... 3-3 3.4 Records of Monitoring and Inspections .......................... i......................................... 3-3 3.4.1 General Guidance for Facility Monitoring and Inspection Records ..................... 3-3 3.4.2 Specific Guidance for Container Monitoring and Inspection Records ................. 3-4 V
3.4.3 Guidance on Transportation Security Plan Considerations for Waste Stored On-site 3-5 6 3.5 Data Storage and Retrieval ........................................ 3-5 4 GUIDANCE ON WASTE CONTAINERS FOR EXTENDED STORAGE ...... :........................ 4-1 4.1 G eneral G uidance ..................................................................................................... 4-1 4.2 ALARA and Radiological G uidance ........................................................................... 4-2 4.3 G uidance on Corrosion Protection ............................................................................. 4-2 4.4 Guidance for Container Design and Testing ............................................................... 4-3 4.4.1 Key Package Design Requirements Applicable to LLW Storage ....................... 4-3 4.4.2 10 C FR 6 1.56 [47] ............................................................................................ 4-4 4.4.3 USNRC Branch Technical Position (BTP) [32] .................................................. 4-4 5 GUIDANCE ON WASTE FORMS FOR EXTENDED STORAGE .......................................... 5-1 5.1 G eneral G uidance on W aste Form ............................................................................. 5-1 5.2 Guidance for Minimizing Fire Hazards ....................................................................... 5-2 5.3 Guidance for Minimizing Gas Generation ................................................................... 5-2 5.4 Other Regulations and Regulatory Guidance on Waste Form .................................... 5-3 5.4.1 10 C F R 6 1.56 [47]... ..................................... ........................................... 5-3 5.4.2 USNRC Branch Technical Position (BTP) [32, 61] .................... 5-4 6 GUIDANCE ON MONITORING AND INSPECTION FOR EXTENDED STORAGE .............. 6-1 6.1 Guidance on Facility Inspections and Monitoring ......................... 6-1 6.2 Guidance on Individual Container Inspections and Monitoring ................................... 6-3 6.3 Guidance on Inspections for Dry Solid LLW and Solidified LLW Storage ................... 6-5 6.4 ALARA and Other Radiological Monitoring Guidance ............ .................................... 6-6 7 GTCC WASTE STORAGE CONSIDERATIONS AND GUIDELINES ................................... 7-1 7 .1 O ve rv ie w .................................................................................................................... 7 -1 7.2 Authorized Storage Locations for GTCC Waste .......................... 7-2 7.3 G TC C W aste Storage ................................................................................................ 7-3 7.3.1 Guidance for Start-Up Evaluation for GTCC Waste Storage .............................. 7-3 7.3.2 Guidance for Recordkeeping, Reporting, and Training Requirements for Storage of G TCC W aste ..................................................................................... ...... ... 7-4 7.3.3 Guidance for Waste Containers for Interim Storage of GTCC Waste ................. 7-5 7.3.4 Guidance for Waste Forms for Interim Storage of GTCC Waste ........................ 7-5 7.3.5 Guidance for Monitoring and inspection of Stored GTCC Waste ....................... 7-7 7.4 Extended Storage of GTCC Sealed Sources [7] ........................................................ 7-8 vi
Introduction 7.4.1 Guidance for Storing GTCC Sealed Sources ..................................................... 7-8 7.5 Storage of Fuel Assembly Integral Components in an ISFSI [56] ............................... 7-8 8 END OF STORAGE GUIDELINES AND CONSIDERATIONS ......................................... 8-1 8.1 G uidance for End of Storage ...................................................................................... 8-1 8.2 End of Storage C onsiderations .................................................................................. 8-2 A REFER ENC ES .............................................................................................................. A-1 vii
Introduction I INTRODUCTION The majority of commercial USA nuclear stations have constructed on-site LLW storage facilities, and most of these same utilities have experienced at least one short period of interim on-site storage. These Guidelines focus on operational considerations and incorporate many of the lessons learned while operating various types of LLW storage facilities. 1.1 Purpose This report provides general guidelines for the safe, efficient, and routine operation of an on-site LLW storage facility. It is anticipated that the user of this report will refer to it throughout the development and implementation of the storage program to ensure that major program components are being addressed and are being performed in a timely manner. It is further anticipated that the user will continue to refer to and utilize this report and the related EPRI storage reports as part of the routine operation of the storage facility. 1.2 Definitions The regulatory guidance in this Guidelines document is derived from USA regulations. However, the guidance is applicable to all LLW storage facilities operated by domestic and international members of EPRI's Nuclear Business Group. The following definitions clarify key terms which may not have a common meaning to the international community.
- Low level radioactive waste (LLW) is a general term for a wide variety of radioactively contaminated wastes. These wastes include protective clothing, machinery and related components, processed solids, and other substances that have been contaminated with varying levels of radioactivity. Various countries subdivide LLW into other categories, such as medium level waste and intermediate level waste. The USA subdivides LLW by "waste Class,"
including Class A, Class B, Class C, and Greater Than Class C (GTCC) wastes. For the purpose of these Guidelines, unless otherwise specified, the term LLW encompasses all of these international and domestic subcategories.
- Dry Solid LLW is solid radioactive waste which was not generated as a result of liquid treatment processes. This includes combustible solids, compactable solids, metal, plastics, concrete, and similar dry wastes.
- Wet Solid LLW is any radioactive waste arising from liquid treatment processes (e.g., spent ion exchange resin, spent cartridge filters, evaporator concentrates, sludge). In some countries, this is also simply called "wet wastes." Prior to shipment for disposal, wet solid waste may be further processed to ensure that there are no free liquids, therefore meeting the waste acceptance criteria for disposal.
1-1
Introduction V e Liquid LLW is defined as low level radioactive liquid (e.g., oil, decontamination solutions, aqueous liquids). For interim storage considerations, liquid waste is further defined as any waste that contains free liquid in amounts which exceed the requirements for disposal as established by the disposal facility licensing authority.
- Solidified LLW for storage purposes is liquid waste or wet solid waste that has been converted into a solid waste form to meet the waste acceptance criteria for disposal.
- Waste Container means any container used to collect and store LLW. The waste container may or may not be the transport waste package. If and when a waste generator determines that a waste container is the transport waste package, only at that time is the waste generator required to comply with the transport package regulations in 49CFR.
- Waste Package means a packaging plus its contents as used for transport. Packaging means a receptacle and any other components or materials necessary for the receptacle to perform its containment function. [64]. It should be noted that the contents of a transport waste package may be a waste container.
" Waste Storage Module or Storage Shield refers to a movable concrete assembly which provides safe interim storage for a waste container, including protection from adverse environmental conditions and inadvertent intruder access, as well as providing shielding to reduce radiation dose rates to personnel, surrounding area, and site boundary. For the purposes of this Guidelines document, a waste storage module or shield may contain or store a waste container or waste package, but it is not in itself a waste container or waste package. A waste storage module or shield with stored radioactive contents must be located within a licensed area, although it may be located within another structure or facility, or it may be located on a utility approved outside interim storage pad.
1.3 Storage of Hazardous Waste and Mixed Waste Storage of hazardous waste, as specified under the Resource Conservation and Recovery Act (RCRA), is not addressed in this Guidelines document. Some plants will need to store LLW that also contains hazardous wastes. These mixed wastes are regulated both by the US Nuclear Regulatory Commission (USNRC) (for the radioactive component of the waste) and by the US Environmental Protection Agency (USEPA) (for the hazardous component of the waste). The guidance provided in this Guidelines document applies only to the materials being stored in accordance with USNRC regulations. 1.4 Clarification of the Term "Interim Storage" This document is specifically intended for management of radioactive waste that is ultimately destined for final disposal. I t is not intended to be used for control of radioactive material (RAM) that is temporarily stored or staged for reuse. It also does not address storage of partially full containers that
- are "in-service. The term "interim storage," as used throughout this report, refers to storage within existing or planned interim on-site LLW facilities. As used herein, interim storage refers to a long term perspective (i.e., years) as opposed to small, "buffer storage" facilities provided for routine plant operation, even though both may be similar in design. It is important to note that most buffer 1-2
Introduction storage facilities were not constructed for LLW interim storage. Instead, most buffer storage facilities were originally designed as holding or staging areas pending one of the following situations: (1) Awaiting the accumulation of a sufficient number of LLW packages to constitute a full shipment. (2) Awaiting laboratory analyses for packaged LLW. Such analyses are necessary to complete waste classification and shipping document preparation. (3) Awaiting relief from temporary suspended access to existing disposal sites. (4) Awaiting availability of a special transport package or vehicle. (5) Awaiting approval from a disposal site to initiate a shipment pursuant to the advance notification requirements of the NRC, a particular state, compact authority, etc. (6) Awaiting approval from the regulator, disposal site, or other agency or consignee to ship the waste in a specific container, waste form, or package. (7) Holding LLW for decay of very short-lived radionuclides. (8) Awaiting the initial operation of a new processing facility or processing capacity (e.g., the plant may be waiting in line pending a backlog of waste at the waste processing facility). These clarifications are significant to several utilities operating under specificý licensing or other legal/contractual limitations related to on-site storage. Hence, for the purposes of this document, the term "interim storage" is intended to mean interim retention of radioactive waste until a final disposal option becomes available. 1.5 Organization of This Report The remainder of this report provides three types of "guidance:"
- 1. Regulatory Guidance - This is guidance which is derived from regulatory sources, including regulations, USNRC Information Notices, USNRC Generic Letters, and similar documents.
This guidance is closely aligned with the exact wording from the referenced documents. For easy identification, regulatory guidance is shown in italics and has a heavy vertical bar to the left of the paragraph, as illustrated by the bar to the left of this paragraph.
- 2. EPRI/Industry Guidance - This is guidance derived from existing EPRI interim storage publications, American Nuclear Insurers storage guidance, industry experience and lessons learned, and other non-regulatory sources. In addition, a review of USNRC Inspection Manuals and Procedures related to interim storage suggested a need for developing and including some additional guidance not specifically included in nor quoted from regulations or regulatory guidance documents (i.e., not verbatim regulatory guidance).
- 3. Recommendations - There are relatively few recommendations, as compared to other guidance items. In general, a plant electing to operate an interim storage facility in accordance with this 1-3
Introduction Guidelines document would normally adhere to Regulatory Guidance and EPRI/Industry Guidance and develop and document specific justification for any deviations. In contrast, the interim LLW storage facility operator is not required to implement any recommendations and is not required to develop or document any specific justification for ignoring such recommendations. For easy identification, recommendations are clearly identified with the word RECOMMENDATION capitalized and in bold at the beginning of the paragraph. This document also is extensively referenced using the symbol [x], where x is the number of the reference in Appendix A. In some cases, multiple references are enclosed in brackets, [x,y,z]. If a multiple reference includes Regulatory Guidance, then the Regulatory Guidance is also annotated as described above. 1.6 Time Value of the Technical Data As with all technical information, the regulatory requirements, disposal site criteria, and state-of-the-art practices will change over time. Every effort has been made to ensure that all technical data, regulatory requirements, disposal site criteria, etc., are current at the time of publication. It is incumbent upon the user of this report to remain current with advancements in LLW technology, particularly with regard to on-site storage requirements and disposal site waste acceptance criteria for their state/regional compact. 1-4
Guidance on Storage Facility Start-Up Evaluation 2 GUIDANCE ON STORAGE FACILITY START-UP EVALUATION This Guidelines document focuses on operating an interim low level waste (LLW) storage facility as opposed to the design and construction of the facility. However, operation includes start-up evaluations of certain design features, such as the proper operation of fire suppression systems, floor drains, ventilation, etc. Similarly, during the plant life cycle, new interim storage facilities may be added, existing facilities may be expanded, or significant design modifications may be made. Each of these evolutions would be followed by a start-up evaluation. This Chapter identifies key storage facility and program features which should be evaluated prior to storing LLW in a new, expanded, or otherwise modified on-site storage facility. RECOMMENDATION: It is recommended that a similar evaluation be performed:
- Prior to storing waste in a facility which has not previously stored waste of this type, form, activity, and high dose rate?
" Prior to storing waste in a facility which was not originally designed for such waste. " Upon initial publication of this Guidelines document to ensure that no significant item has been previously overlooked in the on-site storage program. RECOMMENDATION: Although not a requirement, it is recommended that a periodic comprehensive review be performed of the storage facility and all storage activities, records, procedures, etc. Ideally, this should be performed by an outside organization or as a peer review by another utility. 2.1 Licensing, Safety Analysis Report, and Other Regulatory Requirements for Start-up 2.1.1 Previous USNRC Guidance Replaced or Deleted Most storage facilities at USA commercial nuclear plants were constructed prior to 1994. In August 1994, the USNRC released a draft of SECY-94-198, Review of Existing Guidance Concerning the Extended Storage of Low-Level Radioactive Waste [ 1]. Although it was not officially signed and issued by the Commission, SECY 94-198 appeared to replace SECY 93-323 [63]. SECY-94-198 also combined, revised, and superseded the guidance in the following USNRC reference documents: SECY-90-318 [60], Generic Letter GL-81-38 [33], Information Notice IN-90-09 [36], Information Notice IN-89-13 [35], and Generic Letter GL-85-14 [31 ]. Those were primary reference documents used in the design and construction of LLW storage facilities, and some revised or deleted key passages from those documents may appear in plant procedures, license technical specifications, or the Safety Analysis 2-1
Guidance on StorageFacility Start-Up Evaluation W Report (SAR). Note that throughout this Guidelines document, wherever reference [1] is specified, it refers to SECY-94-198 and the references included in SECY-94-198, which are [31, 33, 35, 36]. The operator of a storage facility should review procedures, technical specifications, and the SAR to determine if any of the following considerations need to be addressed:
- References to GL-81-38, IN-90-09, IN-89-13, and GL-85-14 appeared to be superseded by SECY-94-198. However, SECY-94-198 was never formally issued by the Commission.
- SECY-94-198 states: The USNRC staff has eliminated any language relative to the above documents that implies a 5-year "limit, " beyond which storage would not be allowed, or which imposes any special review requirements. [1] Since SECY-94-198 was never formally issued, the 5-year limit was not eliminated. However, NUREG 0800 Revision 3 - March 2007, section 11.4 SOLID WASTE MANAGEMENT SYSTEM, as referenced by the NRC at a public meeting on waste storage conducted on January 30, 2008, states: "It should be noted that under SECY 94-198 and SECY 93-323, the provision requiring a Part 30 license for the storage of waste beyond 5 years has been eliminated".
- Further, the NRC recognizes the practicality that some licensees may be forced to store LLW in excess of five years while awaiting approval, construction and licensing of a I -
suitable LLW repository. Planningfor interim waste storage should be for a period of time based on the status of the licensee's State or regional compact disposalfacility program. [1] Planning for the term of waste storage is a critical consideration. Storage of less than five years may have a very different impact on waste containers and waste forms than storage for more than 15 years. However, for some disposal facilities and waste classifications, storage may be for an extended period and should be carefully considered in all aspects of the LLW storage plan. I. The previous requirementforpower reactorlicensees to obtain a separate Part30 licensefor storagefacilities located within a Part50 licensed area has been deleted. [1]
- However, ifa licensee terminates its Part50 license pursuantto decommissioning, then a Part30, Part 70, or Part 72 license will be requiredto store any remainingbyproduct material,special nuclear material,or GreaterThan Class C (GTCC) waste, respectively.
[1]
- Commercialstorage of LL Wgenerated by "other licensees " on the reactorsite will still require a separatePart30 licensefor the operation of thatfacility. [1]
Note: Nuclear Regulatory Commissionjurisdictionover storage ofLL W generatedand stored on-site will be retainedin Agreement States in accordancewith 10 CFR 150.15(a)(1). Indemnity coverage will be provided under and in accordancewith your existing indemnity agreement with the Commission. [1] (See Chapter 7 for additional guidance for GTCC waste storage.)
- 10 CFR Part50.59 evaluations are normally required when new LLWstoragefacilitiesare
- constructed.A §50.59 evaluation is also requiredfor certain changes to existingfacilities, including increases in total storedwaste volumes and activities beyond those previously evaluated and included in the SAR. [1] Utilities may wish to refer to NEI-96-07, Rev. 1 (2000), with regard to 50.59 reviews.
[65] 2-2
Guidance on Storage FacilityStart-Up Evaluation
- In instances where no changes in the facility orprocedures as described in the safety analysis report are involved in the storage of LL W, then a §50.59 evaluationwould not be required.[1]
- Waste no longer is requiredto be processedbefore storage norpackaged in a form readyfor transportand disposal at the end of the storageperiod. The intent of thatprevious guidance was to ensure that waste could be stored in a stableform and to eliminate double handlingof the LLW, and the resultant increasein radiationexposures,from processingwaste into one form for storageand then into anotherfor disposal. [1] This is addressed further in Chapter 5, Guidance on Waste Forms for Extended Storage.
0 Each license issued under 10CFR50 authorizingthe possession of byproduct and special nuclear materialproducedin the operation of the licensed reactorincludes, whether stated in the license or not, the authorizationto receive back that same material, in the same or alteredform or combined with byproduct or special nuclear materialproduced in the operationof another reactorof the same licensee located at that site,from a licensee of the Commission or an Agreement State, orfrom a non-licensed entity authorized to possess the material.[1] This is specified in 10CFR50.54(ee)(1). 2.1.2 Adding Storage Capacity or Storage Facilities Forproposedincreases in storage capacityfor LL Wgenerated by normal reactoroperationand maintenance, the safety of the proposal must be evaluated. Generally, Part 50 licensees are already authorized under 10 CFR Part30 to possess byproduct materialsproduced by the operation of their facility, within the limits of their operatinglicense, and they will have describedstorage of LL W in their SAR. [1] (Some plants may also have storage specifications and limitations in their Technical Specifications.) I General Guidance for Adding Storage Capacity To increase storage capacitiesauthorizedin the SAR, or to construct new storagefacilities,perform an evaluationof the safety ofLLWstorage, document that evaluation, and make it availablefor USNRC staff inspections. (See Chapter 7 for additional guidance for GTCC waste storage.) Then either: [1]
- 1. amendyour licenses where necessary to allow storage ofLL W;
- 2. perform a §50.59 evaluation, document the evaluation and report it to the Commission annually; or
- 3. conduct an evaluation under §20.1501 and maintaina record of the results in accordance with §20.2103(a).
It also is possible to store waste from one nuclear plant at another nuclear plant, as has been accomplished by. at least one USA nuclear utility. This requires a license amendment, which will specify the storage capacities and other limitations. This is discussed further in the following paragraphs. (Note that local restrictions or state laws may prohibit this capability.) Specific Guidance for Adding Storage Capacity 2-3
Guidance on Storage Facility Start-Up Evaluation
- Begin your evaluation with a review of the technical specifications, SAR, and any USNRC correspondence related to on-site storage. Identify any special authorizations and requirements for LLW storage. [2] Note storage limitations with regard to:
- Stored waste types, containers, and waste forms.
- Stored radionuclides and activity limits, including license possession limits (e.g., Part 30 or Part 70 license). [2]
- Physical and chemical form of the stored waste.
- Stored waste classifications (e.g., GTCC waste stored in an ISFSI).
- Limitations on stored volumes of each waste type.
- Limitations on dose rates (package dose rates and facility exterior dose rates).
- Any special storage considerations or restrictions.
- In cases where no changes in the facility orprocedures,as described in the SAR, are involvedfor storage of LL W, prepare safety evaluations ofsuch storage in accordancewith 10 CFR 20.1501. [1]
e In cases where the provisions of 10 CFR 50.59 apply, you may provide the added capacity, document the §50.59 evaluation,and report it to the Commission annually or as specified in the license. [1] Note: When §50.59 evaluationsare required,Inspection and Enforcement CircularNo. 80--18, dated August 22, 1980 [10], provides information on preparing§50.59 evaluationsfibr changes to radioactivewaste treatment systems, including those located in LL W stor*age facilities.[1]
- Ifyou determine that an unreviewed safety question exists, or that a change in the technical specifications is required, as specified in §50.59, or that an existing license condition needs to be changed to accommodate LL W storage: [1]
Authority for storage should be requested through applicationfor an amendment to your
§50 license to the Office of Nuclear Reactor Regulation (NRR), accompaniedby an environmental evaluation that considers the incremental impact as related to reactor operations.[1]
Application should also be accompaniedby a showing that the storageprovisions will not impact on the safety of reactor operationsand will notforeclose alternativesfor disposal of the wastes. [1]
- Maintain a recordof the results of start-up evaluations in accordancewith 10 CFR 20.2103(a). [1]
Multi-Station Interim Storaae Facility Authorization f 1 [ One USA nuclear utility which owns multiple nuclear stations applied for and received approval to ship LLW generated at one station for interim storage at a second station within the same utility. This
- required a license amendment for the receiving station. The station offered the following insights as possible guidance for other utilities considering such a license amendment:
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Guidance on Storage FacilityStart-UpEvaluation
- An environmental impact analysis was required as part of the license amendment submission package. The NRC allowed the station to reference the existing environmental impact report developed for plant operation.
- The amendment request has to be noticed in the federal register for 30 days as part of the review and approval process.
- The amendment submission documents must clearly state that the new storage approach will not create an unfunded liability.
- The time from submission to approval of the amendment was approximately seven months.
" No reference was made to any storage term either as part of the amendment request or the final amendment. 2.2 Practical Storage Facility Start-up Evaluations Prior to storing LLW, an overall evaluation of the interim storage facility should be performed to ensure that all facility features function correctly, identify any potential operating concerns and limitations, and capture baseline data. If this evaluation is being performed concurrent with LLW being moved into the facility, then it also starts the clock for subsequent inspections, surveillances, and monitoring.
- Start-up evaluations should be performed by individuals trained in accordance with:
- USNRC IE Bulletin No. 79-19, "Packaging of Low Level Radioactive Waste for Transport V and Burial." [4,11]
- USNRC requirements related to handling, packaging and storage of Radioactive Material Quantities of Concern (RAMQC). [59]
- USDOT regulations in 49 CFR 172 Subpart I related to (1) transportation Security Awareness training, and (2) Transportation Security Plan training.
- Other USDOT hazmat training requirements, as applicable.
2.2.1 Start-up Review of PhysicalFacilityDesign Features 0 erify~personnel trainingand administrativeprocedures have been establishedto ensure both control of radioactivematerials and minimum personnel exposures. [1]
- On-site storage facilities should be located inside a fenced security area. [4]
- They should not be located close to the site boundaries (fence line exposure issues, potential offsite releases) or in areas that are susceptible to flooding. [4]
- Note that the recommendation for a fenced security area is an ANI rate-setting technical consideration which might be satisfied by other physical access restrictions. The NRC does not require a fenced security area for all stored waste, although reasonable physical security measures are required. The extent of the security measures will be plant-specific, locally determined, and must be appropriate to the type of materials stored (e.g., extensive physical controls are required for Radioactive Material Quantities of Concern, whereas less stringent 0
controls are required for very low activity wastes). 2-5
Guidance on StorageFacilityStart-Up Evaluation
- *On-site storage facilities (buildings) should be provided with fire/smoke detectors and a suitable fire suppression system. [4]
- Alarm systems should be monitored in a constantly manned location, such as the control room or guard station. [4]
- The fire/smoke detectors should be periodically tested. [4]
- If a liquid suppression system is used, provisions should be made to contain the fire suppression liquids (e.g., curbs, drains, collection tank, etc.). [4]
I - Fire suppression devices may not be necessary if combustible materials are minimal in the area. [1]
-If gaseous suppression systems (e.g., C0 2 ) are used, the system should be provided with an interlock to warn of an automatic discharge when people are present in the building.
For example, storage buildings at Ontario Power Generation are equipped with a CO 2 deluge system that is interlocked with the building lights. It can only be initiated by manual local action and only if the lights are turned off. This procedure requires that when an alarm is received, a person checks the building to ensure that no one is present, turns off the lights, then initiates the system. If the system were to initiate automatically when someone was in the building, they would be asphyxiated. It also provides local confirmation that the alarm is real before the system is activated. This is not the standard for most plants.
- jI Confirm thatprovisions are incorporatedforcollecting liquid drainage,includingprovisionsfor sampling all collected liquids. [1, 4]
1 - Routing of the collected liquids should be to radwastesystems if contaminationis detected or to normal dischargepathways if the water ingress isfrom external sources and remains uncontaminated.[1]
- In general, it is considered that the above requirements refer to an enclosed building, or that the outside storage module is designed and capable of collecting any liquid that escapes the waste container inside the storage module or other outside storage container.
- The collection system should be sized such that no leakage can escape the facility. [4]
- The collection system should contain leak detection capabilities (i.e., sump high level alarms). [4]
- Alarm systems should be monitored in a constantly manned location such as the control room or guard station. [4]
- The alarm system should be on a routine maintenance and surveillance schedule. [4]
RECOMMENDATIONS: In general, the use of electronic leak detection systems should be avoided for several reasons: During the design and construction phase, the collection system should be sized based on the largest amount of liquid that could enter the facility (most likely the fire suppression system, if applicable). If a fire occurred, a central alarm station should be notified. 2-6
Guidance on Storage Facility Start-Up Evaluation
- The building should be inspected such that other water intrusions are identified (e.g.,
leaking water under doors) and repaired.
- The sump should be inspected periodically and kept dry. Therefore, anytime liquid is discovered in the sump, it should immediately be sampled, analyzed and processed or released, as appropriate.
- It should be recognized that the probability of something happening that will trip a high level alarm for a properly sized sump is almost zero; moreover, the dependability of an infrequently used high level alarm or an electronic leak detection system will degrade quickly.
- Confirm that provisions have been establishedfor reprocessingand repackagingof stored wastes.
[1] This may include shipping to an offsite vendor for reprocessing/repackaging.
- Any storageplans should address any potential reprocessingrequirementsfor eventual shipment and burial. [1]
% Proceduresshould require waste stored in outside areas to be held securely by installed hold-down systems. [1] I - The hold-down system should secure all containers duringsevere environmental conditions up to, and including, the design basis event for this waste storagefacility. [1]
-Ensure that any required hold down capabilities are available and are serviceable.
- An example of a severe environmental condition was a hurricane that moved a full, improperly secured cargo container to another location on site.
With regard to on-site storage modules, such as circular storage shields for liners and high integrity containers, most are quite heavy; however, they range from 14,000 lbs to just over 100,000 lbs; some rectangular storage modules weigh as little as 9,000 lbs. Design basis meteorological events may include tornadoes in excess of 300 mph, underscoring the need to secure the lighter containers. For any on-site storage shield, consideration should be given to securing the lid (top). Although lids can weigh up to 20,000 lbs, they can be displaced by a design-basis tornado, thereby exposing the stored waste container(s). Subsequent suction by the tornado could lift the stored waste containers from the storage module, turning them into missiles. For this reason, the majority of storage shield designs include a means of securing the lid to the sides of the storage module. The above considerations should be addressed as part of the safety analysis (e.g., 50.59 review) for on-site storage modules and other outside storage containers.
- Confirm that all containers, including empty containers, are protected from reasonably expected severe environmental conditions, including fire and flooding. [2]
- If outdoor storage is necessary, the pad should be adequately bermed to allow for the collection of rainwater and/or leakage from the stored containers. [4]
- The operative word here is "should." This should be addressed-either require berms or justify deletion-as part of the safety analysis (e.g., 50.59 review) related to control of leakage for on-site storage pads.
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Guidance on Storage FacilityStart-Up Evaluation
- iB External weatherprotection should be included where necessary and practicalto ensure container integrity againstcorrosionfrom the external environment. [1]
- In cold climates, protection may be required from freezing for wet solid wastes (resin, filters, concentrates).
- The impact of freeze-thaw cycles on concrete containers, modules, and structures also needs to be evaluated (e.g., small cracks or cavities could accumulate water which will cause further damage during freeze/thaw cycles).
- Proceduresshould requirestorage containers to be raisedoff storagepads, where water accumulation can be expected to cause external corrosionandpossible degradationof container integrity. [1] Ensure that this capability exists before attempting to place waste on the outside storage pad. Note that "storage container" in this statement refers to the "waste container" and not a storage shield or storage module.
- Efforts should be made to locate LLW storage facilities so as to reduce extremes of temperature or humidity (e.g., do not locate near a boiler room, laundry area, etc.). [2]
- Confirm that any required checks of fire protection systems have been performed (i.e., ensure that the fire suppression system is functioning properly). [2]
o Confirm that ventilation systems are installed as necessary and are functioning properly. [2]
- Priorto start-up,ensure thatprocedureshave been (1) written, (2) approved by management, and
~ (3) are available to storagefacility workersfor the following: [1,2]
- Safe placement, inspection, and repackaging of LLW in storage. [2]
- Periodic testing offire and smoke detectors. [1,4]
- Periodic testing of liquid collection system alarms. [4]
- Periodic testing of any installed security alarms.
- Continuously manned monitoring and response to fire, smoke, security, and liquid collection system alarms. [4] (See note in paragraph 3.2.1 regarding electronic leak detection systems and alarms.)
- A routine maintenance and surveillance schedule for all fire, smoke, security, and liquid collection alarm systems. [4] (See note in paragraph 3.2.1 regarding electronic leak detection systems and alarms.)
- Periodic inspection should be performed of the facility physical parameters, such as the full function of doors, latches and locks, berms, etc. This is especially important in areas that are I -
shared with other plant functions. The results of all testing, surveillances, and maintenance must be documented and available for review. [1,2] 2.2.2 Radiation Surveys, Monitoring, and Limitations O For any LL Wstoragefacility, the allowable quantity of radioactive materialis dictated, in part, by the dose rate criteriafor both the site boundary and unrestrictedareas on-site: [1] (This is, of course, in addition to any licensing conditions and any physical design restrictions.) 2-8
Guidance on Storage FacilityStart-Up Evaluation
- Dose rates within and around the LLW storage facility must be monitored routinely.
- Surveys should be performed and documented just prior to start-up to develop baseline data for the restricted area boundary and for the site boundary. This starts the clock for subsequent surveys and monitoring.
- An ALARA (as low as reasonably achievable) plan should be developed which describes the location of high and low dose rate packages, portable shielding, and the use of low dose rate packages to shield higher dose rate packages. Skyshine must be considered. The ALARA plan should seek to minimize exposure to (1) workers, (2) storage facility exterior, (3) restricted area boundary, and (4) site boundary.
- On-site dose associated with interim storage will be controlledper 10 CFR Part20, including the ALARA principle of 10 CFR 20. 1101. [1]
- 10 CFR 20.1301 limits the exposure rates in unrestrictedareas. [1]
- The 40 CFR Part190 limits restrict the annual dose from direct radiationand effluent releases from all sources. [1]
- Off-site doses from on-site storage must be sufficiently low to accountfor other sources (e.g., an additionaldose of < 1 mrem/year contributedby stored waste is not likely to cause the limits of Part 190 to be exceeded). [1]
- Inspect the storage area(s) to assure adequacy with respect to all radiological posting and waste container labeling requirements. [2]
I Total activity limits should be establishedand known to the storagefacility operators.[1]
- Waste management strategies should be based on the results of the 50.59 evaluation of onsite storage relative to existing FSAR accident scenarios, such as a fuel handling accident.
Determination of the requirements for the storage facility and stored wastes should envelope the potential radiological impact of storage operations, e.g., conservative release calculations should also be performed. This will be defined on a site by site basis consistent with the site-specific licensing requirements.
- In the event nuclide-specific controls apply, these should also be included in procedures and record systems.
- In the event that the total activity of the stored waste (inventory) approaches the current design assumptions after the appropriate decay corrections have been applied to that inventory, an evaluation of the operating strategies should be performed to define any additional precautions for storage and/or strategy changes. Decay corrections also should be performed on each waste package prior to shipment. (See also section 4.3.1.)
. Priorto start-up, ensure that other procedures have been (1) written, (2) approved by management, and (3) are available to storagefacility workers for the following: [1,2]
- Perform periodic radiological surveys if radioactive materials or waste are stored in the facility. (For the site boundary dose, many plants install thermoluminescent dosimeters (TLDs) to track the accumulated dose.)
- Perform additional radiological surveys when adding new packages to the storage facility which have dose rates sufficiently high to affect the restricted area boundary dose rate or site boundary accumulated dose.
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Guidance on Storage FacilityStart-Up Evaluation
- Perform additional radiological surveys whenever significant shuffling (rearranging) of stored waste packages or portable shielding has occurred. This would include an evaluation of any potential increase in dose rates within the storage facility due to the movement of low dose rate packages which serve as shielding for high dose rate packages.
- Verify posting and labeling of storage facilities, restricted area boundaries, and waste I-containers.
The results of all surveys, TLD readings, and other methods of radiologicalmonitoring must be documented and availablefor review. [1] 2.2.3 Dry LLW and Solidified LLW Storage , Ensure that all staging and storage areasfor dry or compacted LLWare located in restrictedareas where effective materialcontrol and accountabilitycan be maintained.[1,2] 0 Controls should be in place to segregate and minimize the generation of dry LL W to lessen the I impact on waste storage.[1]
-Integration of volume reduction hardware or the use of offsite volume reduction services should be consideredto minimize the needfor additionalwaste storagefacilities. [1]
. Ensure that thefollowing design objectives and criteriahave been addressed for solidifed waste storage containers andfacilities; [1] proceduralize where appropriate:
- Casks, tanks, and liners containingsolidified radioactivewaste should be designed to State and local codes to preclude or reduce the probability of occurrence of uncontrolledreleases of radioactivematerials because of handling, transportationor storage. [1]
- Accident mitigation and controlfor design basis events (e.g., fire,flooding, tornadoes, etc.)
must be evaluated and protected againstunless otherwisejustified. [1]
- All solidified radwaste should be located in restrictedareas where effective materialcontrol and accountabilitycan be maintained.[1]
- Although solidified waste storage structuresare not requiredto meet seismic criteria, protection should be afforded to ensure the radioactivity is containedsafely in a seismic event. [1]
- Contamination isolation and decontaminationcapabilitiesshould be developed. [1]
- Provision should be madefor additionalreprocessingor repackagingbecause of container failure and/or, as requiredforfinal transportingand disposal as per USDOT and disposal facility criteria.[1]
- When significant handling andpersonnelexposure can be anticipated,ALARA methodology should be incorporatedas per Regulatory Guide 8.8 and 8.10. [1]
2.2.4 Wet LLW Storage Ensure that thefollowing design objectives and criteriahave been addressedfor wet waste storage containersandfacilities; [1] proceduralize where appropriate: 2-10
Guidance on Storage Facility Start-UpEvaluation
- The facility supportingstructure and tanks should be designed to prevent uncontrolled releases of radioactivematerials because of spillage or accident conditions. [1]
- Structures that house liquid radwaste storage tanks should be designed to seismic criteria as defined in the USNRC StandardReview Plan, Section 11.2. [1,44]
- Foundationsand walls shall also be designed andfabricatedto contain the liquid inventory that might be released during a container/tankfailure. [1]
- All wet LLWstorage tanks or containersshould be designed to withstand the corrosive nature of the wet waste stored. The duration of storage under which the corrosive conditions exist shall also be consideredin the design. [1]
- All wet LL Wstorage structuresshould have curbs or elevated thresholds, with floor drains andsumps to safely collect wet waste, assuming thefailure ofall tanks or containers.
Provisionsshould be incorporatedto remove spilled wet waste to the radwaste treatment systems. [1]
- All wet LLW storage tanks and containers shall have provisions to monitor liquid levels and to alarm potential overflow conditions. [1] (Do not confuse stored liquids with stored resin or other wet solid wastes. For wet solid wastes stored in containers (e.g., HICs), it should be acceptable to have the ability to check for water inside the concrete storage module on a periodic basis. However, in the case where wet solid waste can be transferred to the storage tank or container by waste system piping, such as an in-plant resin transfer system, then level alarms are needed.)
- Verify that all potential release pathways of radionuclides (e.g., evolved gases, breach of container, etc.) shall be controlled, if feasible, and monitored in accordance with Part 50, Appendix A (General Design Criteria 60 and 64). [1]
- Surveillanceprograms should incorporateadequate methods for monitoring breach-of-container integrity or accidentalreleases.[1]
2.3 Security of Stored LLW and Interim Storage Facilities " Confirm that LLW is stored in a restricted area and is secured against unauthorized removal. [2] If adequate space in the protected area is not available, the storagefacilityshould be placedon the plant site and both a physicalsecurity program (fence, locked and alarmed gates/doors,periodicpatrols)and a restrictedareafor radiationprotectionpurposes should be established.[1] " Confirm that access control and security procedures conform to the plant physical security plan. [2] This also applies to RAMQC and any related Safeguards Information (documents, inventories, computer files).
- Confirm that storageplans address containerprotection as well as unauthorizedremoval of storedwaste or other radioactivematerials.[1,2]
-Access control and security must also conform to any additional controls established in the Transportation Security Plan and Transportation Security Plan Risk Assessment, as specified in 49 CFR 172 Subpart I.
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Guidance on Storage FacilityStart-Up Evaluation 2-12
Guidance On Records and Recordkeepingfor Extended Storage 3 GUIDANCE ON RECORDS AND RECORDKEEPING FOR EXTENDED STORAGE Regulations by USNRC and USDOT mandate keeping records of specific information on packaged low level waste (LLW) shipped for disposal. These recordkeeping requirements are an integral part of existing waste management programs at power plants. Storing waste in an interim on-site storage facility will impose additional recordkeeping requirements on the utility, which relate primarily to storage facility design and capacity evaluations, inventory control, monitoring and inspection. Regulatory guidance documents provide explicit recordkeeping requirements which are addressed in this Chapter. Nuclear insurance carriers also establish certain recordkeeping requirements, particularly with regard to the duration of record storage (ANI/MAELU Technical Guidelines for LLW storage). Other items are included that are considered prudent for recordkeeping purposes, such as information required for the USNRC's Uniform Low Level Radioactive Waste Manifest in 10 CFR 20, Appendix G. Taken together, all of these guidance documents constitute a comprehensive recordkeeping program. 3.1 Records of Worker Training Records of worker training should include:
- USNRC Inspection and Enforcement (IE) Bulletin 79-19 training
- Hazmat worker training
- Transportation Security Awareness training
- Transportation Security Plan training (including RAMQC considerations)
- Procedures training
- Crane and forklift training and qualifications
- Process Control Program training 3.2 Records of Evaluations for Increased Storage Capacity
" Maintain a record of the results ofsuch evaluations in accordance with 10 CFR 20.2103(a). [1]
" To increasestorage capacitiesauthorizedin the SAR, or to construct new storagefacilities, perform an evaluation of the safety of LL W storage, document that evaluation, and make it available for USNRC staff inspections. Then either: [1]
- amend your licenses where necessary to allow storage ofLLOW; [1
- perform a §50.59 evaluation, document the evaluation and report it to the Commission annually: or [1]
3-1
Guidance On Records and Recordkeepingfor Extended Storage
- conduct an evaluation under §20.1501 and maintaina record of the results in accordance with §20.2103(a). [1]
3.3 Records for Inventory Control 3.3.1 General Guidance on Stored Waste
- Records must identify any applicable authorized possession limits and provide adequate accountability to ensure the possession limits are not exceeded [2] (e.g., Part 30 or Part 70 licensees, or if identified during a Part 50 license risk analysis).
" Records must be maintained for all waste placed in storage. [2] Ishould
- Records of waste types, containers, contents, wasteforms, dates ofstorage, dates of inspection, etc.,
- be maintained. [1, 2]
Records of radioactive waste shipments.
- When waste is eventually shipped to an off site processor or to a disposal facility, all of the information on the USNRC's Uniform LLW Shipping Manifest will be needed. Utilities should consider capturing supporting data as early in the storage period as possible.
3.3.2 Specific Guidance on Stored Waste ContainerRecords
- Container Identification Code (i.e., unique container ID)
- Date Placed in Storage
- Reference Decay Date - This is the date that the nuclide distribution (e.g., scaling factors, correlation ratios) was established. Typically, this is the date that the activity was measured or the survey was performed. It is needed for decay correction calculations to determine the radionuclide content after a specified storage period. The decay corrected radionuclide content would be used in the inventory control function and in the shipping and disposal functions.
(Note: In the event that the total storage inventory is approaching a level that requires possible changes to normal operating procedures, a decay correction should be performed.)
- Container Storage Location - Should include sufficient detail to locate the container easily. The location detail for high dose rate packages and Radioactive Material Quantities of Concern is of special concern and should have detailed location information for retrieval and periodic inspection.
- Container Manufacturer, Type and Model Number
" Container Manufacturer's Serial Number - The container integrity monitoring program will likely require certain numbers of containers of each type and manufacturer to be inspected at programmed intervals. For high integrity containers, a manufacturer could change design details over the storage period. Thus, it could later prove important to know exactly when a container was manufactured in order to trace it back to a certain container lot number. These could be subjected to intensified monitoring or be listed as candidates for early disposal.
" Date of Packaging (or Date Packaged) 3-2
Guidance On Records and Recordkeepingfor Extended Storage
" Chemical Form (Bulk waste) - This refers to the most prevalent chemical form of the waste. In addition, if the waste was generated as part of a large decontamination process, the process also should be indicated.
Note: Utilities which are unable to obtain high quality characterization of waste streams or packages should consider saving a clearly labeled lab size sample of each batch of high dose rate, processed waste (such as dewatered resin) placed in storage. If any questions concerning the nature of the waste in storage arise during the storage period, samples will be available for analysis without the need of trying to sample closed waste packages.
- Total Activity
" Radionuclide Identity and Quantity
- Chelating Agents (>0.1% by volume)
- Solidification Agent - Include any sorbent, solidification binder, or stabilization media.
" Quantity of H-3, C-14, Tc-99 and 1-129 - The isotopes, H-3, C-14, Tc-99 and 1-129, are generally considered to be highly mobile in a disposal environment and, therefore, are most often limiting in terms of radiation exposure hazard associated with the disposal site. The quantity of each of these four nuclides is required by 10 CFR 20, Appendix G, to be included on the Uniform Low Level Waste Manifest. " Waste Class in Accordance with 10 CFR 61 3.3.3 Utility-Specific Data In addition to the preceding data, each utility should evaluate its own unique situation with respect to waste storage documentation. Some utility-specific data may include:
" Information on waste potentially vulnerable to biological action.
- Documentation on any locall tested and certified IP-2 or Type A packages.
" Process Control Program historical file related to waste processing and stabilization. " A review of state-specific regulations and requirements related to storage. 3.4 Records of Monitoring and Inspections 3.4.1 General Guidance for FacilityMonitoring and Inspection Records
- Records must be maintained to demonstrate that: [2]
- inspections of LLW packages are being performed to assure they maintain integrity; [2]
- radiation surveys of individual packages and the storage area, in general, are being performed; [2] i
- any required effluent sampling is being performed; and [2]
3-3
Guidance On Records and Recordkeepingfor Extended Storage
- security inspections are being performed. [2]
- Records of tests and inspections of installed fire protection systems. [2]
" Records of tests and inspections of installed ventilation systems, radiation alarms, and continuous air monitors.
I9. Records of the results of all surveys, thermoluminescent dosimeter (TLD) readings, and other methods of radiologicalmonitoring.[1] 3.4.2 Specific Guidance for ContainerMonitoringand Inspection Records Each plant will want to develop its own documentation format of monitoring and inspection items. The following items should be included in inspection documentation:
" Container identification number
- Contents description
- Storage location
" Date placed into storage w Inspection Reference - If a container is inspected during storage, an inspection report should be generated. For container-specific inspections and sampling, the inspection report and any subsequent inspection data become part of the overall characterization of that package. The package record should include a reference to the report or filled in data sheet that is generated.
(This will most likely be a quality control (QC) surveillance report.)
" Date of Last Inspection - Unless a container breach is suspected, it is likely that only a small percentage of the containers will receive a detailed inspection during the storage period. Hence, inspection dates need only be recorded for those containers actually evaluated.
- Inspection techniques used
- Evidence of deterioration (e.g., corrosion, bulging of container, leaks, surface contamination)
" Details of any handling damage or other defects (e.g., dents, gouges, crushing)
" Evidence of unstable package stacking (e.g., tilting, crushing of lower containers)
" Conclusions
" Recommendations for additional action
" Name(s) of inspector(s)
" Name(s) of reviewer(s)
" Appropriate attachments (photographs, liquid analysis results, radiation surveys, etc.)
3-4
Guidance On Records and Recordkeepingfor Extended Storage 3.4.3 Guidance on TransportationSecurity Plan Considerationsfor Waste Stored On-site On-site storage of waste packaged for disposal falls under the facility Transportation Security Plan. The following records should be retained: e Copies of Transportation Security Plan and associated Risk Assessment. (These may be controlled in a centralized location due to the possible confidential nature of the included security information.)
- Records of actions taken to respond to Security Hold Points (action items) identified in the Risk Assessment.
" Records of training required in accordance with the Transportation Security Plan.
- Records of audits, assessments, peer reviews, etc., related to the Transportation Security Plan.
- Records of actions taken in response to such assessments.
" Records of any stored containers/packages which contain Radioactive Material Quantities of Concern. [59]. 3.5 Data Storage and Retrieval It is important that database information and supporting data be reasonably retrievable. Some suggestions to aid retrievability are: " The storage facility operator should know where hard copy records are archived.
- RECOMMENDATION: Preference should be given to using the existing nuclear plant document control system, as many waste records are already stored there, and the records personnel are very knowledgeable on record retention techniques.
0 RECOMMENDATION: It is recommended that storage records be maintained in electronic format.
- Where possible, the database should be located on a network level computer, which offers greater protection from loss and greater security from theft. (Such data may be used for malicious purposes, as discussed in various NRC issued or endorsed guidance documents on Radioactive Material Quantities of Concern and Radionuclides of Concern. [59])
- Retain a backup copy of all software applications used to create and manage the database.
(Data could be stored longer than such applications are available on the market.)
- Backup copies of all electronic databases should be maintained in a separate, secure location from the original database.
- Maintain the data hardware and storage media in a reasonably current technology. This may require periodic migration of data to new hardware.
Note: Electronic data management technology has a short service life. Efforts should be made to ensure that the data storage system does not become obsolete by the end of the storage period. This challenge is often compounded by shuffling older computer equipment to storage operations and separating storage databases from the normal plant 3-5
Guidance On Records and Recordkeepingfor Extended Storage data network. There are many instances of data being recorded in electronic format and not being retrievable later because the original hardware became obsolete.
- Maintain current data by container or waste package number. Essentially, the entire history of any waste should be traceable by the waste container number from the point of collection to the point of disposal, including repackaging.
- For electronic databases, the container ID number should be the key waste tracking and record link for all storage activities, inspections, etc.
- If radiofrequency identification device (RFID) tagging is used, the container ID will be the connecting point between the RFID tag information and the storage database.
3-6
Guidance On Waste Containersfor Extended Storage 4 GUIDANCE ON WASTE CONTAINERS FOR EXTENDED STORAGE The USNRC places requirements on the permitted containers for storage and disposal. The USDOT also places requirements on packages and packaging used in transporting the waste to the disposal site. Nuclear insurers provide guidance on container storage based on lessons learned from industry storage experience. Ideally, containers used for on-site storage and eventual disposal will meet all regulatory and disposal requirements and guidance when first placed in storage (although that is not a requirement). This Chapter summarizes the regulations and guidance that are relevant to waste containers for on-site storage. Note: American Nuclear Insurers discourages outdoor storage, although recognizing that some plants have no other option. [4] Outside storage may, therefore, impact insurance rates, which should be factored into any cost analyses for storage facility design. 4.1 General Guidance The following design objectives and criteriaare applicablefor dry low level waste (LL W) storage containers andfacilities: [1] 0 Containersshould generally comply with the criteriaof 10 CFR Part 71 and 49 CFR Part 170 to minimize the needfor repackagingfor shipment. [1]
- Radioactive waste and radioactive material containers should, as a minimum, meet the requirements of a IP-1 package (e.g., 55 gallon drums, B25 boxes, sealand containers, high integrity containers (HICs), metal liners, etc.). [4]
- Guidance should be provided regarding container integrity requirements and acceptance criteria. [4]
A determination should be made to ensure the integrity of each container and package used for each waste type and waste stream. [2]
- Determine which wastes can be stored in each container/package.
- Determine which wastes cannot be stored in each container/package.
*The waste container should be designed to ensure radioactive materialcontainment during normal and abnormaloccurrences. [1]
- The waste containermaterials should not support combustion. [1]
- Radioactive wastes and materials should be repackaged when containers are degraded to the point V where integrity is questionable or leaking. [4]
4-1
Guidance On Waste Containersfor Extended Storage O s On-site storage facilities for radioactive waste and radioactive material should incorporate the necessary features to allow for removal of containers in storage. [4] e Each container should be accessible and retrievable in order to provide timely removal and repackaging of problem containers. [4]
- Radioactive wastes and materials can be repackaged in outdoor areas assuming appropriate radiological controls are in place. Note that while acceptable, this is not a preferred option as it exposes the licensee to increased liability related to environmental and personnel exposure controls. [4] It is also important to note that repackaging refers specifically to transferring the waste material from one container to another (versus placing a waste container in an overpack).
- Waste stored in outside areas should be held securely by installedhold-down systems. [1]
S The hold-down system should secure all containersduringsevere environmental conditions up to, and including,the design basis event for this waste storagefacility. [1]
-The above considerations should be addressed as part of the safety analysis (e.g., 50.59 review) for on-site storage modules and other outside storage containers. Refer also to the discussion in section 2.2.1 related to hold-down considerations for outside storage pads.
- The laterals (internals) for dewatering liners and HICs are certified for finite time periods (e.g., five years). Dewatered resin stored for more than the certification period will generally need to be re-dewatered. This must be considered when selecting the waste container internals and balancing that selection against the anticipated storage duration. Note that some liners and HICs come with sampling tubes which may allow for verification of "no free-standing liquids" and, therefore, eliminate the need for dewatering via the laterals after their certification has expired. RECOMMENDATION: Consider requiring sampling tubes on all liners and HICs used for storing dewatered wastes and thermal residue (e.g., steam reformed resin).
4.2 ALARA and Radiological Guidance
- All packages must be clearly labeled in accordance with 10 CFR 20.1904(a) and 20.2006. [1]
- Configuration (e.g., placement, stacking, etc.) of the radioactive waste or radioactive material containers within the building or outdoors is important. [4]
- Waste should not be stacked in such a way that it will increase the hazard of damaging the container or spilling the contents. [4]
- Higher dose rate items should be segregated and/or shielded. [4] This should be accomplished in accordance with the site ALARA plan.
e Increasedcontainerhandling andpersonnelexposure can be anticipatedduring storage. Consequently, the methodology for maintainingexposures as low as reasonablyachievable (ALARA) should be consistent with USNRC Regulatory Guides 8.8 and 8.10. [1,39,40] 4.3 Guidance on Corrosion Protection 0 Ilo Containerintegrity should be ensuredagainst corrosionfrom the external environment: external weather protection should be included where necessaryandpractical.[1] 4-2
Guidance On Waste Containersfor Extended Storage
- All containers should be selected and stored to prevent container degradation due to I corrosives, environment, and physical/mechanical stresses. [4]
.Compatibility of containermaterials with wasteforms and with environmental conditions external to the containers is necessary to prevent significant containercorrosion. [1]
-Container selection should be based on data that demonstrates minimal corrosionfrom the anticipatedinternaland external environmentfor a period well in excess of the planned storage duration. [1]
- Containerintegrity after the periodof storageshould be sufficient ,to allow handling during transportationand disposalwithout container breach. [1]
- If liquids exist that are corrosive,proven provisionsshould be made to protect the container (i.e., special liners or coatings) and/or to neutralize.the excess liquids. [1] For example, experience at Ontario Power Generation indicated that liquids in resin containers had a low pH following extended storage, which they contribute to cation resin breakdown releasing sulfur [57].
- Potentialcorrosionbetween the solid waste forms and the containershould also be considered.In the case of dewatered resins, highly corrosive acids and bases can be generatedthat will significantly reduce the longevity of the container.[1]
- The Process Control Programshould implement steps to ensure the above incompatible and corrosive conditions do not occur. [1] 1
- Containermaterialselection and coatingshould ensure that containerbreach does not occur during interim storageperiods. [1]
- If deemed appropriateand necessary, highly non-corrosive materials (e.g., stainless steel) should be used. [1]
- Containers must be compatible with the waste/material being stored and should be suitable for the anticipated storage conditions. [4]
Storage containersshould be raised off storagepads, where water accumulation can be expected to cause external corrosionandpossible degradationof containerintegrity. [1] The long term integrity of the container grapple rings, lifting lugs, and slings should be evaluated along with the rest of the container. 4.4 Guidance for Container Design and Testing 4.4.1 Key Package Design Requirements Applicable to LLW Storage General package design requirements are set forth in 49 CFR 173.410. The following general requirements may apply to stored waste containers if and when a licensee decides that a waste container has been re-designated as a transport waste package in accordance with the definitions in section 1.2: 0 Containers can be easily handled. 0 Containerlifting attachments are capable of handling three times the containergross weight. 4-3
Guidance On Waste Containersfor Extended Storage
" Lifting attachments must be testable and capable of beingproven competentfor use at the end of the storageperiod (i. e., waste packages must be safely retrievableat the end of storage).
" Containermust be free ofprotrusionsand easily decontaminated.
- Design shouldpermitno water accumulation on outer surfaces.
(In general, this applies to a container that: o serves as both the waste storage container and the transport waste package, or o is not designed to withstand long periods of exposure to moisture, or o for situations where a realistic potential exists for degradation of the integrity of the stored transport waste package. Generally, this does not apply to waste containers stored within en closed storage modules that protect the waste container, or to high density polyethylene high integrity containers. In general, it is not expected that minor moisture condensation from thermal c ycling would be sufficient to degrade the integrity of a package. Periodic inspections, and inspec:tion before transport, should specifically address degradation to ensure of the integrity of the pa ckage is maintained.)
. There should be no unsafe add-ons to the container.
0 Containercontents should be compatible with containermaterials.
- Note that most steel liners have not been tested to meet the IP-2 qualification criteria in 49 CFR 173 or those of 10 CFR 71.71 but could continue to be shipped in casks. There is no indication that there is any problem with their acceptance at disposal sites for solidified or Class A wastes. However, utilities should seriously consider coating these containers for longer-term integrity.
USNRC regulation 10 CFR 61.56 [47] provides the basis for regulating packaging wastes for disposal, which has applicability to waste containers used for storage. It provides the minimum requirements to facilitate handling at the disposal site. In addition, statements in the USNRC Branch Technical Position [32] further expand the USNRC's position on waste packaging. The following paragraphs identify the key USNRC requirements for all waste containment for disposal-and which also have applicability to on-site storage. 4.4.2 10 CFR 61.56 [47] Waste must not be packagedfor disposal in cardboardorfiberboardboxes. [47] This applies 1 primarily to utility dry solid waste (DSW). 4.4.3 USNRC Branch Technical Position(BTP) [32]
- The containershould be resistantto degradationcaused by radiationeffects. [32]
" The containershould be resistantto biodegradation.[32]
9- The containershould remain stable under the compressive loads inherent in the disposal environment. [32] W The containershould remain stable if exposed to moisture or water after disposal. [32] 4-4
GuidanceOn Waste Containersfor Extended Storage 119The as-generatedwaste should be compatible with the container. [32] The regulations also call for testing to grant approval (certification) of the waste forms. The USNRC stopped issuing topical reports on LLW and no longer approves waste forms. Waste form submittals must now be made to individual states or to the E-5 Committee of the CRCPD (Conference of Radiation Control Program Directors) as coordinated by the USDOE at Idaho National Labs. Refer to the BTP for detailed HIC design and acceptance criteria. 0 4-5
Guidance On Waste Formsfor Extended Storage 5 GUIDANCE ON WASTE FORMS FOR EXTENDED STORAGE It is the USNRC's position that it is desirable to place waste into storage in a form suitable for disposal, but only if there is sufficient assurance that the waste will ultimately be acceptable for disposal. [1] The guidance in this Chapter addresses both waste that is processed and ready for disposal, as well as waste that has been safely packaged but is in a form that is easily reprocessed or repackaged to meet future disposed waste acceptance criteria. 5.1 General Guidance on Waste Form 0 Where possible, waste should be processed before storage,packaged in a form readyfor transport and disposalat the end of the storageperiod in accordancewith the requirementsin 49 CFR Parts 170-189 and 10 CFR Part61 respectively. [1]
- Where a disposal route has not yet been defined, waste should be processed and stored safely in a form that will not unreasonablyforeclosefuture options. [1]
- Adequacy of the wasteform or package should be reassessedbefore disposal.[1] Industry experience suggests that this should be applied to every package.
- Some waste forms (i.e., liquids) are not appropriate for long term storage. [4]
- Industrial waste forms (e.g., corrosives, hazardous materials, flammables, etc.) should not be stored with radioactive wastes/materials. [4]
- Raw (untreated, unprocessed) radioactive waste or unpackaged radioactive materials should not be placed in the LLW storage facility. [4]
i *The packaged materialshould not causefires through spontaneous chemical reactions, retained heat, etc. [1, 47]
- All wet LL Win interim storagewill requireadditionalreprocessingbefore shipment offsite. [1]
- Industry experience supports this USNRC guidance as being applicable to waste stored for as little as 90 days.
- As a minimum, each wet LLW package should be evaluated to verify it meets the waste acceptance criteria for disposal prior to shipment to a disposal facility, with special attention given to the amount of free-standing liquid. (Refer specifically to 10CFR61.56(a)(3).)
5-1
Guidance On Waste Formsfor Extended Storage 5.2 Guidance for Minimizing Fire Hazards
- Strict application of a plant's process control program (PCP) and chemical control program should prevent any dangerous chemical mixtures in any of the wastes generated by the plant.
" Careful characterization of the wastes prior to packaging will help ensure that the waste packages will not contain incompatible materials.
- Filling and closing the storage packages, thus minimizing voids, will act as an additional barrier in preventing internally generated fires.
- Any remaining waste packages that may represent a fire hazard will need to be stored in fire protected areas with appropriate fire suppression equipment or systems.
5.3 Guidance for Minimizing Gas Generation 0 as generationfrom organic materials in waste containers can also lead to containerbreach and potentiallyflammable/explosive conditions. [1]
- To minimize the number ofpotentialproblems,the wasteform gas generation ratesfrom radiolysis,biodegradation,or chemical reaction should be evaluated with respect to containerbreach and the creation offlammable/explosive conditions. [1]
- Unless storage containers are equipped with special vent designs that allow depressurizationand do not permit the migration of radioactivematerials, resins highly loaded with radioactive material,such as boiling water reactorwater cleanup system resins, should not be storedfor a period in excess of approximately 1 year. [1]
- RECOMMENDATION: Accordingly, for resin which is likely to be stored for a period in excess of 1 year, a passive vent is recommended.
Source Controls To minimize the potential for gas generation in LLW, suitable source controls should be instituted. Source controls alone can dramatically reduce the probability of gas generation in LLW packages due to biodegradation and chemical reactions, and radwaste managers are encouraged to use these preventive means. Examples of source control include:
- waste stream segregation to the greatest practicable degree (e.g. condensate polisher resins are considerably less likely to support biological growths than are radwaste treatment resins);
- adherence to operating procedures and quality control measures in LLW collection, sorting, segregation, and characterization;
- proper housekeeping and a high degree of cleanliness in areas, equipment and systems where radioactive wastes are generated, handled and treated, so that the probability of biological agents or nutrients (including sanitary waste) entering or contaminating the radioactive waste stream(s) is minimized;
- contain and separate oils, grease, solvents and similar hydrocarbons, high detergent-content (especially phosphorus-based) aqueous wastes, etc.
Other Considerations 5-2
Guidance On Waste Formsfor Extended Storage
- Biocides may be applied to control biological growths in certain instances, but only as a last resort and when there is a known, well understood problem.
- Biocides are relatively short term inhibitors of biological growth, and need to be reapplied periodically.
- Some biocides should be avoided since they may contain components qualified as hazardous by the USEPA (i.e., result in a mixed waste).
" Oxidizers (i.e. chlorine, chlorites, peroxides) must not be used without full consideration given to potential reactions with the waste forms, containers, seals and gaskets.
" To minimize the possibility of a chemical reaction that would lead to gas generation, a strong chemical control program which prevents mixing of the waste with highly oxidative or other undesirable chemicals should be in place.
" To minimize the potential for radiolysis, ion exchange resin should be removed from service before accumulating levels of radionuclides that can lead to radiolytic decomposition [57]. This applies primarily to decontamination resins (i.e., resin generated during system decontamination projects), since the plant process resins usually do not accumulate sufficient activity.
" Venting devices may be needed to vent the generated gas and relieve the pressure inside the container.
" The potential for gas generation can be reduced by the selection of a suitable waste form. For instance, solidification of wet wastes, such as spent ion exchange resins and filter media, will substantially reduce the potential for gas generation. However, waste solidification is not a universal solution: for example, solidification of incinerator ash in cement may lead to significant gas generation. Other waste forms, such as vitrification or melting, may prove preferential for this waste type.
5.4 Other Regulations and Regulatory Guidance on Waste Form USNRC regulation 10 CFR 61.56 [47] provides the basis for regulating waste forms for disposal, which has applicability to waste storage. In addition, statements in the USNRC Branch Technical Position [32] further expand the USNRC's position on waste forms. The key USNRC requirements for all disposed waste forms-and which have applicability to stored waste forms-are as follows: 5.4.1 10 CFR 61.56 [47]
" Liquid waste must be solidified orpackagedin sufficient absorbentmaterialto absorb twice the volume of the fluid. [47] This rule applies primarily to utility oils. " Solid waste containingliquid shall contain as littlefree-standingand noncorrosive liquid as is reasonably achievable,but in no case shall the liquid exceed 1% of the volume. [47] Applicable to resins, evaporator bottoms, sludges, and filters.
Waste must not be readily capable of detonation or of explosive'decomposition or reaction at normalpressures and temperatures,or of explosive reactionwith water. [47] Applicable to decomposition of organic resins into hydrogen and methane from gas generation. 5-3
GuidanceOn Waste Formsfor Extended Storage
- Waste must not contain, or be capable ofgeneratingtoxic gases, vapors, orfumes harmful to persons "transporting,handling,or disposing of the waste. " This does not apply to radioactive gaseous waste. [47] This does apply to concerns over decomposition of organic resins into hydrogen and methane, resulting in gas generation.
- Waste must not be pyrophoric. Pyrophoricmaterialscontained in waste shall be treated, prepared,and packaged to be nonflammable. [47] This is not particularly applicable to most utility wastes.
- Waste in a gaseousform must be packaged at a pressure that does not exceed 1.5 atmospheres at 20 0 C (68°F). Total activity must not exceed 100 curiesper container.[47] Not particularly applicable to utility wastes.
- Waste containinghazardous, biologicalpathogenic, or infectious material must be treated to reduce to the maximum extent practicablethe potential hazardfrom the non-radiological materials.[47] Some wastes, such as liquid scintillation vials from bioassay (urine samples) could fall into this class for international utilities and government facilities.
The regulations in 10 CFR 61 have additional requirements for Class B and C wastes. These wastes must be able to maintain structural stability to inhibit slumping, collapse, or other failure of the disposal trench that could lead to radionuclide migration. Regulations stipulate a period of 300 years as the minimum time a Class B or C waste must retain its integrity. The additional requirements for these higher-level wastes are as follows. 5.4.2 USNRC Branch Technical Position(BTP) [32, 61]
- The waste should be a solidform or in a containeror structure thatprovidesstability after disposal.[32] All Class A liquid wastes, however, requiresolidification or absorption to meet the free liquid requirements.[61]
" The waste shall not containfree-standingand corrosive liquids. That is, the wastes should contain only trace amounts of drainableliquid, and in no case may the volume offree liquid exceed 1% of the waste volume when wastes are disposed of in containersdesigned to provide stability, or 0.5% of the waste volume for solidified waste. [32, 61] " The waste should be resistantto degradationcaused by radiationeffects. [32, 61]
- The waste should be resistantto biodegradation.[32, 61]
- The waste should remain stable under the compressive loads inherent in the disposal environment. [32, 61]
- The waste should remain stable if exposed to moisture or water after disposal.[32, 61]
- The as-generatedwaste should be compatible with the solidification media or container.[32, 61]
" Recognizing that all LLW is intended for disposition at the end of the interim storage period, the waste must meet the waste form requirements for stability set forth in the USNRC Technical Position on Waste Form, Rev. 1 [61 ] prior to disposal. The referenced document includes guidance on (1) the processing of wastes into an acceptable, stable waste form, (2) the design of acceptable high integrity containers, (3) the packaging of filter cartridges, and (4) minimization 5-4
Guidance On Waste Formsfor Extended Storage of radiation effects on organic ion-exchange resins. The regulations in 10CFR20.3 11 (d)(1), 10CFR20.2006(d), and Section III.A. 1 of Appendix F to 10CFR20.2001-2401, requires waste generators and processors to prepare wastes that meet the waste characteristics requirements of Part 61 (including the requirements for structural stability). The recommendations and guidance provided in this technical position are an acceptable method to demonstrate waste stability. [61] 5-5
Guidance On Monitoringand inspectionfor Extended Storage 6 GUIDANCE ON MONITORING AND INSPECTION FOR EXTENDED STORAGE Inspection efforts for storage facilities are generally geared toward assuring that licensees who are storing low level waste (LLW) for extended periods are in compliance with possession limits and license conditions, and do not develop an "out-of-sight, out-of-mind" attitude. This is normally accomplished by examining the licensee's records to ensure that the required surveys, inspections and accountability checks are being done and then following up with a physical examination of the storage area and waste containers/packages. [2] The guidance in this Chapter includes facility inspections, surveillances, radiological monitoring, and as low as reasonably achievable (ALARA) considerations. A formal surveillance program should be established to detect failure or degradation of radioactive waste/material storage containers.
- Inspections, surveillances, tests, and other monitoring should be performed by individuals trained in accordance with:
- USNRC IE Bulletin No. 79-19, "Packaging of Low Level Radioactive Waste for Transport and Burial." [4,11]
- USNRC requirements related to handling, packaging and storage of Radioactive Material Quantities of Concern (RAMQC). [59]
- USDOT regulations in 49 CFR 172 Subpart I related to (1) transportation Security Awareness training, and (2) Transportation Security Plan training.
- Other USDOT hazmat training requirements, as applicable.
6.1 Guidance on Facility Inspections and Monitoring e Determine whether the procedures for placement, inspection, and repackaging of LLW are clear and available to all who need to use them, and that they have been approved by management. [2] 1 Verify program documentationexists and is availablefor: [1,2]
- inspections ofLLWpackages to assure they maintain integrity; [1,2]
- radiationsurveys of individualpackages and the storage area, in general; and [1,2]
- any requiredeffluent sampling.[1,2]
6-1
GuidanceOn Monitoring and inspectionfor Extended Storage
- Inspect the storage area(s) to verify it is being properly maintained with respect to:
- Access to and housekeeping around waste packages.
- Lighting provided for visual inspections and to permit identification of unsafe radiological and non-radiological conditions. [2]
Note: Verify lights are functioning and adequate for the intended purpose. Over time, as the number of stored waste containers increases, the available light to some storage areas and containers will decrease.
- Confirm that all LL W is stored within a restrictedarea. [1,2] (In this case, "restricted area" refers to radiological controls. Adequate security considerations also apply to all stored LLW, which are addressed elsewhere in these guidelines or in the licensee's physical security plan.)
" Confirm that all LLW is secured againstunauthorizedremoval. [1,2]
- Confirm that any requiredchecks offire protection systems have been performed. [1,2,4]
- Verify that fire/smoke alarm systems are being monitored in a constantly manned location such as the control room or guard station. [4] In other words, if you have an alarm, you should be able to hear and respond to it 24 hours a day.
- Verify that personnel monitoring alarms know the correct alarm response.
- Verify the alarm system(s) is on a routine maintenance schedule, and documentation demonstrates that the system(s) is being properly maintained. [4]
" Confirm that liquid drainage and collection systems, as well as leak detection capabilities (e.g., sump high level alarms, if installed), are functioning properly and that no leakage has escaped the facility. [4] (See also the discussion on electronic leak detectors and sump alarms in section 3.2.1.)
- Verify that leak detection alarms are being monitored in a constantly manned location such as the control room or guard station. [4] In other words, if you have an alarm, you should be able to hear and respond to it 24 hours a day.
- Verify that personnel monitoring alarms know the correct alarm response.
- Verify the alarm system(s) is on a routine maintenance schedule, and documentation demonstrates that the system(s) is being properly maintained. [4]
Determine whether the correct type of container/packagingis being used to maintain the package integrity. [1,2]
- Check that waste containers are visible to allow routine inspection and that they are readily accessible to workers and inspectors. [2]
- Confirm that the placement or stacking of containers is stable and that the containers are not deformed under load, or likely to fall. [2,4]
6-2
Guidance On Monitoring and inspectionfor Extended Storage e Confirm that the containers are protected from reasonably expected environmental conditions, including fire and flooding, and that the storage location is not subject to extremes of temperature or humidity (i.e., near a boiler room, laundry area, etc.). [2] a Check ventilation of the storage area to determine if it is sufficient to prevent build-up of any gases produced by waste decomposition. [2]
- Verify that any installed ventilation equipment is working properly and is being maintained in accordance with a documented preventive maintenance schedule.
Verify that any ventilation equipment has the correct filters installed and that filters and charcoal replacement frequencies are specified in the preventive maintenance schedule. (This only applies where the facility design calls for such equipment, filters, and/or charcoal media.) % If outdoor storage is necessary, the following minimum program elements should be implemented: [4]
- A formal surveillance program should be established to detect failure or degradation of radioactive waste/material storage containers; [4]
- Routine contamination and dose rate surveys should be performed; [4]
- Periodic storm drain samples should be taken and analyzed. [4] The frequency should generally be consistent with the normal sampling frequency for all other plant storm drains;
- The pad should be adequately bermed to allow for the collection of rainwater and/or leakage from the stored containers; and [4]
- Collected water should be routinely monitored and, if necessary, processed prior to discharge. [4]
- It is considered that the above requirement for a bermed pad can be met if the outside storage module is designed and capable of collecting any liquid that escapes the waste container inside the storage module. This should be addressed in the safety analysis.
6.2 Guidance on Individual Container Inspections and Monitoring " All inspection procedures developed should minimize occupationalexposure. [1]
- A program of at leastperiodic (quarterly)visual inspection of containerintegrity should be performedfor a representativenumber ofpackages. [1,2,4]
- Visual inspections should include and evaluation of container integrity/breach, damage, swelling, corrosionproducts, seals, latches, retainingclips, markings/labels.
[1]
- Waste stored within an environmentally controlled building may support a reduced inspection frequency of every six months. [4] (Note that this is not specified in 6-3
Guidance On Monitoring and inspectionfor Extended Storage USNRC guidance documents and should be supported with documentation from stored waste historical trends.) [* " The use of high integrity containers (300-year lifetime design) wouldpermit an inspection program of reduced scope. [1]
- RECOMMENDATION: Initially, inspecting a rotating 10% of the high integrity containers in storage annually is recommended; but each utility should establish its own HIC sampling program. Again, historical trends will demonstrate if this percentage should be revised. [18]
RECOMMENDATION: Initially, inspecting 5% of steel waste containers (drums, boxes, liners) in storage each quarter is recommended; but each utility should establish its own inspection sampling program. Tracking historical trends will demonstrate if this percentage should be increased or decreased. [ 18] Inspections can be accomplished by use of television monitors; by walk-throughs istorage facility layout, shielding, and the containerstorage arraypermit; or by selecting waste containers that are representativeof the types of waste and containersstored in thefacility and placing them in a location specifically designedfor inspection purposes. [1]
- Container inspection frequencies and sampling sizes should be revised based on the presence of secondary containments or the performance of waste containers over time.
- Extending inspection frequencies should be done only when supported by historical trending data based on careful inspections which are well documented.
- New or refurbished waste containers should be inspected to detect manufacturing defects or handling damage that could render them unsuitable for waste storage or could accelerate their deterioration.
- This also applies to containers which have been stored in an empty condition or exposed to an outside environment for an extended period of time. (Stored empty containers can degrade quickly if not properly stored.)
- Inspect the storage location of empty containers.
- Empty polyethylene HICs should be stored inside or are otherwise shielded from UV rays which could degrade the containers. (Manufacturer specification.)
- Consider inspecting secondary or tertiary containments in lieu of direct inspection of primary waste containers.
- Consider using liquid detection and analysis and/or gas detection and analysis as a supplement to, or alternative for, visual inspection of waste containers.
6-4
Guidance On Monitoringand inspectionfor Extended Storage 6.3 Guidance on Inspections for Dry Solid LLW and Solidified LLW Storage
- Potentialreleasepathways of all radionuclidespresent in the solidified waste form shall be monitored as per Part50, Appendix A. [1]
- Surveillanceprograms shall incorporateadequate methods for detectingfailure of container integrity and measuringreleases to the environment. [1]
- Perform direct radiationand surface contaminationmonitoring of waste containers to ensure that levels are below limits specified in 10 CFR 20.1502 and 20.1906, and 40 CFR 173.397. [1]
I - All containersshould be decontaminatedto these levels or below before storage. [1]
-Inspect liquid drainagecollection systems and sample all collected liquids. [1]
- The results of any sampling should be documented for future inspections.
- Action items resulting from liquid sampling should be documented for future inspections.
- Review the action items resulting from previous inspections and sampling to verify appropriate followup actions were implemented. [2]
- Route any collected liquids to radwaste systems if contamination is detected or to normal dischargepathways if the water ingress is from external sources and remains uncontaminated.[1]
- If radioactive waste or radioactive material containers are stored outdoors, adjacent to the storm drain system, periodic storm drain samples should be taken and analyzed.
[4] IIsystems. 0* Verify that all waste stored in outside areas are held securely by installed hold-down [1]
- The hold-down system should be adequate to secure all containersduring severe environmental conditions up to, and including, the design basis event for this waste storagefacility. [1]
- Verify any required hold-downs are in place, secure, and in good repair.
- Verify that containerintegrity is ensured againstcorrosionfrom the external environment and that external weatherprotection is used where necessary and practical.[1]
- Verify all storage containers are raisedoff storagepads, where water accumulation can be expected to cause external corrosion andpossible degradationof containerintegrity. [1]
- Proceduresshould be developed and implementedfor early detection,prevention and mitigation of accidents (e.g., fires). [1]
e Verify that storage facility workers are trained, as applicable, in accordance with: 6-5
Guidance On Monitoring and inspectionfor Extended Storage
- USNRC IE Bulletin No. 79-19, "Packaging of Low Level Radioactive Waste for Transport and Burial." [4,11]
- USNRC requirements related to handling, packaging and storage of Radioactive Material Quantities of Concern (RAMQC). [59]
- USDOT regulations in 49 CFR 172 Subpart I related to (1) transportation Security Awareness training, and (2) Transportation Security Plan training.
- Other USDOT hazmat training requirements, as applicable.
6.4 ALARA and Other Radiological Monitoring Guidance
- Perform periodic (quarterly) contamination and dose rate surveys for the facility and for waste packages and whenever material is removed from or placed into the facility. [4]
I*.Inspect thefacility to ensure all radiologicalpostings are accurate andpresentin accordancewith 10 CFR 20: [1,2]
- within the building.
- at the exterior of the building.
- at all exit doors.
- at the restricted area boundary.
e Verify that monitoring is beingperformed at the site boundaryfor the storagefacility and that records are being maintainedfor all site boundary dose measurements (e.g., thermoluminescent dosimeter (TLD) readings). [1]
- Surveys should include general area radiation and contamination surveys as well as the monitoring of the radioactive waste or radioactive material containers for surface contamination.
[4]
- Special radiological surveys (e.g., soil samples, smears, direct frisk, etc.) should be performed when container breach is suspected; [4]
- Storage facilities (buildings) should be monitored by Continuous Air Monitors. [4] (In at least one utility storage facility, American Nuclear Insurers has recognized continuous air sampling systems as an acceptable alternative.)
- Ensure that any required monitoring is being performed.
- Verify that the monitoring equipment is operational.
- Verify that the results of monitoring are being saved and evaluated, and that any such evaluations are being documented.
- Verify that inspectedpackages are properly labeled. [1,2]
- This requirement specifically refers to transport waste "packages." However, licensees are also required to label or tag all waste containers with their radioactive 6-6
Guidance On Monitoringand inspectionfor Extended Storage contents. When a waste container or transport waste package is stored within a waste storage module or storage shield, it is recommended that the storage module/shield be posted and that each LLW container or package within the storage module/shield be tagged so as to identify the contents in accordance with 10CFR20. Tags sometimes become separated from containers/packages; therefore, it is further recommended that the tag on the waste container or package include a unique serial number or other unique identification or be cross referenced to the container serial number. The container and tag number should be directly linked to container records.
- Verify that ALARA considerations are being used in the placement of the higher activity waste containers in the storage area. [2]
- Action levels and limits should be established for the above radiological surveys and monitoring. [4]
- Action items resulting from liquid sampling should be documented for future inspections.
- Review the action items resulting from previous inspections and surveys to verify appropriate followup actions were implemented. [2]
6-7
GTCC Waste Storage Considerationsand Guidelines . 7 GTCC WASTE STORAGE CONSIDERATIONS AND GUIDELINES 7.1 Overview Greater that Class C (GTCC) waste is a waste designation that is unique to the USA nuclear industry. It refers to the upper end of the international ILW (intermediate level waste) classification. GTCC waste is low level waste (LLW) which exceeds the activity limitations for near-surface disposal set forth in USNRC regulations 10 CFR 61.55. [47, 62] At the present time, there is no licensed disposal facility for GTCC waste in the USA. This situation forces commercial nuclear reactors to store GTCC waste on-site until a disposal facility is constructed and licensed. . In October 2001, the USNRC revised its regulations in Part 72 [56] to accommodate concurrent storage of GTCC waste in an interim spent fuel storage installation (ISFSI). In addition to resolving numerous regulatory issues, this revision had three key effects: (1) A long term storage solution was established for GTCC waste independent of a Part 50 operating license. This allows for termination of the Part 50 license at the end of decommissioning. (2) A long term storage solution for GTCC waste impacts on GTCC waste generation similar to a disposal solution: both long term solutions have the effect of removing a long-standing nuclear plant operating practice of taking measures to avoid GTCC waste generation. (3) If the Barnwell LLW repository closes to out-of-region waste, as is currently required by South Carolina law, most USA commercial nuclear plants will lose their disposal option for Class B/C wastes by mid-2008. This represents a significant high activity storage volume impact. However, given the advanced state of technology for volume reduction and concentration, most Class B/C waste could be reduced in volume by factors ranging from 5:1 to more than 30:1 by conversion to GTCC waste. The availability of a long term GTCC waste storage option makes this a practical and economic solution to interim on-site storage, as well as reducing the overall stored waste inventory. The downside of converting Class B/C waste to GTCC waste is that disposal options may again become available for Class B/C waste. In contrast, the disposal options for GTCC 7-1
GTCC Waste Storage Considerationsand Guidelines waste are likely to remain uncertain for many years. Converting Class B/C waste to GTCC waste would close the door on a potential future Class B/C disposal route. Shortly after releasing the revised regulation in 10CFR72, the NRC also issued Interim Staff Guidance 17 (ISG- 17), Interim Storage of Greater Than Class C Waste, [62] to assist affected licensees in planning and implementing GTCC waste storage in accordance with the new regulation. 7.2 Authorized Storage Locations for GTCC Waste A generator of GTCC waste has the option of storing the waste either in an ISFSI or in a separate LLW storage facility (including outside storage pad and on-site storage modules). For waste stored in a LLW storage facility other than an Interim Spent Fuel Storage Installation (ISFSI):
- All storage considerations and guidelines addressed in the preceding Chapters apply.
" Additional guidance on GTCC waste container and waste form are provided in this Chapter.
- Storage in a LLW storage facility offers greater flexibility for waste containers and waste forms, including those discussed in preceding Chapters. This is especially valuable for waste which is still being characterized and evaluated for further processing.
- If GTCC waste is stored in any container or waste form not discussed in this Chapter, there is a significantly increased probability that the waste will need to be repackaged prior to disposal.
- Careful attention should be paid to the allowable radionuclides and activity limits, as GTCC wastes contain a significant quantity of one or more longer lived nuclides.
" Outside storage is discouraged by nuclear insurers. [4]
- Outside storage of GTCC waste likely represents a potential increase in security concerns (threat of malicious intent), depending on the location of the storage area and the type of storage modules.
Table 8-1 summarizes the licensing authorizations for the various types of radioactive waste which may be stored at an interim spent fuel storage installation (ISFSI). The table makes it clear that the licensee has broad storage options under a Part 50 license. It is also clear that the licensee has multiple options if it desires to terminate its Part 50 license. Note that a specific license obtained under Part 72 intentionally has a much narrower focus. 0 7-2
GTCC Waste Storage Considerationsand Guidelines Table 7-1 Summary of Licensing Authorizations for Radioactive Waste Storage Current Waste Types Stored at ISFSI Part 50 Part 30 (1) Part 70 (2) Part 72 Spent fuel aged >1 year V V Other materials associated with spent VV V V fuel storage (including secondary LLW) Solid GTCC waste V V / V Liquid GTCC waste V v/ (3) Other LLW (Class A, B or C) V / (4) (1)Byproduct material (2) Special nuclear material (3)A survey of decommissioning plants suggests that there is little, if any, liquid GTCC waste which will require on-site storage. (4) Other LLW (Class A, B, or C) cannot be stored in an ISFSI that is specifically licensed under Part 72. An exception applies to such waste which is generated as part of routine ISFSI storage activities, such as inspection and maintenance. However, such excepted waste must be removed and dispositioned in a reasonable period of time. 7.3 GTCC Waste Storage For GTCC waste stored in a LLW storage facility (i.e., not in an ISFSI), the guidance set forth in preceding Chapters apply. Additional guidance is provided below in the sections on recordkeeping, waste containers, and waste form. 7.3.1 Guidance for Start-Up Evaluation for GTCC Waste Storage
- Priorto storing GTCC waste in an ISFSI, the licensee must include in its Safety Analysis Report (SAR) how the GTCC waste will be stored to prevent any potential adverse reactions. The SAR should include equipment andfacility design, description ofplanned operations, and other information important to safe receipt, handling,packaging,storage and transfer of GTCC waste.
[56, 62] e If a Part 72 specific license has not yet been appliedfor, then the initial SAR should address GTCC waste storage. [56, 62] e If a Part 72 license already exists, then the SAR must be amended before GTCC waste is stored within the ISFSI. [56, 62] 7-3
GTCC Waste Storage Considerationsand Guidelines
- If GTCC waste storage will be accomplished under a Part 50 license, and if the storage will occur within the ISFSI, then the nuclearplant SAR section governing ISFSI operation must be amended to address GTCC waste storage, [56, 62]
Note: Remember that the primary consideration of such SAR submissions is to describe how GTCC waste will be stored to prevent any potential adverse reactions with stored spent fuel.
- A "72.48 review" (similarto a 50.59 review, but applied to an ISFSI) should be accomplished to identify any potential unreviewed safety questions related to storage of GTCC waste under a Part 72 specific license priorto making any changes, tests or experiments at an ISFSI. This should be accomplished using the same level of careful discipline appliedto "50.59 reviews "for an operatingnuclearplant and GTCC storage under a Part50 general license. [56, 62]
- A Quality Assurance program must be in placeprior to receipt of GTCC waste at an ISFSI.
This program is part of the QA programfor spentfuel storage, as well as any other radioactive materials or waste storedat the ISFSI. [56, 62]
- A programfor training,proficiency testing and certification of equipment and control operators is requiredpriorto the receipt of GTCC waste at an ISFSI. This same program is requiredfor supervisors of the equipment and control operators.[56, 62]
- This trainingmust include TransportationSecurity Awareness Trainingand TransportationSecurity Plan Training.[56, 62]
7.3.2 Guidance for Recordkeeping, Reporting, and Training Requirements for Storage of GTCC Waste The following guidance is in addition to guidance previously provided for recordkeeping of wastes in a LLW storage facility other than an ISFSL It applies only to stored GTCC waste containing special nuclear material (SNM):
- Written accountingprocedures must be establishedfor material control and accounting (mathematicalaccounting) sufficient to maintainan accurate accountingof all SNM received, stored,and transferredfrom storage.[56, 62]
- A physical inventory of spentfuel and GTCC waste containingSNM and stored at the ISFSI must be performed at least once every 12 months. [56, 62]
- All inventories must be documented, availablefor inspection, and maintainedin duplicate with the duplicate recordsstored in a separate, remote location. [56, 62]
- Records must show the receipt, inventory (including location), disposal, acquisitionand transfer of all GTCC waste containingSNM in storage at the ISFSI. [56, 62]
- Secondary Class A, B and C wastes generated as part of the normal operation of an ISFSI must be tracked and disposed in an undefined reasonable period of time. This indicates a need to record the dates of waste generation, along with the other recordkeeping requirements identified in the preceding Chapters. 0 7-4
GTCC Waste Storage Considerationsand Guidelines
- 7.3.3 Guidance for Waste Containersfor Interim Storage of GTCC Waste
- The USDOE has responsibility for providing acceptance criteria for containers used to transfer GTCC waste to a Monitored Retrievable Storage (MRS) facility and for disposal of GTCC waste. The availability of written guidance providing this waste acceptance criteria is not known, and it is not anticipated that this will be forthcoming within the next several years.
e The regulations and current guidance documents do not provide any separate design criteria for containers used to store or dispose of spent fuel or GTCC waste.
- For waste stored in a LLW storage facility other than an ISFSI, refer to the guidelines in preceding Chapters on waste containers for extended storage, including considerations for container corrosion.
- With regard to storage of GTCC waste in an ISFSI, a survey of decommissioning plants indicates that most are proceeding with the design review for GTCC waste containers using the same criteria applicable to spent fuel storage with additional consideration given to chemical, galvanic, organic or other reactions.
- It is incumbent upon the user to ensure that the GTCC waste does not adversely impact on the container,the storage cask, or anything else stored in the ISFSI. [56, 62]
- The USDOE has already developed several containers which could be used to transfer GTCC waste to an MRS and, subsequently, could be used to store GTCC waste in an ISFSI with a
- reduced likelihood of repackaging at the end of the storage period. However, these containers have not received final approval from the USDOE and have not been submitted to the USNRC for certification. Therefore:
- Storage of GTCC waste in any existing container design needs to consider the possibility of repackaging the GTCC waste for final disposal.
- Such repackaging may occur at the ISFSI, at another appropriately licensed plant processing and packaging area, at an off site vendor facility, or at the final repository.
These options should be addressed as part of the long range planning.
- Other GTCC waste containers may be accepted or grandfathered by the USDOE, and decommissioning nuclear plants are using several different container designs. In each case, repackaging prior to disposal remains a reasonable potential.
7.3.4 Guidance for Waste Forms for Interim Storage of GTCC Waste
- For waste stored in a LLW storage facility other than an ISFSI, refer to the guidelines in preceding Chapters on waste forms for extended storage, including considerationsforfire hazards and gas generation.Remember that:
- Storage in a LLW storage facility offers greater flexibility for waste containers and waste forms, including those discussed in preceding Chapters. This is especially valuable for waste which is still being characterized and evaluated for further Amk processing.
7-5
GTCC Waste Storage Considerationsand Guidelines
- If GTCC waste is stored in any container or waste form not discussed in this Chapter, there is a significantly increased probability that the waste will need to be repackaged prior to disposal.
So.oflquid GTCC waste within an ISFSI is prohibited, regardless of whether the ISFSI is operated under a Part50 general license or a Part 72 specific license. [56, 62]
- Waste form acceptance criteria for GTCC waste disposal is uncertain at the present time.
- Nuclear plants which have GTCC resin, filters, or liquid waste may want to postpone any final waste form or waste conditioning decisions until waste acceptance criteria become available.
- This would require that alternative storage solutions be provided for GTCC liquid waste (e.g., stored in an interim on-site storage facility other than an ISFSI and under the applicable Part 50, Part 30, or Part 70 license).
I 10 CFR Part 72 allowsfor storage at an ISFSI of solid GTCC waste only (including dewatered resin). [56, 62]
- Lessons learned from storing dewatered Class A, B and C resin and filter waste demonstrate that dewatered waste accumulates free-standing liquid after even a relatively short period of storage.
- Although dewatered waste forms may be acceptable for initial short term storage within an ISFSI in accordance with an approved SAR, the dewatering process is typically intended for a period of 90 days prior to disposal. Thus, after a relatively short period, continued storage of dewatered GTCC waste within an ISFSI may lead to a violation of the regulations and ISFSI license.
- To avoid a violation, monitoring and inspection provisions would need to be made to verify no free-standing liquid in dewatered waste forms (including resin and filters),
and those inspections-and probable repeated dewatering-would need to be performed at relatively short intervals. The need for such intensive inspection, monitoring, and repeated dewatering requirements suggests that storage of GTCC dewatered waste within an ISFSI is inconsistent with the regulatory intent regarding storing GTCC liquid waste.
- RECOMMENDATION: Thus, it is strongly recommended that alternative storage solutions be provided for GTCC dewatered waste (e.g., stored in an on-site storage LLW facility other than an ISFSI and under the applicable Part 50, Part 30, or Part 70 license). Solidification may become a feasible option in the future within ISFSI container designs--once such design criteria is known-although the need for container solidification internals would significantly impact container design and selection.
0 Other restrictionsshould be imposed on stored GTCC waste to minimize the potentialfor chemical,galvanic or other reactions. [56, 62] Refer to the guidelines and discussions on waste form in Chapters 5.
- 10 CFR 72 prohibits storing Class A, B and C waste in an ISFSI operated under a Part 72 specific license. [56, 62]
7-6
GTCC Waste Storage Considerationsand Guidelines Ill-Anoftheexception is applied to secondarywaste generated as part of the routine operation ISFSI (e.g., smears, repackaging,spill control, inspection). [56, 62]
-It should be noted that Part 72 does not allow secondary Class A, B and C waste to be stored within the ISFSI for an extended period. The language of the regulations in Part 72 suggests that such secondary waste should be removed from the ISFSI and dispositioned within an undefined reasonable time frame.
7.3.5 Guidance for Monitoring and inspection of Stored GTCC Waste Routine monitoring and inspection requirements and associated equipment are needed for ensuring the integrity of waste containers, minimizing occupational exposures, and avoiding uncontrolled releases from an ISFSI. The following guidelines apply: General scope of inspections and monitoring:
- ISFSI - Refer to SAR and license conditions for general monitoring and inspection requirements, in addition to the guidelines specified below.
- Other LLW storage facilities - Refer to the guidance specified in the preceding Chapters on monitoring and inspection.
General GTCC waste container inspection frequency:
- ISFSI - Use the same frequency applied for other ISFSI monitoring and inspection frequencies (refer to SAR and license conditions).
- Other LLW storage facilities - Replicate frequencies specified in the preceding Chapters on monitoring and inspection, which vary based on waste container selection and waste form.
- A physical inventory of GTCC waste containingSNM and stored at the ISFSI must be performed at least once every 12 months, regardless of the storage location. [56, 62]
If dewatered GTCC waste is stored within an ISFS, monitoringand inspection provisions need to be made to verify there is no free-standing liquid. [56, 62]
- Those inspections-and probable repeated dewatering-need to be performed at relatively short intervals (i.e., quarterly).
- The frequency of inspections can be adjusted after developing an historical trend which supports an extended frequency based on verifications of no free-standing liquid at shorter intervals.
- Each inspection and, if necessary, dewatering cycle, should be documented and records made available for review.
I" Verify that no Class A, B and C waste is stored in an ISFSI operatedunder a Part 72 specific license. [v] I exception is appliedto secondary waste generatedaspart of the routine operation
-An of the ISFSI (e.g., smears, repackaging,spill control, inspection). [56, 62]
7-7
GTCC Waste Storage Considerationsand Guidelines
- Secondary Class A, B and C waste cannot be stored within the ISFSI for an extended period. Verify that such secondary waste is removed from the ISFSI and dispositioned within an undefined reasonable time frame.
7.4 Extended Storage of GTCC Sealed Sources [7] Disposal is especially difficult for greater-than-Class-C (GTCC) sealed sources. The requirements for classifying waste for near-surface disposal are provided in 10 CFR 61.55. This regulation states that GTCC waste is generally not acceptable for near-surface disposal and must be disposed of in a geologic repository, pursuant to Part 60, unless another disposal method is approved by USNRC. Many sealed source users have discovered that they have no place to ship their GTCC sources for disposal, because no geologic repository is currently available. The Low-Level Radioactive Waste Policy Amendments Act of 1985 designates the Federal Government as responsible for disposal of GTCC wastes. Congress has designated the Department of Energy (DOE) as the responsible agency for disposal of GTCC waste, however related guidance has not yet been issued by the DOE. It should be noted that DOE efforts to recover GTCC, particularly high activity sources, has been exceptionally successful in recent years. 7.4.1 Guidance for Storing GTCC Sealed Sources The following information should be maintained relative to GTCC sealed sources:
" Identification of each sealed source to be placed in storage, including the manufacturer's name, model number, serial number, isotope, and activity. [7]
- A description of the accountabilityprogram to be implemented by the licensee to ensure that its sources remain in secure storage and are not used. The programshould provide reasonableassurance that the licensee can maintainsecurity and accountfor the sources (inventory at least annually). [7]
" A commitment to leak-test the sources at least once every 3 years and immediately before transfer to an authorizedrecipient. [7]
7.5 Storage of Fuel Assembly Integral Components in an ISFSI [56] Title 10, Code of Federal Regulations (10 CFR), Section 72.3, "Definitions," states, " Spent fuel includes the special nuclear material,byproduct material,source material,and other radioactive materials associatedwith fuel assemblies." Therefore, such materials are not GTCC waste and should be stored in accordance with regulations for spent fuel. Spent fuel storage is beyond the scope of this Guidance document. 11 7-8
End of Storage Guidelines and Considerations 8 END OF STORAGE GUIDELINES AND CONSIDERATIONS Lessons learned from extensive utility low level waste (LLW) storage experience have been translated to guidance for the end of the storage period. This Chapter also provides a discussion of related experience. 8.1 Guidance for End of Storage
- At the end of the storage period, inspect and repair all support utilities and equipment used to inspect, handle, repackage, or reprocess waste (e.g., lighting, crane, drains).
I All wet solid LLWin interim storage will require additionalreprocessingbefore shipment offsite. [1]
- Industry experience supports this USNRC guidance as being applicable to waste stored for as little as 90 days.
- As a minimum, each wet solid LLW package should be evaluated to verify it meets the waste acceptance criteria for disposal prior to shipment offsite, with special attention given to the amount of free-standing liquid.
- Determine if waste meets Waste Acceptance Criteria (WAC) for intended disposal facility (may be different from originally planned facility or WAC); repackage and reprocess as necessary. (Some countries refer to WAC as "conditions for acceptance (CFA).")
" Determine if the waste acceptance criteria for the intended disposal site has changed since the time the waste was placed in storage.
" Determine which wastes or packages meet the waste acceptance criteria for disposal for the intended disposal facility.
" Where practical, pursue a first in/first out approach (oldest waste should be considered for first disposal).
- Verify the storage documentation matches the container selected for removal.
- Assess the radiological conditions of all waste packages.
- Reevaluate waste characterization as needed to ensure waste classification.
- Perform decay analyses to identify the current nuclide concentrations.
- Verify the processed and stored waste meets the process control program (PCP) criteria in effect at the time of shipment to disposal (e.g., free-standing liquid). This involves a 8-1
End of Storage Guidelines and Considerations review of the disposal site waste acceptance criteria and the standards applicable to the PCP in effect at the time the waste was originally processed.
- Inspect for degradation of waste containers, including oxidation (rust), leaks, or visible damage (e.g., punctures, container swelling).
- For wet solid LLW (e.g.; resin, filter cartridges), verify no free-standing liquid.
" For solidified LLW, verify no free-standing liquid (e.g., rain, dew) on top of the monolith inside the container. " If it is a condition of disposal, verify that no excessive void spaces exist in waste containers which were stored without volume reduction conditioning. (Unprocessed waste can undergo subsidence within the waste container.) " Inspect rigging, grapples, lifting eyes, attaching points, etc. to ensure they still meet the applicable serviceability criteria. This includes both the crane rigging and any permanent attachments to the waste container/package. Replace as necessary.
- Evaluate the internal waste impact on containers (e.g., corrosion, H 2 and CH 4 generation).
" Evaluate changes in USDOT shipping restrictions (typification, labeling, IP requirements) which may require re-labeling or even repackaging. " Evaluate changes in hazardous waste regulations which might indicate conversion from a LLW to a mixed waste.
8.2 End of Storage Considerations
- 1. Waste settling during storage can create excessive void spaces (frequently >15%) for some waste packages. This applies primarily to nonmetal wastes which were placed in storage without volume reduction processing. This must be identified and, where necessary, the waste should be reprocessed and/or repackaged to meet the WAC.
- 2. Many plants which experienced one or more periods of interim, extended storage provided feedback on lessons learned at the end of the storage period while preparing to ship waste for disposal. Repackaging was not particularly common, although reprocessing (dewatering) of previously dewatered resins and filters was common. The following insights were provided from a nuclear plant which experienced an 18-month interim storage period following the closure of Barnwell in 1994/95:
- Five wet waste containers were placed in storage: four with resin; one with filters. At the time, polyethylene high integrity containers (HICs) were the most common storage approach in the USA. Resin solidification was not practical at that time, and there was no nationally approved binders for filter encapsulation. Moreover, design restrictions inherent to the local storage facility (restrictive sizing of high activity storage vaults) precluded storage in commercially available ferralium HICs.
" The high activity storage vaults are designed for storage of 80 ft3 containers. Because that is an unusual container size, they are exceptionally expensive.
8-2
End of Storage Guidelines and Considerations
- The plant fire protection staff required that all polyethylene HICs be placed in metal overpacks (as experienced at other plants, both in the USA and internationally), which further increased storage costs per container.
" All resin was dewatered, but the dewatering equipment test report was only validfor 90 days. After that period, the residual water content within the container was no longer certified to meet disposal criteria. This meant the plant would have to verify that no free-standing water was present before shipment for disposal.
- The plant arranged with the HIC supplier to install a separate dewatering verification tube with a stone filter at the bottom of the HIC. A connecting tube could be easily attached to a fitting in the cover plate of the HIC under the plastic lid, allowing for any free-standing water to be removed without the use of a fill head. This was an excellent pre-planning approach which reduced labor time and some of the associated radiation exposures for removing any residual water.
- Of the four resin HICs placed in storage, three exceeded the free water criteria when removed from storage. The entire process of verification and removal of any free-standing water was both labor intensive and dose intensive. Each metal overpack had to be opened, the plastic HIC lid was removed, the dewatering tube was attached, and the HIC dewatered. The polyethylene HICs also were removed from the metal overpacks and shipped separately for disposal to reduce disposal costs. The entire process from storage removal to shipment averaged one week per stored waste container.
" Filters were stored within a HIC with a suspended encapsulation basket. They had not been cement-encapsulated, as no nationally approved cement binder existed at that time.
However, since some of the filters contained a cellulose matrix, a potential existed for gas generation. If gas generation had become a problem, the container could have been filled with cement to mitigate the problem.
- Upon removal of the filter HIC from storage, water could be heard sloshing in the bottom of the container. It was estimated that several inches of water were present in the container, and it was solidified with cement prior to disposal.
" The quantifiable impact to the plant for removing, dewatering, and preparing these five containers for disposal was an extra $40,000 per container and an extra 420 mrem per container. The plant estimates that all of these costs and the associated dose could have been avoided if the waste had been solidified prior to storage. " The plant also removed a sixth container which had been in storage for more than two years. This was an empty metal liner. Although the container was indoors with its lid secured in place, approximately one inch of water was found inside the liner. The liner had a passive vent, and the plant believes that moisture entered the liner via the passive vent. Thus, the source of the water was dew formation on the walls of the container.
Again, this emphasizes the need for verifying the absence or presence of free-standing water in wet waste packages prior to shipment. It also highlights the potential benefits of solidification prior to storage. 8-3
End of Storage Guidelines and Considerations 8-4
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PotentialProblem Areas; December 1985.
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