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{{#Wiki_filter:UNITED NUCLEAR REGULATORY WASHINGTON, D.C. 20555-0001 February 28, 2012 Mr. Michael P. Gallagher Vice President License Renewal Projects Exelon Generation Company, LLC 200 Exelon Way Kennett Square, PA 19348 REQUEST FOR ADDITIONAL INFORMATION FOR THE REVIEW OF THE LIMERICK GENERATING STATION, UNITS 1 AND 2, LICENSE RENEWAL APPLICATION ENVIRONMENTAL REVIEW  
{{#Wiki_filter:UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 February 28, 2012 Mr. Michael P. Gallagher Vice President License Renewal Projects Exelon Generation Company, LLC 200 Exelon Way Kennett Square, PA 19348
 
==SUBJECT:==
REQUEST FOR ADDITIONAL INFORMATION FOR THE REVIEW OF THE LIMERICK GENERATING STATION, UNITS 1 AND 2, LICENSE RENEWAL APPLICATION ENVIRONMENTAL REVIEW


==Dear Mr,==
==Dear Mr,==
Gallagher:
Gallagher:
By letter dated June 22,2011, Exelon Generation Company, LLC (Exelon) submitted an application pursuant to Title 10 of the Code of Federal Regulations Part 54 (10 CFR Part 54), to renew Operating Licenses NPF-39 and NPF-85 for Limerick Generating Station, Units 1 and 2, for review by the U.S. Nuclear Regulatory Commission (NRC or staff). The NRC is reviewing the information contained in the license renewal application and the associated Environmental Report. The staff has identified, in Enclosure 1, areas where additional information is needed to complete the review. Enclosure 2 identifies certain documents reviewed during the November 7 -10, 2011, site audit that the NRC request be submitted by Exelon for further review. Additional requests for additional information may be issued in the future. As discussed with your staff, we request that you provide your responses no later than 30 days from the date of this letter. If you have any questions, please contact me at 301-415-2375 or by e-mail at leslie.perkins@nrc,gov. Sincerely, /} /J Leslie Perkins, Project Manager Projects Branch 2 Division of License Renewal Office of Nuclear Reactor Regulation Docket Nos. 50-352 & 50-353  
By letter dated June 22,2011, Exelon Generation Company, LLC (Exelon) submitted an application pursuant to Title 10 of the Code of Federal Regulations Part 54 (10 CFR Part 54), to renew Operating Licenses NPF-39 and NPF-85 for Limerick Generating Station, Units 1 and 2, for review by the U.S. Nuclear Regulatory Commission (NRC or staff). The NRC is reviewing the information contained in the license renewal application and the associated Environmental Report. The staff has identified, in Enclosure 1, areas where additional information is needed to complete the review. Enclosure 2 identifies certain documents reviewed during the November 7 -10, 2011, site audit that the NRC request be submitted by Exelon for further review. Additional requests for additional information may be issued in the future.
As discussed with your staff, we request that you provide your responses no later than 30 days from the date of this letter. If you have any questions, please contact me at 301-415-2375 or by e-mail at leslie.perkins@nrc,gov.
Sincerely,
                                            /}                 /J a~~~.
Leslie Perkins, Project Manager Projects Branch 2 Division of License Renewal Office of Nuclear Reactor Regulation Docket Nos. 50-352 & 50-353


==Enclosures:==
==Enclosures:==


As stated cc w/encls: Listserv Request for Additional For Limerick Generating Station License Environmental Meteorology and Air Quality Please provide the associated annual air emissions (pollutant and amount) for the most recent five years of operation for sources that are permitted under the Limerick Generating Station (LGS) Title V Operating Permit (TVOP 46-00038). Sections 2.9.1 and 2.9.2 of the LGS environmental report contains numerous references to weather data that was originally presented in the 1984 Environmental Report Operating License Stage. This data is at least 28 years old. Please provide the following meteorological information from the data recorded at the primary meteorological tower (Tower 1) or provide the best available data if the requested information is not available from Tower 1. The meteorological data should include the most recent year for which data is available.
As stated cc w/encls: Listserv
Please provide the following information: mean monthly temperatures at LGS; mean monthly relative humidity values for mornings and afternoons at LGS; mean annual rainfall and monthly rainfall distribution at LGS; and indicate whether channeling effects through the river valley continue to affect regional synoptic scale weather systems at LGS as indicated in Section 2.9.1 of the LGS license renewal application.
 
HydrologylWater Resources Describe the current status of Delaware River Basis Commission's review/approval of the docket revision (docket integration) for LGS, including, as applicable, the status of any additional studies, milestones achieved, projected timeframe for issuance, etc. Describe the current status of LGS' National Pollutant Discharge Elimination System (NPDES) permit renewal (#PA0051926), including, as applicable, milestones achieved, projected timeframe for issuance.
Request for Additional Information For Limerick Generating Station License Renewal Environmental Review Meteorology and Air Quality
etc. Provide copies of any notices of violations, nonconformance notifications, or related infractions received from regulatory agencies associated with NPDES permitted discharges, sewage systems, groundwater or soil contamination, including spills, leaks, and other inadvertent releases of fuel solvents, chemicals, or radionuclides (covering past five years). ENCLOSURE Aquatic Ecology Possum Hollow Creek is downstream of the LGS power block. Provide any sampling or monitoring reports for aquatic species and benthos from Possum Hollow Creek. LGS withdraws cooling water from the Schuykill River at the Schuylkill River pumphouse.
: 1. Please provide the associated annual air emissions (pollutant and amount) for the most recent five years of operation for sources that are permitted under the Limerick Generating Station (LGS) Title V Operating Permit (TVOP 46-00038).
The through screen intake velocity can influence impingement rates. Describe the through screen intake velocity for the Schuylkill River pumphouse. Provide a description of screen clearing and maintenance activities and frequency at the Schuylkill Pumphouse and the Perkiomen Pumphouse, which are owned and operated by Exelon. If available, provide a description of the screen clearing and maintenance activities and frequency at the Point Pleasant Pumping Station, which is not owned by Exelon. Zebra mussels are a non-native species that may occur within the water bodies from which LGS withdraws.
: 2. Sections 2.9.1 and 2.9.2 of the LGS environmental report contains numerous references to weather data that was originally presented in the 1984 Environmental Report Operating License Stage. This data is at least 28 years old. Please provide the following meteorological information from the data recorded at the primary meteorological tower (Tower 1) or provide the best available data if the requested information is not available from Tower 1. The meteorological data should include the most recent year for which data is available. Please provide the following information:
Describe zebra mussel monitoring and survey efforts and discuss whether LGS staff has identified zebra mussels in any of the water bodies associated with the makeup water system of LGS. Archaeological and Cultural Resources Submit the two Exelon Generation Company, LLC (Exelon) presentations that were provided at the audit on the status of the agreement and the path forward for Fricks Lock Historic District.
: a. mean monthly temperatures at LGS;
Docketing should follow guidelines from NRC regarding sensitive cultural resources location information.
: b. mean monthly relative humidity values for mornings and afternoons at LGS;
When submitting cultural resources information.
: c. mean annual rainfall and monthly rainfall distribution at LGS; and
do not include maps or coordinates of site location information. Describe the current the status of Fricks Lock rehabilitation and mothball project. Docketing should follow guidelines from NRC regarding sensitive cultural resources location information.
: d. indicate whether channeling effects through the river valley continue to affect regional synoptic scale weather systems at LGS as indicated in Section 2.9.1 of the LGS license renewal application.
When submitting cultural resources information, do not include maps or coordinates of site location information.
HydrologylWater Resources
____ _ References Requested for Docketing at Limerick Generating Station Environmental Site November 7-10,2011 Meteorology and Air QualitY mm A. Title V O perating Permit, TVOP-46-00038, Issued December 7, 2009 and Revised February
: 1. Describe the current status of Delaware River Basis Commission's review/approval of the docket revision (docket integration) for LGS, including, as applicable, the status of any additional studies, milestones achieved, projected timeframe for issuance, etc.
_____
: 2. Describe the current status of LGS' National Pollutant Discharge Elimination System (NPDES) permit renewal (#PA0051926), including, as applicable, milestones achieved, projected timeframe for issuance. etc.
__
: 3. Provide copies of any notices of violations, nonconformance notifications, or related infractions received from regulatory agencies associated with NPDES permitted discharges, sewage systems, groundwater or soil contamination, including spills, leaks, and other inadvertent releases of fuel solvents, chemicals, or radionuclides (covering past five years).
___________________________! B. A. Title V Compliance Certification ReP9rts (2006-2'-::-0_1_0L.......
ENCLOSURE 1
_____________
 
--I NAI (Normandeau Associates, Inc.). 2010a. East Branch Perkiomen Creek Aquatic Biology Assessment XIII, 2008 Monitoring Period. Prepared for Exelon Nuclear, Limerick Generating NAI (Normandeau Associates, Inc.). 2010b. East Branch Perkiomen Creek Aquatic Biology Assessment XIV. 2009 Monitoring Period. Prepared for Exelon Nuclear, Limerick Generating NAI (Normandeau Associates, Inc.). 2010c. Fish and Benthic Macroinvertebrate Community Composition in the Schuylkill River in the Vicinity of Limerick Generating Station During (Normandeau Associates, Inc.). 2010d. LeUerfrom Normandeau Associates, Inc. to Exelon Nuclear via email. Zebra mussel/Asiatic clam Survey. November.
2 Aquatic Ecology
PECO (Philadelphia Electric Company).
: 1. Possum Hollow Creek is downstream of the LGS power block. Provide any sampling or monitoring reports for aquatic species and benthos from Possum Hollow Creek.
1984. Environmental Report -Operating License Stage. Limerick Generating Station Units 1 &2. 5 vols. (RMC Environmental Services).
: 2. LGS withdraws cooling water from the Schuykill River at the Schuylkill River pumphouse. The through screen intake velocity can influence impingement rates.
1984. Progress Report. Non-Radiological Environmental Monitoring for Limerick Generating Station 1979-1983.
Describe the through screen intake velocity for the Schuylkill River pumphouse.
Prepared for C. i Philadelphia Electric Company. (RMC Environmental Services).
: 3. Provide a description of screen clearing and maintenance activities and frequency at the Schuylkill Pumphouse and the Perkiomen Pumphouse, which are owned and operated by Exelon. If available, provide a description of the screen clearing and maintenance activities and frequency at the Point Pleasant Pumping Station, which is not owned by Exelon.
1985. Progress Report, Non-Radiological Generating I G. RMC (RMC Environmental Services).
: 4. Zebra mussels are a non-native species that may occur within the water bodies from which LGS withdraws. Describe zebra mussel monitoring and survey efforts and discuss whether LGS staff has identified zebra mussels in any of the water bodies associated with the makeup water system of LGS.
1986. Progress Report. Non-Radiological  
Archaeological and Cultural Resources
! Environmental Monitoring for Limerick Generating Station 1985. Prepared for Philadelphia I 'H 1987. Progress-Report--;--Non-Radiological
: 1. Submit the two Exelon Generation Company, LLC (Exelon) presentations that were provided at the audit on the status of the agreement and the path forward for Fricks Lock Historic District. Docketing should follow guidelines from NRC regarding sensitive cultural resources location information. When submitting cultural resources information.
[ Environmental Monitoring for Limerick Generating Station 1986. Prepared for Philadelphia L_ Electric Company. November.
do not include maps or coordinates of site location information.
______,,_, I. RMC (RMC Environmental Services).
: 2. Describe the current the status of Fricks Lock rehabilitation and mothball project.
1988. Progress Report, Non-Radiological Environmental Monitoring for Limerick Generating Station 1987. Prepared for Philadelphia l Electric Company.
Docketing should follow guidelines from NRC regarding sensitive cultural resources location information. When submitting cultural resources information, do not include maps or coordinates of site location information.
___m_mU_ i J. RMC (RMC Environmental Services).
 
1989. Progress Report, Non-Radiological Environmental Monitoring for Limerick Generating Station 1988. Prepared for Philadelphia , Electric Comj?any.
References Requested for Docketing at the Limerick Generating Station Environmental Site Audit November 7-10,2011 Meteorology and Air QualitY                                 mm A. Title V Operating Permit, TVOP-46-00038, Issued December 7, 2009 and Revised February
December.  
~~17~2~0~10~___~__~~~~~~__~~~~~___________________________~
'Ir-K Describe any aquatic surveys conducted att he Bradshaw Reservoir, the Wadesv ille Mine Pool and discharge channel, Bedminster Water Processing Facility, and the Still Creek Reservoir.
!   B. Title V Compliance Certification ReP9rts (2006-2'-::-0_1_0L......._ _ _ _ _ _ _ _ _ _ _ _ _--I A. NAI (Normandeau Associates, Inc.). 2010a. East Branch Perkiomen Creek Aquatic Biology Assessment XIII, 2008 Monitoring Period. Prepared for Exelon Nuclear, Limerick Generating B. NAI (Normandeau Associates, Inc.). 2010b. East Branch Perkiomen Creek Aquatic Biology Assessment XIV. 2009 Monitoring Period. Prepared for Exelon Nuclear, Limerick Generating C. NAI (Normandeau Associates, Inc.). 2010c. Fish and Benthic Macroinvertebrate Community Composition in the Schuylkill River in the Vicinity of Limerick Generating Station During (Normandeau Associates, Inc.). 2010d. LeUerfrom Normandeau Associates, Inc. to Exelon Nuclear via email. Zebra mussel/Asiatic clam Survey. November. PECO (Philadelphia Electric Company). 1984. Environmental Report - Operating License Stage.
For example, submit for docketing the response to information need (AQ-2 from
Limerick Generating Station Units 1&2. 5 vols.
__ the Audit Information Needs)._" ____ 'm"mm L. Describe the frequency that water is withdrawn from the SChU Y.,I,ki," River compared to o,t,her" , sources. For example, submit for docketing the response to information need (AQ-3 from the Audit
(RMC Environmental Services). 1984. Progress Report. Non-Radiological Environmental Monitoring for Limerick Generating Station 1979-1983. Prepared for i       Philadelphia Electric Company. October.
___.__._mm.____
~MC (RMC Environmental Services). 1985. Progress Report, Non-Radiological                                   :
__ _mm_ ___,_om. m____ . ENCLOSURE
f-    ~~~~~~~~~~~n~~~~~~~r.Li~~ric~ Generating Statio_n_~8_~~~~paredfor_:~~lad_~I~~~__11 I    G. RMC (RMC Environmental Services). 1986. Progress Report. Non-Radiological
-2
!       Environmental Monitoring for Limerick Generating Station 1985. Prepared for Philadelphia             I
'H     ~1~~r~~~~m~~;~;~;~i~b;~~vicesT-        1987. Progress-Report--;--Non-Radiological
[       Environmental Monitoring for Limerick Generating Station 1986. Prepared for Philadelphia L_     Electric Company. November.                                                           ______,,_,
I. RMC (RMC Environmental Services). 1988. Progress Report, Non-Radiological Environmental Monitoring for Limerick Generating Station 1987. Prepared for Philadelphia l       Electric Company. ~eptember.                                                      ___ m_mU_
i J. RMC (RMC Environmental Services). 1989. Progress Report, Non-Radiological Environmental Monitoring for Limerick Generating Station 1988. Prepared for Philadelphia
,       Electric Comj?any. December.
'Ir-K Describe any aquatic surveys conducted atthe Bradshaw Reservoir, the Wadesville Mine Pool and discharge channel, Bedminster Water Processing Facility, and the Still Creek Reservoir. For example, submit for docketing the response to information need (AQ-2 from
__   the Audit Information Needs)._"                                                 ____ 'm"mm ~
L. Describe the frequency that water is withdrawn from the SChU Y.,I,ki," River compared to o,t,her" ,
sources. For example, submit for docketing the response to information need (AQ-3 from the Audit Informa!L~n Needsl:_~m ___.__._mm.____                     __ _mm_       ___,_om. m____ .
ENCLOSURE 2
 
                                                                                                                        -2
* M. Describe the intake velocity, traveling screens, and any other operational procedures or structural designs that limits impingement and entrainment at the Point Pleasant Pumping Station on the Delaware River or at the pumping stations on the Bradshaw Reservoir, Still Creek Reservoir, or Wadesville Mine Pool. For example, submit for docketing the response to information need AQ-5 from the Audit Information Needs.
* M. Describe the intake velocity, traveling screens, and any other operational procedures or structural designs that limits impingement and entrainment at the Point Pleasant Pumping Station on the Delaware River or at the pumping stations on the Bradshaw Reservoir, Still Creek Reservoir, or Wadesville Mine Pool. For example, submit for docketing the response to information need AQ-5 from the Audit Information Needs.
Describe any impingement or entrainment studies conducted at the Schuylkill Pumphouse, Perkiomen Pumphouse, or at the intakes on the Delaware River. For example, submit for i docketing the response to informatiql'l need (AQ-6 from the Audit InforrlJation NeedS):d Describe the extent of a thermal plume as a result of discharges to the Schuykill River. For ' example, submit for docketing the response to information need (AQ-7 from the Audit Informatior'lf\Jeeds
                                                                                                                                                  ~-----------~
). _m _______*******___ In the ER, LGS stated that three species of concern were identified in the Pennsylvania Natural Diversity Index (PNDI) search for LGS license renewal. However, it was unclear which three species LGS identified and where the species would occur on the LGS site and at the Bradshaw Reservoir.
Describe any impingement or entrainment studies conducted at the Schuylkill Pumphouse, Perkiomen Pumphouse, or at the intakes on the Delaware River. For example, submit for                                                                                                   i docketing the response to informatiql'l need (AQ-6 from the Audit InforrlJation NeedS):d O. Describe the extent of a thermal plume as a result of discharges to the Schuykill River. For '
Please state these species (AQ-B from the Audit Information Needs. I In addition, discuss the potential location of the three PNDI species of concern on the LGS site and at the Bradshaw Reservoir and Pumphouse, as discussed on Page 2-44 of the ER (AQ-B from the Audit Informatign Needs.L).,-,---=---=--________  
example, submit for docketing the response to information need (AQ-7 from the Audit Informatior'lf\Jeeds).                                                                                                           _m _ _ _ _ _ _ _ ******* _ __
..........
P In the ER, LGS stated that three species of concern were identified in the Pennsylvania Natural Diversity Index (PNDI) search for LGS license renewal. However, it was unclear which three species LGS identified and where the species would occur on the LGS site and at the Bradshaw Reservoir. Please state these species (AQ-B from the Audit Information Needs.
___ f-::---:::--:-_--:---.----:_-=-
I Q. In addition, discuss the potential location of the three PNDI species of concern on the LGS site and at the Bradshaw Reservoir and Pumphouse, as discussed on Page 2-44 of the ER (AQ-B from the Audit Informatign Needs.L).,-,---=---=--________                                                                                                   . . . . . _ __
__.---::-----:-:-:-
f-::---:::--:-_--:---.----:_-=-_ _.---::-----:-:-:-_ _:--H"':yd_ro-:-I()~_                                                                                      __.. . . . .~_
__
m A. Submit the last 5-years of monthly records for site groundwater production at all four site supply wells with o utage......Jp,--e_r_io_d_s_i_de_n_t_if_ie_d_._ _ _ _ _ _ _ _ _ _ - - - - - - - - - 1
__........m Submit the last 5-years of monthly records for site groundwater production at all four site supply wells with o utage......Jp,--e_r_io_d_s_i_de_n_t_if_ie_d_.
"   B.
__________
2006 Hydr()geolog..i<:J!!vc:...:e::..:s:..::ti"",g...:..:a.::.:.tio::..:n...:..:s=-:-:R:..::e.c.po::..:rt:..::.,---_ _ _ _ _ _---:_ _ _ _ _ _ - - - - - - 1
---------1  
! C. Provide a summary of the results of groundwater monitoring performed for tritium, strontium 90, and gamma-emitting radionuclides since 2006 (Le., groundwater protection program L-       m.....:..:..::L::c.:.:.=..~_ _ _ _ _..__:--_ _ _-:-----::---=:---.,-..                                                   _-:--:--_.___--.m   __--,,-_--,-.._mmm     -::___....*...........----1 D. NPDES permit renewal application for PA0051926 (minus Appendices A, Band C) and the l-..           administrative cO~p'It:lJ.~_ness letter received !~()m p~. DEF:                                                                               _m _  ...                             ._ ..
" B. 2006 Hydr()geolog..i<:J!!vc:...:e::..:s:..::ti"",g...:..:a.::.:.tio::..:n...:..:s=-:-:R:..::e.c.po::..:rt:..::.,---
1_ _ _ - - - - - - - _ _..                            _mm_          ..Archaeological a~_d CuJtura! I!~sources .._ .. __ .._
______---:______------1 ! Provide a summary of the results of groundwater monitoring performed for tritium, 90, and gamma-emitting radionuclides since 2006 (Le., groundwater protection program L-m.....:..:..::L::c.:.:.=
A. Submit the references called out in Section 2.10 of the ER for archaeological surveys and the architectural and historical analysis of the Fricks Lock Historic District (CR-2 from the Audit Information Needs). Docketing should follow guidelines from NRC regarding sensitive cultural resources location information. When submitting cultural resources information, do not include I1J&sect;lPs or coordinates of site location information.                                                                                       mm  _ _ _          _
.._____..__:--___-:-----::---=:---.,-..
,B. Submit the 1983 letter from the SHPO/PHMC. This letter contains the SHPO findings regarding the determination of impacts to cultural resources from construction and operation of T-lines (CR-3 from the Audit Information Needs). Docketing should follow guidelines from NRC regarding sensitive cultural resources location information. When submitting cultural resources information, do not include ma s or coordinates of site location information.
_-:--:--_.
___--.m __--,,-_--,-
.._mmm -::___....*...........D. NPDES permit renewal application for PA0051926 (minus Appendices A, Band C) and the l-.. administrative letter received pDEF: _m ... ._ .. 1___ __.._mm_ .._-------..Archaeological CuJtura!  
.._.. __ Submit the references called out in Section 2.10 of the ER for archaeological surveys the architectural and historical analysis of the Fricks Lock Historic District (CR-2 from ,B. Audit Information Needs). Docketing should follow guidelines from NRC regarding sensitive cultural resources location information.
When submitting cultural resources information, do not include I1J&sect;lPs or coordinates of site location information.
mm ____ Submit the 1983 letter from the SHPO/PHMC.
This letter contains the SHPO findings regarding the determination of impacts to cultural resources from construction and operation of T-lines (CR-3 from the Audit Information Needs). Docketing should follow guidelines from NRC regarding sensitive cultural resources location information.
When submitting cultural resources information, do not include ma s or coordinates of site location information.
C. Submit the list and description of the type of cultural resources that occur on the LGS site as a result of the CRGIS query (CR-4 from the Audit Information Needs). Docketing should follow guidelines from NRC regarding sensitive cultural resources location information.
C. Submit the list and description of the type of cultural resources that occur on the LGS site as a result of the CRGIS query (CR-4 from the Audit Information Needs). Docketing should follow guidelines from NRC regarding sensitive cultural resources location information.
When submitting cultural resources information, do not include maps or coordinates of site location information.
When submitting cultural resources information, do not include maps or coordinates of site location information.
_____ ________ -3 Exelon. Exelon Generation.
 
1985. Limerick Generating Station Non-radiological Environmental Report. 1986. Limerick Generating Station Non-radiological Environmental Report. 2010, Limerick Generating Station Wildlife Management Plan, 086. Wildlife Habitat Council (WHC). 2006, Site Assessment and Wildlife Management
D. Submit a summary of the cultural resources management plan to NRC, This summary should contain the table of contents, a brief overview, and a description of how and when the management plan will be implemented (CR-7 from the Audit Information Needs),
__ Opportunities.
Docketing should follow guidelines from NRC regarding sensitive cultural resources location information. When submitting cultural resources information, do not include maps or coordinates of site location information.
100 pp. LGS-R-2!{L
Terrestrial t:COIClav A        Biodiversity Evaluation of Possum Hollow Run (completed under the direction of Exelon's B.               1973, Relative Abundance                    During Migration.
________. . ...c------------:--.---. Submit a summary of the cultural resources management plan to NRC, This summary should contain the table of contents, a brief overview, and a description of how and when the management plan will be implemented (CR-7 from the Audit Information Needs), Docketing should follow guidelines from NRC regarding sensitive cultural resources location information.
C. Exelon, 1979-1983, Limerick Generating Station Non-radiological Environmental Report, 984, Limerick Generating Station Non-radiological                    Report, 1985. Limerick Generating Station Non-radiological Environmental Report.
When submitting cultural resources information, do not include maps or coordinates of site location information.
Exelon. 1986. Limerick Generating Station Non-radiological Environmental Report.
Terrestrial t:COIClav Biodiversity Evaluation of Possum Hollow Run (completed under the direction of Exelon's B. During Migration.
Exelon Generation. 2010, Limerick Generating Station Wildlife Management Plan, LGS-R 086.
C. Exelon, 1979-1983, Limerick Generating Station Non-radiological Environmental Report, 1973, Relative Abundance 984, Limerick Generating Station Report, In relation to reference WHC (2006) above, please provide the following for the Wildlife at Work Bird and bat project summary sheets, including location maps, data sheets, and notes b. Frog project summary sheet c_ Documented Environmental Evaluation Walkdown/Assessment (for frog fence replacement) (Rep()I"t,A,R 01183399)
H. Wildlife Habitat Council (WHC). 2006, Site Assessment and Wildlife Management
_ i J. Submit for docketing the text responses to site audit informa tion needs TE-1, TE-2, TE-3, 'li ... TE-4, TE-5, TE-6, TE-7, TE-8, and TE-9. These information needs can be found in ___ Environmental Audit Needs List dated November 4,2011 (ML mm_.______._._
__ Opportunities. 100 pp. LGS-R-2!{L ________. _____ . ________ ...c------------:--.---.
February 28, 2012 Mr. Michael P. Gallagher Vice President License Renewal Projects Exelon Generation Company, LLC 200 Exelon Way Kennett Square, PA 19348 REQUEST FOR ADDITIONAL INFORMATION FOR THE REVIEW OF THE LIMERICK GENERATING STATION, UNITS 1 AND 2, LICENSE RENEWAL APPLICATION ENVIRONMENTAL REVIEW  
I. In relation to reference WHC (2006) above, please provide the following for the indicated Wildlife at Work Projects:
a, Bird and bat project summary sheets, including location maps, data sheets, and notes
: b. Frog project summary sheet c_ Documented Environmental Evaluation Walkdown/Assessment (for frog fence replacement) (Rep()I"t,A,R 01183399)                 _
i J. Submit for docketing the text responses to site audit information needs TE-1, TE-2, TE-3,
'li     ... TE-4, TE-5, TE-6, TE-7, TE-8, and TE-9. These information needs can be found in NRC's
___ Environmental Audit Needs List dated November 4,2011 (ML11286A330).                   m m _ ._ _ _ _ _ _ . _ . _
 
February 28, 2012 Mr. Michael P. Gallagher Vice President License Renewal Projects Exelon Generation Company, LLC 200 Exelon Way Kennett Square, PA 19348
 
==SUBJECT:==
REQUEST FOR ADDITIONAL INFORMATION FOR THE REVIEW OF THE LIMERICK GENERATING STATION, UNITS 1 AND 2, LICENSE RENEWAL APPLICATION ENVIRONMENTAL REVIEW


==Dear Mr. Gallag her:==
==Dear Mr. Gallag her:==
By letter dated June 22, 2011, Exelon Generation Company, LLC (Exelon) submitted an application pursuant to Title 10 of the Code of Federal Regulations Part 54 (10 CFR Part 54), to renew Operating Licenses NPF-39 and NPF-85 for Limerick Generating Station, Units 1 and 2, for review by the U.S. Nuclear Regulatory Commission (NRC or staff). The NRC is reviewing the information contained in the license renewal application and the associated Environmental Report. The staff has identified, in Enclosure 1, areas where additional information is needed to complete the review. Enclosure 2 identifies certain documents reviewed during the November 7-10, 2011, site audit that the NRC request be submitted by Exelon for further review. Additional requests for additional information may be issued in the future. As discussed with your staff, we request that you provide your responses no later than 30 days from the date of this letter. If you have any questions, please contact me at 301-415-2375 or by e-mail at leslie.perkins@nrc.gov.
 
Sincerely, IRA! Leslie Perkins, Project Manager Projects Branch 2 Division of License Renewal Office of Nuclear Reactor Regulation Docket Nos. 50-352 & 50-353  
By letter dated June 22, 2011, Exelon Generation Company, LLC (Exelon) submitted an application pursuant to Title 10 of the Code of Federal Regulations Part 54 (10 CFR Part 54), to renew Operating Licenses NPF-39 and NPF-85 for Limerick Generating Station, Units 1 and 2, for review by the U.S. Nuclear Regulatory Commission (NRC or staff). The NRC is reviewing the information contained in the license renewal application and the associated Environmental Report. The staff has identified, in Enclosure 1, areas where additional information is needed to complete the review. Enclosure 2 identifies certain documents reviewed during the November 7-10, 2011, site audit that the NRC request be submitted by Exelon for further review. Additional requests for additional information may be issued in the future.
As discussed with your staff, we request that you provide your responses no later than 30 days from the date of this letter. If you have any questions, please contact me at 301-415-2375 or by e-mail at leslie.perkins@nrc.gov.
Sincerely, IRA!
Leslie Perkins, Project Manager Projects Branch 2 Division of License Renewal Office of Nuclear Reactor Regulation Docket Nos. 50-352 & 50-353


==Enclosures:==
==Enclosures:==


As stated cc w/encls: Listserv DISTRIBUTION:
As stated cc w/encls: Listserv DISTRIBUTION:
See next page ADAMS Accession No' ML12041A443 .. OFFICE LA:DLR PM:RPS2:DLR SC:RERB: DLR BC:RPB2: DLR NAME IKing LPerkins Almboden DWrona DATE 2/15/12 2128/12 2128/12 OFFICIAL RECORD COpy Letter to M. Gallagher from L. Perkins dated February 28, 2012 REQUEST FOR ADDITIONAL INFORMATION FOR THE REVIEW OF THE LIMERICK GENERATING STATION UNITS 1 AND 2 LICENSE RENEWAL APPLICATION ENVIRONMENTAL REVIEW DISTRIBUTION:
See next page ADAMS Accession No'.. ML12041A443 SC:RERB:          BC:RPB2:
HARD COPY: DLR RF E-MAIL: PUBLIC RidsNrrDlrResource RidsNrrDlrRpb1 Resource RidsNrrDlrRpb2 Resource RidsNrrDlrRerb Resource RidsNrrDlrRarb Resource RidsNrrDlrRapb Resource DLR_RPOB Resource RidsOpaMail RidsOgcMailCenter LPerkins DWrona RKuntz PBamford, DORL MSmith,OGC CKanatas, OGC EDiPaolo, SRI JAmbrosini, SRI (A) NSieller, RI NMcNamara, RI DScrenci, RI NSheehan, RI}}
OFFICE       LA:DLR             PM:RPS2:DLR       DLR               DLR NAME         IKing             LPerkins         Almboden           DWrona DATE         2/15/12           2128/12           2128/12 OFFICIAL RECORD COpy
 
Letter to M. Gallagher from L. Perkins dated February 28, 2012
 
==SUBJECT:==
REQUEST FOR ADDITIONAL INFORMATION FOR THE REVIEW OF THE LIMERICK GENERATING STATION UNITS 1 AND 2 LICENSE RENEWAL APPLICATION ENVIRONMENTAL REVIEW DISTRIBUTION:
HARD COPY:
DLR RF E-MAIL:
PUBLIC RidsNrrDlrResource RidsNrrDlrRpb1 Resource RidsNrrDlrRpb2 Resource RidsNrrDlrRerb Resource RidsNrrDlrRarb Resource RidsNrrDlrRapb Resource DLR_RPOB Resource RidsOpaMail RidsOgcMailCenter LPerkins DWrona RKuntz PBamford, DORL MSmith,OGC CKanatas, OGC EDiPaolo, SRI JAmbrosini, SRI (A)
NSieller, RI NMcNamara, RI DScrenci, RI NSheehan, RI}}

Latest revision as of 18:12, 6 February 2020

Request for Additional Information for the Review of the Limerick Generating Station, Units 1 and 2, LRA Environmental Review
ML12041A443
Person / Time
Site: Limerick  Constellation icon.png
Issue date: 02/28/2012
From: Leslie Perkins
License Renewal Projects Branch 2
To: Gallagher M
Exelon Generation Co
Perkins L, 415-2375
References
Download: ML12041A443 (8)
v • d • e


Text

UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 February 28, 2012 Mr. Michael P. Gallagher Vice President License Renewal Projects Exelon Generation Company, LLC 200 Exelon Way Kennett Square, PA 19348

SUBJECT:

REQUEST FOR ADDITIONAL INFORMATION FOR THE REVIEW OF THE LIMERICK GENERATING STATION, UNITS 1 AND 2, LICENSE RENEWAL APPLICATION ENVIRONMENTAL REVIEW

Dear Mr,

Gallagher:

By letter dated June 22,2011, Exelon Generation Company, LLC (Exelon) submitted an application pursuant to Title 10 of the Code of Federal Regulations Part 54 (10 CFR Part 54), to renew Operating Licenses NPF-39 and NPF-85 for Limerick Generating Station, Units 1 and 2, for review by the U.S. Nuclear Regulatory Commission (NRC or staff). The NRC is reviewing the information contained in the license renewal application and the associated Environmental Report. The staff has identified, in Enclosure 1, areas where additional information is needed to complete the review. Enclosure 2 identifies certain documents reviewed during the November 7 -10, 2011, site audit that the NRC request be submitted by Exelon for further review. Additional requests for additional information may be issued in the future.

As discussed with your staff, we request that you provide your responses no later than 30 days from the date of this letter. If you have any questions, please contact me at 301-415-2375 or by e-mail at leslie.perkins@nrc,gov.

Sincerely,

/} /J a~~~.

Leslie Perkins, Project Manager Projects Branch 2 Division of License Renewal Office of Nuclear Reactor Regulation Docket Nos. 50-352 & 50-353

Enclosures:

As stated cc w/encls: Listserv

Request for Additional Information For Limerick Generating Station License Renewal Environmental Review Meteorology and Air Quality

1. Please provide the associated annual air emissions (pollutant and amount) for the most recent five years of operation for sources that are permitted under the Limerick Generating Station (LGS) Title V Operating Permit (TVOP 46-00038).
2. Sections 2.9.1 and 2.9.2 of the LGS environmental report contains numerous references to weather data that was originally presented in the 1984 Environmental Report Operating License Stage. This data is at least 28 years old. Please provide the following meteorological information from the data recorded at the primary meteorological tower (Tower 1) or provide the best available data if the requested information is not available from Tower 1. The meteorological data should include the most recent year for which data is available. Please provide the following information:
a. mean monthly temperatures at LGS;
b. mean monthly relative humidity values for mornings and afternoons at LGS;
c. mean annual rainfall and monthly rainfall distribution at LGS; and
d. indicate whether channeling effects through the river valley continue to affect regional synoptic scale weather systems at LGS as indicated in Section 2.9.1 of the LGS license renewal application.

HydrologylWater Resources

1. Describe the current status of Delaware River Basis Commission's review/approval of the docket revision (docket integration) for LGS, including, as applicable, the status of any additional studies, milestones achieved, projected timeframe for issuance, etc.
2. Describe the current status of LGS' National Pollutant Discharge Elimination System (NPDES) permit renewal (#PA0051926), including, as applicable, milestones achieved, projected timeframe for issuance. etc.
3. Provide copies of any notices of violations, nonconformance notifications, or related infractions received from regulatory agencies associated with NPDES permitted discharges, sewage systems, groundwater or soil contamination, including spills, leaks, and other inadvertent releases of fuel solvents, chemicals, or radionuclides (covering past five years).

ENCLOSURE 1

2 Aquatic Ecology

1. Possum Hollow Creek is downstream of the LGS power block. Provide any sampling or monitoring reports for aquatic species and benthos from Possum Hollow Creek.
2. LGS withdraws cooling water from the Schuykill River at the Schuylkill River pumphouse. The through screen intake velocity can influence impingement rates.

Describe the through screen intake velocity for the Schuylkill River pumphouse.

3. Provide a description of screen clearing and maintenance activities and frequency at the Schuylkill Pumphouse and the Perkiomen Pumphouse, which are owned and operated by Exelon. If available, provide a description of the screen clearing and maintenance activities and frequency at the Point Pleasant Pumping Station, which is not owned by Exelon.
4. Zebra mussels are a non-native species that may occur within the water bodies from which LGS withdraws. Describe zebra mussel monitoring and survey efforts and discuss whether LGS staff has identified zebra mussels in any of the water bodies associated with the makeup water system of LGS.

Archaeological and Cultural Resources

1. Submit the two Exelon Generation Company, LLC (Exelon) presentations that were provided at the audit on the status of the agreement and the path forward for Fricks Lock Historic District. Docketing should follow guidelines from NRC regarding sensitive cultural resources location information. When submitting cultural resources information.

do not include maps or coordinates of site location information.

2. Describe the current the status of Fricks Lock rehabilitation and mothball project.

Docketing should follow guidelines from NRC regarding sensitive cultural resources location information. When submitting cultural resources information, do not include maps or coordinates of site location information.

References Requested for Docketing at the Limerick Generating Station Environmental Site Audit November 7-10,2011 Meteorology and Air QualitY mm A. Title V Operating Permit, TVOP-46-00038, Issued December 7, 2009 and Revised February

~~17~2~0~10~___~__~~~~~~__~~~~~___________________________~

! B. Title V Compliance Certification ReP9rts (2006-2'-::-0_1_0L......._ _ _ _ _ _ _ _ _ _ _ _ _--I A. NAI (Normandeau Associates, Inc.). 2010a. East Branch Perkiomen Creek Aquatic Biology Assessment XIII, 2008 Monitoring Period. Prepared for Exelon Nuclear, Limerick Generating B. NAI (Normandeau Associates, Inc.). 2010b. East Branch Perkiomen Creek Aquatic Biology Assessment XIV. 2009 Monitoring Period. Prepared for Exelon Nuclear, Limerick Generating C. NAI (Normandeau Associates, Inc.). 2010c. Fish and Benthic Macroinvertebrate Community Composition in the Schuylkill River in the Vicinity of Limerick Generating Station During (Normandeau Associates, Inc.). 2010d. LeUerfrom Normandeau Associates, Inc. to Exelon Nuclear via email. Zebra mussel/Asiatic clam Survey. November. PECO (Philadelphia Electric Company). 1984. Environmental Report - Operating License Stage.

Limerick Generating Station Units 1&2. 5 vols.

(RMC Environmental Services). 1984. Progress Report. Non-Radiological Environmental Monitoring for Limerick Generating Station 1979-1983. Prepared for i Philadelphia Electric Company. October.

~MC (RMC Environmental Services). 1985. Progress Report, Non-Radiological  :

f- ~~~~~~~~~~~n~~~~~~~r.Li~~ric~ Generating Statio_n_~8_~~~~paredfor_:~~lad_~I~~~__11 I G. RMC (RMC Environmental Services). 1986. Progress Report. Non-Radiological

! Environmental Monitoring for Limerick Generating Station 1985. Prepared for Philadelphia I

'H ~1~~r~~~~m~~;~;~;~i~b;~~vicesT- 1987. Progress-Report--;--Non-Radiological

[ Environmental Monitoring for Limerick Generating Station 1986. Prepared for Philadelphia L_ Electric Company. November. ______,,_,

I. RMC (RMC Environmental Services). 1988. Progress Report, Non-Radiological Environmental Monitoring for Limerick Generating Station 1987. Prepared for Philadelphia l Electric Company. ~eptember. ___ m_mU_

i J. RMC (RMC Environmental Services). 1989. Progress Report, Non-Radiological Environmental Monitoring for Limerick Generating Station 1988. Prepared for Philadelphia

, Electric Comj?any. December.

'Ir-K Describe any aquatic surveys conducted atthe Bradshaw Reservoir, the Wadesville Mine Pool and discharge channel, Bedminster Water Processing Facility, and the Still Creek Reservoir. For example, submit for docketing the response to information need (AQ-2 from

__ the Audit Information Needs)._" ____ 'm"mm ~

L. Describe the frequency that water is withdrawn from the SChU Y.,I,ki," River compared to o,t,her" ,

sources. For example, submit for docketing the response to information need (AQ-3 from the Audit Informa!L~n Needsl:_~m ___.__._mm.____ __ _mm_ ___,_om. m____ .

ENCLOSURE 2

-2

  • M. Describe the intake velocity, traveling screens, and any other operational procedures or structural designs that limits impingement and entrainment at the Point Pleasant Pumping Station on the Delaware River or at the pumping stations on the Bradshaw Reservoir, Still Creek Reservoir, or Wadesville Mine Pool. For example, submit for docketing the response to information need AQ-5 from the Audit Information Needs.

~-----------~

Describe any impingement or entrainment studies conducted at the Schuylkill Pumphouse, Perkiomen Pumphouse, or at the intakes on the Delaware River. For example, submit for i docketing the response to informatiql'l need (AQ-6 from the Audit InforrlJation NeedS):d O. Describe the extent of a thermal plume as a result of discharges to the Schuykill River. For '

example, submit for docketing the response to information need (AQ-7 from the Audit Informatior'lf\Jeeds). _m _ _ _ _ _ _ _ ******* _ __

P In the ER, LGS stated that three species of concern were identified in the Pennsylvania Natural Diversity Index (PNDI) search for LGS license renewal. However, it was unclear which three species LGS identified and where the species would occur on the LGS site and at the Bradshaw Reservoir. Please state these species (AQ-B from the Audit Information Needs.

I Q. In addition, discuss the potential location of the three PNDI species of concern on the LGS site and at the Bradshaw Reservoir and Pumphouse, as discussed on Page 2-44 of the ER (AQ-B from the Audit Informatign Needs.L).,-,---=---=--________ . . . . . _ __

f-::---:::--:-_--:---.----:_-=-_ _.---::-----:-:-:-_ _:--H"':yd_ro-:-I()~_ __.. . . . .~_

m A. Submit the last 5-years of monthly records for site groundwater production at all four site supply wells with o utage......Jp,--e_r_io_d_s_i_de_n_t_if_ie_d_._ _ _ _ _ _ _ _ _ _ - - - - - - - - - 1

" B.

2006 Hydr()geolog..i<:J!!vc:...:e::..:s:..::ti"",g...:..:a.::.:.tio::..:n...:..:s=-:-:R:..::e.c.po::..:rt:..::.,---_ _ _ _ _ _---:_ _ _ _ _ _ - - - - - - 1

! C. Provide a summary of the results of groundwater monitoring performed for tritium, strontium 90, and gamma-emitting radionuclides since 2006 (Le., groundwater protection program L- m.....:..:..::L::c.:.:.=..~_ _ _ _ _..__:--_ _ _-:-----::---=:---.,-.. _-:--:--_.___--.m __--,,-_--,-.._mmm -::___....*...........----1 D. NPDES permit renewal application for PA0051926 (minus Appendices A, Band C) and the l-.. administrative cO~p'It:lJ.~_ness letter received !~()m p~. DEF: _m _ ... ._ ..

1_ _ _ - - - - - - - _ _.. _mm_ ..Archaeological a~_d CuJtura! I!~sources .._ .. __ .._

A. Submit the references called out in Section 2.10 of the ER for archaeological surveys and the architectural and historical analysis of the Fricks Lock Historic District (CR-2 from the Audit Information Needs). Docketing should follow guidelines from NRC regarding sensitive cultural resources location information. When submitting cultural resources information, do not include I1J§lPs or coordinates of site location information. mm _ _ _ _

,B. Submit the 1983 letter from the SHPO/PHMC. This letter contains the SHPO findings regarding the determination of impacts to cultural resources from construction and operation of T-lines (CR-3 from the Audit Information Needs). Docketing should follow guidelines from NRC regarding sensitive cultural resources location information. When submitting cultural resources information, do not include ma s or coordinates of site location information.

C. Submit the list and description of the type of cultural resources that occur on the LGS site as a result of the CRGIS query (CR-4 from the Audit Information Needs). Docketing should follow guidelines from NRC regarding sensitive cultural resources location information.

When submitting cultural resources information, do not include maps or coordinates of site location information.

D. Submit a summary of the cultural resources management plan to NRC, This summary should contain the table of contents, a brief overview, and a description of how and when the management plan will be implemented (CR-7 from the Audit Information Needs),

Docketing should follow guidelines from NRC regarding sensitive cultural resources location information. When submitting cultural resources information, do not include maps or coordinates of site location information.

Terrestrial t:COIClav A Biodiversity Evaluation of Possum Hollow Run (completed under the direction of Exelon's B. 1973, Relative Abundance During Migration.

C. Exelon, 1979-1983, Limerick Generating Station Non-radiological Environmental Report, 984, Limerick Generating Station Non-radiological Report, 1985. Limerick Generating Station Non-radiological Environmental Report.

Exelon. 1986. Limerick Generating Station Non-radiological Environmental Report.

Exelon Generation. 2010, Limerick Generating Station Wildlife Management Plan, LGS-R 086.

H. Wildlife Habitat Council (WHC). 2006, Site Assessment and Wildlife Management

__ Opportunities. 100 pp. LGS-R-2!{L ________. _____ . ________ ...c------------:--.---.

I. In relation to reference WHC (2006) above, please provide the following for the indicated Wildlife at Work Projects:

a, Bird and bat project summary sheets, including location maps, data sheets, and notes

b. Frog project summary sheet c_ Documented Environmental Evaluation Walkdown/Assessment (for frog fence replacement) (Rep()I"t,A,R 01183399) _

i J. Submit for docketing the text responses to site audit information needs TE-1, TE-2, TE-3,

'li ... TE-4, TE-5, TE-6, TE-7, TE-8, and TE-9. These information needs can be found in NRC's

___ Environmental Audit Needs List dated November 4,2011 (ML11286A330). m m _ ._ _ _ _ _ _ . _ . _

February 28, 2012 Mr. Michael P. Gallagher Vice President License Renewal Projects Exelon Generation Company, LLC 200 Exelon Way Kennett Square, PA 19348

SUBJECT:

REQUEST FOR ADDITIONAL INFORMATION FOR THE REVIEW OF THE LIMERICK GENERATING STATION, UNITS 1 AND 2, LICENSE RENEWAL APPLICATION ENVIRONMENTAL REVIEW

Dear Mr. Gallag her:

By letter dated June 22, 2011, Exelon Generation Company, LLC (Exelon) submitted an application pursuant to Title 10 of the Code of Federal Regulations Part 54 (10 CFR Part 54), to renew Operating Licenses NPF-39 and NPF-85 for Limerick Generating Station, Units 1 and 2, for review by the U.S. Nuclear Regulatory Commission (NRC or staff). The NRC is reviewing the information contained in the license renewal application and the associated Environmental Report. The staff has identified, in Enclosure 1, areas where additional information is needed to complete the review. Enclosure 2 identifies certain documents reviewed during the November 7-10, 2011, site audit that the NRC request be submitted by Exelon for further review. Additional requests for additional information may be issued in the future.

As discussed with your staff, we request that you provide your responses no later than 30 days from the date of this letter. If you have any questions, please contact me at 301-415-2375 or by e-mail at leslie.perkins@nrc.gov.

Sincerely, IRA!

Leslie Perkins, Project Manager Projects Branch 2 Division of License Renewal Office of Nuclear Reactor Regulation Docket Nos. 50-352 & 50-353

Enclosures:

As stated cc w/encls: Listserv DISTRIBUTION:

See next page ADAMS Accession No'.. ML12041A443 SC:RERB: BC:RPB2:

OFFICE LA:DLR PM:RPS2:DLR DLR DLR NAME IKing LPerkins Almboden DWrona DATE 2/15/12 2128/12 2128/12 OFFICIAL RECORD COpy

Letter to M. Gallagher from L. Perkins dated February 28, 2012

SUBJECT:

REQUEST FOR ADDITIONAL INFORMATION FOR THE REVIEW OF THE LIMERICK GENERATING STATION UNITS 1 AND 2 LICENSE RENEWAL APPLICATION ENVIRONMENTAL REVIEW DISTRIBUTION:

HARD COPY:

DLR RF E-MAIL:

PUBLIC RidsNrrDlrResource RidsNrrDlrRpb1 Resource RidsNrrDlrRpb2 Resource RidsNrrDlrRerb Resource RidsNrrDlrRarb Resource RidsNrrDlrRapb Resource DLR_RPOB Resource RidsOpaMail RidsOgcMailCenter LPerkins DWrona RKuntz PBamford, DORL MSmith,OGC CKanatas, OGC EDiPaolo, SRI JAmbrosini, SRI (A)

NSieller, RI NMcNamara, RI DScrenci, RI NSheehan, RI

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