B15750, Provides NRC W/Proposed Changes to NPDES Permit CT0003263 for Hydrazine & Cooling Water Flows.Request to Amend Permit Submitted to State of CT Dept of Environ Protection on 960520
| ML20117M474 | |
| Person / Time | |
|---|---|
| Site: | Millstone  |
| Issue date: | 06/11/1996 |
| From: | Feigenbaum T, Scace S NORTHEAST NUCLEAR ENERGY CO., NORTHEAST UTILITIES SERVICE CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| B15750, NUDOCS 9606180559 | |
| Download: ML20117M474 (38) | |
Text
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107 seh street, Berun, cr 06037 Utilities System sonio.ve m s e comp.oy-P.O. Box 270 llartford, CT 06141-0270 - l (203) 665-5000 IN I I 1996 Docket No. 50-423 B15750 Re: EPP
'U. S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, DC 20555 ;
Millstone Nuclear Power Station, Unit No. 3 Notification of NPDES Permit Modification Request In accordance with Section 3.2 of the Millstone Unit No. 3 Environmental Protection Plan (EPP), Northeast Nuclear Energy Company ~ hereby provides the NRC with a copy of the proposed ,
changes to NPDES Permit CT0003263 for hydrazine and cooling water i flows. The request to amend the permit was submitted to the i State of Connecticut Department of Environmental Protection on !
May 20, 1996.
Should you have any questions, please contact Mr. Thomas Arcari at (860) 665-3713.
Very truly yours, l
NORTHEAST NUCLEAR ENERGY COMPANY ;
FOR: T. C. Feigenbaum ,-
Executive Vice President and ,
l Chief Nuclear Officer i 4
BY: cw S T E. Scacia 4- Vice President Nuclear Reengineering Implementation I
.cc: T. T. Martin, Region I Administrator V. L. Rooney, NRC Project Manager, Millstone Unit No. 3 ,
A. C.'Corne, Senior Resident Inspector, Millstone Unit No. 3 )
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107 Selden Street.Berhn, CT 06037 ,
gbg Utilities System Snhem twee se camp.or P.O.Bos370 Harderd CT061410270 ,
(203) 665 5000 May 20,1996 l
D09899 Mr. James Grier Principle Sanitary Engineer l Department of Environmental Protection
-79 Elm Street I Hartford, CT 06106 5127
Reference:
Permit (C04876), NPDES Permit CT0003263, dated December 14,1992. ,
Dear Mr. Grier Millstone Nuclear Power Station l
Modification Request - CT0003263 Hydrazine and Coolina Water Flows On May 7,1996 representatives of Northeast Nuclear Energy Company (NNECO) and Northeast Utilities Service Company (NUSCO) met with you to discuss the need for modifications to NNECO's Millstone ;
~
Station NPDES Permit, Reference. Pursuant to those discussions NNECO herein requests that Permit CT0003263 be modified as follows:
Hydrazine - DSNs 001B6. 001B9. 001C4. 001C6. 001C6 M. 001C9. 001B. and 001 C:
The current NPDES Permit, Reference, allows hydrazine discharge for Discharge Serial Numbers (DSNs) 001B9, 001C4 , 001C6, 001C6(b), and 001C9. Each DSN has a discharge concentration limit (mg/l) which is monitored (up pipe) before discharge to the quarry through its respective unit cooling discharge ,
pipe, DSN 001B and 001C. When calculated with individual flows, the permit authorizes a daily total l discharge of 76 kilograms (kg) of hydrazine to the environmental.
The Millstone Station Chemistry Department has determined that the Condensate Polisher Regeneration Sumps of Units II and III are a source of hydrazine not specifically defined in the permit. Therefore,
, NNECO is proposing these additional sources be identified and authorized for hydrazine discharge.
However, NNECO is not proposing an additional quantity of hydrazine be authorized, rather that by shifting control to the end of pipe (establish a mass limit for hydrazine at DSNs 001B and 001C only) the i
total permitted amount of hydrazine discharged can actually be reduced from 76 kg/ day to 65 kg/ day. A procedure to accomplish this through internal controls has been drafted and is included in Attachment A.
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Mr. James Grier D09899/Page 2 May 20,1996 i
Therefore, NNECO is requesting that Permit CT0003263 be modified identifying DSN 001B6 as a source i i
Sf hydrazine and that the discharge of hydrazine be permitted as follows:
D.SE Max Concentration / Batch Max Quantitv/Dav* .
001B6 125 mg/l" 001B9 75 mg/l 001C4 75 mg/l 001C6 125 mg/l" 001C6(b) 75 mg/l 001C9 75 mg/l i
i 001B 19 kg*
- 001C 46 kg*
- Maximum quantity per day from DSNs 001B6,001B9,001C4,001C6,001C6(b),
and 001C(9).
i " When discharging, two unit circulating water pumps must,be running.
1 In order to further minimize the discharge of hydrazine DSNs 001B1(a) and 001B8 will not discharge whenever DSNs 001B6 and 001B9 are discharging, and DSNs 001C4,001C6,001C6(b), and 001C9 will ,
' not discharge whenever DSNs 001Cl(a) & 001C8 are discharging. DSNs 001B1(a),001B8,001Cl(a),
- and 001C8 are specified to discharge on a frequency of only two to five times a year and therefore not pan of this modification request.
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Condenser Cooline Water Flows - DSNs 001 A. 001B. and 001C:
When the present NPDES permit was written in December 1992, the flows were changed from " average" ;
to " maximum," however, the average flow values from the former NPDES permit were inadvertently used l as maximum flows in the present permit. NNECO requests that the flows be changed to the following; 001A 680,000,000 gallons per day .
001B 870,000,000 gallons per day !
001C 1,400,000,000 gallons per day l
Enclosed is a completed Permit Application Form, a check in the amount of $500.00, and revised pages 1 .
and 2 of Attachment O for DSN's 001 A,001B, and 001C with the new flow rates.
l l As discussed at the May 7,1996 meeting, the modification to the cooling water flows requires NNECO to I give public notice ofits intent to modify the permit. Enclosed is a copy of the notice to be placed in the New London Dav. A cenified copy of the notice will be sent to you following its publication. l I
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Mr. James Grier D09899/Page 3 May 20,1996 ,
Should you have any questions, please call Mr. Thomas Arcari, Sr., NUSCO's Environmental Permitting Depanment, at 665-3713.
Very tmly yours, 3
NORTHEAST NUCLEAR EN}jRGY COMPANY
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b b} A D. B. Mill 6r, Jr. k
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Senior Vice President j[/
Att: Internal Control Procedure Encl: Fee Check - $500.00 Revised Form O's Public Nctice Permit Application Transmittal Form H
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f is i STATE OF CONNECTICUT j DEPARTMENT OF ENVIRONMENTAL PROTECTION Central Permit Processing Unit i .
! 79 Elm Street
/ Hartford, CT 06106-5127 l
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- Permit Application Transmittal Form 1
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- . . . '**. J spplication(s) and the associated feels). Print legibly or type. W 4 0FFU "
g g h 'iflWhWSMW;i@+y Part 1: Applicant Information MNdWIMMnW'#MG' l
l Applicant: unDTuratT wartran FNFRGY COMPANY l Company Name or. If applicent is en indevidual, write name in the follow 6ng format:
- ' Last Name Suffix Wr, PE, PhD)
Title (Mr, Ms, Dr) First Name Middle inMiel Malling Address: P. O. BOX .270
! . 0270 Zip Code: inAla1
! City / Town: HARTFORD state: CONN-Fax: f i phone: #860i 665-5000 ext.:
l D. B. MILLER, JR. ext.-
p%n. E60 665-5000 i
Contact Person:
SR. VICE PRESIDENT l D Check if any co applicants if so, attach additional sheet (s) with the required information as 4
t j supplied above.
l D federal D state D municipal Applicant is a(n) (check one): D individust 5 company l
If a Company, list company type (e.g., corporation, limited partnership, etc.) CORPORAT i
SAME l Applicant Billing Address:
State: Zip Code: -
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Phone: 8 i ext.:
! Billing Contact Name:
PartII: Project information MODIFY FLOW VALUES IN NPDFS pFRMTT ET00n N f Brief Project
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Effective Date:
Level of Use Subject MatterExpert:
Information Richard Robertson l
Millsto:e Unit 2 Chemistry Procedure Control of Hydrazine Discharges TABLE OF CONTENTS
- 1. P URP O S E . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
- 2. PREREQ UISITES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
- 3. PR E CAUTIO N S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 .
- 4. INSTRUCTI ONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 4.1 Calculating Estimated Hydrazine Mass for Planned Discharges . . 3 4.2 Using Another Unit's Allowable Hydrazine Discharge Mass . . . . . 6 4.3 Calculating Actual Hydrazine Mass Following Completion of a Plann ed Disch arge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
- 5. REVIEW AND SIGNOFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
- 6. REFEREN CES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
- 7.
SUMMARY
OF CHANGES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 ATTACHMENTS AND FORMS Attachment 1"Hydrazine Sources at Unit 2" . . . . . . . . . . . . . . . . . . . . . . . . 9 Chem Form 28021-1, "Hydrazine Discharge Worksheet" Chem Form 28021-2," Unit 2 Hydrazine Discharge Log" A
Level of Use V GTOP" nA /
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- 1. PURPOSE
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1.1 Objective l Provide instructions for managing NPDES discharges that contain bydrarine for the purpose of ensuring NPDES permit compliance.
1.2 Discussion NPDES limits have been established for hydrazine at the end of the pipe for Unit 2 cooling water discharge (DSN 001B). Because hydrazine may be discharged from up to 2 up-pipe independent sources, a discharge control program is required. NPDES monitoring is performed and j controlled by the Millstone Station Chemistry Department.
This procedure does not address the infrequent hydrazine discharges related to steam generator secondary side wet layup drainage discharge 2
(DSN 001B-1(a)) and condenser hotwell discharges (DSN 001B-8) 4 other than to prevent discharges of hydrazine from other up-pipe sources
- during these discharges.
l A permit system similar to that used for controlling radioactive discharge i is used to control hydrazine discharges. For each planned hydrazine discharge, the total hydrazine content (mass) is conservatively determined.
An evaluation is then made to determine if the planned discharge is within the daily hydrazine loading allotted for Unit 2. If the hydrazine loading
- from the planned discharge is within the limitation, Chemistry Supervision
< will authorize the discharge. NO HYDRAZINE DISCHARGE CAN TAKE
- PIACE WITHOUT CHEMISTRY DEPARTMENT AUTHORIZATION.
- Tb avoid Operations or Maintenance Department scheduling delays, work schedules involving hydrazine discharges should be communicated to Chemistry wellin advance of required discharges.
1
- 2. PREREOUISITES
^
2.1 Definillons 2.1.1 DSN - discharge serial number
- 3. PRECAUTIONS N/A 4
.I
- 4. INSTRUCTIONS 4.1 Calculating Estimated Hydrazine Mass for Planned Discharges l
NOTE This procedure does not address the infrequent hydrazine discharges related to steam encrator secondary side wet layup drainage discharge (DSN 001B-1( and condenser hotwell discharges (DSN 001B-8 except to forbid e additional discharge of hydrazme from i other up)-p,pe sources during a discharge from steam generator secondary side wet layup drainage (DSN 001B-1(a)) or the condenser hotwell (DSN 001B-8).
Chemistry 4.1.1 IE this is first hydrazine discharge for the week, OBTAIN blank Technician Chem Form 2802I-2 and RECORD week ending date.
NOTE 1/5-2 would be the second discharge made on January 5.
4.1.2 Refer'Ib Chem Form 2802I-2 and RECORD next sequential discharge number for the day using the format
" month / day - number discharge for the day."
4.1.3 OBTAIN blank Chem Form 2802I-1 and PERFORM the following:
- a. Refer To Chem Form 28021-2 and RECORD the following:
- Discharge number
- Tbtal hydrazine mass discharged so far today (kg)
- b. Refer Tb Attachment 1 and RECORD the following information for this discharge point:
- NPDES discharge serial number
- Name of discharge
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! c. RECORD the followinginformation:
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- Date and time 4
. Measured hydrazine concentration (ppm) 1
)
- Estimated discharge volume (gallons) i
- Number of circulating water pumps running I
- Number of service water pumps running
! d. Refer Tb equation 1 and ESTIMATE mass of hydrazine in this discharge (kg) and RECORD value:
j l e. ADD estimated hydrazine mass in this discharge to total hydrazine mass discharged so far today and RECORD as j estimated daily hydrazine total for this day.
i
) f. INITIAL form.
I 4.1.4 RECORD estimated mass of hydrazine in this discharge and estimated daily hydrazine total for this day on a Chem Form 28021-2.
i NOTE
- If the estimated daily hydrazine total is greater than 18.5 kg the discharge
- may be delayed until the next day or hydrazine mass may be requested from another unit on site under the following conditions
1 i + The other unit authorizes the use of part of their allowable discharge mass
! . The amount requested will not cause the other unit to exceed their daily hydrazine discharge limit
- The other unit records the amount given in their "Hydrazine Discharge log" I 4.1.5 IE estimated daily totalis greater than 18.5 kg, PERFORM 1 of the following steps:
- NOTIFY Chemistry Supervision and EXIT procedure.
'
- Refer *Ib Section 4.2 to use of part of another unit's allowable
- chemishon Supwvi hydrazine discharge mass, CP28021 Level of Use /L.
f- i_e Y.3 T top , fav Rev.0 l lnformation g =
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chemistry 4.1.6 IE estimited total hydrazine mass discharged on this day is 1:ss Technician than or equal to 18.5 kg.QR amount of estimated total hydrazine mass above 18.5 kg has been received from another unit on site, PERFORM the following: l
- a. IE bydrazine discharge rate is to occur at greater than 8.5 gpm, VERIFY at least 2 circulation water pumps are running.
- b. VERIFY that discharges from steam generator secondary side wet layup drainage (DSN 001B-1(a)) or condenser hotwells (DSN 001B-8) are not in progesss.
- c. SIGN and DATE Chem Form 28021-1 to authorize the discharge.
4.1.7 RECORD the number of circulation water pumps running on Chem Form 2802I-1.
4.1.8 WHEN discharge is completed, PERFORM the following:
- a. RECORD gallons discharged on Chem Form 2802I-1.
- b. Go To Section 4.3.
- End of Section 4.1 - ,
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4.2 Using Another Unit's Allowable Hydrazine Discharge Mass Cnemistry 4.2.1 OBTAIN permission from the other unit to use part of their Supervisfon allowable hydrazine discharge mass 4.2.2 REQUEST the other unit verify that the amount requested will not cause them to exceed their daily hydrazine discharge limit.
4.2.3 REQUEST the other unit PERFORM the following in their .
"Hydrazine Discharge Log:"
- RECORD NPDES discharge serial number
- RECORD unit requesting discharge mass in " Discharge point description" column
- RECORD amount requested in " Estimated hydrazine mass in this discharge" column
- ADD estimated hydrazine mass in this discharge to daily hydrazine total for this day and RECORD as estimated daily hydrazine total for this day.
- RECORD in remarks section that another unit used part of the allowable hydrazine discharge mass for this day 4.2.4 RECORD the following in remarks section on Chem Form 28021-2:
- Discharge number that used requested discharge mass
- Amount of hydrazine discharge mass taken from other unit
- Which unit hydrazine discharge mass was taken from 4
- End of Section 4.2 -
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1 Level of Use a_
W L _lt p CP 2802I Rw. 0 Information }%y_,,,,. % y%V %lP % 6of9
4.3 Calculating Acturl Hydrazine Miss Fall: wing C:mpletirs cf a Planned Discharge NOTE This procedure does not address the infrequent hydrazine discharges related to steam encrator secondary side wet layup drainage disc 2arge (DSN 001B-1(a and condenser hotwell discharges except to forbid e additional discharge of hydrazme(DSN 001B-8)from othe sources during a discharge from steam generator secondary side wet layup drainage (DSN 001B-1(a)) or the condenser hotwell (DSN 001B-8).
chemistry 4.3.1 Refer'Ib Equation 2 on Chem Form 2802I-1 and CALCULATE Technician hydrazine mass discharged (kg).
4.3.2 RECORD value calculated in step 4.3.1 on Chem Form 2802I-2.
4.33 ADD hydrazine mass discharged to daily hydrazine total for this day and RECORD as new daily hydrazine total for this day.
4.3.4 INITIAL Chem Form 28021-2 for this discharge.
4.3.5 IE hydrazine discharge mass was taken from another unit, PERFORM the following:
- a. SUBTRACT 18.5 kg from new daily hydrazine total for this day.
- b. REQUEST other unit PERFORM the following in their "Hydrazine Discharge Log"
. RECORD value from step 4.3.5 a. in "Hydrazine mass in this discharge" column
- ADD hydrazine mass in this discharge to daily hydrazine total for this day and RECORD as new daily hydrazine total for this day
- INITIAL for this discharge.
chemistry 4.3.6 SIGN and DATE completed Chem Form 2802I-1 signifying supervisor review of discharge.
- End of Section 4.3 -
Level of Use A T SToF' y MTHIN_K' .N.d ACT'_TEVis My CP 2802I Rev. 0 gnformation g g j,q g 7,f 9
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- 5. REVIEW AND SIGNOFF 1 l
5.1 The review and signoff for this procedure is located in 1 Chem Form 28021-1 and Chem Form 2802I-2.
- 6. REFERENCES 6.1 NPDES Permit
- 7.
SUMMARY
OF CHANGES 7.1 Original issue.
1 a 28021 Level of Use p. ig g 9 7 7
, Information j;;g pyq ppeg gjqk 8 of 9 I 4
Attachinent 1 Hydrazine Sources at Unit 2 (Sheet 1 ofi) ll.
ll NPDES DischarEt Hydrazine
- j Serial Neanber Nasme of Discharge Point Ilmiit
- i (pped
- . 001B-6 Unit No. 2 Condensate Polisher Regeneration Mstewater Neutralization Tank Discharge 125 Including System Floor Drains, Plant Equipment Washwater, and Boric Acid from Steam
- GeneratorThatment(TK10 & TK11) i
.i.- 001B-9 Unit No. 2 Non-contaminated Closed Cooling Water System Drainage Discharge 75 4 e i i n n r, ,, , ot , t_____________________________._________ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
Form Approved by Director - Millstone Unit 2 Effective Date PORC Mtg. No. 1 Hydrazine Discharge Worksheet Discharge Number: - I NPDES discharge serial number: Hydrazine limit: ppm i Discharge point description: s
; Sample date/ time: Measured hydrazine concentration: ppm ! Estimated discharge volume: gallons Number of pumps running: circulating water service water j Equation 1 estimated hydrazine mass , estimated discharge , measured hydrazine
- 3.785 E-06 liter ka in this discharge (kg) volume (gallons) concentration (ppm) gallon mg q
Estimated hydrazine mass . in this discharge: kg , e , Total hydrazine mass discharged so far today: kg
+
l Estimated daily hydrazine total for this day: kg i Equation 2 i
- Discharge volume
- gallons hydrazine mass , dischargevolume discharged (kg) (gallons) , measured hydrazineconcentration gallon mg (ppm l Hydrazine mass discharged: kg
- Tbtal hydrazine mass
! discharged so far today: kg
+
Daily hydrazine totalfor this day: kg I Chemistry Technician: Date: Chemistry Supervision Review: Date: Chem Form 28021-1 Rev. O Page1of1
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Effective Date: , \ l
! Level of Use Subject Matter Expert:
Information Richard Robertson
Attachm:nt 0: Discharga inform:ti:n - must be completed and submitted for eeth disch:rga Northeast Nuclear Energy Company j- Applicant Name: (:s indicated on the Permit Application TransmirtalForm) 4 Existing Permit Number: CT0003263 (if app!icable) 1 Ccmplete this attachment for each discharge and label each discharge consecutively starting with serial ! number 100 for discharges to a surface water; 200 for discharges to a POTW; and 300 for discharges to
! ground water. Attachment O is not required for applications to: discharge from land treatment non-point i source discharge systems (including septic tank leachfield systems), discharge from landfills, discharge from I ; agricultural activities or concentrated animal feeding operations, or discharge from concentrated aquatic l animal production f acilities. ]
l Part A: General Discharge information l 4 [ Discharge Serial Number 001A j 1. For discharges to a surface water only: l I a. The discharge enters the surface water (check one): O directly or 5 0 through a municipal storm sewer or [5 through other drainage systems (e.g., I swale) Please specify below:
- VIA DSN001
- b. Name of surface water body the discharge first enters: 1.onn Island Sound
- c. Surface water classification of the above listed water body:
SA f SA (presentifuture) i
- 2. For discharges to a POTW only:
- a. The discharge enters the POTW (check one): O directly hauled or O through a sanitary sewer or a combined sewer
}i
- b. Name of POTW the discharge first enters:
- c. Facility I.D. or location address of POTW:
i I tweeu of Wster :t - ;:- a Rev. 03/08/95 DEP PERD APP 107 1 of 21 l
. . _ _. _ ~' ^ ~
Part A: Gen:ral Disch:rg3 infcrmati$n (c:ntinued)-- t Disch:rgs S: rial Number 001A v
- 3. For discharges to ground water only:
l
- a. Groundwater classification of the site (present/ future) : /
I
- b. Name of surface water body in watershed area:
Surface water classification of the above listed water body: l (present/ future) / 680,000,000 680,000,000 spd
- 4. Average Daily Flow: god Maximum Daily Flow:
Declgn Flow: gpd Date discharge began or will begin: Existine Discharae i I 5. Is the discharge continuous? (3 Yes O No if yes, indicate: 24 Average number of hours per day of the discharge: 24 i Maximum number of hours per day of the discharge: i
- 6. For other than a continuous discharge (e.g., batch, intermittent, or seasonal discharges), indicate:
Average numb 6r of hours per event of the discharge: Maximum number of hours per event of the discharge: ) The duration and frequency of the discharge: l l i
- 7. Description of each specific activity or each process generating the discharge and identification of
- all types of waste generated by each process.
' Unit Discharge i l l I
- 8. For domestic sewage treatment plants, list the location of all discharges including, any plant bypasses, pumping station bypasses, and collection system overflows and bypasses.
( Suroeu of Water Management Rev. 03/os/95 Dep.ptmo. APP 107 2 of 21 l l
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C ~~~-.:ll_ L~^ .LT .- Attachment 0: Discharge Information - must be complet:d and submht:d for ccch Csch rgs Northeast Nuclear Energy Company gpplicant Name: (as indicated on the Permit Application TransmittelForm) Existing Permit Number: CT0003263 (if applicable) Ccmplete this attachment for each discharge and label each discharge consecutively starting with serial ; number 100 for discharges to a surface water; 200 for discharges to a POTW: and 300 for discharges to , grcund water. Attachment 0 is not required for applications to: discharge from land treatment non-point source discharge systems (including septic tank leachfield systems), discharge from landfills, discharge from agricultural activities or concentrated animal feeding operations, or discharge from concentrated aquatic cnimal production facilities. l Part A: General Discharge Information Discharge Serial Number 001B
- 1. For discharges to a surface water only:
- e. The discharge enters the surface water (check one): O directly or D through a municipal storm sewer or I$ through other drainage systems (e.g.,
swale) Please specify below: VIA DSN001 y
- b. Namu of surface water body the discharge first enters: Lono Island Sound
- c. Surface water classification of the above listed water body:
SA f SA l (present/ future) l-t l
- 2. For discharges to a POTW only:
l ! a. The discharge enters the POTW (check one): D directly hauled or i O through a sanitary sewer or a combined l 4 sewer
- b. Name of POTW the discharge first enters:
- c. Facility I.D. or location address of POTW:
i l i 4 Sureau of Water Menseement Mov. o3/o8/95 DEP-PERD APP-107 1 of 21
P rt A: Ccn:ral Disch:rg] Infcrmati n (ctntinu:d) . 0 Discharge Serial Number .
- 3. For discharges to ground water only:
- a. Groundwater classification of the site (present/ future) : __ /
- b. Name of surface water body in watershed area:
Surface water classification of the above listed water body: (present/ future) / gpd l 4. Average Daily Flow: 870.000.000 gpd Max mum Daily Flow: A70.nnn nnn f 870,000,000 opd Design Flow: Date discharge began or will begin: Existinti Discharoe
- 5. Is the discharge continuous? d Yes D No if yes, indicate:
24 Average number of hours per day of the discharge: Maximum number of hours per day of the discharge: 24 2 6. For other than a continuous discharge (e.g., batch, intermittent, or seasonal discharges), indicate: Average number of hours per event of the discharge: I Maximum number of hours per event of the discharge: The duration and frequency of the discharge:
- 7. Description of each specific activity or each process generating the discharge and identification of all types of waste generated by each process.
Unit Discharge i i 8. For domestic sewage treatment plants, list the location of all discharges including, any plant bypasses, pumping station bypasses, and collection system overflows and bypasses. Surosu of Water Menegement 2 of 21 Rev. o3/o8/95 DEP PERD APP 107
4 Atta hm:nt 0: Disch rge inform:ti:n - must be completed and submitted for each disch:rg3 Northeast Nuclear Energy Company f* Applicant Name: (es indicated on the Permit Application Transmittal Form) Existing Permit Number: CT0003263 (if applicable) A l C:mplete this attachment for each discharge and label each discharge consecutively starting with serial i number 100 for discharges to a surf ace water; 200 for discharges to a POTW: and 300 for discharges to 3 l ground water. Attachment 0 is not required for applications to: discharge from land treatment non point [ source discharge systems (including septic tank leachfield systems), discharge from landfills, discharge from ; 1 agriculturel activities or concentrated animal feeding operations, or discharge from concentrated aquatic
- [
cnimal production facilities. . l P;rt A: General Discharge information 4 2 piocharge serial Nurnber
- 1. For discharges to a surface water only:
l
- a. The discharge enters the surface water (check one): D directly or l
' D through a municipal storm sewer or i d through other drainage systems (e.g., 1
' swale) Please specify below:
VIA DSN001 i
- b. Name of surface water body the discharge first enters: 1.ona IslPnd Sound I c. Surface water classification of the above listed water body: I SA f SA (presentifuture) i l l
- 2. For discharges to a POTW only:
l ! a. The discharge enters the POTW (check one): O directly hauled or I I D through a sanitary sewer or a combined l sewer
- b. Name of POTW the discharge first enters:
- c. Facility I.D. or location address of POTW:
i 1 Sweeu et Water Managemem 1 of 21 Rev. 03/o8/s6 ! DEP PfRD-APP 107 e l
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Part Ai Ocn:rfl Disch:rgilnfctmati:n (ccritinuhd) . i UUR Dischrrge Scrial Numb:r 4 3. For discharges to ground water only:
- a. Groundwater classification of the site (present/ future) : /
l b. Name of surface water body in watershed area: l Surface water classification of the above listed water body: (present/ future) /
- 4. Average Daily Flow: 1,400,000,000 Maximum Daily Flow: 1.400.000.000 spd J
l gpd } 1.400.000,000 i Design Flow: god Date discharge began or will begin: _ Existino Discharce
- 5. Is the discharge continuous? G Yos O No if yes, indicate:
24 j Average number of hours per day of ths discharge: 24 ; Maximum number of hours per day of the discharge: i 6. For other than a continuous discharge (e.g., batch, intermittent, or seasonal discharges), indicate: ! Average number of hours per event of the discharge: - Maximum number of hours per event of the discharge: l The duration and frequency of the discharge:
~
- 7. Description of each specific activity or each process generating the discharge and identification of
, all types of waste generated by each process. ' Unit Discharge 1
- 8. For domestic sewage treatment plants, list the location of all discharges including, any plant
! bypasses, pumping station bypasses, and collection system overflows and bypasses.
4 I I 1 i Buromu of Water Management Rev. 03/os/s5 2 of 21 DEP-PERO. APP 107 s , y
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4 i-i f NOTICE OF PERMIT APPLICATION TOWN OF WATERFORD l Notice is hereby given that Northeast Nuclear Energy Company (the " Applicant") of ; l j P. O. Box 270, Hartford, CT has submitted to the Department of Environmental l Protection an application under Section 22a-430 of the Connecticut General Statutes for a permit to maintain a discharge of water to the waters of the state.
- Specifically, the applicant proposes to modify the cooling water flow amount in its i NPDES permit for the purpose of discharging water from the Millstone Nuclear Power Station. The proposed activity will take place at Millstone Point. The (
l proposed activity will potentially affect Long Island Sound. , i. l Interested persons may obtain copies of the application Northeast Nuclear Power Company, P. O. Box 270, Hartford, CT 06141-0270; Attn. Mr. D. B. Miller Senior
- Vice President. Phone (860) 665-5000. .
The application is available for inspection at the Department of Environmental i l Protection, Bureau of Water Management, Permitting, Enforcement and Remediation, j 79 Elm Street, Hartford, CT 06106-5127 (860-424-3018) from 8:30 to 4:30, Monday l' through Friday. i 4 4
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f l i Millstone Unit 3 Chemistry Procedure Control of Hydrazine Discharges l a TABT R OF CONTENTS 4 a
- 1. PURP O S E . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
- 2. PREREQUISITES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 ,
4
- 3. PRECAUTION S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
- 4. IN STRU CTI ON S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-i 4.1 Calculating Estimated Hydrazine Mass for Planned Discharges . . 3 :
l 4.2 Using Another Unit's Allowable Hydrazine Discharge Mass . . . . . 6 4.3 Calculating Actual H 4 Planned Discharge . ydrazine Mass Following Completion
....................................... 7 of a
- 5. REVIEW AND SIGNOFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 d
- 6. REFEREN CES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 i
4 7.
SUMMARY
OF CHANGES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 1 ; ATTACHMENTS AND FORMS Attachment 1"Hydrazine Sources at Unit 3" . . . . . . . . . . . . . . . . . . . . . . . . 9
- Chem Form 3802I-1,"Hydrazine Discharge Worksheet"
; 1 Chem Form 38021-2, " Unit 3 Hydrazine Discharge I.og"
) , i i 3 i i l g Level of Use 8m A
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CP3802I 3_ M ' NEW Rev.0 information k.N [M% 3% f#% 1 of 9 l
l ! 1. PURPOSE Objective ! 1.1 l Provide instructions for managing NPDES discharges that contain i hydrazine for the purpose of ensuring NPDES permit compliance. 1.2 Discussion NPDES limits have been established for hydrazine at the end of the pipe for Unit 3 cooling water discharge (DSN 001C). Because hydrazine may be discharged from up to 4 up-pipe independent sources, a discharge l control program is required. NPDES monitoring is performed and ( controlled by the Millstone Station Chemistry Department. This procedure does not address the infrequent hydrazine discharges related to steam generator secondary side wet layup drainage discharge (DSN 001C-1(a)) and condenser hotwell discharges (DSN 001C-8) other than to prevent discharges of hydrazine from other up-pipe sources during these discharges. j A permit system similar to that used for controlling radioactive discharges is used to control hydrazine discharges. For each planned hydrazine discharge, the total hydrazine content (mass) is conservatively determined. An evaluation is then made to determine if the planned discharge is within ) l the daily hydrazine loading allotted for Unit 3. If the hydrazine loading ! l from the planned discharge is within the limitation, Chemistry Supervision will authorize the discharge. NO HYDRAZINE DISCHARGE CAN TAKE PLACE WITHOUT CHEMISTRY DEPARTMENT AUTHORIZATION. I Tb avoid Operations or Maintenance Department scheduling delays, work schedules involving hydrazine discharges should be communicated to ) l Chemistry well in advance of required discharges. l
- 2. PREREOUISITES 2.1 Definitions 2.1.1 DSN - discharge serial number
- 3. PRECAUTIONS l N/A A 7,._la_ DIEWdL CP38021 Level of Use .
TOP' . INK T" Rev.0 lnformation jpg pg g9
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- 4. INSTRUCTIONS 4.1 Calculating Estimated Hydrazine Mass for Planned Discharges NOTE I This procedure does not address the infrequent hydrazine discharges related to steam nerator secondary side wet layup drainage dischuge (DSN 001C-1(a and condenser hotwell discharg DSN 001C-8 except to forbid e additional discharge of hydrazm,es e (from other up)-pipe sources durin ; a discharge from steam generator secondary side wet layup drainage (DSN 001C-1(a)) or the condenser hotwell (DSN 001C-8).
chemisty 4.1.1 IE this is first hydrazine discharge for the week, OBTAIN blank Technician Chem Form 38021-2 and RECORD week ending date. NOTE 1 1/5-2 would be the second discharge made on January 5.
- 4.1.2 Refer To Chem Form 38021-2 and RECORD next sequential discharge number for the day using the format
" month / day - number discharge for the day."
l 4.1.3 OBTAIN blank Chem Form 38021-1 and PERFORM the following: ; I
- a. Refer To Chem Form 3802I-2 and RECORD the followmg. l l
l
- Discharge number I
- Tbtal hydrazine mass discharged so far today (kg)
- b. Refer To Attachment I and RECORD the following information for this discharge point:
- NPDES discharge serial number
. Name of discharge
- Hydrazine limit in ppm l CP 3802I l Level of Use ay lnformation OP [ L d "' CTb_[ _SV M INK" Rev. 0 l pq jjg 3 of 9 i
I l
- c. RECORD the following information:
- Date and time i
- Measured hydrazine concentration (ppm) i
- Estimated discharge volume (gallons)
- Number of circulating water pumps running
'
- Number of service water pumps running
- d. Refer'Ib equation 1 and ESTIMATE mass of hydrazine in l this discharge (kg) and RECORD value:
- e. ADD estimated hydrazine mass in this discharge to total hydrazine mass discharged so far today and RECORD as 1 estimated daily hydrazine total for this day.
r
- f. INITIAL form.
4.1.4 RECORD estimated mass of hydrazine in this discharge and l i estimated daily hydrazine total for this day on 4 Chem Form 38021-2. i NOTE l If the estimated daily hydrazine totalis greater than 45,5 kg the discharge may be delayed until the next day or hydrazine mass may be requested ! from another unit on site under the following conditions:
- The other unit authorizes the u::e of part of their allowable i discharge mass
!
- The amount re uested will not cause the other unit to exceed their daily hydrazine discharge limit
!
- The other unit records the amount given in their "Hydrazine
- Discharge Log" l 4.1.5 IE estimated daily total is greater than 45.5 kg, PERFORM 1 of l the following steps
- NOTIFY Chemistry Supervision and EXIT procedure.
"
- Refer 'Ib Section 4.2 to use of part of another unit's allowable z chemistry supervision hydrazine discharge mass.
orm ton I 1 ] _ . . .
I chemistry 4.1.6 E estimated total hydrazine mass discharged on this day is less ; Trennician than or equal to 45.5 kg.QR amount of estimated total hydrazine 4 mass above 45.5 kg has been received from another unit on site, PERFORM the following:
- a. E hydrazine discharge rate is to occur at greater than 8.5 gpm, VERIFY at least 2 circulation water pumps are running.
- b. VERIFY that discharges from steam generator secondary side wet layup drainage (DSN 001C-1(a)) or condenser hotwells (DSN 001C-8) are not in progesss.
- c. SIGN and DATE Chem Form 38021-1 to authorize the discharge.
4.1.7 RECORD the number of circulation water pumps running on Chem Form 38021-1. 4.1.8 WHEN discharge is completed, PERFORM the following:
- a. RECORD gallons discharged on Chem Form 38021-1.
- b. Oo To Section 4.3.
- End of Section 4.1 -
f 6 i l 1
- 1 I
Level of Use a_. 3L, dt._ CP 3802I l Information 4.-[ H!T y y Rn. 0 j f% W( FM S of 9 ; 1 I I
4.2 Using Another Unit's Allowable Hydrazi:e Discharge M:ss
" 4.2.1 OBTAIN permission from the other unit to use part of their Chemist supervis 7on allowable hydrazine discharge mass 4.2.2 REQUEST the other unit verify that the amount requested will not cause them to exceed their daily hydrazine discharge limit.
\
4.2.3 REQUEST the other unit PERFORM the following in their "Hydrazine Discharge Log:" l
- RECORD NPDES discharge serial number
- RECORD unit requesting discharge mass in " Discharge point description" column
- RECORD amount requested in " Estimated hydrazine mass in this discharge" column
- ADD estimated hydrazirie mass in this discharge to daily hydrazine total for this day and RECORD as estimated daily hydrazine total for this day.
- RECORD in remarks section that another unit used part of the allowable bydrazine discharge mass for this day 4.2.4 RECORD the following in remarks section on Chem Form 38021-2:
- Discharge number that used requested discharge mass
- Amount of hydrazine discharge mass taken from other unit
- Which unit hydrazine discharge mass was taken from 1
- End of Section 4.2 - l 1
l l l l Level of Use T 63TOP HINK' N,_d_ ACF k_ N,d 'naview CP 3802I Rev. 0 l lnformation g g g g 3 ,, , 1
j l l 4.3 Calculating Actual Hydrazine Mass Following Completion of a Planned i Discharge NOTE
- This procedure does not address the infrequent hydrazine discharges !
related to steam nerator secondary side wet layup drainage discharge l (DSN 001C-1(a and condenser hotwell discharg DSN 001C-8 ,
- except to forbid e additional discharge of hydrazm,es e (from other up)-pipe ;
sources during_a discharge from steam generator secondary side wet layup drainage (DSN 001C-1(a)) or the condenser hotwell (DSN 001C-8). Chemistry 4.3.1 Refer Tb Equation 2 on Chem Forra 3802I-1 and CALCULATE - Technician hydrazine mass discharged (kg). i 4.3.2 RECORD value calculated in step 4.3.1 on Chem Form 38021-2. i 4.33 ADD hydraziae mass discharged to daily hydrazine total for this day and RECORD as new daily hydrazine total for this day. i 4.3.4 INITIAL Chem Form 38021-2 for this discharge. 4.3.5 IE hydrazine discharge mass was taken from another unit, j PERFORM the following: 1 a. SUBTRACT 45.5 kg from new daily hydrazine total for this day.
- b. REQUEST other unit PERFORM the following in their
- "Hydrazine Discharge Log"
' . RECORD value from step 4.3.5 a. in "Hydrazine mass in this discharge" column i 4
- ADD hydrazine mass in this discharge to daily hydrazine total for this day and RECORD as new daily hydrazine total for this day
- INITIAL for this discharge.
Chemistry 4.3.6 SIGN and DATE completed Chem Form 38021-1 signifying supervisor review of discharge. 4
- End of Section 43 -
Level of Use _lL_,. k, _ L. CP 38021 lnformation y %y% f%p 0 f% s 7% 70f9
- 5. REVIEW AND SIGNOFF 5.1 The review and signoff for this procedure is located in Chem Form 3802I-1 and Chem Form 38021-2.
- 6. REFERENCES 6.1 NPDES Permit
- 7.
SUMMARY
OF CHANGES 7.1 Original issue. i r 4 information fpg pg Jg ?$3 /7% s of 9 i __
Attachment 1 'I Hydrazine Sources ct U;lt 3 (Sheet 1 of1) NPDES Discharge Hydrazine Serial Number Name of Discharge Pbint Limit .l (ppm) ' 001C-4 Unit No. 3 Makeup Demineralizer Backwash Discharge Including Feedwater System Wet 75 Lay-up Drainage and Auxiliary Boiler Stack Drainage (MWNS) 001C-6 Unit No. 3 Condensate Polisher Regeneration Wastewater Neutralization Thnk Discharge 125 l Including Plant Equipment Washwaters (TK10 & TK11) l! Unit No. 3 Hot Water Heating System Drainage (HVH) 75 t, 001C-6(b) Uint No. 3 Auxiliary Boiler Blowdown Sump Discharge (ABD) 75 {j l 001C-9 Unit No. 3 Non-contaminated Closed Cooling Water System Drainage Discharge 75 >! ! I; l! jovei
@natim of use 44ff ;g );gg pgq ag E721 9 og 9 lt
l Form Appr:ved by Director - Millstone Unit 3 Effective Date PORC Mtg. N3. Hydrazine Discharge Worksheet Discharge Number: NPDES discharge serial number: Hydrazine limit: ppm Discharge point description: Sample date/ time: Measured hydrazine concentration: ppm Estimated discharge volume: gallons Number of pumps running: circulating water service water Equation 1 estimated hydrazine mass , estimated discharge , measured hydrazine
- 3.785 E-06 liter kg in this discharge (kg) volume (gallons) concentration (ppm) gallon mg Estimated hydrazine mass in this discharge: kg Tbtal hydrazine mass discharged so far today: kg l
+
Estimated daily hydrazine total for this day: kg Equation 2 , Discharge volume: gallons
, measured hydrazine liter kg hydrazine mass , dischargevolume discharged (kg) (gallons) concentration (ppm) a 3*785 E-06 gallon mg Hydrazine mass discharged: kg Total hydrazine mass discharged so far today: kg
+ .
Daily hydrazine total for this day: kg Chemistry Tbchnician: Date: Chemistry Supervision Review: Date: Chem Form 38021-1 Rev.O Page1of1 l l
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