ML17333A701
| ML17333A701 | |
| Person / Time | |
|---|---|
| Site: | Cook  |
| Issue date: | 12/09/1996 |
| From: | Fitzpatrick E ILLINOIS POWER CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| AEP:NRC:1208T, NUDOCS 9612160092 | |
| Download: ML17333A701 (9) | |
Text
CATEGORY 1 REGULATC ZNFORMATZON DZSTRZBUTZON OSTEM (RZDS)
ACCESSION NBR:9612160092 DOC.DATE: 96/12/09 NOTARIZED:
NO DOCKET ¹ FACIL:50-315 Donald C.
Cook Nuclear Power Plant, Unit 1, Indiana M
05000315 50-316 Donald C.
Cook Nuclear Power Plant, Unit 2, Indiana M
05000316 AUTH.NAME AUTHOR AFFILIATION FITZPATRICK,E.
Illinois Power Co.
RECIP.NAME RECIPIENT AFFILIATION Document Control Branch (Document Control Desk)
SUBJECT:
Forwards change of process notification which increases capacity of reverse osmosis unit 6 adds dry layup method for plant heating boiler.
DISTRIBUTION CODE:
C001D COPIES RECEIVED:LTR ENCL SIZE:
TITLE: Licensing Submittal: Environmental Rept Amdt
& Related Correspondence E
NOTES'ECIPIENT ID CODE/NAME HICKMAN,J INTERN ILE CE 01 EXTERNAL: NOAC COPIES LTTR ENCL 1
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1 RECIPIENT ID CODE/NAME, NUDOCS-ABSTRACT RGN3 DRS/RSB NRC PDR COPIES LTTR ENCL 1
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NOTE TO ALL "RIDS" RECIPIENTS:
PLEASE HELP US TO REDUCE WASTE!
CONTACT THE DOCUMENT CONTROL DESK/
ROOM OWFN SD-5(EXT. 415-2083)
TO ELIMINATE YOUR NAME FROM DISTRIBUTION LISTS FOR DOCUMENTS YOU DON'T NEED!
TOTAL NUMBER OF COPIES REQUIRED:
LTTR 7
ENCL 6
Indiana Michigan Power Company 500 Circle Drive Buchanan, Ml 491071395 l&fWAiM MfCHISAN PWM December 9,
1996 Docket Nos.:
50"315 50-316 AEP:NRC:1208T U. S. Nuclear Regulatory Commission ATTN: Document Contxol Desk Washington, D.
C.
20555 Gentlemen:
Donald C.
Cook Nuclear Plant Units 1 and 2
NPDES CHANGE OF PROCESS NOTIFICATION The attached notification is forwarded for your information pursuant to Appendix B
of Donald C.
Cook Nuclear Plant Environmental Technical Specifications.
The subject concerns a
change of process notification for our NPDES permit.
The changes increase the capacity of a reverse osmosis unit and add a dry layup method for the plant heating boiler.
Should you have any questions or concerns regarding this notification, please contact Walter T. MacRae at 616-697-5067.
Sincerely, Vice President Attachment cc:
A. A. Blind A. B. Beach MDEQ -,DW 6 RPD
'NRC Resident Inspector R. Padgett
'Phi2ih0092 'Pbi209 PDR ADQCK 050003i5 P
PD+R
ATTACHMENT 1 TO AEP:NRC:1208T COOK NUCLEAR PLANT NPDES PERMIT NO. MI0005827
American Electric Pow Cook Itudear Plant
-~ One Cook Place Bridgrnan, Ml 49106 616 465 5901 AAIERICAÃ ELECTRIC POWER Mr. Fred Morley, Surface Water Quality Division Michigan Department of Environmental Quality 621 North Tenth St.
P.O. Box 355 Plainwell, Michigan 49080 November 14, 1996
Subject:
Cook Nuclear Plant NPDES Permit No. MI0005827
Dear Mr. Morley:
As required by Part I.A.1.d and Part II.A.2 of the Donald C. Cook Nuclear Plant National Pollutant Discharge Elimination System (NPDES) Permit No. MI0005827, we are providing a "change of process" notification. These changes willincrease the capacity of a Reverse Osmosis (RO) unit, and add a dry layup method for the plant heating boiler.
R verseO sis RO U i Cook Nuclear Plant is in the process of installing an increased capacity RO unit for the Makeup water system, to replace the rental unit now in place. The permanently installed RO unit will be placed in operation within the next year, and willresult in environmental and production improvements.
The process water flowwillbe approximately 100,000,000 gallons per year (200 gpm),
whereas the current RO produces 78,840,000 gallons per year (150 gpm). The new unit willreduce the number of required Makeup Plant resin regenerations and the amount of chemicals (sulfuric acid and sodium hydroxide) used for regerieration. The associated regeneration waste stream directed to Outfall 00D willbe reduced.
The amount of reject water directed to Outfall 00G willincrease to approximately 32,000,000 gallons per year (60 gpm) when the new RO unit is in operation. The reject water is approximately 1/3 ofthe output flowand is water temperature dependent.
The reject water from the RO unit consists of concentrated Lake Michigan water and a small amount ofsulfuric acid to inhibitscale buildup on the membranes.
Adding sulfuric acid optimizes RO efficiency by reducing the influent pH to approximately 5.0. We estimate approximately 11,000 gallons per year (1.3 gallons per hour) of66'Be'ulfuric acid will be added to the RO intake to achieve this pH.
During periodic cleaning of the RO membranes, approximately 15 lbs. (1 00 wt. %) Sodium Hydroxide (NaOH) will be used per cleaning. We estimate that the membranes willbe cleaned approximately four times per year with a dilute sodium hydroxide solution
consisting of about 2 gallons of 50% sodium hydroxide diluted with 1600 gallons ofwater.
Approximately 8 gallons of 50% NaOH will'be used per year. Other solid chemicals such as detergent (Tide) and sodium bisulfite will be used in similar quantities as they have been used in the present RO unit. Present use rate for detergent (Tide) is approximately 15 Ibs/year, and the use rate for sodium bisulfite is also approximately 15 Ibs/yr.
Chemical usage is summarized in the following table:
Chemical Use Summary for Current RO unit and Proposed RO unit, Chemical Current Amount/Year Proposed Amount/Year Sulfuric Acid Sodium Hydroxide (50% solution)
Detergent - Tide (Dry)
Sodium Bisulfite (Dry) 8200 Gallons (35% H2SO4) 120 gallons 15 lbs.
15 lbs.
11,000 gallons (66'e'2SO4) 8 gallons 15 lbs.
15 lbs.
The Cook Nuclear Plant willevalutate a new dry layup procedure for the plant heating boiler. When the boiler willnot be run for extended periods, itwillbe placed in a dry layup condition instead of in the normal wet layup configuration. Ifthe evaluation is acceptable, this willresult in less hydrazine and ethanolamine (ETA) discharged to Outfall 00D.
(During the evaluation, wet layup conditions as described in the NPDES Perm'pplication willstill be used when the boiler is shut down for periods less than 5 days.)
During normal shutdown procedures, the boiler willbe drained via Outfall 00C until empty.
An additional volume of approximately 6,000 gallons of 15 ppm ETA, and 0.15 ppm hydrazine willbe drained to the circulating water forebay. The boiler is then dried by supplied air. Implementation ofthis layup procedure may have an annual savings of up to 32,000 gallons of approximately 50 ppm ETA, and 400 ppm hydrazine being drained to Outfall 00D.
The followingtable represents potential yearly chemical reduction/savings ifthe dry layup program for the heating boiler proves acceptable.
Heating Boiler Chemical Discharge Reduction Proposal
~
(Based on the reduction of boiler wet layup drains from 30/yr to 10/yr)
Chemical ETA (Betz 1440)
Hydrazine (Betz 1205)
Current Amount/Year 194.3 gallons 55.6 gallons Proposed Amount/Year 190.4 gallons 20.4 gallons Should you have any questions on our plans, please contact me at 616/465-5901, extension 1153.
Sincerely,
?
John Garison Environmental Compliance Supervisor c:
M. Fields - MDEQ Plainwell S. Heaton - MDEQ Lansing D. Mackenzie - Taylor - MDEQ Lansing T. Unseld - MDEO Plainwell
NPDES Permit No. MI0005827 November 14, 1996 I certify under penalty of law that I have personally examined and am familiar with the information submitted on this and all attached documents; and based on my inquiry of those individuals immediately responsible for obtaining the information, I believe the submitted information is true, accurate and complete.
I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment.
D.M.Fitzg r d
Environmen al Affairs Manager
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