ML20093K858

Informs NRC of Changes to NPDES Permit PA0051926

ML20093K858
Person / Time
Site:	Limerick
Issue date:	10/11/1995
From:	Hunger G PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9510250045
Download: ML20093K858 (4)

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.PECO ENERGY ricof gne,,

965 Chesterbrook Boulevard Wayne, PA 19087 4691 October 11,1995 l

Docket Nos. 50-352 50-353 License Nos. NPF-39 NPF-85 NPDES Permit No. PA0051926 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555

Subject:

Limerick Generating Station, Units 1 and 2 Changes to National Pollutant Discharge Elimination System Permit Gentlemen:

This letter is being submitted in accordance with the Limerick Generating Station (LGS), Units 1 and 2, Environmental Protection Plan (EPP) Section 3.2, which stipulates that the NRC shall be notified within 30 days following the date of approval of a change to the National Pollutant Discharge Elimination System (NPDES) permit.

By letter dated September 12,1995, the Pennsylvania Department of Environmental Resources (PA DER) approved PECO Energy Company's request to revise LGS NPDES Permit No.

1 PA0051926 to allow the use of chemical additives PEC16, PEC17, Copper Trol CU-1, and Powerline 3461 in the cooling towers and spray pond servicing LGS, Units 1 and 2. These chemical additives are replacements for previously approved agents, and will be used to help control corroslon and prevent scaling and silt deposition in the secondary cooling water systems' heat exchangers at LGS. A copy of the PA DER letter approving this change to the s LGS NPDES permit is attached. The NRC was previously notified of our request to revise the NPDES permit to use these chemical additives by letter dated August 2,1995.

If you have any questions or require additional information, please do not hesitate to contact us.

Very truly yours, f

G. A. Hunger,fi Jr.

Director - Licensing Attachment cc:

T. T. Martin, Administrator, Region I, USNRC (w/ attachment)

N. S. Perry, USNRC Senior Resident inspector, LGS, (w/ attachment)

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9510250045 951011 f.

PDR-ADOCK 05000352

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COMMONWEALTH OF PENNSYLVAN!A DEPARTMENT OF ENVIRONMENTAL RESOURCES Please note our new name-DEPARTMENT OF ENVIRONMENTAL PROTECTION DEP Lee Park, Suite 6010 555 North Lane Conshohocken.PA 19428 September 12,1995 Southeast Regional Office 610 832 6130 Fax 610 832 6259 Mr. Robert M. Matty, Jr.

Engineer, Environmental Affairs PECO Energy Company

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2301 Market Street P.O. Box 8699 Philadelphia, PA 19101-8699 j

Re:

IW-NPDES Permit PA0051926 Limeric Generating Station Limerick Township Montgomery County

Dear Mr. Matty:

This is in response to your August 2,1995 letter requesting approval to use chemical additives PEC16, PEC17, Copper Trol CU-1, and Powerline 3461 in the cooling tower and spray pond at the subject facility. The wastewater containing these products will be discharged at an average flow of 14.27 mgd to the Schuylkill River through Outfall 001.

The company has proposed to use PEC16 and PEC 17 in the cooling tower. These products are intended to replace the existing chemical Betz Powerline PEC 12. Copper Trol CU-1 will be used in the cooling tower intake screens for 5 to 15 minutes, every 3 to 6 weeks and in the heat exchanger every 1 to 3 months to control corrosion. This product is intended to replace existing chemical Betz Powerline PEC-03.

Betz Powerline 3461 will be applied at the emergency spr'ay pond pumphouse to prevent scale formation and sitt deposition in the heat exchangers.

Recycled Paper h An Equal Opportunity / Affirmative Action Employer

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\\ September 12, l')95 We have completed our review of the information submitted by you and hereby approve your request subject to the following conditions:

1. The approved chemical additives and usage rates are as follows:

NAME USAGE RATE (lbs/ day )

AVERAGE MONTHLY MAXIMUM DAILY Betz Powerline PEC-16 160 320 q

Betz Powerline PEC-17 1450 2850 i

Betz CopperTrol CU-1 400 5600 Betz Powerline 3461 800 3850 i

2. The discharge containing chemical additives shall be managed by the permittee to ensure that toxic effects in the receiving stream are prevented. Usage rates shall be limited to the minimum amount necessary to accomplish the intended purposes of chemical addition.

3. Accurate records of usage (name of additive, quantity added, date added) of the approved chemical additive and blowdown discharge volumes must be maintained on the Chemical Additive Reporting Form (copy attached) and be submitted to the Department.

4. The NPDES permit will be revised to include this approval upon permit renewal.

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, September 12,1995 If you have any questions, please contact Sohan Garg of our staff.

Sincerely, f

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j oseph A.Feola

>/ Regional Manager Water Management

Enclosure:

Chemical Additive Reporting Form cc:

Mr. Newbold Mr. O'Neil DRBC EPA Limerick Township Permits & Compliance 30 (DF)248

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