ML20073H435

Forwards Ecological Survey of Delaware River in Vicinity of Point Pleasant,Pa Jul 1972 - Dec 1973

ML20073H435
Person / Time
Site:	Limerick
Issue date:	04/13/1983
From:	Bradley E PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	Schwencer A Office of Nuclear Reactor Regulation
Shared Package
ML20073H437	List: ML20073H435 ML20073H448
References
NUDOCS 8304180601
Download: ML20073H435 (2)

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PHILADELPHIA ELECTRIC COMPANY 2301 M ARKET STREET P.O. BOX 8699 PHILADELPHI A. PA.19101 EDW ARD G. B AU ER. J R.

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GUGENE J. BR ADLEY assoceave semamak Coupesth DON ALD BLANNEN April 13,1983 RUDOLPH A. CHILLEMI O. C. KIRK H ALL T. H. M AM ER CORN ELL PAUL AUERBACH asstavant esmemmL counsak CDW ARD J. CU LLEN. J R.

THOM AS H. MILLER J R.

G R ENE A. McM EN N A assistaser cousess6 Mr. A. Schwencer, Chief Docket Nos. 50-352 Licensing Branch No. 2 50-353 Division of Licensing U. S. Nuclear Pegulatory Cmmission Washington, D.C. 20555

Subject:

Limerick Generating Station, Units 1 and 2 Pequest for Infonnation frcm Environmental Engineering Branch

Dear Mr. Schwencer:

Enclosed per the March 25, 1983 telecon request by Mr. C. Hickey of your Environmental Engineering Branch is cne copy each of the following documents:

1. An Ecological Survey of the Delaware River in the Vicinity of Point Pleasant, Pennsylvania, July 1972 - Deccrnber 1973, D. C. Smith and P. L. Harmon, February, 1974.

2. Intter, J. S. Kemper to R. C. Haynes, NRC Region I, dated March 18, 1983.

Very truly yours, M n b hr 71/b E.f.Bradley EDH/cw/X-1 cc: See Attached Service List 1

()V t 8304180601 830413 PDR ADOCK 05000352 A PDR

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! cc: Judge Lawrence Brenner (w/o enclosure)

! Judge Richard F. Cole (w/o enclosure)

Judge Peter A. Morris (w/o enclosure) l Troy B. Conner, Jr., Esq. (w/o enclosure)

Anr. P. Hodgdon (w/o enclosure)

Mr. Frank R. It2 nano (w/o enclosure)

Mr. Robert L. Anthony (w/o enclosure)

Mr. Marvin.I. Iewis (w/o enclosure)

Judith A. Dorsey, Esq. (w/o enclosure)

Charles W. Elliott, Esq. (w/o enclosure)

Mr. Alan J. Nogee (w/o enclosure)

Robert. W. Adler,' Esq. (w/o enclosure)

Mr. Thcmas Gerusky (w/o enclosure) l Director, Pennsylvania Dnergency Managenent Agency (w/o enclosure)

Mr. Steven P. Hershey (w/o enclocere)

James M. Neill, Esq. (w/o enclosure)

Donald S. Bronstein, Esq. (w/o enclosure)

Mr. Joseph H. White, III (w/o enclosure)

Walter W. Cohen, Esq. (w/o enclosure)

Robert J. Sugarman, Esq. (w/o enclosure)

Rodney D. Johnson (w/o enclosure)

! Atcnic Safety and Licensing Appeal Board (w/o enclosure)

I Atanic Safety and Licensing Board Panel (w/o enclosure)

Docket and Service Sectio'n (w/o enclosure) i l

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O PHILADELPHIA ELECTRIC COMPANY 2301 MARKET STREET d P.O. BOX 8699

' '# d I I'dI PHILADELPHIA. PA.19101 misi sai.a so2 MAR 18 t383

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Mr. Ronald C. Haynes, Director, Region i

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United States Nuclear Regulatory Commission 631 Park Avenue King of Prussia, PA 19406

Subject:

NRC Office of Inspection and Enforcement Letter Dated: January 21, 1983 Re: Request for Additional Information Re: IE Bulletin No. 81-03 " Flow Blockage

! of Cooling Water to Safety System Components by ,

i Corbicula sp. (Asiatic Clam) and Mytilus sp. (Mussel)" '

Limerick Cenerating Station Units 1 and 2 Dockets Nos. 50-352 and 50-353 File: GOVT 1-1 (Bulletin 81-03)

Dear Mr. Haynes:

The subject letter requests the follov.'.ng additional information rela tive to item 3.9 of Bulletin No. 81-03:

1. The results of studies conducted since the initial response to the Bulletin, j

. 2. The details of the program developed for preoperational monitoring.

1) Philadelphia Electric Company initiated a program in the summer of 1982 to determine the spatial distribution of Corbicula in relation to water supply sources for Limerick Generating Station (LGS) in the Dela-ware and Schuylkill Rivers. Sampling was conducted at irregular inter-vals in August, September, and October, 1982. On the Delaware River j sat)1es were collected from 35 locations spaced at 2 to 4-mile int e rvals frcm Pt. Pleasant, PA (river mile 157) downstream to the Commodore Barry l

B ridge , Ches te r, PA (river mile 88). Schuylkill River samples were collected from 19 locations at 2 to 4-mile intervals from LCS (river mile 48) downs tream to the mouth (river mile 0). At each location samples were collected from both shorelines and midstream dependent on

. substrate type and access. At sample locations in which water was I

greater than 2.5 feet deep, samples were collected with a pipe dredge (6" diameter x 18" long). The pipe was dragged along the bot tom and filled with sediment which was sieved through 1/8-inch mesh wire screen.

In shallow uater areas, sediment was collected with a shuvel and sieved as above, or organisms were collected by hand from the bottom or shoreline.

Any bivalve mollusk encountered was preserved in isopropanol and identified in the laboratory.

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r Corbicula was present on the Delaware River from Trenton, NJ (river mile 137, approximately 20 miles downstream of Pt. Pleasant) to the Benjamin Franklin Bridge in Philadelphia (river mile 105). An empty shell was found 3 miles downstream at the Walt Whitman Bridge (river mile 102). On the Schuylkili kiver Corbicula was present f rom j us t upstream of the Norristown Dam (river mile 24) to just downstream of the Fairmount Dam in Philadelphia (river mile 8).

2) A preoperational program similar to that described for 1982 will be undertaken starting in the summer of 1983 on the Schuylkill and Delaware Rivers. Additional emphasis will be placed on determining abundance of Corbicula in areas where they are now knuwn to occur in these rivers.

Additionally, the mainstream Perkiomen Creek will be sampled from upstream of the mouth of the East Branch Perkiomen Creek to downstream of Grater-ford, PA to determine presence or absence of Corbicula. A benthic macrotnvertebrate monitoring program to be undertaken on the entire East Branch Perkiomen Creek will provide information on the species composition and abundance of all benthic macroinvertebrates, including Corbicula if it is present.

Sincerely,

E E /Gf HFH/dg/L/9 Copy to

Edward L. Jordan, Director  ;

Division of Engineering and Quality Assurance

. Of fice of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, D.C. 20555

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l S. K. Chaudhary, U.S. NRC Site Resident Inspector, Limerick Generating Station I

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