ML20090H178

Forwards 831006 Comments Submitted to Sc Dept of Health & Environ Control Clarifying Points of Thermal Effects Study Plan as Contained in Fes

ML20090H178
Person / Time
Site:	Summer
Issue date:	10/24/1983
From:	Dixon O SOUTH CAROLINA ELECTRIC & GAS CO.
To:	Harold Denton Office of Nuclear Reactor Regulation
References
NUDOCS 8310280005
Download: ML20090H178 (4)

Text

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SOUTH CAROLINA ELECTRIC & GAS COMPANY mar oppucE va COLUMeiA, south CAROLINA 29218 i

o. W. DixoN, JR.

VICE PRESiOENT October 24, 1983 suCu.. o,E.*7,ou.

1 Mr. Harold R.

Denton, Director Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, D.C.

20555

Subject:

Virgil C. Summer Nuclear Station Docket No. 50/395 Operating License No. NPF-12 Thermal Effects Study Plan Clarification

Dear Mr. Denton:

In compliance with Appendix B of the Virgil C. Summer Nuclear Station Operating License, South Carolina Electric and Gas Company hereby submits a copy of our letter to the South Carolina Department of Health and Environmental Control (SC DHEC) clarifying points of the Thermal Effects Study Plan as contained in the Final Environmental Statement.

Very truly y rs, O. W.

xon WRM:OWD/fjc cc:

V.

C. Summer T.

C. Nichols, Jr./O. W. Dixon, Jr.

E. H. Crews, Jr.

E.

C.

Roberts H. N. Cyrus J.

P.

O'Reilly General Managers O. S. Bradham N.

E.

Clark C.

A.

Price A.

R. Koon C.

L. Ligon (NSRC)

G. J. Braddick D. J.

Richards NRC Resident Inspector J. B. Knotts, Jr.

NPCF File (Lic./Eng.)

AA WW 8310280005 831024 PDR ADOCK 05000395 D

PDR

f?

SOUTH CAROL;NA ELECTRIC & GAS COMPANY rost errect sox vu

~

COLUMBI A. S. C. 29218 Octcber 6, 1983 Mr. Gary Grant South Carolina Department of Health and Envirorsoental Control 2600 Bull-Street ColumM a, S. C.

29201

Dear Mr. Grant,

This letter is a sumary of the meeting between representatives of South Carolina Electric 'and Gas Coupany, DnInes and more, and the South Carolina Department of Bealth and Environ =+21 Control which was held in your office on Septer6er S,1983. In attanaance were the following persons:

Gary Grant, Se m Pr Doug Darr, SCmK:

Tcm Singson, DSM Terry White, D&M Chuck Zinneman, D&M Steve Ser, SCE&G The above referenced meeting was held to clarify certain matters concerning the Thermal Effects Study Plan, the 316(b) Demonstration Study Plan, and the l

related NPIES Pemit (i SC0030856) for virgil C. Sumer Itaclear Station. The

-itans and dates listed below were discussed and concurrance obtained by the L

parties involved.

l

[

Duration of Studies Tharmal Effects 2nitoring - Two years of operational data is required for the thermal effects study. The operational portion of the themal effects study is scheduled to begin at cczmercial operation of Virgil C. R==r Naclear Station. For the purposes of these monitoring prograns camercial operation is specified as October 1,1983. Virgil C. Smzoer Nuclear Station achieved ini'tial criticality on October 22, 1982 and has been operating l.

at substantial power levels, disregarding outsges, since late 1982 (30% in late 1bvember 1982, 50% in mid-December 1982).

l It is anticipated that data frcm the preccreercial operating period will be adequate for parcial fulfillnent of the two j

j year nonitoring requirement. Tae South Carolina Departnent of Bealth and Environnemal Control (SCDEEC) will review the 1983 l

data results to determine if they may be used in this manner.

I l

l

2. Gary Grant cctober 6,1983 age 2 316(b) -

'Ihis study win begin October 1,1983 (sarrpling win begin within 2 weeks of October 1) and continue for 1 year. ' mis

' phase of the 316 studies win meet both inpingment and entraiment requirements.

Thermal mpping - The postoperatioral Thbrmal mpping will continue for 1 year comencing on october 1,1983. Sampling periods will coincide as closely as possible to the sarrpling pericas used in the preoperational thermal mapping program (quarterly).

Tha = 1 Effects Study Ichthyoplankton net - The net size stated in the Tha=1 Effects Study Plan and 316(b) Demonstration Study Plan is 0.5 neter diamater with 505 micrcmeter resh. The nets used for the preoperatioral and preccmrercial study pericd are 0.75 meter with 363 micrcmeter mesh. The 0.75 meter /363 micrcmeter mesh nets will be utilized for the remainder of the study period.

Aquatic merophytes - Questions were raised as to the extent of " quantitative" sampling. No changes in sampling methochlogy are neces-l sary.

Macroinvertebrates - Dames & Moore win increase the neber of sanples frcm a total of 3 to a total of 4 per location to provide repli-cates at both the littoral and profundal zones.

Conections by dip nets and hand picking, as stated in Tho m 1 Effects Study Plan, are not ne ssary and will not be made.

Rotonnning -

Tharmal Effects Study Plan lists " Station B" (Fairfield Pmpaa Storage tailrace) as one of the sites where roten-l cning is to be corducted. With the change frcm a creek to a tailrace environment rotenoning is inpractical. Roten-oning will not be corducted at this station.

Reporting

- SCIEEC will review the 1982 Biological tenitoring Be;:n4.

prior to issuance to de' amine if it can be used as the Final Preoperational Repcat.

Six month reports will be subnitted during the operation-al phase of the study and are due on the following dates:

July 1,1984 (October 1,1983 - March 31,1984)

January 1, 1985 (April 1, 1984 - September 30, 1984)

July 1,1985 (Octc6er 1,1984 - March 31,1985) l January 1,1986 (April 1,1985 - Septe:nber 30, 1985)

These dates may be changed depending on the applicability of the 1983 data.

Tne last six nonth report will serve as the final report for preoperational and operatiore.1 l

phases of the study.

L

o.

le. Gary Grant Cctober 6, 1983 Page 3 316(b) Study Ichthyoplankton net - The size of net used will be 0.75 meter /363 micrczneter mesh.

Traveling Screens

- one screen (cf six) will be rardomly chosen to be sanpled for each 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> sampling period assuming that preliminary sanples indicate an even fish distribution across all six screens. All screens will be washed prior to each 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> sangling period.

WJng

- The Final Report is dus February 1,1985.

This letter lias been reviewad and concurrence olf*M by representatives of the Soud Carolina Departnent of Bealth and Enviroen61 Control and the attending Danes & Maore technical consultants.

Sincerely, Stephen E. Sunner, Superviscr tion-Radiological Envgos. - L1 Prcgrams Approved By: /h W. R. Baehr, Mimager Corparate Bealth Physics and Environmental Control t

Approved By:

~

M. B. Phi-M, Group Manager NJclear Engineering and Licensing mec cc:

D. A. Nauman W. E. It> ore /E. M. Watts C. Zimmersan, D&M T. Singson, D&M T. White, D&M NP2 File 10.5060

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