ML20077H723

Responses to Request for Production of Documents on Contentions 75 & 83/84.Certificate of Svc Encl

ML20077H723
Person / Time
Site:	Harris
Issue date:	08/05/1983
From:	Carrow H CAROLINA POWER & LIGHT CO.
To:	Eddleman W EDDLEMAN, W.
Shared Package
ML20077H718	List: ML20077H717 ML20077H723
References
ISSUANCES-OL, NUDOCS 8308110244
Download: ML20077H723 (12)

Text

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g. O UNITED STATES OF AMERICA Z Ti moc81983>b;j NUCLEAR REGULATORY COMMISSION G g, BEFORE THE ATOMIC SAFETY AND LICENSING BO O #C 5 g In the Matter of / I M

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CAROLINA POWER & LIGHT COMPANY )

AND NORTH CAROLINA EASTERN ) Docket Nos. 50-400 OL MUNICIPAL POWER AGENCY )- 50-401 OL

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(Shearon Harris Nuclear Power Plant, )

Units 1 & 2) )

APPLICANTS' RESPONSE TO WELLS EDDLEMAN'S REQUEST FOR PRODUCTION OF DOCUMENTS (CONTENTIONS 75 and 83/84)

Pursuant to 10 C.F.R. S2.741(d), Applicants hereby respond to Wells Eddleman's Request for Production of Documents as contained in Wells Eddleman's General Interrogatories and Interrogatories on Contentions 75 and 83/84 to Applicants Carolina Power & Light et al. (Third Set) by stating that the documents identified in Applicants' Answers to Wells Eddleman's GeneralInterrogatories and Interrogatories on Contentions 75and 83/84 to Applicants (Third Set) will be made available to Mr. Eddleman for inspection and copying in the following manner:

The requested documents will be made available at the corporate offices of Carolina Power & Light Company,411 Fayetteville Street Mall, Raleigh, North Carolina, 27602. The documents will be made available during Carolina Power & Light Company business hours (or such other mutually agreeable time). Appeintments to inspect the documents may be arranged by telephoning Hill Carrow at 836-6839, at least 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> before the requested inspection. Applicants will maintain the requested documents assembled in Carolina Power & Light Company offices available for inspection by Mr. Eddleman, for a reasonable time (i.e., through September 5,1983), after which they will be returned to their place of origin.

8308110244 830805 PDR ADOCK 05000400 G PDR

J Inspected documents which Mr. Eddleman wishes to have copied will be reproduced by Carolina Power & Light Company on a schedule compatible with other demands for duplicating equipment. A Carolina Power & Light Company employee will be available during the inspection in order to receive any requests for copying. Copies of such documents will then be furnished to Mr. Eddleman upon payment of 7 cents per page, to meet Carolina Power & Light Company's cost of reproduction.

AAM<J Hill Carrow CAROLINA POWER & LIGHT COMPANY Post Office Box 1551 Raleigh, North Carolina 27602

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(919) 836-6839 Attorneys For Applicants: - ---- -~ --

Thomas A. Baxter ~

John H. O'Neill, Jr.

SHAW, PITTMAN, POTTS & TROWBRIDGE 1800 M Street, N. W.

Washington, D. C. 20036 (202) 822-1148 Richard E. Jones Samantha Francis Flynn CAROLINA POWER & LIGHT COMPANY Post Office Box 1551 Raleigh, North Carolina 27602 (919) 836-6517 Dated: August 5,1983 l

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RECEIVED [g UNITED STATES OF AMERICA NUCLEAR REGULATORY COMMISSION 9.- AUG E ""3 > Fy h.

l BEFORE THE ATOMIC SAFETY AND LICENSING BOAR y 3E [gQ* .p *

/ SECY NHC c,N ( .

In the Matter of ) / Ilio

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CAROLINA POWER & LIGHT COMPANY )

AND NORTH CAROLINA EASTERN MUNICIPAL )

POWER AGENCY )

) Docket Nos. 50-400 OL (Shearon Harris Nuclear Power Plant, ) 50-401 OL Units 1 & 2) )

)

)

CERTIFICATE OF SERVICE I hereby. certify that copies of " Applicants' Answers to Wells Eddlamen's General Interrogatories and Interrogatories on Contentions 75 and 83/84 to Applicants Carolina Power & Light Company, g al. (Third Set)", " Applicants' Response to Wells Eddleman's Request for Production of Documents", and Certification of Counsel were served this 5th day of August,1983 by deposit in the United States mail, first class, postage prepaid, to the parties on the attached Service List.

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')LA G Hill Carrow Attorney Dated: August 5,1983 e

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SERVICE LIST James L. Kelley, Esquire John D. Runkle, Esquire Atomic Safety and Licensing Board Conservation Council of North Carolina U. S. Nuclear Regulatory Commission 307 Granville Road Washington, D. C. 20555 Chapel Hill, North Carolina 27514 Mr. Glenn O. Bright M. Travis Payne, Esquire Atomic Safety and Licensing Board Edelstein and Payne U. S. Nuclear Regulatory Commission Post Office Box 12643 Washington, D. C. 20555 Raleigh, North Carolina 27605 i Dr. James H. Carpenter ~Dr. Richard D. Wilson Atomic Safety and Licensing Board 729 Hunter Street l U. S. Nuclear Regulatory Commission Apex, North Carolina 27502-Washington, D. C. 20555 Mr. Wells Eddleman Charles A. Barth, Esquire 718-A Iredell Street Myron Karman, Esquire Durham, North Carolina 27705 Office of Executive Legal Director U. S. Nuclear Regulatory Commission Thomas A. Baxter, Esquire Washington, D. C. 20555 John H. O'Neill, Jr., Esquire

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Shas, Pittman, Potts & Trowbridge r

Docketing and Service Section 1800 M Street, N.W.

Office of the Secretary Washington, D. C. 20036 U. S. Nuclear Regulatory Commission ,:

Washington, D. C. 20555

' Dr. Phyllis Lotchin 108 Bridle Run Mr. Daniel F. Read, President

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Chapel Hill, North Carolina 27514 Chapel Hill Anti-Nuclear '

Group Effort _. .

Bradley W. Jones, Esquire Post Office Box 524 U. S. Nuclear Regulatory Commission

, Chapel Hill, North Carolina 27514 Region 11 101 Marietta Street Dr. Linda Little Atlanta, Georgia 30303 Governor's Waste Management Board 513 Albemarle Building Karen E. Long, Esquire 325 Salisbury Street Staff Attorney Raleigh, North Carolina 27611 Public~ Staff

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North Carolina Utilities Commission Ruthanne G. Miller, Esquire Post Office Box 991 Atomic Safety and Licensing Raleigh, North Carolina 27601 Board Panel U. S. Nuclear Regulatory Commission '

Washington, D. C. 20555

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• cpal e Carolina Power & Light Company July 10, 1981 / '

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Mr. J. P. O'Reilly m Region II United States Nuclear Regulatory Commission k DocKnrxc a c

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101 Marietta Street, hv Atlanta, Georgia 30303 q'p i SHEARON HARRIS NUCLEAR POWER PLANT UNIT NOS. 1, 2, 3, AND 4 DOCKET NOS. 50-400, 50-401, 50-402, AND 50-403 IE BULLETIN 81-03

Dear Mr. O'Reilly:

As requested by IE Bulletin 81-03, " Flow Blockage of Cooling Water to Safety System Components by Corbicula sp. (Asiatic Clam) and Mytilus sp.

(Mussel)," Carolina Power & Light Company has evaluated the problem and its applicability to the Shearon Harris Nuclear Power Plant (SHNPP). It has been determined that the potential for biofouling exists since the Asiatic clam is present in the vicinity of the station. The results of seven consecutive years of field biological monitoring programs indicate Corbicula fluminea is present in the Cape Fear River. Corbicula fluminea has also invaded portions of Buckhorn Creek, which is the primary water source for the main reservoir.

At present, field observations indicate that these clams inhabit areas of Buckhorn Creek downstream of the main dam. There is no indication that the clams are present in any area of the main reservoir nor are they present in any inflowing headwater streams.

The mussel (Mytilus sp.) does not inhatit any local environments and is probably restricted to coastal habitats which begin many river-miles downstream from the SHNPP.

Corbicula fluminea is expected to eventually be introduced into the Shearon Harris Reservoir; however, any introduction of clams should be detected by the ongoing benthic macroinvertebrate monitoring program. Once a clam population is detected in the reservoir, macroinvertebrate monitoring efforts will be increased in the area of plant intake structures. This monitoring will determine clam population dynamics including spawning periods and organism densities. These studies will give a clear indication of potential biofouling problems due to high clam densities near plant intake structures. At that time, power plant personnel will be informed that the potential for biofouling exists.

... . . . . . , . _ . , ..m . , . - .... , _ . . . , , ,

411 Fayetteville Street

• P. O. Box 1551

• Raleigh N. C. 27602

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. O O Since at present SHNPP is still in the construction phase and there is no indication that the clams inhabit the reservoir, a control program other than environmental monitoring has not yet been finalized. Several control .

measures are being evaluated and upon detection of Corbicula fluminea in the l reservoir, any protective actions deemed to be necessary will be acted upon.  !

If you have any further questions on this subject, please contact our staff.

Yours very truly, W/ '

-t E. E. dtley ExecutiveVicePresident}

Power Supply and Engineering & Construction ONH/je (N#64) _ _ _

cc: Director Office of Inspection and Enforcement U. S. Nuclear Regulatory Commission-Washington, D. C. 20555 _

Mr. E. Licitra (NRC)

E. E. Utley, having been first duly sworn, did depose and say that the information contained herein is true and correct to his own personal knowledge or based upon information and belief.

5Ad?m.Y ~YffMdlu18e '

Notary Publ tN /g My commission expires: October 4, 1981 3 / ".- e 3 o O T A a y ,g 3 5 i. #UBLIC j j

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C9&L Carolina Power & Light Company MAR 251983 SERIAL: LAP-83-86 Mr. James P. O'Reilly, Regional Administrator y #

United States Nuclear Regulatory Commission S Region II 101 Marietta Street, NW, Suite 3100 arcEnzo h

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Atlanta, GA 30303 -

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AUG 81983 > -i. .

DocErmo a J

% EERDc5 BnA,ica p SHEARON HARRIS NUCLEAR POWER PLANT UNIT NOS. 1 AND 2 limas spt Cv ,,, /

DOCKET NOS 50-400 AND 50-401 N IE BULLETIN NO. 81-03

Dear Mr. O'Reilly:

As requested by IE Bulletin No. 81-03, " Flow Blockage of Coo, ling Water to Safety Components by Corbicula sp. (Asiatic Clam) and Mytilussp.

(Mussel) " dated December 10, 1982, and in accordance with the schedule set forth in our February 8,1983 letter, Carolina Power & Light Company hereby submits, in the attachment to this letter, responses to the requested additional information for the closing of the issue.

If you have any further questions on this subject, please advise.

Yours very truly, Original Signed Bv WALTER J. HURFOk0 W. J. Hurford Manager Technical Services PS/ mag (6436P3A)

Attachment cc:

Mr. N. Prasad Yadambi (NRC)

Mr. G. F. Maxwell (NRC-SHi&P)

Mr. J. P. O'Reilly (NRC-RII) 411 rayittaville Street

• P. O. Box 1551

• Raleigh. N. C. 27602

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- bec: Mr. H. R. Banks Mr. L. I. Loflin Mr. D. L. Bensinger Mr. R. L. Mayton, Jr.

Mr. C. S. Bohanan Mr. S. McManus Mr. J. R. Bohannon Mr. C. H. Moseley, Jr.

Mr. C. Carmichael (2) Mr. R. M. Parsons i

Mr. N. J. Chiangi Mr. J. J. Sheppard Mr. A. B. Cutter Mr. Sheldon D. Smith Dr. T. S. E11eman Mr. M. A. Weaver (Westinghouse) '

Mr. G. L. Forehand Mr. J. L. Willis Mr. J. F. Garibaldi (Ebasco) Mr. R. C. Yates Dr. W. T. Hogarth Nr. T. A. Baxter (Shaw, Pittman, Dr. J. D. E. Jeffries Potts & Trowbridge)

Mr. I. A. Johnson File: HI/A-2D File: H-X-0550 S

C REQUEST FOR ADDITIONAL INFORMATION IE BULLETIN NO. 81-03 t

1.(4A)

No discussion of instrusion potential if and when Corbicula sp.

becomes established in reservoir. Please assess and respon~d .

If and when Corbicula sp. becomes established in the Harris main and/or auxiliary reservoirs, the potential will exist for adults, larvae, and shells to be entrained into the service water and fire protection systems of the SHNPP. However, various design and operating conditions are expected to reduce the probability of flow 1

l reduction or blockage to safety system components by_Corbicula sp.

No flow reduction or blockage problems are expected to result in the normal Service Water System (SWS). This system is designed to withdraw (CWS) at service water the cooling f rom the closed-loop Circulating Water System towers. Because the physical and chemical climate of the cooling towers will be unfavorable to Corbicula sp.

habitation; and because the service water is designed to be _

chlorinated to maintain a 0.5 ppm residual chlorine concentration at the heat exchanger outlet, _Corbicula sp. intrusion of the SWS is not probable.

The EmerSency Service Water System (ESWS) will withdraw water from the auxiliary main reservoir.reservoir or, if that source is unavailable, from the From either source, the emergency service water will be pumped to the normal SWS.

Because the ESUS pumps will be operated monthly, no accumulation of silt or _Corbicula sp. will occur in the ESWS pipelines f rom the intake structure to the junction with the normal SWS.

Corbicula sp. does not attach, so any young adults that grow from larvae that settle there will be flushed through the system before growing large enough to reduce or block service water flow.

The greatest potential for flow reduction or blockage in the SWS will result f rom the accumulation of silt and _Corbicula adults and/or shells in the ESUS pump suction bays behind the travelling screens.

The travelling screens with a mesh size of 3/8" will prevent other adults or shells from entering the ESWS intake bays. If significant buildups occur, the adults or shells would be picked up by tt2 ESWS pumps suction; however,1/16" self cleaning strainers are ' located at the discharge of the ESWS pumps to preclude passage into the ESWS.

Two factors which may reduce the likelihood of high Corbicula sp.

densities in the intake bays are the water depth and the monthly operation of the service water pumps. At normal water level, the depth at the ESWS intakes on the auxiliary reservoir and main reservoir will be 60 feet and 30 feet, respectively.

Low oxygen levels at these depths during summer months should inhibit occurrence '

and growth of Corbicula sp.

The monthly operation of the ESUS pumps should minimize the buildup of silt in the intake bays thus minimize f avorable substrate for Corbicula larvae to settle and grow into adults.

The potential intrusion by Corbicula sp. into the Fire Protection System (FPS) may be possible by makeup of water containing larvae.

The larvae could-settle in low points of the system where they may grow into adults.

Also, as described for the ESWS, Corbicula adults and/or shells would be entrained f rom possible accumulations behind travelling screens at the intake bays on the auxiliary reservoir.

Any adults or shells that enter or develop in the FPS could then reduce or block flow through small pipes, valves, or sprinklers.

Because the FPS pumps will be operated weekly for testing and because portions of the system will be flushed as of ten as quarterly; Corbicula larvae, and possibly adults and shells, would be entrained.

1. (4 b) No information provided regarding planned control or detection methods. Please respond and describe inspection procedures and control technology under consideration.

Because the potential for Corbicula sp. intrusion of the SWS, ESUS, and FPS exists, the following inspection procedures and control measures will be planned:

SWS and ESWS

a. During normal refueling outages, selected service water heat exchangers will be inspected for the presence of_Corbicula sp.

b.

The SWS will be chlorinated as described in 1.(4a) above if Corbicula sp. or other biofouling is t uspected or found in the SWS.

c.

Once Corbicula sp. are found in the reservoir during regular environmental monitoring of the benthic macroinvertebrate populations, periodic sampling of the intake bays behind the travelling screens will be initiated.

d. If significant densities of adults or accumulation of shells are found in the intake bays, periodic treatment of the bays with oxygen scavenging chemicals [e.g. , sodium-metabisulfate (Na2253 0 )] will be initiated as required to control the Corbicula sp.

FPS a.

Low point blowdown drains will be used to periodically inspect the FPS for evidence of Corbicula sp.

b.

Once Corbicula sp. are known to inhabit the auxiliary reservoir, chlorination units will ba installed at the intake pumps.

Chlorine would be injected consistant with pump operation.

c.

When Corbicula sp. are found in the auxiMary reservoir, the FPS intake bay behind the travelling screens will be inspected and treated as described for the ESWS intakes in (c) and (d) above.

2. (4 b) No information provided regarding status of construction. Please respond and, if any systems have been filled, describe inspection procedures and results.

All fire protection systems have been filled and pressurized as needed to protect equipment already installed. With the exceptian of fire protection, no piping associated with those systems of interest

are presently filled at SHNPP. These systems may be filled for hydrostatic testing as early as May of 1983, and subsequently 'oe flushed, drained, and thoroughly inspected no earlier than January 1984.

3.a Provide last sampling date and results.

Quarterly sampling of the benthic community developing in the Harris Reservoir was conducted during February, May, August, and November 1982. No_Corbicula sp. were found in any of the samples reservoir.

collected indicating that the clams are not in the main

--- C Sampling planned for 1983 will include two new stations. One will be in the main reservoir near the mouth of the cooling tower makeup intake channel, and the other will be in the auxiliary reservoir near the mouth of the emergency service water intake channel.

3.e See 1.(4b) above for planned _ corrective and preventive actions.

(6436PSA mag)

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