ML19350E459

Forwards IE Bulletin 81-03, Flow Blockage of Cooling Water to Safety Sys Components by Corbicula Sp (Asiatic Clam) & Mytilus Sp (Mussel). Written Response Required

ML19350E459
Person / Time
Site:	Beaver Valley, Millstone, Calvert Cliffs, Peach Bottom, Salem, Nine Mile Point, Indian Point, Oyster Creek, Hope Creek, Pilgrim, Susquehanna, Seabrook, Limerick, Vermont Yankee, Haddam Neck, Ginna, Sterling, Yankee Rowe, Maine Yankee, FitzPatrick, 05000363, 05000516, 05000517, Shoreham, Crane
Issue date:	04/10/1981
From:	Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
To:	Arthur J, Counsil W, Curtis N, Daltroff S, Chon Davis, Dunn C, Finfrock I, Groce R, Hovey G, Hukill H, Kay J, Kemper J, Lempges T, Lundvall A, Maier J, Martin T, Morisi A, Otoole J, Pasternak R, Pollock M, Rhode G, Schneider F, Rich Smith, Tallman W, Woolever E, Zulla S BALTIMORE GAS & ELECTRIC CO., BOSTON EDISON CO., CONNECTICUT YANKEE ATOMIC POWER CO., CONSOLIDATED EDISON CO. OF NEW YORK, INC., DUQUESNE LIGHT CO., JERSEY CENTRAL POWER & LIGHT CO., LONG ISLAND LIGHTING CO., Maine Yankee, METROPOLITAN EDISON CO., NIAGARA MOHAWK POWER CORP., NORTHEAST NUCLEAR ENERGY CO., PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC, PENNSYLVANIA POWER & LIGHT CO., POWER AUTHORITY OF THE STATE OF NEW YORK (NEW YORK, PUBLIC SERVICE CO. OF NEW HAMPSHIRE, Public Service Enterprise Group, ROCHESTER GAS & ELECTRIC CORP., VERMONT YANKEE NUCLEAR POWER CORP., YANKEE ATOMIC ELECTRIC CO.
References
NUDOCS 8106230108
Download: ML19350E459 (5)

Text

&#4 Gentlemen:

The enclosed IE Bulletin No. 81-03, " Flow Blockage of Cooling Water to Safety System Components by CORBICULA SP. (Asiatic Clam) and MYTILUS SP. (Mussel),"

is forwarded to you for action.

A written response is required.

In order to assist the NRC in evaluating the value/ impact of each Bulletin on licensees, it would be helpful if you would provide an estimate of the manpower expended in conduct of the revies and preparation of the report (s) required by the Bulletin.

Please estimate secarately the manpower associated with corrective actions following identification of problems through the Bulletin.

If you desire addittanal information regarding this matter, please contact this office.

Sincerely, ce H. Grier e

Cirector

Enclosure:

1.

IE Bulletin No. 81-03 with 1 attachment CCNTACT:

S. D. Ebneter (215-337-5283) l l

l l

l l

I 8106280 \\@

n---

C.

'C LIST OF HOLDERS OF A NUCLEAR PCWER REACTOR CONSTRUCTION PERMIT

~' RECEIVING IE BULLETIN NO. 81-03 (FCR ACTION)

Baltimore Gas and Electric Company Docket Nos. 50-317 ATTN:

Mr.' A. E. Lundv-il, Jr.

50-318 Vice Presiderc, Supply P. O. Box 1475 Baltimore, Maryland 21203 Boston Edison Company M/C Nuclear Occket No. 50-293 ATTN: Mr. A. V. Morisi Nuclear Operations Support Manager 800 Boylston Street Boston, Massachusetts 02199 Connecticut Yankee Atomic Power Company Dockat No. 50-213

. ATTN:

Mr. W. G. Counsil Vice President - Nuclear Engineering and Operations P. O. Box 270 Hartford, Connecticut 06101 Consolidated Edison Company of Docket Nos. 50-03 New York, Inc.

50-247 ATTN: - Mr. John O'Toole Assistant Vice President - Nuclear Affairs and Quality Assurance 4 Irving Place New York, New York 10003 Duquesne Light Company Docket No. 50-334 ATTN:

Mr. C. N. Dunn Vice President Onerations Division 435 Sixth Avenue Pittsburgh, Pennsylvania 15219 Jersey Central Power and Light Company Docket No. 50-219 ATTN:

Mr. Ivan R. Finfrock, Jr.

Vice President Oyster Creek Nuclear Generating Station P. O. Box 388 Forked River, New Jersey 08731

2 Maine Yankee Atomic Power Company Docket No. 50-309 ATTN: Mr. Robert H. Grace Senior Engineer-Licensing 1671 Worcester Road Framingham, Massachusetts 01701 Metropolitan Edison Company Docket No. 50-289 ATTN: Mr. H. D. Hukill Vice President and Director of TMI-l P. O. Box 480 Middletown, Pennsylvania 17057 Matropolitan Edison Company Docket No. 50-320 ATTN: Mr. G. K. Hovey Vice President and Director of TMI-2 P. O. Box 480 i

Middletown, Pennsylvania 17057 Niagara Mohawk Power Corporation Occket No. 50-220 ATTN:

Mr. T. E. Lempges Vice President Nuclear Generatt,

300 Erie Boulevard West Syracuse, New York 13202 Northeast Nuclear Energy Company Docket Nos. 50-336 ATTN:

Mr. W. G. Counsil 50-245 Senior Vice President - Nuclear 50-423 Engineering and Operations P. O. Box 270 Hartford, Connecticut 06101 Philadelphia Electric Company Docket Nos. 50-277 ATTN:

Mr. S. L. Daltroff 50-278 Vice President Electric Production 2301 Market Street Philadelphia, Pennsylvania 19101 Power Authority of the State of New York Docxet No. 50-286 Indian Point 3 Nuclear Power Plant ATTN:

Mr. S. S. Zulla Resident Manager P. O. Box 215 Buchanan, New York 10511 I

l

r I

3 Power Authority of the State of New York Docket No. 50-333 James A. FitzPatrick Nuclear Power Plant ATTN:.Mr. R. J. Pasternak Resident Manager P. O. Box 41 Lycoming, New York 13093 Public Service Electric and Gas Company Docket Nos. 50-272 ATTN: Mr. F. W. Schneider 50-311 Vice President - Production 80 Park Plaza Newark, New Jersey 07101 Rochester Gas and Electric Corporation Docket No. 50-244 ATTN: Mr. John E. Maier Vice President Electric and Steam Production 89 East Avenue Rochester, New York 14649 Vermont Yankee Nuclear Power Corporation Docket No. 50-271 ATTN: Mr. Robert L. Smith Licensing Engineer 1671 Worcester Road Framingham, Massachusetts 01701 Yankee Atomic Electric Company Docket No. 50-29 ATTN: Mr. James A. Kay Senior Engineer-Licensing 1671 Worcester Road Framingham, Massachusetts 01701 Duquesne Light Company Docket No. 50-412 ATTN: Mr. E. J. Woolever Vice President 435 Sixth Avenue Pittsburgh, Pennsylvania 15219 Jersey Central Power & Light Company Docket No. 50-363 ATTN: Mr. I. R. Finfrock, Jr.

Vice President 260 Cherry Hill Road Parsippany, New Jersey 07054 Long Island Lighting Company Docket No. 50-322 ATTN: Mr. M. S. Pollock V'.ce President - Nuclear 175 East Old Country Road Hicksvill.e, New York 11801 c~

4 Long Island Lighting Company Occket Nos. 50-516 ATTN: Mr. Charles P. Davis 50-517 Senior Vice President 250 Old Country Road Mineola, New York 11501 Niagara Mohawk Power Corporation Occket No. 50-410 ATTN:

Mr. G. K. Rhode Vice President System Project Management c/o Miss Catherine R. Seibert 300 Erie Boulevard, West Syracuse, NY 13202 Pennsylvania Power & Light Company Docket Nos. 50-387 ATTN: Mr. Norman W. Curtis 50-388 Vice President Engineering and Construction - Nuclear 2 North Ninth Street Allentown, Pennsylvania 18101 Philadelphia Electric Company Occket Nos. 50-352 ATTN:

Mr. John S. Kemper 50-353 Vice President Engineering and Research 2301 Market Street Philadelphia, Pennsylvania 19101 Public Service Electrtc & Gas Company Docket Nos. 50-354 ATTN:

Mr. T. J. Martin 50-355 Vice President Engineering and Construction 80 Park Plaza - 17C Newark, New Jersey 07101 Public Service Comoany of New Hamcshir:

Docket Nos. 50-443 ATTN:

Mr. W. C. Tallman 50-444 Chairman and Chief Executive Officer 1000 Elm Street Manchester, New Hampshire 03105 Rochester Gas & Electric Corporation Docket No. 50-485 ATTN: Mr. J. E. Arthur Chief Engineer 89 East Avenue Rochester, New York 14649

^

Y SSINS No.: o820 Accession No.:

8011040289 IES 81-03 tn i UNITFD STATES NUCLEAR REGU uTORY CCMMISSICN O

5/

1 0FFICE OF INSPECTICN AND ENFORCEMENT

/

/,fgy O 'i 198k.

• WASHINGTON, D.C.

20555 C

April 10, 1981 kgg y

\\

sS

.,gpb. b, '

i IE Bulletin 81-03 :

FLCW BLOCKAGE OF CCOLING WATER TO SAFETY SYSTr_ C CCMPONENTS SY CORBICU u SP. (ASIATIC CLAM) AND MYTILUS SP. (MUSSEL)

-Cescriotion of Circumstances:

On September 3,1980, Arkansas Nuclear One (ANO), Unit 2, was shut down after the NRC Resident Inspector discovered that Unit 2 had failed to meet the technical specification requirements for minimum service water flow rate through the containment cooling units (CCUs). After plant shutdown, Arkansas onwer and Light Company, the licensee, determined that the inadequate flow was due to extensive plugging of the CCUs by Asiatic clams (Corbicula species, a non-native fresh water bivalve mollusk).

The licensee disassemoled the service water piping at the coolers. Clams were found in the 3-inch diameter supply piping at the inlet to the CCUs and in the cooler inlet water boxes.

Scme of the clams found were alive, but most of the debris consisted of shells.

The size of the clams varied from the larvae stage up to one inch. The service water, which is taken from the Cardanelle Reservoir, is filtered before it is cumped through the system. The strainers on the service water pump discharges were examined and found to be intact.

Since these strainers have a 3/16-inch mesh, much smaller than some of the shells found, it appears that clams had been growing in the system.

Following the discovery of Asiatic clams in the containment coolers of Unit 2, the licensee examined other equi;: ment cooled by service water in both Units 1 and 2.

Inspection of other heat exchangers in the Unit 2 service water system revealed some fouling or pl~ugging of additional coolers (seal water coolers for both redundtnt containment spray pumps and one low pressure safety injec-tion pump) due to a buildup of silt, corrosion products, and debris (mostly clam shell pieces). The high pressure safety injection (HPSI) pump bearing and seal cooler; were found to have substancial plugging in the 1/2-inch pipe service water supply lines. The plugging resulted from an accumulation of silt and corrosion products.

Clam shells were found in some auxiliary building room coolers and in the non-safety-related equipment.

p gwm as-

+f.----

m* ~- w$ch ea,vac ing through the CCUs at ANO-2 had DUPLICATE DOCUMENT ing after plant shutdown initially i

oper flow rates were restorec only Entire document previously

.lly frcm the CCUs.

.q entered into system under:

~

T Q //D /jg j $

system revealed that the "C" and ANO

~

is.

Clams were found in the 3-inch N o. of pages:

[p However, no clams were found

{dm w,

nw 1 y

__ m Ov.a u. Amy.,;g 7,

,