ML19346A327
| ML19346A327 | |
| Person / Time | |
|---|---|
| Site: | Cook  |
| Issue date: | 05/28/1981 |
| From: | Hunter R INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| AEP:NRC:0553, AEP:NRC:553, IEB-81-03, IEB-81-3, NUDOCS 8106190143 | |
| Download: ML19346A327 (3) | |
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V lNDIANA & MICHIGAN ELECTRIC COMPANY P. O. Bo X 18 BOWLING GREEN ST AT!oH NEW Y O R K, N. Y.10004 May 28, 1981 AEP:NRC:0553 Donald C. Cook Nuclear Plant Unit Nos. 1 and 2 Docket Nos. 50-315 and 50-316 N
License Nos. DPR-58 and DPR-74 4
n-'
fl[.{u,.
gv) 0 Mr. James G. Keppler, Director
- D JUti 131981 > %
]( u.s.uuu m" U Office of Inspection and Enforcement O'*
U. S. Nuclear Regulatory Comission Region III 799 Roosevelt Road Glen Ellyn, Illinois 60137
Dear Mr. Keppler:
This letter is in response to your letter of April 10, 1981 which transmitted to us IE Bulletin No. 81-03 entitled " Flow Blockage of Cooling Water To Safety System Components by Corbicula sp. (Asiatic Clam) and Mytilus sp.(Mussel)". We received your letter on April 15, 1981. contains the information requested by Items 1 and 4 under " Action to be taken by Licensees" and the written report required by Item 5.
Items 2 and 3 are not applicable to our facility.
Very truly yours,
~ (
RSH/os
. S.
unter Vice President cc: Jchn E. Dolan - Columbus R. C. Callen G. Charnoff R. W. Jurgensen D. V. Shaller - Bridgman V. Scello, Jr., Director 0.I.E. - NRC, Washington
[ff NRC Resident Inspector at Cook Plant s&
1 PJUN 1 1981 810619 0 / Q
t ATTACHMENT 1 TO AEP:NRC:0553 1.
The Appendix 8 Environmental Technical Specification describes the Benthos monitoring requirements for the Donald C 4.1.2.1.1.3 Nuclear Plart.
. Cook We have reviewed the past Annual Environmental Operating Reports for the Donald C. Cook Nuclear Plant and deter-mined that Corbicula sp.
are not and were never pres (Asiatic Clam) and Flytilus sp.(Mussel) in the vicinity of the plant.ent in the source and receiving water by our consultants at the University of Michigan, and they haveT concluded that these organisms do not exis't in the Lake Michigan Basin.
Mytilus will not be a problem due to the fact that this organism is marine and the Donald C. Cook Plant utilizes fresh water as its source and receiving water body.
4.
The fire protection system at D. C. Cook Plant is t Paragraph F for detection of flow blo'ckage.
no flow blockage problems have existed due +o biofouling. Testing indicate circulating water condenser water boxes are v.sually inspected at The least annually for debris.
4.a See our response to 1. above.
level and h'gh velocities creating the potential for intrusion ofFu these organisms into the Plant circulating water system are consid to be remote due to the intake structures design and to their submer ered in twenty-four (24) feet of water in th n
e lake.
4.b The effectiveness of prevention ano detection methoris used in tha exist in the local environment at Cook Plant.present and for fut
- past, 5.a The current Environmental Technical Specificaticn Section is the r,onitoring requirement for Ber.thos.
412113 Benthos surveys were first performed in 1966.
Monitoring has been continuous since 1969.
most recent monitoring was performed in April, July and October of The 198').
in the local environment at the Cook Plant.The results of these su detect any future presence of these organisms will be continuedA once a ye 5.b No systems or components have been affected by the organisms.
5.c No fouling has existed.
5.d No fouling has been discovered.
5.e No corrective actions have been necessary, and no preventive actions are planned.
STATE OF NEW YORK )
COUNTY OF NEW YORK)
R. S. Hunter, being duly sworn, deposes and says that he is the Vice President of Licensee Indiana & Michigan Electric Company, that he has read the foregoing response to IE Bulletin No. 81-03 entitled " Flow Blockage of Cooling Water to Safety System Components by Corbicula sp.
(Asiatic Clam) and Mytilus sp. (Mussel)" and knows the contents thereof; and that said contents are true to the best of his knowledge and belief.
k
- i0 U b Sub ibed and sworn to before me this 2 8'* day of M 19 re7 t.
t (Notary Publi NCie i e' ':.;0. L vt a fu.:C..'.v1c.x ::c.rx Yort So. 41-such.:
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