ML17328A415
| ML17328A415 | |
| Person / Time | |
|---|---|
| Site: | Cook  |
| Issue date: | 08/13/1990 |
| From: | Colburn T Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML17328A414 | List: |
| References | |
| NUDOCS 9008310149 | |
| Download: ML17328A415 (3) | |
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UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON,D.'. 20555 SAFETY EVALUATION BY THE OFFICE OF NUCLEAR REACTOR REGULATION RELATED TO AMENDMENT N0.145 TO FACILITY OPERATING LICENSE NO. DPR-58 AND AMENDMENT N0.132 TO FACILITY OPERATING LICENSE NO. DPR-74 INDIANA MICHIGAN POWER COMPANY DONALD C.
COOK NUCLEAR PLANT~ UNIT NOS. I AND 2 DOCKET NOS. 50-315 AND 50-316 1.0
2.0 INTRODUCTION
By letter dated November 28, 1989, Indiana MIichigan Power Company (the licensee) requested amendIIIents to the D. C. Cook, Units 1 and 2 Technical Specifications (TS).
The proposed amendments would change TS 3/4.8.1, "A.C. Sources,"
to require that each diesel generator fuel storage tank contain at least 46,000 gallons of fuel.
The amendments also clarify the TS requirement to state that the minimum fuel storage tank volume is based on the indicated volume of fuel in the tank.
EVALUATION In response to NRC Information Notice 89-50, the licensee reevaluated the minimum fuel requirements for the diesel generators using the method recommended in ANSI N195-1976.
The volume of fuel needed to run each diesel for seven consecutive days at full load (43,240 gallons) exceeds the present TS minimum volume of 42,000 gallons.
Currently, the licensee has administrative controls in effect to limit each minimum diesel generator fuel tank volume to 46,000 gallons.
The licensee's method for measuring fuel tank volume is to use a depth stick to determine fuel tank level.
Due to the geometry of the tank, not all of the fuel contained in the tank is available for the diesel.
The licensee considers this TS requirement to be sufficiently vague that a change to the bases of this TS has been proposed.
The licensee has requested that the bases be changed to note that the 46,000 gallon minimum volume is based upon the indicated volume, not the available volume.
The proposed minimum volume of 46,000 gallons allows sufficient margin from the 43,240 gallons calculated using ANSI N195-1976 to account for this discrepency.
The proposed changes to the TS place additional restrictions upon the amount of fuel which must be maintained in each diesel generator fuel tank and, therefore, are conservative.
Based upon the above evaluation, the staff concludes that the licensee's proposed TS change is acceptable.
9008310149 9OOB<3 PDR ADOCK 050003>54 P
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3.0 ENVIRONllENTAL CONSIDERATION These amendments involve a change in a requirement with respect to the installation or use of a facility.component located within the restricted area as defined in 10 CFR Part 20 and a change in a surveillance requirement.
Ve have determined that the amendments involve no significant increase in the
- amounts, and no significant change in the types, of any effluents that may be released offsite, arid that there is no significant increase in individual or cumulative occupational radiation exposure.
The Commission has previously issued a proposed finding that these amendments involve no significant hazards consideration and there has been no public comment on such finding.
Accordingly, these amendments meet the eligibility criteria for categorical exclusion set forth in 10 CFR 51.22(c)(9).
Pursuant to 10 CFR 51.22(b),
no environmental impact statement or environmental assessment need be prepared in connec'tion with the issuance of these amendment.
4.0 CONCLUSION
hie have concluded, based on the consjderations discussed above, that (I) there is reasonable assurance that the health and safety of the public will not be endangered by operation in the proposed
- manner, (2) such activities will be conducted in compliance with the Commission's regulations, and (3) the issuance of the amendments will not be inimical to the common defense and security or to the health arid safety of the public.
Date:
August 13, 1990 Principal Contributor:
R. Stransky, NRR/PD3-1
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