ML19199A679
| ML19199A679 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 11/24/1976 |
| From: | Hulman L Office of Nuclear Reactor Regulation |
| To: | Varga S Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 7905070255 | |
| Download: ML19199A679 (2) | |
Text
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DISTRIEUTION:
CENTRAL FILE NOV 2 4 lo s HM3 READING DSE READING NRR READING MDd.ORANDUM FOR:
S. Varga, Chief, Light Water Reactors Branch 4, DFM L. G. Hultsan, Chief, Hydroloev-Meteorology Branch, DSE FROM:
HTDROLOGIC ENGINETRING SER SUFFLD! INT INFUT SU3 JECT:
PLANT NAME: Thren Mile Island - Unit 2 LICENSING STAG DOCIET NUMBFR: (50-320/
REQUESTED COMPLEiICS'DATE: 11/19/76 RE7IEW STATUS: Hydrologic Engineering Section (HM3) - Cc=plete Enclosed is Hydrologic Engineering SER Supple:sent Input, prepared by This input addressed concerns raised at the ACES full T. L. Johnson.
comittee meeting regarding amergency operating plans following floods.
These concerns were resolved with the applicant's subtrittal of Anendment 48, dated 11/15/76, received by EES o's 11/18/76.
L. C. Hulman, Chief Hydrology-Meteorology Branch Division of Site Safety and Environmental Analysis
Enclosure:
As stated ec: w/o enclosure R. Boyd W. Mcdonald J. Fanzarella cc: w/ enclosure H. Denton D. Muller W. G==f11 F. Miraglia ST BC's J U)
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HYDROLOGIC ENGINEERING SER INPUT THREE MILE ISLAND-UNIT 2 DOCKET NO. 50-320 Based on our review of flood hydrographs and wa.'- levels, we cenclude that the applicants' energency operating procedures are adequate to safely shut down the units and maintain them in a safe condition during an occurrence of the PMF.
In addition to the ficoding pro-tection requirenents which were stated in our safety evaluation report, the applicant has provided further iafor=ation to document the adequacy of emergency plans.
The applicant has stated that since access to the island will not be possible for about 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> (when the water level is above elevation 302), a seven-day supply of diesel fuel is provided onsite to operate a fully-loaded diesel.
In addition, the access bridge will survive the FMF, and any necessary fuel oil could be pro-vided after the flood recedes below elevation 302.
If needed, he'7ver, a 50,0C0 gallon fuel oil tank is located onsite, or additional fuel delivery would be possible. The applicant states that sufficient personnel are always on site at all times tc safely accomplish unit shutdown.
If additional personnel are required for some reason ad the access bridges are inaccessible, alternate neans of transportatien (such as by boat or air) could be utill:ed. We conc 2.de that the above con =10:ents are acceptable.
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