ML20127H586
| ML20127H586 | |
| Person / Time | |
|---|---|
| Site: | Monticello  |
| Issue date: | 04/03/1967 |
| From: | Baker A INTERIOR, DEPT. OF, GEOLOGICAL SURVEY |
| To: | Price H US ATOMIC ENERGY COMMISSION (AEC) |
| References | |
| NUDOCS 9211180551 | |
| Download: ML20127H586 (3) | |
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UNITED STATES
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5 DEPARTMENT OF THE INTERIOR
he s GEOLOGICAL SURVEY bd W ASHINGT ON, D.C.
20742 l
l APR 3 - 1967 i
- 16. Harcld L. Price Directer cf Regulaticnc U. G. Atcmic Energ,y Cerniscicn 4915 St. E]ro Avenue Bethecda, Faryland 20515
Dear Mr. Price:
Trancm$tted herewith, in recponce to the request cf Mr. Edcca G. Cace, is a review cf the geolcgic and hydrologic acpects of the licence applicat$ca of the Ucrthern States Pcver Ccmpany, Menticello Nuclear Generating Plant site.-
This revicu prepared by Henr.v W. Coulter and Eric L. Meyer of the Geological Survey hac bcen discusced vibh membcrc cf ycur staff and we have nr cojectient to year makinc it a pert of the public record.
Sincerely ycurc, j%k s. 8 JI k&
Acting Directer Enalccure i
9211180551 670403 PDR ADOCK 05000263
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Ucrt,bern States Pcver Cenpany Penticello Nuclecr Generatinr hont, Minneccta HVD% LOGY The site is lecated on a bluff en the richt bank cf the Micciscippi River, about h tilec upctream frce Rnticello, Minneccta. The reacter grade altitude has been cet at 933 feet abcVe mean sea level, and critical equipment in the cocling water intake _ structure is te be floedprocred t a ctare cf 930 feet.
This appears tc be vell above the-maximum prcbatle flcod staCe to be expected at the cite.
Minimum flcv in thic reach cf the river cinec about 1915 has been ahcut 250 cubic feet per cecond, mere than an erder cf encnitude higher than the cervice vater requirement fcr cafe chutd wn.
GECIOGY Tne analycic of the EcclCCy cf the Monticelle liuclear Generating I'lant cite precented in Atcmic Energy Ccmticcica Docket (50-263 and cupplcments) wac reviewed end ccmpared with the availuble li te rat ure.
Tuere are no identifiable cealtgic ctructures which could be expected tc localize carthquekec in the immediate vicinity cf the plant.
ircaticn cf the mascive reinforced ecncrete intake structure anchcred.
te bedrock icctin6s between the plant and the river bank, as shown cn Fice. 6. 1-E and S. 1-3, Amendment 6, chculd ebriate potential problems reculting frca sudden clcpe failures or undercutting by the river in that crea.
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Northern States Ptwer Ccmpany 2.
?baticello Nuclear Generating Flant, Minneceta y
H_Y.D_ROI_EG.Y 0;f
'Ihe site is located en a bluff en the right bank cf the Mississippi tb h
River, abcut 4 miles upstream from Menticello, Minnesota.
The reacter grnde altitude has been set at 935 feet above mean sea level, and i,) Id c ri t ic d eq11 pent in the cooling water intake structure is to be eg "ei ;o a atsge of 930 feet. This appears to be well abnve
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taw x a t..:. nble stage to be expected at the site.
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i.3 reach cf the river since abrut 1915 has teen
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.eet per seccnd, cere than an crder of :.a6nitude S ce '
service water requirement fer sal. t cddevn, given e
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.ts per minute (about 13 5 cub'ic fer:. mv seccad).
GK LC G._Y.
The analysis of the geclegy of the Monticelle Nuclear Generating Plant site presented in Atomic Energy Cemmiscien Decket (50-263 and supplements) was reviewed and ccmpared with the available literature.
There are no !?.entifiable 6eologic structures which could be expected to 1ccalize earthquakes in it.e ictediate vicinity cf the plant.
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..f the massive reinfc rced ccacrete in' *
' structure anchcred to bedecek fcotings between the plant and the bank, as shcun' en Figs. 7 1-2 and 3.1-3, should cbviate potential pecblems resulting frem sudden slope failures or undercutting by the river in that area.
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