ML20118D254
| ML20118D254 | |
| Person / Time | |
|---|---|
| Site: | Bodega Bay |
| Issue date: | 04/23/1963 |
| From: | Mccool W US ATOMIC ENERGY COMMISSION (AEC) |
| To: | US ATOMIC ENERGY COMMISSION (AEC) |
| Shared Package | |
| ML093631134 | List:
|
| References | |
| NUDOCS 9210120040 | |
| Download: ML20118D254 (1) | |
Text
{{#Wiki_filter:,, -. < g.,, -.,, y4 c.. O O UNCLASSIFIED AEC-R 80/7 April 23,1963 COPY NO. 'l 0 ATOMIC ENERGY COfMISSION REPORT ON BODE 0k BAY ATOMIC PARK - UNIT #1 o Note by the Secretary The attached letter from the Chairuan, Advisory Committee on Reactor Safeguards, is circulated for the information of the Com-mission. It has been referred to the Director of Regulation. t W. B. McCool Secretary DISTRIBUTION COPY NC. Secretary 1 Cen=1ssioners 2-6 7 - 8,55 Dir, of Regult. tion General Mana'ger 9 - 10 Deputy Dir. of Regulation 11 Deputy Gen. Mgr. 12 Asst. Gen. Mgr. 13 Asst. GM-Plans & Prod. 14 Asst. Gen. Ngr. R&D 15 General Counsel 16 - 20 Congr. Liaison 21 Public Information 22 - 23 Inspection 24 Licensing & Regulation 25 - 26 Operational Safety 27 3 Plans & Reports 28 - 29 Radiation Standards 30 Reactor Development 31 - 43 Manager, Naval Reactors 44 San Francisco Oprns. 45 D. c. Office 46 - 48 Secretariat 49 - 54 +1 921012o040 920520 PDR ORJ NRCH t.fr. j n 2 w' t ( r
e '~ l April 18,1%3 Honorable Glenn T. Seaborg Chairne U. S. Atomic Energy Cccrission Washington, D. C.
Subject:
REFORT ON BOICIA BAY AluCC PARK - UNIT fl fear Dr. Seaborg: j At its forty-seventh meeting, April 11-13, 1963, the Advisory Comittee on Reneter Safeguards considered the application by the Pacific Gas and } Electric Company for approval of construction of a nuclear pover unit at Bodega Bay Atomic Park, on Bodega Head, Sonoma County, California. Se ( Com:sittee had the benefit of discussions with representatives of the ) Pacific Gas and nectric Con Acy, the General Electric ComIeny, and the AEC Staff and their consultants, he application had also been reviewed with the applicant at a subcom:sittee meeting on Manh 20,1963, and in a preliminary form at a subcournittee meeting on July 31, 1962. Fembers of the Co::xsittee vieved the site at an earlier date. In its delibera-tions, the Coc=ittee made use of the documents listed. Ee site of the proposed nuclear power unit is on the Pacific coast, 4 about fifty miles northwest of the City of San Francisco. Areas nearby are used for ce::: ping and picnicking, agriculture, and seine ecc:nercial fishing. An adjacent tract of land is being acquired by the University of California as a field station for marine biology and other scientific j studies. L"he nacter site proposed is about one thousand feet vest of j the San Andreas fault =cne. The surrounding population density is rela-tively lov. De plant vill incorporate engineered safeguards. Se 1008 W(t) reactor plant proposed is cf the fomed-circulation, boiling water type. Pressure suppression confine:nent is to be used, with the reactor located in a dry veu that is rated at 62 psi internal pres-sure, and is cennected to a toroidal suppression chtL"iber rated at 35 psi internal pn seure. As proposed, the turbine and some associated prirmary ) piping as well as sece other parts of the primary system, such as feed. - vater pu=ps and the primary water cleanup system, a:e not to be confined. All piping Tenetrations throu6h the dry veu van are to be pmvided with isohtien valves. The applicant states that all major lines that Iene-trate the dry veu vall and oIen into the dry ven or the nuclear stens Menphy
O O Ibnorable Glenn T. reaborg.,.;ril 18, W \\ supply system are to be pmvided with two valves, one being remtely operable. Consideration should be given to the inclusion of adittional backup isolation v$1ves in some of the primary system piping and to inclusion of a strainer beton the main steam line isolation valve to prevent foreign matter from interfering with proper valve action. Further consideration should be given to providing the emergency cooling system with pump back-up beyond that provided by the auxiling feeduter pump. the Comittee believes that the dry well and the suppression pool should be designed and built to pemit leak testing at design pressure after the installation of al3 penetrations, and that design and con-struction should remit periodic leak testing at the suppression cha.mher design pressure. In the initial tests of the dry well, the leak rates should be detemined as a function of the internal pressure, so that the results of subsequent tests at lover than dry well design pressure can be extrapolated with confidence. In the unlikely event of a reactor accident, the emergency ventilation system is relied on to reduce the consequences. The Comittee believes that this system sh:,uld also be designed and constructed to permit frequent testing of the ability of the filtration and iodine removal units to meet their specified efficiency levels. ':he requirements that are imposed on plant design because of location in an active seis=1c ana have been considered by the applicant, and the referenced doctments contain the neo=mendations of seismologists who have been consu# ed on this question. Tentative exploration indicates that the reacter and turbine buildings vill not be located on an active fault line. The Comittee believes that if this point is established, the design criteria fer the plant are adequate from the standpoint of hazaMs associated with earthquakes. Careful exn-hation of the quartz-dicrite rock below should be mde during building excavution, to confirm this point. Purthermore, the Co:=2ittee suggests that, during design careful attentica should be given to the ability of emergency shutdow,n syste=s to operate properly during and subsequent to violent earth shocks, and to the stress effects that night be irtroduced because the - reactor building and the turbine building are to be anchored in differ-ent geclegical femations. The need for earthquake-induced shutdown and isolation of the primary systen can be considered at a later time. O
~ ~ i O O a d i ? l-Honorable Glenn T. Ceaoorg April It$,1%3 j 6, 1 4 i A meteorological tower has been erected on the site and analyses of the observations will be used to estab1:,sh atmospheric dispersion coefficients, j and as one of the bases for detemiaing the height of the off-gas stack. 1 j The applicant has submitted evidence to establich that the anticipated' i te::;erature changes in the ocean near the condenser coolant discharge } Icint vill not be g nat enough to cause appreciable influence on the local 4 carine life. Se expected release of radioactive effluent by the condenser coc3 ant vnter vill be at rates vell belev the 10CFR20 linits. In addition, 3 the applicant has made arrangements to obtain environmental data on marine and land life in the neighborbood of the proIosed plant both before and after reactor cperation. Rese measures secti adequate to insure that the plant can be operated so as not to alter the local ecology or cause undesirable concentration of radioactivity in marine life. Le ACRS believes that, subject to the above coniitions, the pm;oned j reactor can be designed and built at the proposed location on Bodega i Head with reasonable assurance that it can be operated without undue hacard to the health and safety of the public. Sincerely yours, i i l /s/IAvidB. Hall D. B. Hall j Chaiman f i Referencent j 1. holininary Eazards C-a7 Report, Bodega Eny Atomic park - thit Number 1, dated Decenber 28,1%2. 2. A:::endment Number 1, Ansvers to Questions Raised by the Division of ) Licensir.g and Regulation Relative to Constmetion remit Application, l dated Mr.rch 4,1%3 4 l w 4 a W ,I 4 a 4 't ) I s r ,y,- e-ar*-=- e-e-= s yw=--,--==rw-m e v&ce -r r -- ~=w'--*-e-ver-=='wv--- w*M'e-*Pe-t e-- trt+ =~=v-~~-*-'-}}