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Federal Emergency Manag' Fnent Agency acaveu y-9
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Region IX Building 105
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January 18. 1984 41.
United States Nuclear Regulatory Commission Region V 1450 Maria Lane, Suite 210 Walnut Creek, California 94596 Attention:
Mr. Ross A. Starano, Director Radiological Safety sad Safeguards Programs Subj ect:
Correspon'dence addressed to Mr. John B. Martin, Regional Administrator for the United-States Nuclear Regulatory Commission, Region.V. from Dr., Richard Kranzdorf, Concerned Cal Poly Faculty and Staff, dated December 9, 1983.
Gentlemen:
Subject letter identified two planning issues for preparedness of offsite jurisdictions at the Diablo Canyon Nuclear Generating Station. The fol-lowing information is provided in response to your request for assistance in addressing the issues raised by Dr. Kranzdorf.
1.
The flooding at " Twin Bridges" or " Twin Trestles" was addressed by an earlier response--refer to our letter to you dated December 16, 1983, copy attached.
2.
The siren system for alerting residents within the off-site jurisidictions around the Diablo Canyon Nuclear Generating Station consists of 94 sirens. Two of the sirens are solar powered.and 92 are electrically power-ed by sources distributed through seven different elec-trical power substations. Verification of electrical /
power availability is a responsibility of the San Luis Obispo County Sheriff's Watch Commander;who, upon acti-vation of the siren system, would contact the Pacific Gas and Electric "ower Distribution Cen'.:r at Morro Bay for that purpose. Should a substation sutage be reported as a result of that verification procedure, the Watch Commander would dispatch appropriate county staff to the affected area for personal notification to residents.
This activity would be performed in accord with the guid-ance provided in NUREG-0654/ FEMA REP-1, REV.1 that speci-fies the county has 45 minutes to alert that portion of the public that did not receive the initial alert.
This information has been fully coordinated with the State of California
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Office of Emergency Services and Sar Luis Obispo County.
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United States Nuclear Regulatory Commission Region V Page Two Further information of the above can be provided by John P. Sucich, who can be reached by calling 415-556-9840.
Sincerely, e
s-A R
r c ers Regional Director Enclosure cc: Office of Emergency Services State of California Office of Emergency Services San Luis Obispo County e
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ECEIVED
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) Federal Emergency Management AgenEj Region IX Building 105 Presidio of San Francisco, Czjifornia 94129 123 EC 20 PM 12 b,,
16 DEC 1983
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United States Nuclear Regulatory Commission Reg. ton V 1450 Maria Lane, Suite 210 Walnut Creek, California 94596 Attention: Mr. Ross A. Scarano. Director Radiological Safety and Safeguards Programs Gentlemen:
Subject:
Letter Directed to the Honorable Nunzio Palladino, Chairman of the Nuclear Regulatory Commission, from Dr. Richard Kranzdorf, Spokesperson for Concerned Cal Poly Faculty and Staff, dated November 4, 1983.
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This letter wil1 respond to your request for assistance in formulating a response to subject letter relative to concerns about plans and preparedness of the offsite jurisdictions around the Diablo Canyon Nuclear Generating Station. The information provided below is the result of discussions with the Office of Emergency Services.
State of California, and the Office of Emergency Services County of San Luis Obispo.
1.
Evacuation Time Considerations. Evacuation Times Assessments for Diablo Canvon Nuclear Power Plant, September 1980 Alan M. Voorhees and Associates, Inc.,
based on empirical data during various weather conditions and using " standard engineering ' techniques" described the conclusion that a 20% additional time factor should be applied to mermal evacuation times for heavy-rain conditions.
The study further concluded that " heavy-rain" constituted a " worst case" for emergency evacuation planning and that fog was considered to be a substantively lesser problem. Traffic studies around the Rancho Seco Nuclear Generating Station, conducted by Robert Hubenette and Associates, also confirmed a 20% additional travel time during rainy weather.
2.
Evacuation Transportation Routes. The County has addressed certain flooding i
problems and have budgeted funding for improvements to the impacted areas.
People can be evacuated east on Los Osos Valley Road and it is considered un-likely that both Morro Bay and San Luis Obispo would be evacuated concurrently.
Based on current information, the State of California Office of Emergency Services
. advises that experience with the areas addressed in subject letter has reflected
- that these evacuation routes are considered to be reasonable and safe even though affected by flooding during a postulated emergency.
3.
Emergency Broadcast System. Officially designated Emergency Broadcast System stations are required to have an emergency power system. Radio station KVEC was operating on-the-air with emergency backup power. The tud and a half hour interval applies only to the amount of time it took the Pacific Gas and Electric Company to resume initial power because of a blown fuse. At this time, alter-nate radio stations are seriously considering the emergency power system in-stallation.
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- e U. S. Nuclear Regulatory Commission Page Two 4.
Earthquake Considerations. Earthquake Emergency Planning.at Diablo Canyon.
September 2, 1981. TERA Corporation, thoroughly addresses all aspects of d earthquake effects at the Diablo Canyon Nuclear Power Plant. The Cali,fornia
.-Department of Transportation performed a subsequent study of projected damages
-identified by the TERA Corporation report and the length of time required for necessary repairs. That information was made available to the County of San
~Luis Obispo. During a nuclear emergency, the County plans call for the esta-blishment of a special group to consider any earthquake problems. All these special efforts, as well as the planning activities resulting therefrom, have been extensive and quite signficant.
In general, this office feels that Dr. Kranzdorf has based his comments on a " worst case" basis that would require one hundred percent evacuation from all local juris-dictions within the 10-mile emergency planning zone simultaneously, without benefit of emergency public~information, and under extreme adverse weather conditions.
In-asmuch as there is no known experience, planning and preparedness measures are di-rected at addressing physical probabilities, applying standards for the mest advan-j tageous use of resources available. Through a cyclic system of exercising, designed to provide continuous plan improvement, the public is afforded the optimum protection-that can be developed. Recent exercises, conducted to assess the planning efforts of
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the offsite jurisdictions around the Diablo Canyon Nuclear Generating Station have demonstrated that there is a reasonable assurance that the appropriate protective 4
- measures can and will be taken in the event of a radiological emergency.
Should you require further assistance with regard to this matter, do not hesitate to r
j contact Thomas F. Brinton or John P. Sucich at 415-556-9840.
Sincarely.
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- W Rob c L.
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l Regional ~ Director cc: Office of Emergency Services State of California Office of Emergency Services County of San Luis Obispo 9
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.. *r MCEIVED Federal Emergency Management Agen'2f Region IX Building 105 -
Presidio of San Francisco, California 94129 123 DEC 20 MI12 U 16 DEC 1983
.,,. m United States Nuclear Regulatory Commissica Region V 1450 Maria Lane, Suite 210-i i
Walnut Creek, California 94596 i
Attention: Mr. Ross A. Scarano Director i
Radiological Safety and Safeguards Programs i
Gentlemen:
Subject:
Letter Directed to the Honorable Nunzio Palladino,
' Chairman of the Nuclear Regulatory Commission, from Dr. Richard Kranzdorf, Spokesperson for Concerned Cal Poly Faculty and Staff, dated November 4, 1983.
i This letter will respond to your request for assistance in formulating a response I
to subject letter relative.to concerns about plans and' preparedness of the offsite i
juri'adictions around the Diablo Canyon Nuclear Generating Station. The information provided below is the result of discussions with the Office of Emergency Services, State of California, and the Office of Emergency Services County of San Luis Obispo.
=
1.
Evacuation Time Considerations. Evacuation Times Assessments for Diablo Canyon Nuclear Power Plant, September 1980, Alan M. Voorhees and Associater., Inc.,
based on empirical data during various weather conditions and using " standard engineering techniques" described the conclusion that a 20% additional time l
factor should be applied to normal evacuation times for heavy-rain conditions.
The study further concluded that "heevy-rain" constituted a " worst case" for emergency evacuation planning and that fog was considered to be a substantively lesser problem. Traffic studies around the Rancho Seco Nuclear Generating Station, conducted by Rchert Hubenette and Associates, also confirmed a 20% additional travel time during rainy weather.
2.
Evacuation Transportation Routes. The County has addressed certain flooding problems and have budgeted' funding for improvements to the impacted areas.
People can be evacuated east on los Osos Valley Road and it is considered un-likely that both Morro Bay and San Luis Obispo would be evacuated concurrently.
Based"on current information, the State of California Office of Emergency Services
. advises that experience with the areas addressed in subject letter has reflected that these evacuation routes are konsidered to be reasonable and safe even though affected by flooding during a positulated emergency.
3.
Emergency Broadcast System. Officially designated Emergency Broadcast System stations are required to have an emergency power system. Radie. station KVEC was operating on-the-air with emergency backup w ar.
The two and a half hour
~
interval applies only to the amount of time it t ok the Pacific Cas and Electric Company to resume initial power because of a blown fuse. At this time, alter-nate radio stations are seriously considering the emergency power system in-stallation.
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U. S.' Nuclear Regulatory Commission Page Two 4.
Earthquake' Considerations. Earthquake Emergency Planning st Diablo Canyon.
September 2,1981 TERA Corporation, thoroughly addresses all aspects-of d' earthquake effects at the Diablo Canyon Nuclear Power Flant. The Calif,ornia
.-Deps.rtment of Transportation performed a subsequent study of projected damages identified by the TERA Corporation report and the length of time required for necessary repairs. That information was made available to the County of San Luis Obispo. During a nuclear emergency, the County plans call for the esta-blishment of a special group to consider any earthquake problems. All these special efforts, as well as the planning activities resulting therefrom, have been extensive and quite signficant.
In general, this office feels that Dr. Kranzdorf has based his comments en a " worst case" basis that would require one hundred percent evacuation from all local juris-dictions within the 10-mile emergency planning zone simultaneously, without benefit of emergency public information, and under extreme adverse weather conditions.
In-asmuch as there is no known experience, planning and preparedness measures are di-rected at addressin.g physical probabilities, applying standards for the most advan-tageous use of resources available. Through a cyclic system of exercising, designed to provide continuous plan improvement, the public.is, afforded the optimum protection that can be developed. Recent exercises, conducted to assess the planning efforts of the offsite jurisdictions around the Diablo Canyon Nuclear Generati:3 Sta-ion have demonstrated that there is a reasonable assurance that the appropriate protective.
measures can and will be taken in the event of a radiological emergency.
Should you require further assistance with regard to this matter, do not hesitate to contact, Thomas F. Brinton or John F. Sucich at 415-556-9840.
SincaYe1.-
s W
Rob c L. v 4.iaa.
Regional Director cc: Office of Emergency Services State of California Office of Emergency Services County of San Luis Obispo e
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