ML20197F997
| ML20197F997 | |
| Person / Time | |
|---|---|
| Site: | Satsop |
| Issue date: | 06/10/1983 |
| From: | Regan W Office of Nuclear Reactor Regulation |
| To: | Hulman L Office of Nuclear Reactor Regulation |
| References | |
| CON-WNP-1274 NUDOCS 8306220232 | |
| Download: ML20197F997 (6) | |
Text
m DISTRIBUTION s
SAB Rdg SAB Plant WJ hnston JUN 101983 WRegan DCleary Docket I?o. 50-508 I C ORAi!DLH FOR: Lewis G. Ifulnan, Chief Accident Evaluation Branch, DSI FRC'1:
Um. If. Regan, Jr., Chief Site Analysis Branch, DE
SUBJECT:
WUP-3 DEIS IMPIIT A"D POP!'L.iTIO'! Pr!OJECTIO!'S FON THE YEAR 2000 Attached, as recuested by your Branch, is the input for Section 5.9.2.1.3(2), Site Features, of the HNP-3 DEIS, and the population projections for the year 2000 out to a distance of 500 niles around the UNP-3 site. The applicant's cro.fections wera used for the population frca 0 to 10 miles. Fro.9: 10 to 100 niles the data was obtained fren Connelley ifarketing and Infon ation Services. The 100 to 500 nile data is based on the county population statistics provided by the Pureau of Econonic Affairs within the radius of interest usinr1 the coordinatas 46* 57' 34" N latitude and 123* 2P' 15* 'l longitude. Poptilation projec-tions for Canada within 500 miles of the plant are also included, and Nere obtained frca general denographic references.
This input was preoared by Al Brauner in conj'inction with ' tike K31tran of the Site Analysis aranch.
Original signed by W. H. Regan, Jr.
Hm H. Regan, Jr., Chief Site Analysis 9 ranch Division of Engineering
Attachment:
As stated cc:
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'3 WNP-3 DEIS SITE FEATijRES 5.9.2.1.3(2)
The NRC's reactor site criteria,10CFR Part 100, require that for every power reactor the site have certain characteristics that tend to reduce the risk and potential impact of adcidents.
The discussion that follows briefly describes the WHP-3 site characteristics and how they meet these requirements.
First, the site has an exclusion area as required by 10CFR Part 100 which is a circular area with a 4300 ft (1310 meter) radius measured from the center of the reactor containment building. The Washington Public Power Supply System (WPPSS) owns approximately 1120 acres of the site in which the exclusion area is located. The rest of the site area is owned by private corporations or individuals but under the control of WPPSS by agreement with these owners. These agreements provide easements to the land. All of the mineral rights in the site area will be either owned or controlled by WPPSS. There are no residents living within the exclusion area. The only activities unrelated to plant operations that occur within the exclusion area are those associated with tree faming and transmission' line maintenance. Approximately 30 persons and associated temporary struc-tures and facilities may be located within the exclusion area from time to time to conduct timber faming activities.
These activities are subject to prior planning and approval by WPPSS. Also, personnel from the l
Bonneville Power Administration (BPA), by agreement with WPPSS, will be conducting maintenance in the BPA transmission corridor falling within the l
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exclusion area. Therefore, the appifcant has the authority required by Part 100 to determine all activities within the exclusion area.
There are no railroads, waterways or highways traversing the exclusion The only vehicular traffic po contend with is on the access roads area.
leading to the plant and the BPA corridor.
In case of an emergency, arrangements have been made to limit access, and control the activity and evacuation of everyone in the exclusion area.
Second, beyond and surrounding the exclusion area is a low population zone (LPZ), also required by 10CFR Part 100. The LPZ for the WNP-3 site is a circular area with a three mile (4827 meter) radius measured from a point centered on a line midway between unit 3 and the previously planned unit 5.
Except for the Chehalis and Satsop Rivers, the LPZ consists mostly of wooded areas. There is some limited recreational activity on the rivers. Within the LPZ the applicant must assure that there is a reasonable probability that appropriate protective measures could be taken on behalf of the residents an,d other members of the public in the event of a serious accident.
The applicant has indicated that there were about 906 persons residing in the LPZ in 1980, and project the population to increase to about 1506 by the year 2030.
In case of a radiological emergency, the applicant has made arrangements to carry out protective actions, including evacuation of personnel in th'e vicinity of the WNP-3 nuclear plant. _For further details, see-the following section on Emergency Preparedness.
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Third,10CFR Part 100 also requires that the distance from the reactor to the nearest bountfary of a densely populated area containing more than about 25,000 residents be at least one and one-third times the distance from the reactor to the outer boundary of the LPZ. Since accidents of greater potential hazards than those commo ly postulated as representing an upper limit are conceivable, although highly improbable, it was considered desirable to add the population center distance requirements in Part 100 to provide for protection against excessive exposure doses to people in large centers. The cities of Aberdeen-Hoquiam, located approximately 16 miles west of the plant, with a combined population of 35,170 in 1980 is the nearest population center. The distance from the site to the Aberdeen-Hoquiam area is at least one and one-third times the distance to the outer boundary of the LPZ.
Olympia, the capital of Washington, is about 26 miles east of the site and had a population of 27,447 in 1980. The largest city near the site is Tacoma, Washington, located about 50 miles northeast with a 1980 population of 158,501. The population density within 30 miles of the site when the plant is scheduled to go into operation (about 1986) is projected to be 66 persons per square mile, and is not expected to exceed 105 persons per square mile during the life of the plant.
The safety evaluation of the WNP-3 site has also included a review of,
potential external hazards, i.e. activities off-site.that might' adversely affect the operation of the plant and cause an accident. This review encompassed nearby industrial, transportation, and military facilities i
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that might create explosive, missile, toxic gas or similar hazards.
The risk to the WNP-3 facility from such hazards has been found to be negligibly.small. A more detailed discussion of the compliance with the Comission's siting criteria and the consideration of external hazards are given in the staff's Safety Evaluation Report.
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