ML20197B692
| ML20197B692 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 12/19/1997 |
| From: | Medling E SOUTHERN CALIFORNIA EDISON CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NUDOCS 9712240023 | |
| Download: ML20197B692 (2) | |
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' EDISON Marutger, Regulatoiy Projects.
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December 19,1997 U. S. Nuclear Regulatory Commission Attention: Document Control Desk
. Washington, D.C.
20555 Gentlemen:
Subject:
- Docket Nos. 50-361, 50-362 Special 30-Day Report Radiological Environmental Operating Report San Onofre Nuclear Generating Station, Units 2/3 Offsite Dose Calculation Manual (0DCM), Section 5.2.1, Action b for San Onofre Units 2/3FacilityOperatingLicenseNos.NPF-10andNPF-15requiresa30-day written report when the land use census identifies a location which yields a calculated dose or dose comniitment via the same exposure rathway 20 percent greater than at a location from which samples are currently being obtained.
The analysis of land use census data performed on December 15, 1997 indicated a dose-for the food and ground pathway at a newly identified garden greater than the dose currently calculated at an existing sample location.
The newly identified residential garden is in the city of San Clemente in Sector Q at 4.4 miles from the Units 2/3 release point. The calculated annual radiation dose was 5.43 x 10'8 mremduetoUnits'2/3airborneeffluentsviathefoodand ground pathway.
This was an increase of 33% over the value currently calculated for the. sampling location at Cotton Point Estates 8
(4.07x10 mrem), at 2.8 miles in Sector P.
The increased dose resulted from the cultivation _of leafy vegetables that are:not grown at any more established local gardens.
0ffsite' Dose Calculation Manual (ODCM), Section 5.1.1, Action d for San Onofre Uni.ts 2/3 Facility Operating License Nos.- NPF-10 and NPF-15 also requires a 30-day written-report when fresh leafy vegetable samples or fresh fleshy vegetable s&mples are unavailable from one of the sample locations required by Table 5-1.
The-newly identified residential garden in San Clemente was only r
9712240023 971219 PDR ADOCK 05000%1 P
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-Document Control Desk __ Table to provide one sample of_ leafy vegetables.--In accordance with ODCM requirements, replacement samples from the same vicinity will be obtained y
during_the current harvest season. We are evaluating options to preclude having tt'is sampling' difficulty in the future.-
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- The. analysis for. Unit 1-did not indicate any changes of sampling locations.
If _you require any additional information, please advise.
Sincer ly, u
cc:
E. W. Merschoff, Regional Administrator, NRC Region IV K. E.-Perkins, Jr., Director, Walnut Creek Field Office, NRC Region IV
.M. K. Webb, NRC Project Manager, San Onofre Unit 1 M. B. Fields, NRC Project Manager, San Onofre Units 2 and 3 L. C. Carson, Regional Project Inspector, San Onofre Unit 1 J. A. Slot.n, NRC Senior Resident Inspector,-San Onofre Units 2 & 3 S. S. Bajwa, Section= Chief, Decommissioning Section L. Brown, California Department of Health Services A
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