ML20034D915

Table 2 Mesa Survey Plan Vs Actual Summary

ML20034D915
Person / Time
Site:	San Onofre
Issue date:	05/16/2016
From:	Southern California Edison Co
To:	Office of Nuclear Material Safety and Safeguards
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Download: ML20034D915 (1)

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TABLE 2 - Mesa Survey Plan vs: Actual Summary Structural Surfaces Land Areas Survey Unit Location Direct Beta Surveys Indirect Beta Surveys Gamma Scans Soil Sampling Take 20 random smears of the floor surface in Scan survey all accessible floor surfaces, f - Edison Warehouse, the W-50 warehouse area.

floor monitor preferred. Scan 10 random Building W-50 Take 10 wall smears no higher than 6 above wall locations with a frisker. N/A N/A the floor.

Scan area with SPA-3 in Take 2 or more smears of the inside surface of serpentine path, stopping for g - Units 2 and 3 Laydown Take 3 soil samples in biased locations.

any representative yard/storm drains. If no static surveys at 20 random Area (Took 20 soil samples.)

N/A drains exist, note that on survey map. locations. (Took readings at 40 locations.)

For each building, take 10 random smears of Scan each survey unit with Take 3 soil samples (took 15 soil the floor surface.

Scan survey all accessible floor surfaces SPA-3 in serpentine path, samples/survey unit) in biased locations for Take 6 wall smears no higher than 6 above the h - STAR Yard and Ameron in G-20, G-21, and G-22. Floor monitor stopping for static surveys at each of the two survey units outside the floor.

Laydown Area preferred. Scan 10 random wall locations 20 random locations. cross-hatched area in Reference 1. In the Take 2 or more smears of the inside surface of in each building with a frisker. (Performed 100% scan of cross-hatched area, take a soil sample at any representative yard/storm drains. If no cross-hatched area.) each of the 20 static survey locations.

drains exist, note that on survey map.

Scan area with SPA-3 in Take 2 or more smears of the inside surface of serpentine path, stopping for Take 3 soil samples in biased locations.

i - Mesa Salvage Yard any representative yard/storm drains. . If no static surveys at 20 random (Took 10 soil samples.)

N/A drains exist, note that on survey map.

locations.

Take 10 random smears of the floor surface in Scan survey all accessible floor surfaces, the room.

k - Rm 105, Building G-48 floor monitor preferred. Scan 6 random Take 6 wall smears no higher than 6 above the wall locations with a frisker. N/A N/A floor.

Take 10 random smears of the floor and Scan survey all accessible floor surfaces, accessible wall surfaces near the storage vault l - Source storage vault in floor monitor preferred. Scan 6 random area.

Building E-50 wall locations with a frisker. Take 6 wall smears no higher than 6 above the N/A N/A floor.

Scanned all accessible floor surface with Chemistry Lab Classroom, Took 10 random smears of the floor and floor monitor. Scanned 6 random wall N/A N/A Building E-50 accessible wall surfaces.

locations with a frisker.

Scanned the entire length of the culvert with SPA-3, Storm Drain Culvert N/A N/A Took 6 soil samples in biased locations pausing for static readings at 12 random locations This table originally appeared in Reference 2, Mesa Survey Plan. It is updated here with actual survey information to indicate additional measurements made at managements request.

(Those additions are shown in italics.)