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Table 2 <br /> Proposed Sampling Program and Rationale <br /> Bellota Substation <br /> Bellota,California <br /> Total Depth Target Soil Sampling Depth <br /> Proposed Boring ID of Boring (feet bgs) Analyses Sampling Rationale <br /> (feet bgs) <br /> P-1, P-2,and P-3 10 6 inches(just below aggregate TPH-e, MC, PCBs, Assess soil conditions adjacent to transformer repair building and beneath <br /> base) Metals assocaited transformer handling tower;If impacted soil observed,adjust <br /> sample depth to collect most impacted soil in upper 2 feet <br /> 5 TPH-e, MC, PCBs, If impacted soil observed below 2 feet,adjust sample depth to collect from most <br /> Metals impacted soil below 2-foot depth; If only soil in 0-2-foot interval appears <br /> impacted,collect an additional sample just below impacted zone and submit <br /> sample on HOLD • <br /> 10 TPH-e, MC,PCBs, If impacted sail observed below 7 feet,adjust sample depth to collect from most <br /> Metals impacted soil below 7-foot depth; If impacted soil observed below 7-foot depth, <br /> collect an additional sample at deeper depth below observed impact zone <br /> P-4,P-5 and P-6 10 6 inches Oust below aggregate TPH-e,MC,PCBs, Assess soil conditions at former oil ASTs and associated former pump <br /> base) Metals house; If impacted soil observed,adjust sample depth to collect most impacted <br /> soil in upper 2 feet <br /> 5 TPH-e,MC, PCBs, If impacted soil observed below 2 feet,adjust sample depth to collect from most <br /> Metals impacted soil below 2-foot depth; If only soil in 0-2-foot interval appears <br /> impacted,collect an additional sample just below impacted zone and submit <br /> sample on HOLD <br /> 10 TPH-e, MC,PCBs, If impacted soil observed below 7 feet,adjust sample depth to collect from most <br /> Metals impacted soil below 7-foot depth;If impacted soil observed below 7-foot depth, <br /> collect an additional sample at deeper depth below observed impact zone <br /> Soil Sample from Drum(s) NA TPH-e, MC,PCBs, Collect one composite soil sample from drum(s)for IDW characterization <br /> Metals <br /> Decon Water Sample from NA TPH-e, MC,PCBs, Collect one water sample from drum(s)for IDW characterization <br /> Drum(s) Metals <br /> TPH-e=extractable total petroleum hydrocarbons using EPA Method 8015M,quantified into C ranges <br /> MC=moisture content using EPA Method 160.3 <br /> PCBs=polychlorinated bisphenyls using EPA Method 8082 <br /> Metals=CAM 17 Metals using EPA Methods 6010B/7470A <br /> bgs=below ground surface <br /> Page 1 of 1 <br />