Laserfiche WebLink
AOI-2 <br /> • Five soil borings (AOI2-5 through A0I2-9) will be hand augered to a depth of <br /> approximately 3 feet bgs in the area near the south end of the on-site Pole Rack to further <br /> delineate impacts identified in RI Boring E2-2; and <br /> • Samples will be collected at I and 3 feet in each boring (depth of impact observed in on- <br /> site boring E2-2)and will be analyzed for PAHs using EPA Method 8270C Selective Ion <br /> Monitoring. <br /> AOI-4 <br /> • Two soil borings (AOI4-8 and A0I4-9)will be drilled to a maximum depth of 15 feet bgs <br /> to further delineate impacts observed in RI Boring A3-2. The first five feet in these <br /> borings will be hand augered to a depth of approximately 5 feet bgs; and <br /> • Samples will be collected at 1, 3, 5, 10 and 15 feet in each boring (depth of impact <br /> observed in on-site boring A3-2) and will be analyzed for PAHs using EPA Method <br /> 8270C Selective Ion Monitoring and TPH using EPA Method 8015. <br /> • 1 soil boring(AOI4-10) will be hand angered to a depth of approximately 3 feet bgs. <br /> • Samples will be collected at 1 and 3 feet in each boring (depth of impact observed in on- <br /> site boring E2-2) and will be analyzed for PAHs using EPA Method 8270C Selective Ion <br /> Monitoring and TPH using EPA Method 8015. <br /> AOI-5 <br /> • One soil boring (AOI5-4) will be hand augered to a depth of approximately 3 feet bgs <br /> near the southern end of the Site to further delineate impacts identified in Preliminary <br /> Assessment Sample 1; and <br /> • Samples will be collected at 1 and 3 feet in each boring (depth of impact observed in on- <br /> site boring E2-2) and will be analyzed for PAHs using EPA Method 8270C Selective Ion <br /> Monitoring and Title 22 Metals using EPA Method 6010/7000. <br /> AOI-6 <br /> • Two soil borings (A0I6-3 through A0I64) will be hand augered to a depth of <br /> approximately 3 feet below ground surface (bgs) inside the warehouse to the east of <br /> Boring A3-SG3; and <br /> • Samples will be collected at 1 and 3 feet in this boring (depth of impact observed in on- <br /> site boring A3-SG3) and will be analyzed for PAHs using EPA Method 8270C Selective <br /> Ion Monitoring. <br /> All environmental borings will be screened for impact via visual, olfactory and/or PID readings; <br /> will be backfilled with portland cement with 5% bentonite as required by the San Joaquin <br /> County Environmental Health Division; and the surface will be returned to conditions existing <br /> prior to soil boring operations. A total of 32 samples will be collected for analysis. Parsons will <br /> submit a copy of the investigation findings upon its approval by PG&E, DTSC and released to <br /> Geotracker as public record. <br /> CLOSING <br />