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11 August 1997 <br /> AGE-NC Project No. 95-0118 <br /> Page 9 of 9 <br /> 1. Notify the San Joaquin County Public Health Services - Environmental Health Division <br /> (PHS-EHD) 48 hours prior to- commencement of any work, while securing proper <br /> city/county boring permits. <br /> 2. Mark boring locations at least 48 hours in advance for an Underground.Service Alert.(-USA) <br /> check of underground utilities or pipes. <br /> 3. Advance approximately two to three soil borings to a total depth of approximately 35 feet <br /> bsg utilizing a van-mounted Geoprobe equipped with 1.25-inch diameter probe rods. <br /> 4. Decontaminate all sampling equipment in an Alconox solution and rinse twice with water <br /> prior to each sampling run. <br /> 5. Collect soil samples at five-foot intervals, beginning at a depth of five feet bsg, using a <br /> Geoprobe soil assembly and associated 1.125-inch diameter brass sleeves. <br /> 6. Preserve soil in the second sleeve by covering both ends with Teflon sheets, capping, and <br /> sealing with tape. Label and log samples on a chain-of-custody form. <br /> 7. Store samples in a chilled container and transport to a State-certified laboratory for analysis. <br /> f Selected soil samples will be analyzed for total petroleum hydrocarbons quantified as <br /> gasoline (T_ PH-g) and volatile aromatics (benzene toluene, eth lbenzene and xylenes; <br /> BTE&X) with methyl tertiary-butyl ether (MTBE) in accordance with the EPA methods <br /> 8015m and 8020 and 8260. <br /> 8.. Monitor soil sample duplicates for the presence of volatile organics using a photo-ionization <br /> detector(PID)pre-calibrated to isobutylene. <br /> 9. Log auger returns and soil sample duplicates in accordance with the Unified Soil <br /> Classification System. <br /> 4.3. REPORTING <br /> As remediation of hydrocarbon impacted soil and ground water at this site is implemented,quarterly <br /> reports will be submitted to the PHS-EHD and the CVRWQCB. The quarterly reports will include <br /> analytical results and field readings, and report remedial progress at the site. Quarterly reports will <br /> be reviewed and signed by a California Registered Geologist. <br /> Advanced GeoEnvironmental,Inc. <br />