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16 October 1996 <br /> AGE-NC Project No. 95-0173 <br /> Page 3 of 3 <br /> the PHS-EHD will be given an opportunity to review samples selected for analysis. <br /> Monitor soil sample duplicates for the presence of volatile organics using a photo-ionization <br /> detector(PID) pre-calibrated to isobutylene. <br /> • Log soil sample duplicates in accordance with the Unified Soil Classification System. <br /> Backfill each probing to surface grade using Portland Type II Cement. <br /> 4.2. GROUND WATER SAMPLING <br /> Grab ground water samples will be collected from selected soil probings. The following procedures <br /> will be performed: <br /> • Collect a grab ground water sample from selected probings. Ground water samples will be <br /> collected using a Geoprobe water sampling assembly. A ground water sample will be <br /> collected at each sampling point it) 40-mlVOA vials containing hydrochloric acid and one- <br /> liter amber bottles_ <br /> • Transmit each ground water sample to a State-certified laboratory under chain-of-custody <br /> procedure. <br /> • Analyze each ground water sample for TPH-g, TPH-d BTE&X and MTBE in accordance <br /> with EPA methods 8015m and 602. <br /> 4.3. REPORT PREPARATION <br /> Upon completion of probing, sampling and laboratory analysis, a report will be prepared summarizing <br /> results of the work performed. The report�vili include rec,imrnendatioI.ns for additional iavestiga*ion <br /> or remediation, if necessary. The report will be in a format acceptable to the PHS-EHD and <br /> CVRWQCB and will be reviewed and signed by a California Registered Geologist. <br />