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I <br /> 1 <br /> i • <br /> ' 24 November 1997 <br /> • AGE-NC Project No 95-0144 - <br /> ' Page 3 of 3 <br /> meter equipped with a photo-ionization detector (PID)pre-calibrated to isobutylene <br /> 9 Log soil sample duplicates described in accordance with the Unified Soil Classification <br /> ' System <br /> 10 Collect grab water samples from the probing near GP-1 at depths of 25 feet bsg and 40 feet <br /> bsg using a Geoprobe water sampling assembly by advancing the ground water sampling <br /> i assembly to the desired sample depth and retracting the casing to expose 4 feet of screened <br /> PVC casing Water will be retrieved using a positive displacement sample tubing and ball <br /> bearing assembly The ground water samples will be collected into 40-m1 VOA vials and <br /> 1 one-liter amber bottles <br /> 11 Label the ground water sample containers with location, probe number, date and time of <br /> 1 sampling, and the sampler's initials <br /> 12 Store the labeled samples in a chilled container and transport to a state-certified analytical <br /> laboratory for analysis Selected soil and grab water samples will be analyzed for TPH-g, <br /> 1 TPH-d and BTE&X in accordance v ith EPA methods 8015m and 8020/602, respectively <br /> 13 Backfill each probe boring to surface grade with Portland cement <br /> it <br /> 42 REPORT PREPARATION <br /> 1 <br /> Results of probing activities will be included in a Quarterly Report The report will include <br /> ' recommendations for additional investigation or remediation, if necessary The report will be in a <br /> format acceptable to the PHS-EHD and the CVRWQCB and will be reviewed and signed by a <br /> California Registered Geologist <br /> 1 <br /> 1 <br /> 1 <br /> 1 <br /> i <br /> iAdvanced GeoEnr ironmental,Inc <br /> 1 <br />