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t <br /> 24 August 1995 <br /> AGE-NC-95-0142 <br /> Page 3 of 6 <br /> r <br /> water analyzer Momtonng well stabilization data and field data sheets are included in Appendix A <br />' Purged water was stored on-site in 55-gallon drums, pending laboratory analysts <br /> 3 2 COLLECTION OF GROUND WATER SAMPLES <br />' Water samples were collected from each purged well using a new, clean disposable plastic bailers <br /> Immediately upon retrieval, the samples were transferred into 40-m1 VOA vials preserved with <br /> hydrochloric acid and transported to McCampbell Analytical, Inc (MAI) in Pacheco, California All <br />' samples were analyzed for TPH-g and BTE&X in accordance with EPA methods 5030 and 602, <br /> respectively The sample from MW-3 was analyzed for total lead and organic lead in accordance with <br /> EPA methods 6010 and Ca Title 22, Chapter 11, Appendix XI, respectively <br /> 33 COLLECTION OF SOIL SAMPLES <br />' On 13 June 1995 three soilg robin s+were established usm g AGE's van-mounted Geoprobe 5400 soil <br /> P <br /> probing machine Each boring was sampled at intervals of five feet, being at a depth of 10 feet Soil <br /> samples were collected using a 1375-inch diameter piston-type sampler loaded with four pre-cleaned <br /> brass sleeves For each sample, both ends of the brass sleeve are covered with alununum sheets, <br />' capped and sealed with tape The samples were then placed in a chilled container and transported <br /> under chain-of-custody to MAI <br />' Sample duplicates were placed in a plastic bag and field screened for the presence of organic vapors <br /> using a photo-ionization (PID Thermo Environmental instruments 580A, 10 OeV, calibrated to <br /> isobutylene) Each probing was advanced to a depth of 40 feet Boring logs are included in Appendix <br /> iB <br /> To avoid cross-contamination, sampling equipment was decontaminated in a non-phosphate detergent <br /> solution, rinsed twice with clean water prior to each sampling r in The probing were back filled with <br /> bentomte chips and then capped with cement The locations of the soil probings are illustrated on <br /> Figure 2 <br /> 34 LABORATORY ANALYSIS OF SOIL SAMPLES <br /> A total of fourteen soil samples were analyzed for total lead and organic lead in accordance with EPA <br /> methods 6010 and Ca Title 22, Chapter 11, Appendix XI, respectively Nine soil samples were <br />' analyzed for TPH-g and BTE&X in accordance with EPA methods 8015m/5030 and 8020, <br /> respectively <br />