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GROUNDWATER SAMPLING <br /> On September 23, 1999, Michael Dzugaj and John P. Cummings of <br /> JPCA went to the site to collect groundwater samples. Carol Oz, <br /> Sr REHS, SJCEHD inspector was also on site. All three of the <br /> wells needed to have more grout placed in the bore holes. The <br /> grout seals had settled up to 11 feet, not uncommon in deeper <br /> wells with significant sand in the zone to be grouted. <br /> The wells were purged by bailing, by hand, with a clean dedicated <br /> PVC bailer for each well. Approximately three well volummes as <br /> required by the SJCEHD inspector were taken from each well . <br /> After the bailing of three well volummes the depth to water in <br /> the wells was remeasured, as required by the SJCEHD inspector. <br /> The purged groundwater was placed a in 55-gallon drum labeled <br /> awaiting analysis. The wells were considered stabilized when the <br /> following indicator parameters were within the ranges established <br /> below. Temperature (plus or minus 0 . 5 degrees Centigrade) , pH <br /> (within plus or minus 0 . 1 pH unit) and Specific Conductance <br /> (within plus or minus 5% of the reading range) . Well data sheets <br /> are contained in Appendix B. <br /> Three groundwater samples, one from each well, were collected by <br /> a dedicated bailer, placed in two 40 ml VOAs with Teflon septa <br /> and one later glass collection bottle, labeled, held in a cooled <br /> (4 Degrees C) ice chest and transported to a State Certified <br /> Laboratory, under COC documentation, for analyses. <br /> CHEMICAL ANALYSIS <br /> SOIL <br /> The soil samples collected were analyzed for Total Petroleum <br /> Hydrocarbons as Gasoline (TPHG) ; Benzene, Toluene, Ethylbenzene <br /> and Xylene (BTEX) ; Oxygenates; Total Petroleum Hydrocarbons as <br /> Diesel (TPHD) . The samples were analyzed for TPHG by EPA Method <br /> 8015 modified with purge and trap preparation 5030 (GC/FID) with <br /> detection limits of 50ug/l . EPA Method 602 will be utilized for <br /> BTEX with a detection limit of 0. 5ug/l as required by the SJCEHD. <br /> The results of the analysis of the soil samples in parts per <br /> million (PPM) for MW-1, MW-2 and MW-3 are shown in Table 1, . 2 and <br /> 3 respectively. The laboratory data sheets with detection limits <br /> and COC documentation are contained in Appendix B. <br /> 5 <br />