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I <br />' 16 February 1999 <br /> AGE-NC Project No 97-0290 <br />' Page 7 of 11 <br /> drums <br />' 3 8 COLLECTION OF GROUND WATER SAMPLES <br /> For both monitoring events,the depth to ground water was measured in each well following purging <br />' to assure a minimum of 80% recharge prior to sampling Water samples were then collected using <br /> new disposable plastic bailers Each water sample was transferred into 40-m1 VOA vials containing <br /> 0 5 ml 18% hydrochloric acid as a sample preservative Samples collected from MW6 and MW7 <br />' were also transferred into orae-liter amber bottles After collection, the samples were properly <br /> labeled,placed in a chilled container and transported under chain-of-custody to MAI Each sample <br /> was analyzed for TPH-g, BTEX and oxygenated compounds in accordance with methods noted in <br />' section 3 5 In addition, ground water samples from MW6 and MW7 were analyzed for TPH-d in <br /> accordance with EPA Method 8015m <br />' <br /> 39 SURVEYING <br />' On 11 January 1999,the casing elevations of wells MW I through MW5 were surveyed to the nearest <br /> 0 01-foot relative to mean sea level as established at a City of Lodi Bench Mark(Table 7) Surveying <br />' was performed by Baumbach & Piazza, Inc On 04 February 1999, the casing elevations of MW6 <br /> and MW7 were surveyed to the nearest 0 01-foot relative to MW4 by representatives of AGE The <br /> survey report sheets are included in Appendix C <br /> 3 10 RECEPTOR WELL SURVEY <br />' The City of Lodi was contacted regarding the location of municipal wells within a 2,000-foot search <br /> radius of the subject property The California Department of Water Resources database and the San <br />' Joaquin County Flood Control and Water Conservation District maps were also examined <br />' 4 0. FINDINGS <br />' Results of laboratory analysis of soil and ground water samples and a discussion of data collected <br /> during field work follows <br /> Advanced GeoEnironmental,Inc <br />