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T <br /> nil <br /> 30-0136-01 <br /> Table 1 <br /> Summary of Results of Ground Water Sampling <br /> Former Mobil oil Bulk Plant <br /> 500 East Grantline Road, Tracy, California <br /> Concentrations in parts per billion (ppb) <br /> w---a--ars•rrrrrrw-rrrrrrr-rrrwars-rrr----r-----------------------a----- --r--r--rrr--rrr----rrr-r---- <br /> WELL DATE OF CASING DEPTH GROUND TPH-D TPH-G B T E X FC Pb LAB <br /> ID SAMPLING/ ELEVATION TO WATER <br /> MONITORING WATER ELEVATION <br /> arrrwwrrsrw---wr.a-rrrrr`rsrrrrar-rrrrrrrrrrrrrsrr:rrrrrrr-:r-rrrrwrrrr-rrrrrrrrra-wr----w--------r-- sr:-rrsrrr i <br /> ------------------------------------------------------------------------------------------------ <br /> EXPLANATION OF ABBREVIATIONS: <br /> TPH-D :Total Petroleum Hydrocarbons as Diesel Pb :Organic Lead <br /> (EPA method 8015 modified) --- :Not Analyzed/Not Measured <br /> TPH-G :Total Petroleum Hydrocarbons as Gasoline NA :Not Applicable/Not Available <br /> (EPA method 8015 modified) ND :Not Detected <br /> B :Benzene (EPA method 8020 or 8240) AEL :American Environmental Laboratories, Inc. <br /> T :Toluene (EPA method 8020 or 8240) CAL :Chromalab, Inc. <br /> E :Ethylbenzene (EPA method 8020 or 8240) PACE :Pace, Inc. <br /> X :Xylenes (EPA method 8020 or 8240) SAL ;Superior Analytical Laboratories, Inc. 11 <br /> PC :Fecal Coliform (Standard Method 908C-quantified in MPN/100 mL; <br /> meaning most probable number of organisms per 100 ml of water). <br /> Note: <br /> # w Top of casing and ground water elevations are expressed as feet above mean sea level (NGVD-1929) . <br /> - Top of casing column was tied to a railroad spike set in island on the approximate centerline of East Grantline Road <br /> 19.5 feet wast from the centerline of the railroad spur tracks by Wes Carpenter on May 7, 1991. <br /> - Fecal Coliform analyzed at Analytical Laboratory. <br /> * - Fecal Coliform analyzed at Pacific Environmental Laboratory. <br /> ** - Elevated reporting limits are due to the presence of a significant concentration of diesel fuel in this sample. <br /> **+ - Does not match typical gasoline pattern. <br /> i <br /> I <br /> I <br /> i <br /> Page 3 <br /> I <br /> I <br /> I <br /> I <br /> a <br />