ARCHIVED REPORTS XR0006786 - Laserfiche WebLink

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• over three well volumes of water were removed from each well Measurements acquired attendant to sampling appear on the well monitoring forms enclosed in Appendix A Subsequent to the purging of each well , a groundwater sample was collected in a clean, disposable polyethylene bailer each sample was transferred into one-liter amber glass sample bottles and Volatile Organic Analysis (VOA) vials Earh sample container was promptly fatted with a teflon-lined screw cap , labeled , placed on ice, and transported under chain of custody to Priority Environ- mental Labs of Milpitas Analyses were subsequently performed foz Total Petroleum Hydrocarbons as Diesel (TPH-D) , Total Petroleum Hydrocarbons as Gasoline (TPH-G) , benzene , toluene , ethylbenzene , and total xylenes (BTEX) using EPA Methods 3510/8015 and EPA Methods 5030/8015-8020 ( 602 ) Copies of the results of certified analyses as received from Priority Environmental Labs are enclosed within Appendix A These results and those from the August , 1993 , December , 1993 , March, 1994 , and August , 1994 quarterly samplings are summarized in Table 3 Table 3 • Fesults of certified Laboratory Analysis of Groundwater Samples from Monitoring Wells MW-1 , MW-2 , and MW-3 August , 1993 - August 31 , 1994 Date/ Well Depth to TPH-D TPH-G B T E X Number Water (ppb) (ppb) (ppb) -----------------------------------------------------_- - -_-_ 8/16-18/ 93 MW-1 7 43 ft 240 180 23 0 6 18 18 MW-2 7 12 ft 320 350 19 N D 6 2 MW-3 6 71' ft 150 N D N D N D N D N D 12/2/ 93 MW-1 7 20 ft N D 170 110 3 55 45 MW-2 6 85 ft N D 100 26 7 5 3 MW-3 6 40 ft N D N D N D N D N D N D 03/10 -11/ 94 MW-1 7 14 ft N D 1500 35 7 8 43 28 MW-2 6 81 ft N D 93 N D N D N D 2 3 MW-3 7 34 ft N D 310 11 3 6 6 6 11 Page 6