ARCHIVED REPORTS XR0006787 - 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 Each sample container was promptly fitted 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 for 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 , and March, 1994 quarterly samplings are summarized in Table 3 Table 3 Results of Certified Laboratory Analysis of Groundwater Samples from Monitoring Wells MW-1 , MW-2 , and MW-3 August , 1993 June 24 , 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 320 360 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