ARCHIVED REPORTS XR0006802 - Laserfiche WebLink

Metadata

Thumbnails

Annotations

purged using clean , disposable , polyethylene bailers until the groundwater was free of significant sand, silt , and/or other grit , and temperature , pH , and electrical conductivity readings stabilized In this case , 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 purring 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 containing sufficient hydrochloric acid preservative to reduce the pH of the sample to less than 2 0 Each sample container was promptly fitted with a teflon-lined screw cap , labeled , placed on ice , and transported under chain of custody to JL Analytical Services , Inc . of Modesto, a California-state certified hazardous waste analytical laboratory As specified by Mr Infurna, 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 the LUFT Method (EPA Modified-8015 ) and EPA Method 8020 ( 602 ) RESULTS OF LABORATORY ANALYSES Copies of the results of certified analyses as received from JL Analytical Services are enclosed within Appendix A These results and those from the August , 1993 quarterly sampling are summarized in Table 1 Table 1 Results of Certified Laboratory Analysis of Groundwater Samples from Monitoring Wells MW-1 , MW-2 , and MW-3 on December 2 , 1993 Date/ Well Depth to TPH-D TPH-G B T E X Number Water ( ppb) (ppb) (ppb) ----------------------------------------------------------- 8/16--18/193 MW-I 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 Page 3