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♦1 On July 11, 1995, six wells were abandoned at the site The three vapor extraction wells (VWA, VWB, and VWC) and groundwater monitonng wells MWl, MW2 and MW8, were abandoned All well abandonment activities were conducted under the direction of Mr Mike Infurna of PHS/EHD Details of the well abandonment project are presented in JDR Environmental's letter-report dated August 10, 1995 The new groundwater monitoring wells extend to about 50 feet below grade Each well is two inches in diameter and is screened with 0 02 inch slotted casing from total depth to 40 feet The well annuli are filled with #3 Monterey sand along the screening, and sealed with bentonite and grout to the surface Each of the wells is sealed with a locking water-tight cap and protected with a traffic-rated vault Further details on well construction specifics are presented in the drilling logs Procedures used for well construction and drilling are presented in Appendix C SOIL ANALYSES During drilling, soil samples were collected at five or ten-foot intervals for geologic logging and laboratory analysis Each sample was screened in the field for volatile emissions using an organic vapor analyzer (OVA) Based on these readings and field observations, soil samples were selected for laboratory analysis A total of 28 soil samples were selected for analysis of total petroleum hydrocarbon (TP14) and benzene, toluene, ethylbenzene, and xylenes (BTEX) by EPA methods 8015/8020 All analyses were performed by American Analytics of Chatsworth, California Procedures used for soil sampling are presented in Appendix C Each soil sample from the new wells had less than detectable levels of TPH and BTEX� These results are presented in Table 1 with the results of previous investigations The analytical data is presented in Appendix D which includes chain of custody and method detection limits The distribution of hydrocarbon in soil is shown on Figure 5 Page 5