Laserfiche WebLink
report prepared in 1997 by Sierra Pacific following removal of two used oil USTs in <br /> 1990, is included here to provide more complete data regarding the extent of <br /> contamination of the site <br /> The data indicate soil contamination from both gasoline and oil, generally confined to an <br /> area adjacent to the former USTs The two USTs would appear to be the source of the <br /> contamination <br /> Table 2. Sierra Pacific Soil Sample Results <br /> from Report of Investigation Dated 4 February 1997. <br /> Sample ID MTBE2 Benzenez I Toluene lEthylbenzene2 X leve ' I TPH i TOG` <br /> B-1-10 NA NA NA NA NA NA NA <br /> B-1-15 ND ND ND ND ND ND ND <br /> B-1-20 NA NA NA NA NA NA NA <br /> B-1-30 NA NA NA NA NA NA NA <br /> MW-2-10 NA NA NA NA NA NA NA <br /> MW-2-15 ND ND ND 03 13 427 10100 <br /> MW-2-20 NA NA NA NA NA NA NA <br /> MW-2-30 ND ND 005 007 029 43 15000 <br /> B-3-10 ND ND 05 12 6.6 855 NA <br /> B-3-15 NA NA NA NA NA NA NA <br /> B-3-20 ND 006 023 009 062 54 NA <br /> B-3-30 ND 006 021 017 076 126 NA <br /> B-4-10 ND ND ND ND ND ND ND <br /> B-4-15 NA NA NA NA NA NA NA <br /> B-4-20 ND ND ND ND ND ND ND <br /> B-4-30 ND ND ND ND ND ND ND <br /> r Notes <br /> Results are given in ppm <br /> 'Detection limits for analyses on this sample were 1 ppm <br /> "Detection limits for analyses on this sample were 0 005 ppm <br /> ND=Not detected at or above the indicated laboratory detection limit <br /> NA= Sample was not analyzed. <br /> 4.4 Groundwater Sample Analysis Results <br /> Grab samples from MWA and MW-3 were collected on 22 December 1999 after well <br /> development and purging of the monitoring wells as described in the Work Plan dated 28 <br /> January 1999 and in sections 3 3 and 3 4 of this report The results of the laboratory <br /> analyses on two groundwater samples are presented in Table 3 below, in graphical form <br /> in Figure 7 and as complete laboratory data on the laboratory data sheets in Appendix B <br /> Ernnroneenng,Inc. Pnlect No.9"IZ02 9 <br />