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Limited Soil and Groundwater Report-05/24/99 Page 9 <br /> Western Oil&Spreading Site Project No 024 98 <br /> . 9.0 SUMMARY Off' ANALYTICAL RESULTS <br /> A total of 20 soli samples were selected for laboratory analysis The soil samples were analyzed for <br /> the following petroleum constituents TPH-d, TPH-k, TPH-g, BTEX, and MTBE One <br /> groundwater "grab" sample was also collected and analyzed for all of the aforementioned <br /> constituents along with the fuel Oxygenates DIPE, ETBE, and TA The soil and groundwater <br /> "grab"samples were collected on March 23 and 24, 1999 <br /> Soil and groundwater analytical reports are included in Appendix B. <br /> ' 9.1 Soil Analytical Results <br /> The laboratory results for the soil samples collected from the five soil borings are summarized in <br /> Tables 1 The laboratory results for the groundwater samples are summarized in Tables 2 and 2A <br /> TABLE 1 <br /> March 23 and 24, 1999 Soil Results for Western Oil&Spreading Site <br /> 119256 N Highway 99 in Acampo,California <br /> SAMPLE SAMPLE TPH-d TPH-k TPH-g MTBE Benzene Toluene Ethyl xylenes <br /> NUMBER DEPTH mg/kg mg/kg mg/kg mg/kg mglkg mg/kg Benzene mg/kg <br /> mg/kg <br /> ' . B-14 19'/2-20 1,400 1,200 85 <50 <0 007 0 019 041 021 <br /> B-1-5 24%z-25 2,700 2,100 220 ND<0 4 ND<0 02 015 041 11 <br /> B-1-6 29%-30 30,000 18,000 590 ND<0 4 ND<0 05 025 2.8 69 <br /> B-1-7 34'/2-35 64 32 <10 <50 <03 <03 <03 <06 <br /> B-1-8 391/2-40 730 530 17 <5 0 <0 3 0 006 0 019 <0 6 <br /> B-2-3 14%-15 1 1 00 970 52 <5 0 ND<0 01 ND<o 01 921 047 <br /> B-2-5 24%2-25 27 16 < 10 <50 <03 <03 <03 <06 <br /> B-2-6 291/2-30 13,000 11,000 230 ND<0 4 ND<0 02 024 073 19 <br /> ' B-2-7 1 34%2-35 <10 <10 <10 <50 <03 <03 <03 <06 <br /> B-2-8 39%-40 < 10 <10 < 10 <50 <03 <03 <03 <06 <br /> B-3-5 241/2-25 <10 <10 <10 <50 <03 <03 <03 <06 <br /> B-3-8 391/2-40 <10 <10 < 10 <50 <03 <03 <03 <06 <br /> B-4-3 141/,-15 I 00 1,700 74 <5 0 ND<o 01 ND<Q 01 012 0 071 <br /> B-4-5 24'/:-25 29 30 < 10 <50 <Q3 <03 <03 <06 <br /> B-4-6 29%2-30 < 10 <10 < 10 <50 1 <03 <03 <03 <06 <br /> ' #California Department None 0 035 001 0150 0700 1 750 <br /> of Health Services Listed <br /> primary maximum <br /> contamination level for <br /> drinking water <br />