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j � dY � 4 •.i'<� � - pR+'f4ii.ARiSW.hY<4. .wM'�'. �M PROLEM ASSESSMENT REPORT Moore PetroteUm, Inc. 1399 E. Yosemite Avenue; Manteca, GA HGA Project No. 10-90.480 Page 7 samples from MW-1. and MW-3 have shown moderate concentrations (28 and 60 ppm respectively) . The highest concentrations of BTEX constituents and TPH detected in soil samples from soil borings at the site hata been detected in MW-1A• The highest TPH and BTEX concentrat ,.on found at the location of MW-1A is 40,000 and 1,oD0 ppm respe"tively. petroleum constituents have been detected in 111 soil samples taken either from beneath USTs at the site, or from the base of the tank excavation. Sa,aples taken from the south endf, of both the 8,000 gallon and 6,000 gallon tanks have shows the lowest TPH concentrations, 3 and 0.7 ppm respectively. TPH concentrations of the remaining soil samples taken within the tAnk excavati torange from a low of 240 ppm (North end of 6,000 gAllan tank) , o 7300 ppm, (sample B-1) . Table 3 presents a summary of soil analytical results from all soil samples collected at the site. Figure 5 shows the location of soil samples collected at the site. Laboratory reports of all soil samples are presented in Appendix B. TABLE 2 Soil Analytical Results Sample Depth Ethyl- TPH TPH ID :`t Benzene Toluene Benzene Xylenes EDC EDS as diesel MW-1 5 NF NF NF Nr NF 0.33 NF <0. NA 10 0.001 0.007 NF 0.003 NF NF NA 15 0.004 0.005 NF 0.003 NF NF <0.1 NA 20 0.05 0.06 0.42 1.6 NF NF 28.0 NA MW-1A 10 0.010 0.047 0.035 0.28 NF NF 32.0 NF 15 0.07 1.9 3.3 38.0 NF NF 140n.0 NF 20 20.0 110.0 170.0 950.0 NF NF 40000.0 NF (DUP) 20 15.002 90.011 130.007 1000.055 NF NF.0 NF NF35000.3 NF 25 SB-1 5 NF 0.005 NF NF NF NF <0.1 NA 10 NF 0.002 NF NF NF NF <0.1 NA 0.006 NF NF NF NF <0.1 NA 15 NF -0..013----NF-- ----NF-- - - I1F------NF <0.1 NA