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' from eight to ten feet was in the capillary fringe Soils from twelve to twenty feet <br /> in depth, consist of medium light brown, loose, medium to coarse grained sand. <br /> 5.2 Laboratory Analytical Results (soils) <br /> Select soil samples were analyzed for hydrocarbons by EPA modified 8015 as <br /> diesel and gasoline, oxygenates and volatile organic compounds by EPA method <br />' 8260 Select samples were analyzed for BTEX by EPA method 8020 (See Scope of <br /> Work, Appendix VI) <br /> Laboratory analytical results showed detections in samples taken from the northern <br /> tank area and areas follows Detections of diesel were encountered in boring GP- <br /> 4 at nine feet bgs in the northern tank area The level detected was 200 parts per <br />' million (ppm) Xylene was also detected in the same boring at levels of 11.0 and <br /> 6 0 ppb. Gasoline, MTBE, other oxygenates and all other volatile constituents <br /> were non detect in the soil samples collected from the northern area borings <br />' Laboratory analytical results showed detections in samples taken from the southern <br /> tank area and the results are as follows- Detections of diesel and MTBE were <br />' encountered in the two geoprobe borings which were located in the center of the <br /> former tank pit The detections were in borings GP-9 and GP-12 Levels of 200 <br /> parts per million (ppm) diesel were encountered in GP-9 at nine feet bgs, and <br /> levels of 64 ppb MTBE were encountered in GP-12 at a depth of nine feet bgs All <br /> other samples were non detect for diesel, gasoline, oxygenates and volatile <br />' constituents. No detections were found in samples taken from borings outside the <br /> former tank pit in the southern area <br /> I <br />' TABLE 1 <br /> SUMMARY OF SOIL ANALYTICAL RESULTS (GEOPROBE) <br />' TOTAL PETROLEUM HYDROCARBONS AS GASOLINE AND DIESEL <br /> OXYGENATES AND VOCs <br /> 1 <br /> Boring Number Sample EPA Method EPA Method EPA Method 8260 MTBE, EPA Method 8020 BTEX(uvu <br />' Depth 8015 Gasoline 8015 Diesel ETBE,TAME,DIPE,TBA, <br /> (Feet) (mg/kg) ppm (Mwwppm Ethanol,Methanol and 8260 VOCs(uglkg}ppb <br /> (ugV peb <br />' GP-1 9 ND ND ND ND <br /> GP-1 20 ND ND ND ND <br />' GP-2 9 ND ND ND ND <br /> Avalon Environmental Consultants Kashmir&Dalwidner Dhoot <br /> 20 Corporate Plaza 9627-001-1 <br /> Newport Beach,California 6 15600S Harlan Road <br /> 1 <br />