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TABLE 2 (CONTINUED) <br /> ANALYTICAL RESULTS: SOIL BORINGS <br /> 1399 EAST YOSEMITE,MANTECA,CALIFORNIA <br /> (All results in parts-per-million) <br /> Boring/ Depth (feet Ethyl- TPPH as Ethylene 1,2-dichloro- <br /> Well No. below grade) Date Benzene Toluene benzene Xylenes Gasoline dibromide ethane <br /> MW-1A 10 06/21/90 0.010 0.047 0.035 0.28 32 << << <br /> 15 0.07 1.9 3.3 38 1,400 c< << <br /> 20 20 110 170 950 40,000 « << <br /> 25 < 0.011 0.007 0.055 < « << <br /> MW-4 15.5 06/20/91 < < < < < « « <br /> 23.5 < 0.006 < < < << <br /> MW-5 15.5 06/20/91 < < < < < <c c< <br />�....� 20.5 . < < < < < « « <br /> NOTES: = Results from Earth Treatment Systems. <br /> Resulls from Delta Environmental Consultants,Inc. <br /> Results from Nations Groundwater Associates. MW-1A over-drilled by Aegis in 1991;it is now MW-113. <br /> < = Below detection limits per"Tri-Regional Board Staff Recommendationsfor Preliminary Evaluation and Investigation of Underground <br /> Tank Sites" (August 10,1990)Practical Quantitation ReporlingLimits(for soil). (PQL for BTEX=0.005ppm,TPH as gasoline= 1.0 ppm.) <br /> << = Below indicated detection limits. <br /> TPPH = Total purgeable petroleum hydrocarbons. <br /> Acgla Encu Onminlel.Inc. <br /> October 1.1991 <br />