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Project No 034-98081 <br /> Appendix A <br /> TABLE III <br /> Groundwater Parameters <br /> H&H Engineering Property <br /> 212 Industrial Drive <br /> Stockton, California <br /> October 2, 1998 Sampling Date <br /> Monitoring Well Purge Volume Temperature pH Specific Electrical <br /> (Gallons) (Degrees Q (Std Units) Conductance (µmhos/cm) <br /> MW-1 2987 206 864 1810 <br /> MW-2 3440 202 830 1600 <br /> MW-3 2277 199 8 70 1790 <br /> Degrees C — Degrees Celsius as measured in the field <br /> }tmhos/em = Micromhos per centimeter as measured in the field <br /> Std units = Standard pH units as measured in the field <br /> TABLE IV <br /> Concentrations of Petroleum Hydrocarbons in Groundwater* <br /> H&H Engineering Property <br /> 212 Industrial Drive <br /> 1 Stockton, California <br /> October 2, 1998 Monitoring Well Sampling <br /> (Concentrations e-cpressed in micrograms per later ag/l) <br /> Sample ID Benzene Toluene Ethylbenzene Xylenes TPH-G <br /> MW-1 4500 ND ND ND 1100 <br /> MW-2 10 ND ND 3 8 ND <br /> MW-3 200 ND ND 6 4 45 <br /> Reporting Limits 0 5 0 5 0 5 0 5 20 <br /> ND = None detected at the detection limited noted <br /> TPH-G = Total petroleum hydrocarbons as gasoline by EPA Method 8015 <br /> * — By EPA Method 8021 B/8015 <br /> KRAZAN& ASSOCIATES, ENC <br /> Ten Offices Serving the Western United States <br /> 3498081 M W <br />