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Ift M M M M M M <br /> TA E 0 M1 <br /> SUMMARY OF GROUNDWATER MEASUREMENTS AND ANALYTICAL RESULTS <br /> Farmer Property, Stockton, CA <br /> Page 8 of 8 <br /> measured in feet (Reported in u <br /> Well ID Date Wellheadl Depth to GW TPHg Benzene I Toluene Ethyl �nsJMTBEJ ETBE I TBA DIPE TAME Lead <br /> Elevationj Water Elevation I Benzene <br /> SB12-W - - - < <40 <400 <40 <40 NA <br /> S613-W 12/11/01** - - - <50 <0 5 <0 5 <0 5 <1 0 <2 0* <2 0 <20 <2 0 <2 0 NA <br /> SB14-W 12111101** - - - <50 <0 5 <0 5 <0 5 <1 0 <2 0* <2 0 <2 0 <2 0 <2 0 NA <br /> SB15-W 12111101** - - - <50 <0 5 <0 5 <0 5 <1 0 <2 0* <2 0 <20 <2 0 <2 0 NA <br /> SB16-W 12/11/01** - - - <50 <0 5 <0 5 <0 5 <1 0 <2 0* <2 0 <20 <2 0 <2 0 NA <br /> Notes <br /> Wellheads surveyed by a California Licensed well surveyor on March 15, 2002 <br /> ugll denotes micrograms per liter or parts per billion <br /> < denotes not detected at or above Stated Method Detection Limit <br /> TPHg denotes Total Petroleum Hydrocarbons as gasoline, analyzed by EPA Method 5030/8015 <br /> MTBE denotes methyl tertiary butyl ether by EPA Method 8020 unless otherwise noted <br /> ETBE denotes ethyl tertiary butyl ether by EPA Method 8260 or 8260B <br /> TBA denotes tertiary butyl ether by EPA Method 8260 or 8260B <br /> DIPE denotes di-isopropyl ether by EPA Method 8260 or 8260B <br /> TAME denotes tertiary amyl methyl ether by EPA Method 8260 or 8260B <br /> CW denotes Canepa (adjacent property owner)Well located on Farmer property <br /> NA denotes not analyzed <br /> NS denotes not sampled <br /> *denotes MTBE analyzed by EPA Method 8260 or 8260B <br /> **denotes sample was also analyzed for 1,2-dichloroethane and ethyl dibromide by EPA Method 82606, but was not detected <br /> W 1625964TABLBS%GWTAB2a <br />