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�r +r rr r rr r� r■� r rr r� �■r rr rr r r■i rrrr r TAVE 1 SUMMARY OF GROUNDWATER MEASUREMENTS AND ANALYTICAL RESULTS Farmer Property, Stockton, CA Page 8 of 8 (measured in teet. (Reported in ug Well ID Date Wellhead Depth to I GW TPHg Benzene Toluene Ethyl Xylenes MTBEJ ETBE TBA DIPE TAME Lead Elevation Water JElevationlBenzene <25 <25 <250 <25 <25 NA AS2 01118102** 1249 2267 -1018 130,000 7,600 8,900 3,000 16,000 <50 <50 <500 <50 <50 NA SB10-W 03/03/99 - - - 1,010 <0 500 <0 500 <0 500 <0 500 2 21* <2 00 <100 <2 00 <2 00 NA SB11-W 03/03/99 - - - 212 <0 500 <0 500 <0 500 <0 500 <2 00* <2 00 <100 <2 00 <2 00 NA SB12-W 12111101** - - - 71,000 350 45 1,200 9,400 <40* <40 <400 <40 <40 NA SB13-W 12/11/01** - - - <50 <0 5 <0 5 <0 5 <1 0 <2 0* <2 0 <20 <2 0 <2 0 NA S1314-W 12/11/01** - - - <50 <0 5 <05 <0 5 <1 0 <2 0* <2 0 <2 0 <2 0 <2 0 NA SB15-W 12111101** - - - <50 <0 5 <0 5 <0 5 <1 0 <2 0* <2 0 <20 <2 0 <2 0 NA SB16-W 12111!01** - - - <50 <0 5_L <05 <0 5 1 <1 0 <2 0* <2 0 <20 1 <20 1 <2 0 1 NA Notes Wellheads surveyed by a California Licensed well surveyor on March 15, 2002 ugll denotes micrograms per liter or parts per billion < denotes not detected at or above Stated Method Detection Limit TPHg denotes Total Petroleum Hydrocarbons as gasoline, analyzed by EPA Method 503018015 MTBE denotes methyl tertiary butyl ether by EPA Method 8020 unless otherwise noted ETBE denotes ethyl tertiary butyl ether by EPA Method 8260 or 82606 TBA denotes tertiary butyl ether by EPA Method 8260 or 82606 DIPE denotes di-isopropyl ether by EPA Method 8260 or 8260B TAME denotes tertiary amyl methyl ether by EPA Method 8260 or 8260B CW denotes Canepa (adjacent property owner)Well located on Farmer property NA denotes not analyzed NS denotes not sampled *denotes MTBE analyzed by EPA Method 8260 or 82606 "*denotes sample was also analyzed for 1,2-dichloroethane and ethyl dibromide by EPA Method 82608, but was not detected W 162 5961TA B L E S 1G W f A B 2 a