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Ta <br /> • Groundwater Monita ng I}�and Analytical Results - <br /> Chevron Service Station#9-9840 <br /> 4344 Waterloo Road <br /> Vertical measurements are in feet Stockton,California Analytical results are in parts per billion(ppb) <br /> Well Ground Depth <br /> [DATE Head Water To TPH- Benzene Toluene Ethyl- Xylenes MTBE <br /> Elev. Eley Water Gasoline Benzene <br /> I <br /> TRIP BLANK <br /> 12/23/98 -- -- <50 <0 5 <0 5 <05 <1 5 <2 5 <br /> 03/19/99 - -- <50 <0 5 <0 5 <0 5 <0 5 <5 0 <br /> 06/11/99 -- <50 <0 5 <0 5 <0 5 <0 5 <2 5 <br /> 09/20/99 -- <50 <0 5 <0 5 <05 <0 5 <2 5 <br /> 12103/99 -- -- <50 <0 5 <0 5 <0 5 <0 5 <2 5 <br /> 03/09/00 -- <50 <0 5 <0 5 <0 5 <0 5 <2 5 <br /> 06/22/00 - -- <50 <0 50 <0 50 <0 50 <0 50 <2 5 <br /> 09/26/00 -- -- -. <50 0 <0 500 <0 500 <0 500 <0 500 <5 00 <br /> EXPLANATIONS <br /> Groundwater monitoring data and laboratory analytical results prior to June 22,2000,were compiled from reports prepared by Blaine Tech Services,Inc <br /> TPH=Total Petroleum Hydrocarbons <br /> MTBE=Methyl tertiary butyl ether <br /> ND=Not Detected <br /> --Not Measured/Not Analyzed <br /> Laboratory report indicates gasoline C6-C12+unidentified hydrocarbons C6-C12 <br /> MTBE by EPA Method 8260 <br /> Laboratory report indicates gasoline C6-C12 <br /> 9-9840 xls/#386846 2 As of 09/26/00 <br />