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TABLE 2 <br /> CHEMICAL ANALYSIS - GROUNDWATER <br /> Diesel Performance <br /> Stockton, California <br /> (Page 7 of 7) <br /> Sample ID Date MTBE B T E X TPHg TPHk TPHd <br /> ug/I u9/1 u9/1 ug/I ug// u9/1 ug/I u9/1 <br /> MW7 12/12/01 <2 V) <0 5 <0 5 <0 5 <1 0 <60 <50 <50 <br /> 10/25/02 <2 0(4) <05 <05 <0 5 <1 0 <50 <50 <50 <br /> 01/23/03 <2 0f41 <0 5 <0 5 <05 <1 0 <50 <50 <50 <br /> 04/07/03 <2 0141 <0 5 <05 <05 <1 0 <50 <50 <50 <br /> 07/09/03 <2 0`41 <0 5 <0 5 <0 5 <1 0 <50 <50 <50 <br /> 10/20/03 <2 01" <0 5 <0 5 <0 5 <1 0 <50 <50 <50 <br /> 01/13/04 <2 0141 <0 5 <0 5 <05 <1 0 <50 <50 <50 <br /> 04/07/04 <2 0141 <0 5 <05 <0 5 <1 0 <50 <50 <50 <br /> 07/08/04 <0 5141 <0 5 <0 5 <0 5 <1 0 <60 <50 <50 <br /> 10/06/04 <0 5141 <0 5 <0 5 <0 5 <1 0 <50 <50 <50 <br /> . 01/13/05 <0 5p41 <0 5 <0 5 <0 5 <0 5 <50 <50 <50 <br /> 04/18/05 <0 5145 <0 5 <05 <0 5 <1 0 <60 <50 <50 <br /> 07/15/05 NS NS NS NS NS NS NS NS <br /> CPT1 12/13/01 <2 0141 <0 5 <0 5 <0 5 <1 0 <50 <50 <50 <br /> MCLS NA 130 1 0 150 700 1,750 NE NE NE <br /> NOTES <br /> ugll = Micrograms per liter = Parts per Billion (ppb) <br /> MTBE. = Methyl Tertiary Butyl Ether by EPA Method 8260 or 82606 <br /> B — Benzene by EPA Method 8020 or 8021 B <br /> T = Toluene by EPA Method 8020 or 8021 B <br /> E = Ethylbenzene by EPA Method 8020 or 8021 B <br /> X = Xylenes by EPA Method 8020 or 8021 B <br /> TPHg = Total Petroleum Hydrocarbons as Gasoline by EPA Method 8015 or 8015B <br /> TPHk = Total Petroleum Hydrocarbons as Kerosene EPA Method 8015 or 801 5B <br /> TPHd Total Petroleum Hydrocarbons as Diesel by EPA Method 8015 or 801513 <br /> NE None Established <br /> NA = Not Analyzed for that constituent <br /> NS = Not Sampled <br /> < = Not Detected at or Above Stated Method Detection Limit <br /> 1 = Sample analyzed by 8260 for fuel oxygenates including Ethanol t-Butanol, Di-Isopropyl Ether, Ethyl t-Butyl Ether, <br /> and t Amyl Methyl Ether These fuel oyxgenates were below method detection limits <br /> 2 = Unidentified hydrocarbon, see laboratory report <br /> 3 = Overlapping chromatogram patterns, see laboratory report <br /> 4 — Sample analyzed by 82606 for fuel oxygenates including t-Butanol, Di-Isopropyl Ether, Ethyl t-Butyl Ether, <br /> t Amyl Methyl Ether, 1 2 Dichloroethane, and 2 Dibromoethane These fuel oyxgenates were below method <br /> detection limits <br /> S 1625771TABLESIwat-TABL DOC <br />