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TABLE 1 <br /> GROUNDWATER MONITORING DATA <br /> ARCO Service Station No 6080 <br /> USEPA Method 8015/8020(DHS LUFT) <br /> 85 Louise Avenue,Lathrop,California <br /> Elevation Static Water Groundwater Groundwater Ethyl- Total <br /> Well Sample Top of Casing Level Elevation Flow TPHG Benzene Toluene benzene Xylenes <br /> Number Date feet ms]) feet b s feet msl Direction µ /L t L prZL µ L �t L <br /> MW-1 P 6123/00 144S 847 601 NE <50 <0 5 <0 5 <0 5 <0 5 <br /> NP 9/8/00 9 53 4 95 Flat 613 ` <0 5 <0 5 <0 5 1 29 <br /> NP 12/11/00 997 451 NE 387 2 <0 5 <0 5 <0 5 1 89 <br /> P 3122/01 891 557 NW 8462 341 <05 <05 <05 <br /> P 6125/01 937 5 11 E <50 <0 5 <0 5 <0 5 <0 5 <br /> P 9124101 1040 4 08 E <50 <0 5 <0 5 <0 5 <0 5 <br /> P 12/3101 1032 4 16 E <50 <0 50 <0 50 <0 50 <0 50 <br /> MW-2 P 6/23/00 1363 773 590 NE <50 <0 5 <0 5 <0 5 <0 5 <br /> NP 9/8/00 8 67 496 Flat <50 <0 5 <0 5 <0 5 <0 5 <br /> NP 12111/00 9 14 449 NE <50 <0 5 <0 5 <0 5 <0 5 <br /> P 3122/01 8 05 5 58 NW <50 <0 5 <0 5 <0 5 <0 5 <br /> P 6125101 8 57 506 E <50 <0 5 <0 5 <0 5 <0 5 <br /> P 9/24/01 958 405 E <50 <0 5 <0 5 <0 5 <0 5 <br /> P 12/3101 949 414 E <50 <0 50 <0 50 <0 50 <0 50 <br /> MW-3 P 6/23/00 14 00 8 11 5 89 NE <50 <0 5 <0 5 <0 5 <0 5 <br /> NP 9/8/00 905 495 Flat <50 <0 5 <0 5 <0 5 <0 5 <br /> NP 12/11/00 951 449 NE <50 <0 5 <0 5 <0 5 <0 5 <br /> P 3/22101 845 5 55 NW <50 <0 5 <0 5 <0 5 <0 5 <br /> P 6/25/01 891 509 E <50 <0 5 <0 5 <0 5 <0 5 <br /> P 9/24/01 994 4 06 E <50 <0 5 <0 5 <0 5 <0 5 <br /> P 12/3101 9 85 4 15 E <50 <0 50 <0 50 <0 50 <0 50 <br /> msl=mean sea level P=Purged <br /> gs=below ground surface NP=Not Purged <br /> <=Below detection limit for the analytical methods used <br /> Chromatogram Pattern Weathered Gasoline C6 C12+Unidentified Hydrocarbons C6 C12 <br /> Chromatogram Pattern Unidentified Hydrocarbons C6 C12 <br /> Arco-6080—Quarterly Data XLS <br /> 1 of 1 Delta <br />