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MmIrmm = = lMmobMI mmi MIMIMMIrm <br /> Table 1 <br /> Groundwater Elevations and Analytical Data <br /> Parkinson's Arco <br /> 3250 West Hammer Lane <br /> Stockton,California <br /> Top of <br /> Casing Depth to Groundwater TPH as Ethyl <br /> Sample Date Elevation Water Elevation Gasoline Benzene Toluene benzene Xylenes MtBE DIPE ETBE TAME TBA 1,2 DCA <br /> Identification Sampled MSL feet b s MSL u ll (U911) (ug/1) (ug/1) u tl (ug/1) u ll u ll u A (ug/11 EDB u u l <br /> MW-5 07/29102 513111 1361 -848 <50 <0 3 09 <0 3 12 18,000 <25 <25 150 5,700 <br /> 10/07/02 1440 927 <50 <0 30 042 <0 30 <0 60 29,000 <250 <250 <250 5,600 <br /> 01/02103 1387 874 <50 <0 30 038 <0 30 <0 60 41,000 <5 0 <50 230 12,000 <br /> 04/03/03 1361 848 <50 <0 50 <0 50 <0 50 <10 29,000 <5 0 <5 0 370 540 <br /> 07/21/03 1425 -912 <50 <0 50 <0 50 <0 50 <10 10,000 <50 <5 0 <50 41,000 <br /> 10/13103 1502 989 <50 <0 50 <0 50 <0 50 <1 0 8,800 <100 <100 <100 <1000 <100 <100 <br /> 01112104 14 31 -918 <50 <0 50 <0 50 <0 50 <10 1,300 <0 50 <0 50 15 19,000 <0 50 <0 50 <br /> 06122/04 1410 -897 64121 <0 50 0 98 <0 50 <10 36 <10 <10 <10 4,900 <10 <10 <br /> 08112104 14 60 947 54121 081 094 <0 50 <10 14 <0 50 <0 50 <0 50 180 <0 50 <0 50 <br /> 10121104 1479 9 66 <50 <0 50 069 060 <1 0 380 <0 50 <0 50 35 6,500 <0 50 <0 50 <br /> 01117105 1370 -857 <50 <0 50 <0 50 <0 50 <1 0 580 <25 <25 1 G-,*" 1,400 <2 5 <2 5 <br /> ug/t Micrograms per filer DIPS Di4sopropyl ether ETBE Ethyl tert butyl ether <br /> MSL Mean sea levet TAN Total petroleum hydrocarbons TAME Tort amyl methyl ether a <br /> bgs Below ground surface MTBE Methyl tort butyl ether TBA Tert butyl alcohol <br /> EDB 12 Dibromoethane 1,2 DCA t 2-Dichloromethane <br /> jPJ Well casing elevatons surveyed by Morrow Surveying on 7/2/02 Rl Sample contained compounds in the gasoline range but the chromatogram pattern was not consistent with the expected pattern <br /> Shaw Environmental,Inc <br /> N V ncfptVmjecrslProjects188010401lA1010712005\IQ0511Q05 As 3/21/2005 <br />