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Table 1 <br /> Groundwater 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 (ug/1) a tl (ug/1) (u11)( (U911) (U11)( u " NO) (ug") (ug/1) EDS(ug/1) (u11) <br /> MW 5 07/29/02 513 I') 1361 -848 <50 <0 3 09 <03 12 18,000 <25 <25 150 5,700 <br /> 10107102 1440 9 27 <50 <0 30 042 <0 30 <0 60 29,000 <250 <250 <250 5,600 <br /> 01102103 1387 874 <50 <0 30 0 38 <030 <0 60 41,000 <5 0 <50 230 12,000 <br /> 04/03/03 1361 -848 <50 <0 50 <0 50 <050 <1 0 29,000 <50 <50 370 540 <br /> 07121103 14 25 -912 <50 <0 50 <050 <0 50 <10 10,000 <5 0 <50 <50 41,000 <br /> 10113103 1502 -989 <50 <0 50 <0 50 <0 50 <10 8,800 <100 <100 <100 <1000 <100 <100 <br /> 01/12/04 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 /> 06/22/04 1410 8 97 64121 <0 50 098 <0 50 <10 36 <10 <10 <10 4,900 <10 <10 <br /> 08112104 1460 947 54121 081 094 <0 50 <10 14 <0 50 <0 50 <0 50 180 <0 50 <0 50 <br /> 10/21/04 1479 9 66 <50 <0 50 069 060 <10 380 <0 50 <0 50 35 6,500 <0 50 <0 50 <br /> u94 Micrograms per liter DIPS Dl-isopropyl ether ETBE Ethyl tent b*ether <br /> MSL Mean sea level TPN Total petroleum hydrocarbons TAME Teri amyl methyt ether <br /> bgs Below ground surface MtBE Methyl tort butyl ether TBA Tert butyl alcohol <br /> EDB 1,2 Dibromoethans 12 DCA 1,2 Dichloromethane <br /> 1`t Well casing elevations surveyed by Morrow Surveying on 712102 fel Sample contained compounds in the gasoline range,but the chromatogram pattern was not consistent with the expected pastern <br /> i <br /> Shaw Environmental Inc <br /> N\mncfp I Trojects\Projects186010401€A1DI0R4Q04 11/5/2004 <br />