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i�r �r rr ■r r r r� r ar r �s <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 <br /> Identification Sampled MSL feet b s MSL (u9n) u ll (UI/l (Ug") (U911) (ug/1) u A u l (U911) u 11 <br /> MW-4 07/29/02 4 80[l1 1328 -848 <50 11 <0 3 <03 <0 6 14,000 <5 0 88 160 <50 <br /> 10107102 1412 -932 <50 <0 30 <0 30 <0 30 <0 60 9,600 <5 0 <5 0 110 140 <br /> 01102103 1356 -876 <50 33 073 <0 30 11 14,000 <50 <50 <50 <50 <br /> 04103103 1335 855 <50 <0 50 <0 50 <050 <10 12,000 <50 <50 200 <50 <br /> 07/21103 1393 -913 <50 <0 50 <0 50 <0 50 <1 0 14,000 <5 0 <5 0 250 <50 <br /> MW-5 07/29/02 513111 1361 -848 <50 <0 3 0 9 <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 /> 01/02/03 13 87 -874 <50 <0 30 038 <0 30 <0 60 41,000 <50 <5 0 230 12,000 <br /> 04103/03 1361 -848 <50 <0 50 <0 50 <0 50 <10 29,000 <50 <50 370 540 <br /> 07121/03 1425 -912 <50 <0 50 <0 50 <050 <10 10,000 <5 0 <5 0 <5 0 41,000 <br /> u9q Micrograms W Ider DIPE Di iso l ether <br /> ProPY ETBE Ethyl Cert bufy!ether <br /> MSL Mean sea level TPN Total petroleum hydrocarbons TAME Tert-amyt methyl ether <br /> bgs Below ground surface WE Methyl tert-butyl ether TBA Tert-buryf alcohol <br /> f 11 Well casing elevations surveyed by Morrow Surveying on 712102 <br /> Rl Sample contained compounds in the gasoline range but the chromatogram pattern was not consistent with the expected pattern <br /> NLSacDP12003bds18800401A\101403m1 ShawEnwronmenfal,/ticPage 2 of 2 Rev 0 10114/2003 <br />