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t t � Table 3:Summary of Groundwater Analytical Data City of Escalon-Former Arco Mini Mart 1305 Escalon Ave. Escalon,CA Project No.750.2 Wells Date Benzene Toluene Ethyl Total TPH MTBE ETBE DIPE TAME TBA EDB 1,2-DCA ug/L ug/L Benzene Xylenes Gasoline ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L MW-1 4/18/00 62 42 10 57 516 220 ND<5 ND<5 ND<5 ND<20 ND<5 ND<5 7/14/00 9 10 0.9 6 74 23 ND<5 ND<5 ND<5 ND<20 9/1/00 8 5 0.8 7 76 62 ND<10 ND<10 ND<10 ND<40 12/1/00 8 10 2 15 115 58 ND<5 ND<5 ND<5 ND<20 MW-2 4/18/00 ND<.3 ND<.3 ND<.3 ND<.3 ND<50 ND<5 ND<5 ND<5 ND<5 ND<20 ND<5 ND<5 7/14/00 ND<.3 ND<.3 ND<.3 ND<.3 ND<50 ND<5 ND<5 ND<5 ND<5 ND<20 9/1/00 ND<.3 ND<.3 ND<.3 ND<.3 ND<50 ND<5 ND<5 ND<5 ND<5 ND<20 12/1/00 ND<.3 ND<.3 ND<.3 ND<.3 ND<50 ND<5 ND<5 ND<5 ND<5 ND<20 MW-3 4/18/00 ND<.3 ND<.3 ND<.3 ND<.3 ND<50 ND<5 ND<5 ND<5 ND<5 ND<20 ND<5 ND<5 7/14/00 ND<.3 ND<.3 ND<.3 ND<.3 ND<50 ND<5 ND<5 ND<5 ND<5 ND<20 9/1/00 ND<.3 ND<.3 ND<.3 ND<.3 ND<50 ND<5 ND<5 ND<5 ND<5 ND<20 12/1/00 ND<.3 ND<.3 ND<.3 ND<.3 ND<50 ND<5 ND<5 ND<5 ND<5 ND<20 MW-4 12/1/00 ND<.3 ND<.3 ND<.3 ND<.3 ND<50 ND<5 ND<5 ND<5 ND<5 ND<20 MW-5 12/1/00 ND<.3 ND<.3 ND<,3 ND<.3 177 ND<5 ND<5 ND<5 ND<5 ND<20 MW-101 12/1/00 3 45 14 84 852 54 ND<5 ND<5 ND<5 ND<20 ND=non detect. N/A=Not tested. ug/L=micrograms per liter(parts per billion) Hydro-Punch Groundwater Analytical Data Date Borehole Sample Benzene Toluene Ethyl Total TPH MTBE DIPE ETBE TAME TBA PCE Sampled Depth Benzene Xylenes Gasoline Feet ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L 2/12/99 HP-1 640 801 157 997 8,490 710 ND<50 ND<50 ND<50 ND<200 NT 2/23/99 HP-2 6.0 2.0 0.5 3.0 229 44 ND<5 ND<5 ND<5 ND<20 NT 2/23/99 HP-3 ND<0.3 ND<0.3 ND<0.3 ND<0.3 ND<50 ND<5 ND<5 ND<5 ND<5 ND<20 NT 2/12/99 HP-4 2.0 6.0 2.0 11.0 132 8.9 ND<5 ND<5 ND<5 ND<20 NT 2/12/99 HP-5 10.0 32 6.0 33 412 23 ND<5 ND<5 ND<5 ND<20 NT 2/23/99 HP-6 ND<0.3 ND<0.3 ND<0.3 ND<0.3 ND<50 ND<5 ND<5 ND<5 ND<5 I ND<20 NT