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- <br /> i <br /> SUMMARY OF GROUND-WATER MONITORING DATA - <br /> Second Quarter 1992 <br /> ARCO Service Station#434 <br /> 501 West Kettleman Lane,Lodi <br /> (micrograms per liter(ug/1) or parts per billion (ppb) <br /> Floating <br /> Well ID Depth to Product Total TPH as <br /> and Sample Sampling Water Thickness Benzene Toluene Ethylbenzene Xylenes Gasoline <br /> Depth Date feet Leet b b b <br /> W-1 A (77) 5112/92 61 57 -- 56 ND ND ND 220 <br /> W-2 well obstructed <br /> W-2A (63) 5112192 6129 -- ND ND ND ND ND <br /> W-2B (86) 5111/92 61 50 -- ND ND ND ND ND <br /> W-3 (69) 5/12192 6109 -- 9,500 850 260 2,200 34,000 <br /> W-4 dry -- -- - - <br /> W-5(69) 5111/92 6072 -- ND ND ND ND ND <br /> W-6 (69) 5/11192 6099 ND ND ND ND ND <br /> W-7 (69) 5/12/92 6038 - ND ND ND ND 70 <br /> W-8(69) 5112/92 6003 - ND ND ND ND ND <br /> W-9(78) 5112192 6298 - 14 ND ND ND 73 <br /> W-10(78) 5/12192 6102 20 07 ND 1 7 400 <br /> W-11 (79) 5/12/92 6111 - ND ND ND ND 80 <br /> W-12(77) 5112/92 6131 - - 48 ND ND ND 170 <br /> TPH -Total petroleum hydrocarbons <br /> ND s Not detected <br /> SarnpbngDoc G71-1701 <br />