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Superior Precision Inc- <br /> 825 Arnold Drive Suite 1 14 a Martinez California 94553 • [5 10) 229-1512 /fax (5)0) 229 1526 <br /> GROUNDWATER TECHNOLOGY, INC. Project 0207042360610 <br /> Attn: SANDRA LINDSAY Reported 05/25/93 <br /> TOTAL PETROLEUM HYDROCARBONS <br /> Lab ## Sample Identification Sampled Analyzed Matrix <br /> 88650- 2 MW-7 05/18/93 05/20/93 Water <br /> 88650- 4 MW-3 05/18/93 05/21/93 Water <br /> 88650- 6 MW-4 05/18/93 05/21/93 Water <br /> 88650- 8 MW-6 05/18/93 05/21./93 Water <br /> 88650-10 MW-5 05/18/93 05/21/93 Water <br /> 88650-12 MW-1 05/18/93 05/21/93 Water <br /> 88650-14 MW-2 05/18/93 05/21/93 Water <br /> 88650-15 TB-LB 05/16/93 05/21/93 Water <br /> RESULTS OF ANALYSIS <br /> Laboratory Number: 88650- 2 88650- 488650- 6 88650 8 88650-10 <br /> Gasoline : ND<50 ND<50 ND<50 760 2000 <br /> zene : ND<0 . 5 ND<0 . 5 ND<0 . 5 ND<0 . 5 58 <br /> uene : ND<0 . 5 0 8 ND<0 . 5 3 . 7 10 <br /> Ethyl Benzene- ND<0 . 5 0 . 7 ND<0 . 5 1 . 5 170 <br /> Xylenes : ND<1 . 5 3 .7 ND<1 . 5 6 . 0 190 <br /> Concentration- ug/L ug/L ug/L ug/L ug/L <br /> Laboratory Number: 88650-12 88650-14 88650-15 <br /> MW 1 4A V4 'rb <br /> Gasoline - 8800 9700 ND<50 <br /> Benzene: 1900 2000 ND<0 5 <br /> Toluene - 120 25 ND<0 . 5 <br /> Ethyl Benzene - 730 1000 ND<0 . 5 <br /> Xylenes : 840 520 ND<1 . 5 <br /> Concentration: ug/L ug/L ug/L <br /> Page 1 of 2 <br /> Certified Laboratories <br />