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Superior PrecisiOn Analytical, If 7C. <br /> 825 Arnold Drive Suite 1 14 ■ Martinez Californo 94553 ■ {510) 229-1512 /fax (510) 229-1526 <br />�) WESTERN GEO ENGINEERS Project R-603 <br /> Attn GEORGE CONVERSE Reported 03-January-1994 <br /> VOLATILE PETROLEUM HYDROCARBONS <br /> Laboratory Number Sample Identification Matrix <br /> 90824- 1 MW-1 Water <br /> 90824- 2 MW-2 Water <br /> 90824- 3 MW-3 Water <br /> 90824- 4 MW-4 Water <br /> 90824- 5 MW-5 Water <br /> 90824- 6 MW-6 Water <br /> 90824- 7 MW-7 Water <br /> 90824- 8 MW--8 Water <br /> 90824- 9 MW-9 Water <br /> 90824-10 MW-10 Water <br /> RESULTS OF ANALYSIS <br /> Laboratory Number 90824- 1 90824- 2 90824- 3 90824- 4 90824 - 5 <br /> Gasoline 150 15000 6200 ND<50 ND<50 <br /> Benzene ND<O 5 710 8 5 ND<O 5 ND<O 5 <br /> Toluene 1 1 3100 6 8 ND<O 5 ND<O 5 <br /> Ethyl Benzene 1 3 150 21 ND<O 5 ND<O 5 <br /> Total Xylenes 31 2400 730 ND<O 5 ND<O 5 <br /> Concentration ug/L ug/L ug/L ug/L ug/L <br /> Laboratory Number 90824- 6 90824- 7 90824- 8 90824- 9 90824-10 <br /> Gasoline ND<50 ND<50 6300 ND<50 22000 <br /> Benzene ND<O 5 ND<O 5 840 ND<O 5 130 <br /> Toluene ND<O 5 ND<O 5 86 ND<O 5 99 <br /> Ethyl Benzene ND<O 5 ND<O 5 110 ND<O 5 180 <br /> Total Xylenes ND<O 5 ND<O 5 1700 ND<O 5 7200 <br /> Concentration ug/L ug/L ug/L ug/L ug/L <br /> •` Page 2 of 4 <br /> r <br /> Certified Labcratorie5 <br />