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� EH,, Superior Precision -,,ia/ytica/, /nc_ <br /> 625 Arnold Drive Surte ) 14 ■ Martinez California 94553 • )510) 229 1512 /fax (510) 229-1526 <br /> Groundwater Technology Inc. Pro3ect 02320-2459 <br /> Attn: James W. Grasty Reported 05/28/92 <br /> TOTAL PETROLEUM HYDROCARBONS <br /> Lab # Sample Identification Sampled Analyzed Matrix <br /> 85783- 1 TB-LB 05/19/92 05/26/92 Water <br /> 8783- 2 MW11 05/19/92 05/26/92 Water <br /> 85783- 3 MW10 05/19/92 05/26/92 Water <br /> 85783- 4 MW9 05/19/92 05/27/92 Water <br /> RESULTS OF ANALYSIS <br /> Laboratory Number: 85783- 1 85783- 2 85783- 3 85783- 4 <br /> Gasoline: ND<50 2800 80 410 <br /> Benzene: ND<0 . 5 1500 18 9 . 4 <br /> Toluene: ND<0 . 5 18 6 . 8 11 <br /> Ethyl Benzene : ND<0 . 5 77 2 . 8 3 . 1 <br /> Xylenes: ND<0 . 5 37 9 . 5 13 6 <br /> Concentration: ug/L ug/L ug/L ug/L <br /> * The rinsate sample that was received as 1 voa broke in the <br /> laboratory. <br /> I <br /> PRgeried LUC3f itori;s <br />