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• {� Superior Precision AnaIYtical, Inc_ <br /> r PO Box 1 545 ■ Martinez California 94553 - X51 0) 229-1590 / fax (510) 229-0916 <br /> Sierra Environmental Project 1-146-01 <br /> Attn: Sharon Halper Reported 08/07/92 <br /> TOTAL PETROLEUM HYDROCARBONS <br /> Lab # Sample Identification Sampled Analyzed Matrix <br /> 86363- 3 MW-6; 16 . 0 07/30/92 08/06/92 Soil <br /> 86363-11 MW-6; 56 . 0 07/30/92 08/06/92 Soil <br /> 86363-15 MW-1 BOTTOM 07/31/92 08/06/92 Soil <br /> 86363--16 COMP1 , 2, 3, 4 07/31/92 08/07/92 Soil <br /> RESULTS OF ANALYSIS <br /> Laboratory Number: 86363- 3 86363-11 86363--15 86363-16 <br /> Gasoline: ND< 1 ND<1 ND< 1 ND< 1 <br /> Benzene: ND< . 005 ND< . 005 ND< 005 ND< . 005 <br /> Toluene: ND< . 005 ND< . 005 ND< 005 ND< . 005 <br /> Ethyl Benzene: ND< . 005 ND< . 005 ND< . 005 ND< . 005 <br /> Xylenes : ND< . 005 ND< . 005 ND< 005 ND< . 005 <br /> Concentration: mg/kg mg/kg mg/kg mg/kg <br /> KWfi� V" MW t <br /> Page 1 of 2 <br /> Certified Laboratories <br />