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i • <br /> EiiSuperior Precision Ana/ytica/, /nc_ <br /> 15S5 Burke Unit I , San Francisco California 94124 ■ (415) 647-2081 / fax (415) 821-7123 <br /> TOUCHSTONE DEVELOPMENTS Project 2396-1 <br /> Attn: MICHAEL TAMBRONI Reported 12/29/93 <br /> TOTAL PETROLEUM HYDROCARBONS <br /> Lab # Sample Identification Sampled Analyzed Matrix <br /> 15043- 7 TX-7-16' 12/15/93 12/21/93 Soil <br /> 15043- 8 TX-8-16' 12/15/93 12/21/93 Soil <br /> 15043- 9 P-1-3 ' 12/15/93 12/20/93 Soil <br /> 15043-10 P-2-3 ' 12/15/93 12/22/93 Soil <br /> 15043-11 P-3-3 ' 12/15/93 12/21/93 Soil <br /> 15043-12 P-4-31 12/15/93 12/20/93 Soil <br /> 15043-13 WO-1-2 . 5' 12/15/93 12/21/93 Soil <br /> RESULTS OF ANALYSIS <br /> Laboratory Number: 15043- 7 15043- 8 15043-- 9 15043-10 15043-11 <br /> stoline: 1.9 ND<1 ND<1 110 ND<1 <br /> Benzene: 0. 011 0. 008 ND<. 005 0. 11 ND<. 005 <br /> Toluene: 0. 013 0. 01 ND<. 005 2 . 6 ND<. 005 <br /> Ethyl Benzene: 0. 013 ND<. 005 ND<. 005 1.4 ND<. 005 <br /> Total Xylenes: 0. 11 0. 035 ND<. 005 9 . 2 ND<. 005 <br /> Diesel: NA NA NA NA NA <br /> Concentration: mg/kg mg/kg mg/kg mg/kg mg/kg <br /> Laboratory Number: 15043-12 15043-13 <br /> Gasoline: ND<1 ND<1 <br /> Benzene: ND< . 005 0. 008 <br /> Toluene: ND<. 005 0. 023 <br /> Ethyl Benzene: ND<. 005 ND<. 005 <br /> Total Xylenes: ND<. 005 0 . 009 <br /> Diesel: NA *930 <br /> Concentration: mg/kg mg/kg <br /> • <br /> Page 1 of 2 <br /> Certified Laboratones <br />