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Superior Precision Analytical, Inc. <br /> 1555 Burke Unit 1 • San Francisco California 94124 ■ (4 15) 647-2081 /fax (4 15) 82 1-7 123 w u� <br /> i <br /> Touchstone Developments Project 2396-1 <br /> Attn: MICHAEL TAMBRONI Reported 12/30/93 <br /> TOTAL PETROLEUM HYDROCARBONS <br /> Lab , Sample Identification Sampled Analyzed Matrix <br /> 15049- 1 OX-1-16 ' 12/17/93 12/29/93 Soil <br /> 15049- 2 OX-2-12 ' 12/17/93 12/29/93 Soil <br /> 15049- 3 OX-3-16' 12/17/93 12/29/93 Soil <br /> 15049- 4 OX-4-10' 12/17/93 12/29/93 Soil <br /> 15049- 5 OX-5-12 ' 12/17/93 12/29/93 Soil <br /> 15049- 6 OX-6-16 ' 12/17/93 12/30/93 Soil <br /> 15049- 7 OX-7-12 ' 12/17/93 12/29/93 Soil <br /> 15049- 8 OX-8-16' 12/17/93 12/30/93 Soil <br /> 15049- 9 OX-9-15' 12/17/93 12/30/93 Soil <br /> .r <br /> RESULTS OF ANALYSIS " <br /> Laboratory Number: 15049- 1 15049- 2 15049- 3 15049- 4 15049- 5 <br /> 111oline: ND<1 ND<1 8 ND<1 ND<1 <br /> Benzene: ND<.005 ND<. 005 0.17 ND<.005 ND<. 005 <br /> Toluene: ND<.005 ND<.005 0. 38 ND<. 005 ND<. 005 <br /> Ethyl Benzene: ND<. 005 ND<.005 0.086 ND<. 005 ND<.005 <br /> Total Xylenes: ND<. 005 ND<.005 0. 68 ND<. 005 ND<. 005 <br /> Concentration: mg/kg mg/kg mg/kg mg/kg mg/kg <br /> Laboratory Number: 15049- 6 15049- 7 15049- 8 15049- 9 <br /> Gasoline: ND<1 ND<1 410 ND<1 <br /> Benzene: 0. 010 ND<.005 ND<0. 50 ND<. 005 <br /> Toluene: ND<. 005 ND<.005 6. 7 ND<. 005 <br /> Ethyl Benzene: ND<.005 ND<. 005 6.9 ND<. 005 <br /> Total Xylenes: ND<.005 ND<. 005 46 ND<. 005 <br /> Concentration: mg/kg mg/kg mg/kg mg/kg <br /> Page 1 of 2 <br /> Certified Laboratories <br />