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0 i <br /> Superior Precisior7 .1 natvtical, Inc. <br /> 1555 Burke Unit I • San Francisco California 94124 ■ (4 15) 647-2081 /fax (4 15) 821-7123 <br /> Touchstone Developments Project 2396-1 <br /> Attn: MICHAEL TAMBRONI Reported 09/01/93 <br /> TOTAL PETROLEUM HYDROCARBONS <br /> Lab # Sample Identification Sampled Analyzed Matrix <br /> 14713- 1 SP-1A-D 08/25/93 08/30/93 Soil <br /> 14713- 2 SP-2A-D 08/25/93 08/30/93 Soil <br /> 14713- 3 WO-1-9 ' 08/25/93 08/30/93 Soil <br /> 14713- 4 D-1-9 ' 08/25/93 08/30/93 Soil <br /> RESULTS OF ANALYSIS <br /> Laboratory Number: 14713-- 1 14713- 2 14713- 3 14713- 4 <br /> F. r. s? <br /> Gasoline: NA ND<1 ND<1 NA <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<. 015 ND<. 015 ND<. 015 ND<. 015 <br /> Diesel: 21 4 ND<1 ND<1 <br /> Oil and Grease: NA ND<50 ND<50 NA <br /> Concentration: mg/kg mg/kg mg/kg mg/kg <br /> Page 1 of 2 <br /> Certified Laboratories <br />