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Superior Precision Analytical, Inc. <br /> 1555 Burke, Unit 1 • San Francisco, California 94124 ■ (415) 647-2081 /fax {41 5} 821-7123 <br /> TOUCHSTONE DEVELOPMENTS Project 5490-2 <br /> Attn:' MICHAEL TAMBRONI Reported 14-October-1993 <br /> Oil and Grease by EPA Method 5520F <br /> Laboratory Number Sample Identification Matrix <br /> 14810- 1 H-2-8' Soil <br /> 14810- 2 HSP-IA-D Soil <br /> RESULTS OF ANALYSIS <br /> Laboratory Number: 14810- 1 14810- 2 <br /> Oil and Grease: ND<50 4800 LL <br /> Concentration: mg/kg mg/kg <br /> Page 2 of 3 <br /> Certified Laboratories <br />