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I <br /> o Superior PrecisionIna/vtical, Inc. <br /> 1555 Burke, Unit I ■ San Francisco, California 94 124 ■ (415) 647-2081 /fax (415) 821-7123 <br /> TOUCHSTONE DEVELOPMENTS Project 5490-2 <br /> Attn: MICHAEL TAMBRONI Reported 14-October-1993 <br /> pH; by EPA Method 150. 1 <br /> Laboratory Number Sample Identification Matrix <br /> 14810- 2 HSP-IA-D Soil { <br /> RESULTS OF ANALYSIS <br /> Laboratory Number: 14810- 2 <br /> PH: 8.7 <br /> i <br /> vimi <br /> Senior Chemist <br /> k <br /> Account. Advocate <br /> t <br /> f <br /> t <br /> Page 2 of 2 <br /> Certified Laboratories. <br />