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Superior Pecision Ana/ i <br /> yt cal, Inc. <br /> 1555 Burke, Unit I - San Francisco, California 94124 ■ (4 15) 647-2081 /fax (415) 821-7123 <br /> TOUCHSTONE DEVELOPMENTS <br /> Attn: MICHAEL TAMBRONI Project 5490-2 <br /> Reported 14-October-1993 <br /> METHOD 8270 SEMIVOLATILE ORGANICS BY GC/MS <br /> Chronology Laboratory Number 14810 <br /> Identification Sampled Received Extracted Analyzed Run # Lab # <br /> HSP-IA-D 10/08/93 10/08/93 10/11/93 10/13/93 2 <br /> Page 1 of 7 <br /> Certified laboratories <br />