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superior Precision Ana/ytical Inc_ <br /> 1555 Burke, Unit I • San Francisco, California 94124 (415) 647-2081 / fax (4 5j 321-7 123 <br /> TOUCHSTONE DEVELOPMENTS Project 8632-1 <br /> Attn: JEFF MONROE Reported 25-May-1994 <br /> EPA SW-846 METHOD 8270 SEMIVOLATILE ORGANICS BY GC/MS <br /> Laboratory Number Sample Identification Matrix <br /> 15540- 1 WSP-1 (A-C) Soil <br /> 15540-11 WO-E Soil <br /> 15540-12 WO-W Soil <br /> 15540-13 SUMP Soil <br /> RESULTS OF ANALYSIS <br /> Laboratory Number: 15540- 1 15540-11 15540-12 15540-13 <br /> chrysene: ND<300 ND<300 ND<3000 ND<3000 <br /> bis(2-ethylhexyl)phtha:ND<400 ND<400 ND<4000 ND<4000 <br /> di-n-octylphthalate: ND<300 ND<300 ND<3000 ND<3000 <br /> benzo(b,k) fluoranthene:ND<300 ND<300 ND<3000 ND<3000 <br /> benzo[a]pyrene: ND<300 ND<300 ND<3000 ND<3000 <br /> indeno[1,2 , 3-cd]pyrene:ND<300 ND<300 ND<3000 ND<3000 <br /> dibenzo[a,h]anthracene:ND<300 ND<300 ND<3000 ND<3000 <br /> benzo[g,h, i]anthracene:ND<300 ND<300 ND<3000 ND<3000 <br /> Concentration: ug/Kg ug/Kg ug/Kg ug/Kg <br /> Surrogate % Recoveries -- <br /> 2-fluorophenol: 75 67 69 77 <br /> phenol-d6: 84 75 75 84 <br /> nitrobenzene-d5: 88 84 84 93 <br /> 2-fluorobiphenyl: 86 86 89 102 <br /> 2,4,6-tribromophenol: 94 85 93 80 <br /> terphenyl-dl4 : 100 93 98 109 <br /> Page 4 of 7 <br /> Certified Laboratories <br />