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10 {i <br /> Superior Precisic)n Anal.ytical. Inc. <br /> n 1555 Burke Unit I ■ San Francisco California 94124 ■ (4 15) 647-2081 / fax (41 S) 821-7123 <br /> Touchstone Developments Project 2396-1 <br /> Attn: MICHAEL TAMBRONI Reported 01-September-1993 <br /> METHOD 8270 SEMIVOLATILE ORGANICS BY GC/MS <br /> Laboratory Number Sample Identification Matrix <br /> 14713- 2 SP-2A-D Soil <br /> 14713- 3 WO-1-9 ' Soil <br /> RESULTS OF ANALYSIS <br /> Laboratory Number: 14713- 2 14713- 3 <br /> chrysene: ND<330 ND<330 <br /> bis (2-ethylhexyl)phtha:ND<330 ND<330 <br /> di-n-octylphthalate: ND<330 ND<330 <br /> benzo(b,k) f luoranthene:ND<700 ND<700 <br /> benzo[a]pyrene: ND<330 ND<330 <br /> indeno[1, 2, 3-cd]pyrene:ND<330 ND<330 <br /> dibenzo[a,h]anthracene:ND<330 ND<330 <br /> benzo[g,h, i]anthracene:ND<330 ND<330 <br /> Concentration: ug/Kg ug/Kg <br /> -- Surrogate Recoveries -- <br /> 2-fluorophenol: 82% 82% <br /> phenol-d5: 85% 85$ <br /> nitrobenzene-d5: 76% 83% <br /> 2-fluorobiphenyl: 85% 89% <br /> 2 , 4, 6-tribromophenol: 90% 89% <br /> terphenyl-d14 : 94% 98% <br /> Page 4 of 7 <br /> Certified Laboratories <br />