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NORTH <br /> _=CREEK <br /> ANALYTICAL <br /> 18939 120th Avenue N E,Suite 101 -Bothell,WA 98011-2569 <br /> Phone (206) 481-9200- FAX(206)485-2992 <br /> Steffen Robertson&Kirsten Client Project ID. Diamorxf Lumber#32504:22 Sampled Apr 6, 1992 <br /> 15311 NE 90th Street Matrix Descript Water Received Apr 9. 1992 <br /> Redmond,WA 98052 Analysis Method. EPA 5030/8015/8020 Analyzed Apr 20, 1992 <br /> Attention. Dave Schwi� First Sample# 204-0434 Re rted Apr 29, 1992 <br /> TOTAL PETROLEUM HYDROCARBONS with BTEX DISTINCTION (WTPH-G/BTEX) <br /> Sample Semple Volatile Ethyl Surrogate <br /> Number Description Hydrocarbons Benzene Toluene Benzene Xylenes Recovery <br /> i Ng P9 yg/L !1g/L Pg/L % <br /> (PP ) (ppb) (Ppb) (Ppb) (ppb) <br /> 204-0434 SRK-MWt-MAN N D N D N D N D N D 90 <br /> 204-0435 SRK MW2 MAN 1,800 220 N D. N D 120 97 <br /> 204-0436 SRK-Mws-MAN N D N D N D N D N D 89 <br /> BLK042092 Method Blank <br /> ND ND ND ND ND 85 <br /> 1 <br /> Detection Limits: 50 0.50 0 50 0 50 050 <br /> olatite Hydrocarbons are quantitated as gasoline range organics(nC5-nC12) Surrogate recovery reported Is for Bromolluorobenzene <br /> Analytes reported as N D were not present above the stated limit of detection <br /> TH CREEK ANALYTICAL Inc Please Note <br /> For this project all organic analyses were performed by North Creek Analytical(Calif ELAP#1267) <br /> and all Inorganic analyses were performed by Sequoia Analytical (Calif FLAP#1210) <br /> The detection limit for Benzene.Toluene,Ethyl Benzene&Xylenes in#204-0434 d,-0436- 0 70pg/L <br /> of Cocanour The detection limit for Toluene and Ethyl Benzene In 0204-0435 - 8 0 pg/L <br /> it <br /> boratory Director <br /> 2040434 SRK <1> <br />