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ZzNORTH <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 /> Y;Steffen Robertson &Kirsten Client Project ID Diamond Lumber#32504 22 Sampled Apr 6, 1992 <br /> }15311 NE 90th Street Matrix Descript Water Received Apr 9, 1992 <br /> IslRedmond,WA 98052 Analysis Method EPA 5030/8015/8020 Analyzed Apr 20, 1992 <br /> { -043 <br /> Attention Dave Schwieger µ First Sample#. 2044 Reported Apr 29, 1992, <br /> t;'r x • ,x,s,a� xr• t x��,.,..a^�my�^^ ��;,t:oxanxnM*,taxx+a�+esr�u..,.�.�,��nc�4++en..ncevc�.+^prv,4»"Q} ira.n2^'.iceYt{"�""'+'^?�,.'k <br /> ITOTAL PETROLEUM HYDROCARBONS with BTEX DISTINCTION (V TPH-G/BTEX) <br /> Sample Sample Volatile Ethyl Surrogate <br /> I Number Description Hydrocarbons Benzene Toluene Benzene Xylenes Recovery <br /> Fig/L Fig/L !!g/L pg/L p9/L % <br /> (ppb) (ppb) (ppb) (ppb) (ppb) <br /> 204-0434 SRK MW1-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 /> i <br /> 204-0436 SRK-MW3-MAN N D N D N D N D N D 89 <br /> jBLK042092 Method Blank N D N D N D N D N D 85 <br /> i <br /> 1 <br /> Detection Limits 50 0 5o 0 50 0 50 0 50 <br /> Volatile Hydrocarbons are quantitated as gasoline range organics (nC5-nC12) Surrogate recovery reported is far Bromofluorobenzene <br /> Analytes reported as N D were not present above the stated limit of detection <br /> RTH CREEK ANALYTICAL inc Please Mote <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 EW#1210) <br /> The detection limit for Benzene,Toluene,Ethyl Benzene&Xylenes in#204-0434&-0436 = 0 70kg/L <br /> of Cocartour The detection limit for Toluene and Ethyl Benzene in#204-0435 = 6 0 pg/L <br /> 'Laboratory Director <br /> 2040434 SRK 4 1> <br />