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a, <br /> ' CASTLE ANALYTICAL LABORATORY <br /> Environmental Testing Services 2333 Shuttle Drive,Atwater, CA 95301- Phone: (209)3842930 <br /> ' Fax: (209)3841507 <br /> Certificate#2480 <br /> Advanced GeoEnvironmental, Inc. Client Project ID:Grewais Market Sampled:03-22-02 <br /> ' of Northern California Reference Number.4521 Received:03-26-02 <br /> 837 Shaw Road Sample Description:Water Extracted:03-27-02 <br /> Stockton, CA 95215 Sample Prep/Analysis Method:EPA 503018015,8020 Analyzed:03-27-02 <br /> Attn:Tim Cuellar Lab Numbers:4521-1W, 2W,3W,4W Reported:0403-02 <br /> 1 <br /> TOTAL PETROLEUM HYDROCARBONS-GASOLINE <br /> WITH BTEX DISTINCTION <br /> ' ANALYTE REPORTING LIMIT SAMPLE ID SAMPLE ID SAMPLE ID SAMPLE.ID <br /> MW 1 MW 2 MW 3 MW 4 <br /> 03-22-02 03-22-02 03-22-02 03-22-02 <br /> (uglL) (ugiL) (uglL) (ug/L) (ug/L) <br /> ' MTBE 0.50 ND 11 ND ND <br /> BENZENE 0.50 ND 0.76 ND ND <br /> ' TOLUENE 0.50 ND ND ND ND <br /> ETHYL BENZENE 0.50 ND ND ND ND <br /> '. TOTAL XYLENES 0.50 ND 2.4 ND ND <br /> GASOLINE RANGE <br /> i ' HYDROCARBONS 50 ND 110 ND ND <br /> Report Limit Multiplicatlon Factor: 1 1 1 1 <br /> 1 <br /> 1 <br /> ' Surrogate% Recovery: FID:10511 I P$D:105% Flo:1 W%I Pio:100% Flo:9a.0%l AID:98.5% Flo:109%1 PED:149% <br /> Instrument ID: VAR-GCI VAR-GC1 VAR-GCI VAR-GC1 <br /> Analytes reported as ND were not detected or below the Practical Quantitation Limit <br /> Practicai Quantitation Limit=Reporting Limit x Report Limit Multiplication Factor <br /> BY: <br /> APPROVED' ANALYST: AP O <br /> Clari J. Cone Ja . Phillipa <br /> L oratory Director <br /> i <br />