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1 ` <br /> r� CASTLE ANALYTICAL LABORATORY , a ' <br />�I Environmental Testing Services 2333 Shuttle Drive, Atwater, CA 95301 Phone 1209) 384 2930 <br /> Certificate #2079 Fax 1209) 384-1507 <br /> IAdvanced GeoEnvironmental, Inc Client Project ID Flag City Chevron Sampled 6-1 99 <br /> of Northern California Reference Number 2298 Received 6 3 99 <br /> 4005 North Wilson Way Sample Description Water Extracted 6 4-99 <br /> Stockton, CA 95205 Sample Prep/Analysis Method EPA 5030/8015 8020 Analyzed 6-4 99 <br />' Attn Tom Cuellar _ Lab Numbers 2298-1 W, 2W 3W, 4W, 5W `L r Reported 6-15-99 <br /> r � <br />' TOTAL PETROLEUM HYDROCARBONS -GASOLINE _ <br /> WITH BTEX DISTINCTION <br /> 5 <br />' ANALYTE REPORTING LIMIT SAMPLE ID ~'SAMPLE ID SAMPLE ID SAMPLE ID SAMPLE ID <br /> MW 41 ° MW 51 MW2/ MW-7/ ,_MW-6A1 <br />' 6-1 99 6-1-99 6 1-99 6-1 99 6-1-99 i <br /> Jug/L) (ug/L) (ug/L) [uglLl (ug/L) "(ug/L) <br /> F r <br /> IMTBE 050 30 1 0 8 2 24 30 <br /> BENZENE 050 ND` ND ND ND ND <br /> r , <br /> TOLUENE 050 ND ND ND ND ND <br /> ETHYL BENZENE 0 50 ND ND ND ND ND <br /> I TOTAL XYLENES 050 ND ND ND ND ND <br /> GASOLINE RANGE <br /> HYDROCARBONS 50 ND r ND ND ND ND <br /> Report Limit Multiplication Factor 1 4 3 1 1 1 <br /> 1 _ <br /> r <br /> , I � <br /> 1 <br /> 1 <br /> I <br /> Surrogate % Recovery FID 96 0%1 PID 95 7% FID 105%I PID 104% FID 102%I PID 10^"%I FID 101%I PID 100% FID 100%1 PID 49 7% <br /> I Instrument ID W VAR GC1 -VAR-GCI 'VAR-GC1 VAR-GC1 VAR-GC1 <br /> I <br /> Analytes reported as ND were not detected or below the Practical Quantitation Limit <br /> IPractical Quantitation Limit = Reporting Limit x Report Limit Multlplication'Factor <br /> ANALYST '_(� 'f APPROVED BY <br /> r Clad J one aures C Phillips <br /> Environmental Lab Director ' <br /> S <br /> 7 <br />