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05/01/97 THU 07 19 F.0 209 912 0123 FGL ENNIRONMENTL 11002 <br /> ENVIRON'HENTAL <br /> r <br /> ANALYTICAL CHEMISTS <br /> March 24, 1997 LAB No- STK 731427-1 <br /> Granite Construction Company RE Organic Analysis <br /> P.0 Box 151 - Matrix Drinking Water <br /> Stockton , CA 95201 <br /> Project/Site- <br /> Sample Description Breakroom Sink Sampled March 11 , 1997 <br /> Sampled by ; Manuel Simental Received Larch 11, 1997 <br /> Container : VOA Extracted N/A <br /> Preservatives; Na2S203, HC1 or NaHSO4 pH < 2 Analyzed March 19, 1997 <br /> QA/QC ID# SP 97031900L A <br /> BTEX METHOD EPA 8020 <br /> SAMPLE SAMPLE LAB BLANK <br /> CONSTITUENT DLR RESULTS DLR RESULTS <br /> ug/L ug/L ug/L ug/L <br /> Benzene 0.3 ND 0 3 ND <br /> Ethyl Benzene 0.3 ND 0 3 ND <br /> Methyl tent-Butyl Ether 5 ND 5 ND <br /> Toluene 0.3 ND 0 , 3 ND <br /> Xylene 0 6 ND 0 6 ND <br /> SAMPLE LAB BLANK - <br /> SURROGATES AR % REC. AR % REC. <br /> BFB 61-130 97 61-130 96 <br /> DLR = Detection Limit for Reporting purposes KCL = Maxirtun Contaminant Levet (--- indicates none determined.)— <br /> ug/L a Micrograms Per Liter (ppi?) Q = Not Detected at or above the DLR_ AR = Acceptable Range <br /> + = DLR adjusted because of dilutions, concentrations, or Limited smiple <br /> See attached for Quality Assurance report If you have any questions, please call <br /> FGL ENVIRONMENTAL <br /> Charles Johnson, B S. <br /> Laboratory Manager <br /> CJ Jgc <br /> i <br /> Cartiordtd Olticea&Laboratory OliiCd&Laboruory Flald 01fice <br /> PO Bar 272 i e53 Cervara0on$tragi 2500 sldgecoacrl Roaa Y14211a CA <br />