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ANALYTICAL CHEMISTS <br /> July 21 , 1995 LAB No STK 533182-7 <br /> Arc Pump & Welding RE Organic Analysis <br /> - 1211 S Turnpike Matrix Monitoring Well <br /> Stockton CA 95206 <br /> Sampling Site. Arc Pump & Welding - <br /> Sample Description Travel Blank Sampled July 13, 1995 <br /> Sampled by Don Light Received July 13, 1995 <br /> Container VOA-TFE Extracted N/A <br /> Preservatives HCl or NaHSO4 pH < 2 Analyzed July 17, 1995 <br /> QA/QC 1D# STK95071700L A <br /> EPA METHOD 602 <br /> SAMPLE SAMPLE LAB BLANK <br /> COiNSTITUENT DLR RESULTS DLR RESULTS <br /> jg/L ug/L ug/L ug/L <br /> Benzene 0 3 NO 0 3 NO <br /> Toluene 0 3 NO 0 3 ND <br /> Total Xylenes 0 3 NO 0 3 NO <br /> Chlorobenzene 0 3 ND 0 3 ND <br /> Ethyl Benzene 0 3 NO 0 3 NO <br /> 1 ,2-Dichlorobenzene 0 3 ND 0 3 NO <br /> 1 ,3-Dichlorobenzene 0 3 NO 0 3 NO <br /> 1 ,4-Dicnlorobenzene 0 3 NO 0 i NO <br /> SAMPLE LAB BLANK <br /> SURROGATES AR % REC AR % REC <br /> BFB 75-125 83 75-125 81 <br /> DLR = Detection Limit for Reporting Purposes MCL = Maximum Contaminant Level {-- indicates none determined ) <br /> ug/L = Micrograms Per Liter (ppb) NO = Not Detected at or above the DLR AR = Acceptable Range <br /> • = DLR adjusted because of dilutions, concentrations, or limited sample <br /> See aztached report for Quality Assurance data if you have any questions , please ca C <br /> rGL ENVIRONMENTAL <br /> Kurt Wilkinson, 8 S <br /> Laboratory Director <br /> TMB ;9c <br /> Corporate Offices A Laboratory Office&Laboratory Field Office <br /> PO Box 272 953 Corporation Street ;=^C Siagecoacn Floao 'fu^atia CA <br />