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MATRIX ENVIRONMENTAL LABORATORIES <br /> ANALYSIS BTEX, EPA 602 <br /> CLIENT: Helmick & Lerner, Inc. <br /> CONTACT: D. Nakamoto Date Sampled: 10/19/93 <br /> COC No: 4192 Date Received: 10/20/93 <br /> Project No: Tracy F.D. No 2 HLI 10101 Date Extracted: N/A <br /> Sample ID: NW-1 Date of Analysis: 10/25/93 <br /> Lab ID: 934342 Matrix: WATER <br /> COMPOUND ug/L REPORTING LIMIT <br /> (ppb) (ppb) <br /> BENZENE ND 0. 3 <br /> TOLUENE ND 0. 3 <br /> • ETHYLBENZENE ND 0. 3 <br /> XYLENES ND 0.9 <br /> SURROGATE RECOVERY ACCEPTABLE RANGE <br /> 108% 70% TO 130% <br /> NOTE: (ND) NOT DETECTED AT OR ABOVE THE REPORTING LIMITS . <br />