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MATRIX ENVIRONMENTAL LABORATORIES <br /> ANALYSIS BTEX, EPA 602 <br /> CLIENT: Helmick & Lerner, Inc. <br /> CONTACT: D. Nakamoto Date Sampled: 3/31/94 <br /> COC No: 4387 Date Received: 3/31/94 <br /> Project No: HLI 10101 Date Extracted: N/A <br /> Sample ID: 1279 Date of Analysis: 4/3/94 <br /> Lab ID: 940748 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 99% ACCEPTABLE RANGE <br /> 70% TO 130% <br /> NOTE: (ND) NOT DETECTED AT OR ABOVE THE REPORTING LIMITS . <br />