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Calscience Environmen al Laboratories, Inc. <br /> Analytical Quality Control Report <br /> Client: Environmental Audit, Inc. <br /> Work Order No.: 93-12-348 Reviewed by: y � � <br /> Method: EPA 8015M (Aqueous) {DHS Method} <br /> Date(s) Analyzed: 12/22/93 Date Reviewed: 1 1 <br /> Page: 5 of 5 <br /> Matrix Spikg andSpike Replicate Reslilts <br /> [Spike] Replicate Control Limit Control Limit <br /> Anal)de Sam le Added (Matrix Spike %REC iMatnx Spike % EC %REC %RPD %RPD <br /> Total Petroleum <br /> Hydrocarbons 14D 200 1 69 84 1 76 88 65 - 130 4 0-20 <br /> I <br /> Page 5 of 5 notes <br /> 1 All concentration values contained herein are in mg/L(ppm) <br />