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CALIFORNIA LABORATORY SERVICES <br />Committed. Responsive. Flexible, <br />=il 011141:0 ie.m <br />Page 3 of 4 <br />Precision Enviro-Tech Project: 9010809 <br />3935 N. Coronado Ave Project Number: [none] CLS \Worh Order #: 19AO357 <br />Stockton, CA 95204 Project Manager: Jonathan HV Lee COC #: <br />Extractable Petroleum Hydrocarbons by EPA Method 8015M - Quality Control <br />Reporting Spike Source %REC RPU <br />nnlyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br />Batch 1900243 - EPA 3510B GCNV <br />Blank (1900243-BLKi) Prepared &Analyzed: 01/10/19 <br />Diesel ND 0.050 mg/L <br />Motor Oil ND 0.050 " <br />S1a•tngale. o-Terpheg0 0.0239 '; 0.0250 96 65-135 <br />LCS (1900243-BS1) <br />Propared &Analyzed; 01/10/19 <br />Diesel <br />1.94 0.050 mg/L <br />2.50 78 <br />65-135 <br />Surrogate. o-Twphe:tyl <br />0.0291 " <br />0.0250 116 <br />65-135 <br />LCS Dup (1900243-BSA_1) <br />Prepared_ &A_nalyzed: 01/10/19 <br />Diesel <br />2.03 0.050 mg/L <br />2.50 81 <br />65-135 4 '30 <br />surrogate.. o-retpheepl <br />0.0280 <br />0.0250 112 <br />6S-135 <br />Matrix Spike (190.0243-MS1) <br />Source; 19A0331-01 <br />Prepared_&An_alyzed:01/10!19 <br />Diesel <br />2.38 0,050 mg/L <br />2.50 ND 95 <br />46-137 <br />Sdrtogate. a-Teiphenvl <br />0.0259 <br />0.0250 104 <br />6S-135 <br />Mntrix Spike Dup (1900243-MSD1) <br />Source:19AO331-01 <br />Prepared & Analyzed: 01/10/19 <br />_ <br />Diesel <br />2.32 0.050 mg/L <br />2.50 ND 93 <br />46-137 2 30 <br />` <br />Surrogate: a-Terphenyl <br />0.0256 _ <br />0.0250 102 <br />65-135 <br />3249 Fltzgerold Road, Rancho Cordova, CA 95742 1800.638.7301 1 Tel: 916.638.7301 x102 I fax: 916.638.4510 i www.caiitornialab.coni <br />small Business 112916 1 ELAP # 1233 1 NAICS #541380 1 CA--SWRCB ELAP Accreditation/Registration Number 1.233 <br />