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<br />CALIFORNIA LABORATORY SERVICES <br /> <br />Page 9 of 15 <br />Committed. Responsive. Flexible. <br /> <br />02/17/22 12:03 <br />Precision Enviro-Tech <br />Project: 2020807 <br />3935 N. Coronado Ave Project Number: [none] <br />CLS Work Order #: 22B0827 <br />Stockton, CA 95204 Project Manager: Jonathan HV Lee COC #: <br />Polychlorinated Biphenyls by EPA Method 8082 - Quality Control <br />Analyte <br />Reporting <br />Result Limit Units <br />Spike Source <br />Level Result %REC <br />%REC <br />Limits RPD <br />RPD <br />Limit Notes <br />Batch 2201178 - LUFT-DHS GCNV <br />Blank (2201178-BLK1) Prepared & Analyzed: 02/15/22 <br />Aroclor 1016 <br />Aroclor 1221 <br />Aroclor 1232 <br />Aroclor 1242 <br />Aroclor 1248 <br />Aroclor 1254 <br />Aroclor 1260 <br />Aroclor 1268 <br />ND 20 <br />ND 20 <br />ND 20 <br />ND 20 <br />ND 20 <br />ND 20 <br />ND 20 <br />ND 20 <br />µg/kg <br />Surrogate: Decachlorobiphenyl <br />LCS (2201178-BS1) <br />6.11 8.33 73 <br />Prepared & Analyzed: 02/15/22 <br />50-150 <br />Aroclor 1260 77.2 20 µg/kg 83.3 93 29-131 <br />Surrogate: Decachlorobiphenyl <br />LCS Dup (2201178-BSD1) <br />7.78 8.33 93 <br />Prepared & Analyzed: 02/15/22 <br />50-150 <br />Aroclor 1260 76.0 20 µg/kg 83.3 91 29-131 2 30 <br />Surrogate: Decachlorobiphenyl <br />Matrix Spike (2201178-MS1) <br />5.78 <br />Source: 22B0703-01 <br />8.33 69 <br />Prepared & Analyzed: 02/15/22 <br />50-150 <br />Aroclor 1260 57.2 20 jig/kg 83.3 ND 69 29-131 <br />Surrogate: Decachlorobiphenyl <br />Matrix Spike Dup (2201178-MSD1) <br />5.23 <br />Source: 22B0703-01 <br />8.33 63 <br />Prepared & Analyzed: 02/15/22 <br />50-150 <br />Aroclor 1260 62.5 20 µg/kg 83.3 ND 75 29-131 9 30 <br />Surrogate: Decachlorobiphenyl 5.77 8.33 69 50-150 <br />3249 Fitzgerald Road, Rancho Cordova, CA 95742 I 800.638.7301 I Tel: 916.638.7301 x102 I Fax: 916.638.4510 I www.californialab.com <br />Small Business #2916 I ELAP #1233 I NAICS #541380 I CA SWRCB FLAP Accreditation/Registration Number 1233