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<br />CALIFORNIA LABORATORY SERVICES <br /> <br />Page 12 of 15 <br />Committed. Responsive. Flexible. <br /> <br />02/17/22 12:03 <br />Precision Enviro-Tech <br /> <br />Project: 2020807 <br />3935 N. Coronado Ave Project Number: [none] <br /> <br />CLS Work Order #: 22B0827 <br />Stockton, CA 95204 <br /> <br />Project Manager: Jonathan HV Lee COC #: <br />Semivolatile Organic Compounds by EPA Method 8270C - Quality Control <br />Analyte Result <br />Reporting <br />Limit Units <br />Spike Source <br />Level Result %REC <br />%REC RP D <br />Limits RPD Limit Notes <br />Batch 2201179 - LUFT-DHS GCMS <br />Blank (2201179-BLK1) Prepared & Analyzed: 02/15/22 <br />4-Nitrophenol ND 830 ug/kg <br />Pentachlorophenol ND 830 <br />Phenol ND 330 <br />2,4,5-Trichlorophenol ND 330 <br />2,4,6-Trichlorophenol ND 330 <br />Surrogate: 2-Fluorophenol 1410 1330 106 25-121 <br />Surrogate: Phenol-d6 1370 1330 103 10-110 <br />Surrogate: Nitrobenzene-d5 1320 1330 99 23-120 <br />Surrogate: 2-Fluorobiphenyl 1310 1330 98 30-115 <br />Surrogate: 2,4,6-Tribromophenol 1160 1330 87 19-122 <br />Surrogate: Terphenyl-d14 1390 1330 104 18-137 <br />LCS (2201179-BSD Prepared & Analyzed: 02/15/22 <br />Acenaphthene 1210 330 µg/kg 1330 91 31-137 <br />1,4-Dichlorobenzene 1190 330 II 1330 90 19-116 <br />2,4-Dinitrotoluene (2,4-DNT) 1330 330 .. 1330 100 28-109 <br />N-Nitrosodi-n-propylamine 1270 330 .. 1330 95 41-126 <br />Pyrene 1060 330 " 1330 79 35-142 <br />1,2,4-Trichlorobenzene 1310 330 1330 98 38-117 <br />4-Chloro-3-methylphenol 1300 330 II 1330 98 26-122 <br />2-Chlorophenol 1340 330 II 1330 100 25-132 <br />4-Nitrophenol 1370 830 II 1330 103 11-124 <br />Pentachlorophenol 1290 830 1330 97 17-119 <br />Phenol 1240 330 .. 1330 93 6-125 <br />Surrogate: 2-Fluorophenol 1350 1330 101 25-121 <br />Surrogate: Phenol-d6 1420 1330 106 10-110 <br />Surrogate: Nitrobenzene-d5 1430 1330 107 23-120 <br />Surrogate: 2-Fluorobiphenyl 1420 1330 106 30-115 <br />Surrogate: 2,4,6-Tribromophenol 1450 1330 109 19-122 <br />Surrogate: Terphenyl-d14 1480 1330 111 18-137 <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 ELAP Accreditation/Registration Number 1233