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<br />CALIFORNIA LABORATORY SERVICES <br /> <br />Page 13 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 th 22B0827 <br />Stockton, CA 95204 <br /> <br />Project Manager: Jonathan HV Lee COC 0: <br />Semivolatile Organic Compounds by EPA Method 8270C - Quality Control <br />Reporting Spike Source %REC RPD <br />Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br />Batch 2201179 - LUFT-DHS GCMS <br />LCS Dup (2201179-BSD1) Prepared & Analyzed: 02/15/22 <br />Acenaphthene 1130 330 gg/kg 1330 84 31-137 7 20 <br />1,4-Dichlorobenzene 1120 330 1330 84 19-116 6 27 <br />2,4-Dinitrotoluene (2,4-DNT) 1330 330 ., 1330 100 28-109 0.07 45 <br />N-Nitrosodi-n-propylamine 1160 330 .. 1330 87 41-126 9 38 <br />Pyrene 974 330 II 1330 73 35-142 8 36 <br />1,2,4-Trichlorobenzene 1220 330 1330 91 38-117 7 23 <br />4-Chloro-3-methylphenol 1340 330 1330 101 26-122 3 33 <br />2-Chlorophenol 1240 330 II 1330 93 25-132 8 45 <br />4-Nitrophenol 1260 830 " 1330 95 11-124 8 45 <br />Pentachlorophenol 1270 830 U 1330 96 17-119 1 47 <br />Phenol 1140 330 1330 86 6-125 8 35 <br />Surrogate: 2-Fluorophenol 1340 1330 101 25-121 <br />Surrogate: Phenol-d6 1330 1330 100 10-110 <br />Surrogate: Nitrobenzene-d5 1260 1330 94 23-120 <br />Surrogate: 2-Fluorobiphenyl 1280 1330 96 30-115 <br />Surrogate: 2,4,6-Tribromophenol 1320 1330 99 19-122 <br />Surrogate: Terphenyl-d14 1360 1330 102 18-137 <br />Matrix Spike (2201179-MS1) Source: 22E0703-02 Prepared & Analyzed: 02/15/22 <br />Acenaphthene 1080 330 gg/kg 1330 ND 81 31-137 <br />1,4-Dichlorobenzene 1010 330 I/ 1330 ND 76 28-104 <br />2,4-Dinitrotoluene (2,4-DNT) 1180 330 1330 ND 89 28-105 <br />N-Nitrosodi-n-propylamine 1090 330 II 1330 ND 82 41-126 <br />Pyrene 890 330 ,. 1330 113 58 35-142 <br />1,2,4-Trichlorobenzene 1090 330 " 1330 ND 82 38-107 <br />4-Chloro-3-methylphenol 1220 330 .. 1330 ND 92 26-103 <br />2-Chlorophenol 1130 330 1330 ND 85 25-102 <br />4-NitTophenol 1190 830 1330 ND 89 11-114 <br />Pentachlorophenol 1550 830 1330 ND 116 17-109 QM-7 <br />Phenol 1050 330 U 1330 ND 79 6-125 <br />Surrogate: 2-Fluorophenol 1190 1330 89 25-121 <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