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CASTLE ANALYTICAL LABORATORY <br /> Environmental Testing Services 2333 Shuttle Drive, Atwater, CA 95301 Phone: (209) 384-2930 <br /> Certificate No, 2480 Fax: (209) 384-1507 <br /> Technicon Engineering Client Project ID: 180321 Received: 10-07- <br /> 4539 N. Brawley #108 Lab Reference Number: H9100705 / WO# 1910022 Reported: W-16-19 <br /> Fresno, CA 93722 Matrix: Soil <br /> Attn: Steve Curra Customer Number: 963 <br /> Polychlorinated Biphenyls (PCBs) as Aroclors <br /> Extracted by EPA method 3550 Analyzed by EPA method 8082 <br /> The following QC data applies to sample PH9100021-0024 <br /> from Lab report # H9100705 <br /> Batch Preparation Date: 10-08-19 <br /> MATRIX SPIKES: <br /> SPIKED SAMPLE: PH9100024 MS, MSD, LCS spiked with Aroclor 1260 <br /> SAMPLE SPIKE <br /> RESULT ADDED RESULT PERCENT RECOVERY SURROGATE <br /> (mg/kg) (mg/kg) (mg/kg) RECOVERY LIMITS RECOVERY <br /> MS 0.000 0.500 0.511 102% 70% - 130% 114% <br /> MSD 0.000 0.500 0.514 103% 70% - 130% 114% <br /> RPD: 0.6% <br /> RPD LIMIT: 20% <br /> CONTROL SPIKE (LCS): <br /> SPIKE <br /> ADDED RESULT PERCENT RECOVERY SURROGATE <br /> (mg/kg) (mg/kg) RECOVERY LIMITS RECOVERY <br /> 0.500 0.509 102% 80% m120% 114% <br /> BLANK: <br /> SURROGATE RECOVERY : 112% <br /> AROCLOR RESULT REPORTING LIMIT <br /> 1221 NO 0.050 mg/kg <br /> 1016 ND 0.050 mg/kg <br /> 1232 ND 0.050 mg/kg <br /> 1242 ND 0.050 mg/kg <br /> 1248 ND 0.050 mg/kg <br /> 1254 NO 0.050 mg/kg <br /> 1260 ND 0.050 mg/kg <br /> 1268 ND 0.0���50 mg/kg <br /> NOTE: Surrogate compound is 2,4,5,6 Tetrachloro-M-Xylene <br /> APPROVED BY: 1/v'Al{� SVI <br /> James C. Philp /L ry Director or <br /> Clari J. Cone Laboratory Manager <br />