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' Laboratories Inc. <br /> Environmental Testing Laboratory Since 1949 <br /> Ground Zero Analysis,Inc. Reported: 10/05/2015 15:04 <br /> 1172 Kansas Avenue Project: City of Escalon,Monitoring Wells <br /> Modesto,CA 95351 Project Number: 5894 <br /> Project Manager: Project Manager <br /> Volatile Organic Analysis (EPA Method 82606, 8010 List) <br /> Quality Control Report - Precision & Accuracy <br /> Control Limits <br /> ' Source Source Spike Percent Percent Lab <br /> constituent Type Sample ID Result Result Added Units RPD Recovery RPD Recovery Quals <br /> QC Batch ID: BYI1830 Used client sample: N <br /> ' Bromodichloromethane MS 1521506-56 NO 22.480 25.000 ug/L 89.9 70-130 <br /> MSD 1521506-56 NO 22.030 25.000 ug/L 2.0 88.1 20 70-130 <br /> Chlorobenzene MS 1521506-56 NO 25.450 25.000 ug/L 102 70-130 <br /> ' MSD 1521506-56 NO 24.360 25.000 ug/L 4.4 97.4 20 70-130 <br /> Chloroethane Ms 1521506-56 NO 22.170 25.000 ug/L 88.7 70-130 <br /> MSD 1521506-56 NO 20.290 25.000 ug/L 8.9 81.2 20 70-130 <br /> ' 1,4-Dichlorobenzene MS 1521506-56 NO 25.150 25.000 ug/L 101 70-130 <br /> MSD 1521506-56 NO 25,390 25.000 ug/L 0.9 102 20 70-130 <br /> 1,1-Dichloroethane MS 1521506-56 NO 22.660 25.000 uglL 90.6 70-130 <br /> MSD 1521506-56 NO 21.270 25.000 ug/L 6.3 85.1 20 70-130 <br /> 1,1-Dichlomethene MS 1521506-56 NO 25.130 25.000 ug/L 101 70-130 <br /> MSD 1521506-56 NO 22.390 25.000 uglL 11.5 89.6 20 70-130 <br /> Trichloroethene Ms 1521506-56 NO 23.450 25.000 ug/L 93.8 70-130 <br /> MSD 1521506-56 NO 21.340 25.000 uglL 9.4 85.4 20 70-130 <br /> 1,2-Dichloroethane-04(Surrogate) MS 1521506-56 NO 8.3000 10.000 uglL 83.0 75-125 <br /> MSD 1521506-56 NO 8.1500 10.000 ug/L 1.8 81.5 75-125 <br /> ' Toluene-08(Surrogate) MS 1521506-56 NO 9.8700 10.000 ug/L 98.7 807120 <br /> MSD 1521506-56 NO 9.7900 10.000 ug/L 0.8 97.9 80-120 <br /> 4-Bromolluorobenzene(Surrogate) MS 1521506-56 NO 9.0500 10.000 ug/L 90.5 80-120 <br /> ' MSD 1521506-56 NO 9.3000 10.000 ug/L 2.7 93.0 80-120 <br /> The results in this report apply to the samples analysed in accordance with the chain of custody document.This analytical report must he reproduced in its entirely <br /> All mutts listed in this report are for the exdusivc use ofthe submiamg perry.BC Laborzmris,Inc.assumes no resporuibiliry for report altcre[ion,separztion,dnachmrnt or third party intemrctation. <br /> Report ID: 1000403977 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.bclabs.com Page 37 of 45 <br />