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Laboratories Inc. <br /> 1 Environmental Testing Laboratory Since 1949 <br /> GReported: 10/O5I2015 15:04 <br /> Ground Zero Analysis,Inc. <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 - Laboratory Control Sample <br /> Control Limits <br /> ' Spike Percent Percent Lab <br /> Constituent QC Sample ID Type Result Level Units Recovery RPD Recovery RPD Quals <br /> QC Batch ID: BY11830 <br /> ' Bmmodichloromethane BY11830-BS1 LCS 22.190 25.000 ug/L 88.8 70-130 - <br /> Chlombemene BY11830-BS7 LCS 24.980 25.000 ug/L 99.9 70-130 <br /> Chloroethane BY11830-BS1 LCS 22.310 25.000 ug/L 89.2 70-130 - <br /> ' 1,4-Dichlorobenzene BY11830-BS7 LCS 25.230 25.000 ug1L 101 70-130 <br /> 7,1-Dichlomethane BYI1830-BS1 LCS 22.430 25.000 ug/L 89.7 70-130 <br /> 1,1-Dichloroelhene BYI1830-BS7 LCS 24.180 25.000 ugfE 96.7 70-130 _ <br /> ' Trichloroethene BY11830-BS1 LCS 22.880 25.000 ug/L 91.5 70-130 <br /> 1,2-Dichloroethane-d4(Surrogate) BYI1830-BS7 LCS 7.9400 10.000 u911- 79.4 75-125 <br /> ' Toluene-d8(Surrogate) BY11830-BS1 LCS 9.8600 10.000 ug/L 98.6 10-121 <br /> 4-Bromofluorobenzene(Surrogate) BY11830-BS7 LCS 92000 10.000 ug/L 92.0 80-120 <br /> 1 <br /> ' The results in this report apply to the samples ana4ied in accordance with the chain of cmand-v document This analytical report must be reproduced in its entirety. <br /> All results luted in this report are for the exclusive use of the submming party. BC Laboretoria,lac.assum s no responsibility foe report ahere�ion,separation,dcreuhment or third Darty interpremtion. <br /> Report ID: 1000403977 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.bclabs.com Page 36 of 45 <br /> 1 <br />