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R; Inc.-- <br /> Environmental Testing Laboratory Since 1949 <br /> Ground Zero Analysis,Inc. Reported: 10/0512015 15:05 <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 826013, 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: BY12063 Used client sample: N <br /> Bromodichloromethane MS 1521506-63 NO 24.445 25.000 ug/L 97.8 70-130 <br /> MSD 1521506-63 ND 23.313 25.000 ug/L 4.7 93.3 20 70-130 <br /> ' Chlorobenzene MS 1521506-63 ND 24.983 - 25.000 ug/L 99.9 70-130 <br /> MSD 1521506-63 NO 26.198 25.000 ug/L 4.7 105 20 70-130 <br /> Chloroethane MS 1521506-63 NO 18.465 25.000 ug/L 73.9 70-130 <br /> MSD 1521506-63 NO 18.493 25.000 ug/L 0.2 74.0 20 70-130 <br /> ' 1,4-Dichlorobenzene MS 1521506-63 NO 24.797 25.000 ug/L 99.2 70-130 <br /> MSD 1521506-63 ND 26.156 25.000 ug/L 5.3 105 20 70-130 <br /> 1,1-Dichloroethane MS 1521506-63 NO 24.241 25.000 ug/L 97.0 70-130 <br /> ' MSD 1521506-63 NO 23.215 25.000 ug/L 4.3 92.9 20 70-130 <br /> 1,1-Dichloroethene MS 1521506-63 NO 22.514 25.000 ug/L 90.1 70-130 <br /> MSD 1521506-63 NO 22.975 25.000 ug/L 2.0 91.9 20 70-130 <br /> ' Trichloroethene MS 1521506-63 ND 30.842 25.000 ug/L 123 70-130 <br /> MSD 1521506-63 ND 31.406 25.000 ug/L 1.8 126 20 70-130 <br /> 1,2-Dichloroethane-d4(Surrogate) MS 1521506-63 NO 10.210 10.000 ug/L 102 75-125 <br /> ' MSD 1521506-63 ND 8.6000 10.000 ug/L 17.1 86.0 75-125 <br /> Toluene-d8(Surrogate) MS 1521506.63 NO 9.7100 10.000 ug/L 97.1 80-120 <br /> MSD 1521506.63 NO 9.4200 10.000 ug/L 3.0 94.2 80-120 <br /> 4-Bromofluorobenzens(Surrogate) MS 1521506-63 NO 9.5600 10.000 ug/L 95.6 80-120 <br /> MSD 1521506-63 NO 9.6900 10.000 ug/L 1.4 96.9 80-120 <br /> QC Batch ID: BYI2371 Used client sample: Y-Description: MW-7, 09/17/2015 10:46 <br /> ' Bromodichloromethane MS 1523812-02 NO 25.057 25.000 ug/L 100 70-130 <br /> MSD 1523812-02 ND 22.842 25.000 ug/L 9.2 91.4 20 70-130 <br /> Chlombenzene MS 1523812-02 NO 26.201 25.000 ug/L 105 70-130 <br /> ' MSD 1523812-02 ND 24.356 25.000 ug/L 7.3 97.4 20 70-130 <br /> Chloroethane MS 1523812-02 ND 29.319 25.000 ug/L 117 70-130 <br /> MSD 1523812-02 ND 25.951 25.000 ug/L 12.2 104 20 70-130 <br /> 1,4-Dichlorobenzene MS 1523812-02 NO 26.268 25.000 ug/L 105 70-130 <br /> ' MSD 1523812-02 ND 24.854 25.000 ug/L 5.5 99.4 20 70-130 <br /> 1,1-Dichloroethane MS 1523812-02 ND 27.495 25.000 ug/L 110 70-130 <br /> MSD 1523812-02 ND 24.962 25.000 ug/L 9.7 99.8 20 70-130 <br /> 1,1-Dichloroethene MS 1523812-02 ND 28.808 25.000 ug/L 115 70-130 <br /> MSD 1523812-02 ND 25.736 25.000 ug/L 11.3 103 20 70-130 <br /> Trichloroethene MS 1523812-02 ND 29.757 25.000 ug/L 119 70-130 <br /> ' MSD 1523812-02 ND 26.757 25.000 ug/L 10.6 107 20 70-130 <br /> 1,2-Dichloroethane-d4(Surrogate) MS 1523812-02 ND 8.7800 10.000 ug/L 87.8 75-125 <br /> MSD 1523812-02 NO 8.3100 10.000 uglL 5.5 83.1 75-125 <br /> ' The results in this report apply to the samples anale ed in accordance with the chain at"cuflody document.This analytical report must be reproduced in its entirety. <br /> All results listed in this report arefor the exclusive use of the submininp parry. BC Loborarories.Inc.assumes no responsibility for report altereGon,separetion,detachment or third nary inmrpretation. <br /> ReportID: 1000403978 4100 Alas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 inwoo bclabs.win Page 21 of 29 <br /> t <br />