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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 /> Water Analysis (General Chemistry) <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 Duals <br /> QC Batch ID: BY11740 Used client sample: Y-Description: MW-9,09/16/2015 10:40 <br /> ' Chloride DUP 1523651-01 56.089 56.097 mg/L 0.0 10 <br /> MS 1523651-01 56.089 109.97 50.505 mg/L 107 80-120 <br /> MSD 1523651-01 56.089 109.87 50.505 mg/L 0.1 106 10 80-120 <br /> ' Nitrate as N DUP 1523651-01 14.538 14.511 mglL 0.2 10 <br /> MS 1523651-01 14.538 19.339 5.0505 mg/L 95.1 80-120 <br /> MSD 1523651-01 14.538 19.292 5.0505 mgiL 0.2 94.1 10 80-120 <br /> Sulfate DUP 1523651-01 35.822 35.947 mg/L 0.3 10 <br /> MS 1523651-01 35.822 144.91 101.01 mill 108 80-120 <br /> MSD 1523651-01 35.822 144.14 101.01 mg/L 0.5 107 10 80-120 <br /> ' QC Batch ID: BY11796 Used client sample: N <br /> Total Dissolved Solids Q 180 C DUP 1523488-01 1035.0 1035.0 mg/L 0 10 <br /> Fixed Dissolved Solids DUP 1523488-01 805.00 795.00 ni 1.2 20 <br /> Volatile Dissolved Solids DUP 1523488-01 230.00 240.00 mg/L 4.3 10 <br /> QC Batch ID: BY11811 Used client sample: N <br /> Total Alkalinity as CaCO3 DUP 1523906-03 476.17 471.31 mg/L _ 1.0 10 <br /> QC Batch ID: BYI1886 Used client sample: N <br /> Dissolved Calcium DUP 1523781-01 105.70 112.03 mg/L 5.8 20 <br /> MS 1523781-01 105.70 111.11 10.204 mglL 53.0 75-125 A03 <br /> MSO 152371 1-01 105.70 115.19 10.204 mg/L 3.6 93.0 20 75-125 <br /> Dissolved Magnesium DUP 1523781-01 18.448 19.901 mglL 7.6 20 <br /> MS 1523781-01 18.448 28.058 10.204 mg/L 94.2 75-125 <br /> ' MSD 1523781-01 18.448 29.662 10.204 mg/L 5.6 110 20 75-125 <br /> Dissolved Sodium DUP 1523781-01 234.95 236.59 mg/L 0.7 20 <br /> MS 1523781-01 234.95 235.72 10.204 mglL 7.5 75-125 A03 <br /> MSD 1523781-01 234.95 244.45 10.204 mi 3.6 93.1 20 75-125 <br /> ' Dissolved Potassium DUP 1523781-01 5.9246 6.1415 mg/L 3.6 20 <br /> MS 1523781-01 5.9246 15.289 10.204 mg/L 91.8 75-125 <br /> MSD 1523781-01 5.9246 15.687 10.204 mg/L 2.6 95.7 20 75-125 <br /> ' QC Batch ID: BYI2158 Used client sample: N <br /> Chloride DUP 1524027-01 22.136 22.148 mg/L 0.1 10 <br /> MS 1524027-01 22.136 75.088 50.505 mg/L 105 80-120 <br /> ' MSD 1524027-01 22.136 75.143 50.505 mg/L 0.1 105 10 80-120 <br /> Sulfate DUP 1524027-01 31.837 32.395 mg/L 1.7 10 <br /> MS 1524027-01 31.837 136.95 101.01 mg/L 104 80-120 <br /> ' MSD 1524027-01 31.837 137.18 101.01 mg/L 0.2 104 10 80-120 <br /> QC Batch ID: BYI2193 Used client sample: N <br /> ' The results in this report apply to the samples analyzed in accordance with the chain ojnrstodp document This analytical report most he reproduced in its entirety, <br /> All results listed in this report are for the exclusive use of the submining parry. BC Lal nmw les,Inc.ssssmes no responsibiliry for report alteration.separation,&U�hm,mt or third parry inarroaatlon. <br /> Report ID: 1000403977 4100 Allas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 vrvrw.bdabs.com Page 40 of 45 <br />