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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 - Laboratory Control Sample <br /> Control Limits <br /> ' Spike Percent Percent Lab <br /> Constituent QC Sample ID Type Result Level Units Recovery RPD Recovery RPD Duals <br /> QC Batch ID: BY11740 <br /> ' Chloride BY11740-BS1 LCS 51.873 50.000 mg/L 104 _ 90-110 <br /> Nitrate as N BY11740-BSI LCS 5.1590 5.0000 mg/L 103 90-110 <br /> Sulfate BY11740-BS1 LCS 102.67 100.00 mg/L 103 90-110 <br /> ' QC Batch ID: BY11796 <br /> Total Dissolved Solids Q 180 C BYI1796-13S1 LCS 555.00 586.00 mg/L 94.7 90-110 <br /> ' QC Batch ID: BY11811 <br /> Total Alkalinity as CaCO3 BYI1811-BS3 LCS 94.780 100.00 rng/L 94.8 90-110 <br /> QC Batch ID: BY11886 <br /> Dissolved Calcium BY11886-BS1 LCS 9.8926 10.000 mg/L. 98.9 85-115 <br /> Dissolved Magnesium BY11886-BS1 LCS 9.3344 10.000 mg/L 93.3 85-115 <br /> Dissolved Sodium BY11886-BSt LCS 9.3959 10.000 mg/L 94.0 85-115 <br /> ' Dissolved Potassium BYI1886-BS1 LCS 9.1158 10.000 mg/L. 91.2 85-115 <br /> QC Batch ID: BY12158 <br /> Chloride 13Y12158-BS1 LCS 52.137 50.000 mg/L 104 90-110 <br /> Sulfate BYI2158-BS1 LCS 102.66 100.00 mg/L 103 90-110 <br /> QC Batch ID:TY12193 <br /> ' Biochemical Oxygen Demand-Seeded BYI2193-BS1 LCS 188.59 198.00 mg/L 95.2 85-115 <br /> QC Batch ID: BYI2439 <br /> Dissolved Calcium BY12439-BSI LCS 10.005 10.000 mg/L 100 85-115 <br /> ' Dissolved Magnesium BYI2439-BS1 LCS 10.532 10.000 mg/L. 105 85-115 <br /> Dissolved Sodium BYI2439-BSI LCS 9.5356 10.000 mg/L 95.4 85-115 <br /> Dissolved Potassium BYI2439-BS1 LCS 9.3405 10.000 mg/L 93.4 85-115 <br /> 1 <br /> ' The results in this report apply to the samples analV:ed in accordance with the chain of custoo.Y document This analytical report most be reproduced in its entirety. <br /> All results listed in this report arc for the exclusive use of the submitting Vans.BC Labomtarus.Inc.assumes no ttsVonaibility for morn alteration,sepamtioa,detachment or third party inmonetation. <br /> Report ID: 1000403977 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 w .bclatetcom Page 39 of 45 <br /> 1 <br />