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Appendix C-Historical Water Quality City of Lathrop <br /> Consolidated Treatment Facility <br /> Monitoring and Reporting Program 115-2016-0028-03 Rev3 <br /> MWM-1 continued <br /> Total <br /> Date Coliform EC DO ORP Hard- Calcium Magnesium Potassium Sodium Manganese Barium Nickel Bromide Chloride Fluoride Sulfate <br /> Sampled pH Bacteria (uS/cm) (mg/L) (mV) TDS(mg/L) mess (mg/L) (mg/L) (mg/L) (mg/L) Iron(mg/L) (mg/L) (mg/L) (mg/L) Zinc(mg/L) (mg/L) (mg/L) (mg/L) (mg/L) <br /> (per 100 (mg/L) <br /> mL <br /> 5/1/2013 6.85 ND 870 0.46 202 480 240 70 16 20 95 ND 0.10 NA NA NA 0.18 86 NA 77 <br /> 8/2/2013 6.73 NO 849 0.48 98.8 500 230 65 17 2.0 85 NO 0.16 NA NA NA 0.23 92 NA 81 <br /> 11/21/2013 6.72 ND 807 0.22 112.7 450 210 59 15 2.0 84 ND 0.17 NA NA NA 0.19 83 NA 73 <br /> 2/5/2014 6.77 NO 685 0.48 322.3 380 170 48 12 2.0 69 0.08 0.15 NA NA NA 0.15 60 NA 54 <br /> 2/5/2014 6.77 ND 685 0.48 322.3 410 180 52 12 2.0 72 0.08 0.16 NA NA NA 0.19 61 NA 56 <br /> 4/24/2014 6.67 NO 620 0.46 334 380 180 51 12 2.0 63 0.09 0.16 NA NA NA 0.20 55 NA 47.2 <br /> 4/24/2014 6.67 ND 620 0.46 334 360 170 50 12 2.0 62 0.10 0.15 NA NA NA 0.21 55 NA 47.8 <br /> 8/5/2014 6.68 NO 655 1.64 66 400 190 54 14 2.0 70 0.05 0.17 NA NA NA 0.17 52 NA 49 <br /> 10/30/2014 6.65 ND 668 0.62 126 370 170 45 13 2.0 69 0.04 0.17 NA NA NA 0.27 53 NA 49 <br /> 1/28/2015 6.87 NO 647 0.54 258 390 150 41 11 2.0 69 ND 0.09 NA NA NA 0.17 47 NA 44 <br /> NO is"not detected". <br /> NA is"not analyzed". <br /> EKI Environment&Water,Inc. <br /> July 2023 Page 14 of 281 EKI B90088.03 <br />