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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 /> MWR-11 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 /> 7/30/2013 &89 >1,600 1,857 104 97 1,080 450 105 46 10 188 0.36 0,19 NA NA NA 0.93 388 NA 230 <br /> 11/18/2013 7.05 27 1,794 2.88 49 1,050 470 109 48 3.0 186 0.18 0.09 NA NA NA 0.84 394 NA 217 <br /> 1/30/2014 7.06 1,600 1,845 8.57 184 1,060 480 110 50 3.0 174 NO ND NA NA NA 0.98 344 NA 220 <br /> 4/22/2014 6.87 >1,600 2,267 5.11 227 1,280 630 145 65 3.0 220 0.09 ND NA NA NA 1.27 480 NA 231 <br /> 7/31/2014 6.83 >1,600 1,929 2.32 181 1,170 470 111 47 3.0 197 0.14 ND NA NA NA 1.02 394 NA 217 <br /> 10/28/2014 6.69 240 2,349 1.84 302 1,350 670 157 67 3.0 230 0.12 ND NA NA NA 1.51 520 NA 254 <br /> 1/27/2015 6.77 49 2,515 1.89 302 1,540 690 161 71 2.0 210 ND ND NA NA NA 1.54 510 NA 220 <br /> ND is"not detected". <br /> NA is"not analyzed". <br /> EKI Environment&Water,Inc. <br /> July 2023 Page 206 of 281 EKI B90088.03 <br />