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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-3 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 /> 4/26/2013 &94 2 6,972 0.88 222 3,730 2,000 426 228 3.0 820 0.17 4.54 NA NA NA 3.94 1,580 NA 900 <br /> 7/29/2013 6.04 33 9,708 0.64 181 6,510 3,610 829 376 3.0 1,320 ND 4.30 NA NA NA 6.07 2,580 NA 1,600 <br /> 11/14/2013 5.82 8.3 5,497 0.83 117 2,990 1,280 264 150 3.0 579 ND 2.24 NA NA NA 2.80 1,120 NA 710 <br /> 1/29/2014 5.79 11 6,193 1.55 287 3,480 1,600 334 187 3.0 624 ND 3.11 NA NA NA 3.69 1,540 NA 1,000 <br /> 4/21/2014 6.03 2 2,686 0.74 237 1,650 610 128 70 2.0 311 0.10 1.11 NA NA NA 1.54 610 NA 379 <br /> 7/31/2014 5.86 ND 5,421 0.80 237 3,470 1,540 321 180 3.0 561 0.18 3.01 NA NA NA 3.20 1,280 NA 700 <br /> 10/27/2014 6.25 23 2,288 0.61 136 1,380 520 114 58 3.0 249 0.15 1.74 NA NA NA 1.06 507 NA 210 <br /> 1/26/2015 5.94 540 9,374 1.36 229 6,830 2,570 562 285 2.0 935 ND 2.69 NA NA NA 7.02 2,300 NA 1,100 <br /> NO is"not detected". <br /> NA is"not analyzed". <br /> EKI Environment&Water,Inc. <br /> July 2023 Page 188 of 281 EKI B90088.03 <br />