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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-25 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 /> 4/2 112 0 1 4 &42 NO 4,571 0.88 150 2,860 1,260 262 148 4.0 403 0.28 11.5 NA NA NA 257 1,160 NA 420 <br /> 7/31/2014 6.44 ND 3,742 0.91 164 2,560 1,170 242 138 4.0 321 0.25 10.8 NA NA NA 2.20 980 NA 358 <br /> 10/27/2014 6.48 ND 4,058 0.54 61 2,720 1,240 251 150 4.0 336 0.39 11.4 NA NA NA 2.77 1,100 NA 410 <br /> 1/26/2015 6.55 ND 4,120 0.65 124 2,630 1,150 235 136 3.0 305 ND 10.4 NA NA NA 2.71 960 NA 410 <br /> 1/26/2015 6.55 ND 4,120 0.65 124 2,770 1,150 235 137 3.0 309 ND 10.2 NA NA NA 2.50 980 NA 420 <br /> ND is"not detected". <br /> NA is"not analyzed". <br /> EKI Environment&Water,Inc. <br /> July 2023 Page 222 of 281 EKI B90088.03 <br />