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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 /> KMW-1 continued <br /> Total <br /> Date Coliform EC DO ORP Hard- Calcium Magnesium Potassium Sodium Iron Manganese Barium Nickel Zinc 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) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) <br /> (per 100 (mg/L) <br /> mL <br /> 10/31/2011 7.01 ND 2,991 0.19 279 1,710 596 168 43 &0 416 ND 2.30 NA NA ND -- 460 ND 410 <br /> 1/23/2012 6.91 ND 3,079 - - 1,820 599 166 45 6.0 515 ND 1.87 NA NA NO -- 480 ND 390 <br /> 4/26/2012 6.94 ND 2,764 - 128 1,670 478 134 35 5.0 446 ND 2.30 0.0494 NA NO -- 450 NO 370 <br /> 8/1/2012 6.91 ND 3,118 - 33 1,920 615 169 47 6.0 557 ND 2.55 NA NA NO -- 570 ND 370 <br /> 10/29/2012 6.99 ND 2,761 - 8 1,700 497 135 39 6.0 458 ND 2.15 NA NA NO -- 420 NO 340 <br /> 2/4/2013 7.22 ND 2,996 - 188 1,950 671 185 51 7.0 528 ND 2.04 NA NA NO -- 630 ND 390 <br /> 5/6/2013 6.99 1.1 3,080 - 97 1,910 689 187 54 7.0 540 0.06 3.53 0.0530 NA NO -- 530 ND 390 <br /> 8/5/2013 7.22 ND 3,122 0.46 39 1,910 NA NA NA NA 623 NO 2.15 NA NA NA 1.40 530 NA NA <br /> 11/19/2013 7.28 ND 2,913 0.22 42 1,800 610 166 48 7.0 450 ND 2.17 0.0545 NA NA 1.27 440 NA 490 <br /> 2/6/2014 7.19 ND 2,949 0.59 37 1,790 NA NA NA NA 451 NA 1.77 NA NA NA 1.19 460 NA NA <br /> 2/6/2014 7.19 ND 2,949 0.59 37 1,820 NA NA NA NA 446 NA 1.55 NA NA NA 1.11 430 NA NA <br /> 4/28/2014 7.05 ND 2,948 0.33 72 1,830 640 173 50 7.0 472 NA 2.13 0.0508 NA NA 1.32 420 NA 418 <br /> 8/6/2014 6.87 12 3,267 3.14 198 1,990 NA NA NA NA 483 NA 2.24 NA NA NA 1.55 490 NA NA <br /> 11/4/2014 6.90 ND 2,966 0.30 66 1,890 570 153 46 6.0 452 0.13 2.03 0.0481 NA NA 1.51 459 NA 450 <br /> 2/2/2015 6.99 ND 3,442 0.39 140 2,140 NA NA NA NA 486 0.11 1.96 NA NA NA 1.25 540 NA NA <br /> 4/27/2015 6.92 ND 3,154 0.34 129 1,940 NA NA NA NA 462 ND 1.49 NA NA NA NA 430 NA NA <br /> 7/27/2015 7.05 ND 2,906 0.54 132 1,940 540 149 42 6.0 430 ND 1.80 0.0451 NA NA 1.42 420 NA 460 <br /> 8/31/2015 6.97 NA 3,147 - - NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <br /> 10/29/2015 7.01 ND 3,036 0.82 34 1,880 560 150 46 7.0 443 ND 1.98 0.0470 NA NA 1.51 460 NA 370 <br /> NO is"not detected". <br /> NA! "not analyzed". <br /> -"data not available. <br /> Prior to 8/5/2013 samples collected were not filtered.Beginning 8/5/2013 samples were filtered. <br /> EKI Environment&Water,Inc. <br /> July 2023 Page 128 of 281 EKI B90088.03 <br />