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Appendix C-Historical Water Quality City of Lathrop
<br /> Consolidated Treatment Facility
<br /> Monitoring and Reporting Program R5-2016-0028-03 Rev3
<br /> CLSP-8
<br /> Total
<br /> Data Coliform EC DO ORP Hard- Calcium Magnesium Potassium Sodium Manganese Barium Nickel Bromide Chloride Fluoride Sulfate
<br /> Sampled PH Bact1eria 00 (uS/cm) (mg/L) (mV) TDS(mg/L) nesL (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 /> mg/)
<br /> mL
<br /> 8/25/2005 7.38 NA 3,889 -- 221 2,460 NA 196 55 3.0 627 NO 1.07 0.101 NA ND NA 890 NA 540
<br /> 11/14/2005 6.97 NA 4,167 - 421 2,710 NA 195 58 3.0 641 ND 1.11 0.092 NA ND NA 790 NA 550
<br /> 2/22/2006 7.62 1.1 2,746 - 3 1,950 NA 166 50 3.0 481 ND 0.51 0.084 NA NO NA 520 NA 380
<br /> 5/16/2006 7.09 >23 2,585 - - 2,000 NA 171 53 2.0 451 ND 0.72 0.078 NA ND NA 540 NA 370
<br /> 9/13/2006 7.39 ND 3,358 - 348 2,290 NA 146 45 4.0 659 0.06 0.92 0.075 NA ND NA 670 NA 490
<br /> 8/12/2013 7.29 ND 4,028 0.29 -2 2,690 600 160 49 3.1 700 ND NA NA NA NA NA 640 NA 540
<br /> 9/18/2017 7.33 2 3,283 0.25 97 2,050 340 72 39 3.0 587 ND 0.90 NA NA NA 1.86 510 NA 418
<br /> 11/29/2017 7.72 79 3,108 0.45 194 1,930 360 93 30 2.0 550 ND 0.37 NA NA NA 5.23 500 NA 352
<br /> 2/28/2018 7.74 13 3,158 4.30 127 1,880 340 88 29 2.0 567 ND NO NA NA NA 2.76 500 NA 344
<br /> 11/6/2018 7.56 33 3,526 2.98 248 2,100 360 84 37 3.0 725 ND 0.01 NA NA NA 10.30 660 NA 279
<br /> 4/30/2019 7.52 240 2,947 1.97 236 1,720 NA NA NA NA 508 NA NA NA NA NA 2.77 530 NA NA
<br /> 4/30/2019 7.52 540 2,947 1.97 236 1,720 NA NA NA NA 553 NA NA NA NA NA 2.70 510 NA NA
<br /> 10/30/2019 7.36 430 2,460 2.10 207 1,520 340 83 32 4.0 418 NO NO NA NA NA 7.87 407 NA 232
<br /> 5/11/2020 7.45 ND 2,345 0.29 239 1,610 NA NA NA NA 438 NA NA NA NA NA 6.35 448 NA NA
<br /> 11/6/2020 7.27 ND 2,311 0.69 205 1,530 320 76 31 4.0 481 ND ND NA NA NA 3.15 469 NA 228
<br /> 5/5/2021 7.37 ND 2,374 1.53 183 1,490 NA NA NA NA 695 NA NA NA NA NA 2.05 390 NA NA
<br /> 10/18/2021 7.40 130 2,416 0.55 250 1,700 380 95 35 3.0 487 ND 0.01 NA NA NA 4.11 470 NA 247
<br /> 5/3/2022 7.17 ND 2,061 3.66 276 1,270 NA NA NA NA 412 NA NA NA NA NA 1.07 282 NA NA
<br /> 11/9/2022 7.35 7.8 3,033 1.12 119 1,670 320 83 28 3.0 586 0.150 0.22 NA NA NA 3.51 514 NA 281
<br /> 4/4/2023 7.37 ND 3,660 0.44 279 2,100 NA NA NA NA 423 NA NA NA NA NA 4.22 692 NA NA
<br /> Bold values exceed groundwater limitation.
<br /> NS indicates that well was not sampled during regular quarterly monitoring.
<br /> NO is"not detected'.
<br /> NA is"not analyzed".
<br /> City of Lathrop-CLSP-8 City of Lathrop-CLSP-8
<br /> Total Dissolved Solids NO,as Nitrogen
<br /> 5,000 20
<br /> 4,000
<br /> �15
<br /> w3,000 E
<br /> E • z 10
<br /> 0 2,000 p
<br /> F =
<br /> 1,000 5
<br /> 0 0
<br /> Date "Dale
<br /> EKI Environment&Water,Inc.
<br /> July 2023 Page 5 of 281 EKI B90088.03
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