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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-24
<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 /> 8/31/2005 6.86 220 9,500 -- - 8,100 NA 960 420 &3 690 56 33 0.085 NO ND 8.0 3,300 NO 1,400
<br /> 11/28/2005 6.70 ND 7,600 -- - 5,600 NA 590 260 6.9 410 73 16 0.091 ND ND 6.5 2,400 0.25 870
<br /> 2/7/2006 6.55 ND 7,600 - - 5,700 NA 710 310 6.8 410 91 17 0.12 ND ND 6.5 2,600 0.40 930
<br /> 5/2/2006 6.53 4 6,700 - - 6,200 2,300 700 300 6.6 380 92 15 0.12 ND ND 5.7 2,100 NO 770
<br /> 8/3/2006 6.06 27 7,275 0.11 -84 6,500 2,900 680 300 11 400 95 15 0.13 ND 0.0022 5.3 2,200 0.12 780
<br /> 10/25/2006 6.29 ND 7,221 0.14 -98 4,600 2,800 650 280 8.5 390 99 12 0.13 0.0077 0.0037 5.4 2,100 0.15 740
<br /> 1/29/2007 6.60 11 8,170 0.21 -94 3,700 3,500 830 340 8.9 480 91 23 0.13 ND ND 5.7 2,500 NO 870
<br /> 4/30/2007 6.47 NO 7,637 0.09 -114 5,800 2,700 600 290 14 440 86 21 0.11 ND NO 6.4 2,300 NO 780
<br /> 8/6/2007 6.14 ND 9,181 0.96 13 6,300 3,400 790 360 9.0 630 39 30 0.097 0.0024 ND 7.3 2,900 0.15 1,400
<br /> 8/6/2007 6.14 ND 9,181 0.96 13 6,200 3,400 790 360 8.4 630 40 31 0.096 0.0025 ND 7.3 2,900 0.15 1,400
<br /> 11/6/2007 6.30 8 8,006 11.71 -4 5,200 3,000 720 300 9.9 620 15 21 0.063 0.0045 ND 6.0 2,300 0.19 1,200
<br /> 2/11/2008 6.60 ND 8,322 0.14 -1 5,600 2,800 640 290 5.9 810 2.2 17 0.055 0.014 ND 6.0 2,300 0.11 1,400
<br /> 2/11/2008 6.60 ND 8,322 0.14 -1 5,400 2,800 640 300 6.4 790 3.0 17 0.057 0.013 ND 6.1 2,400 0.10 1,500
<br /> 4/24/2008 6.40 ND 8,275 0.21 40 7,300 3,100 700 330 5.0 720 14 24 0.052 0.012 NO 6.3 2,600 0.17 1,400
<br /> 8/20/2008 6.38 ND 7,663 0.23 -42 7,200 2,700 600 290 5.1 530 49 19 NA NA NA 6.2 2,300 NA 1,000
<br /> 11/20/2008 6.40 >1,600 7,424 0.50 -51 6,100 2,800 630 300 5.6 510 57 19 NA NA NA 6.8 2,300 NA 910
<br /> 11/20/2008 6.40 >1,600 7,424 0.50 -51 6,500 2,800 620 300 5.5 500 58 19 NA NA NA 6.4 2,200 NA 900
<br /> 2/18/2009 6.40 17 7,331 0.09 -63 6,100 2,610 600 270 5.8 410 53 16 NA NA NA 5.6 2,100 NA 900
<br /> 2/18/2009 6.40 30 7,331 0.09 -63 6,200 2,870 640 310 6.3 460 64 18 NA NA NA 5.8 2,100 NA 900
<br /> 4/21/2009 6.39 ND 7,430 0.07 -71 4,400 2,860 650 300 7.8 490 68 19 NA NA NA 5.6 2,200 NA 910
<br /> 4/21/2009 6.39 ND 7,430 0.07 -71 4,800 2,760 610 300 6.6 500 68 19 NA NA NA 5.8 2,200 NA 910
<br /> 8/3/2009 7.81 11 7,795 0.34 -57 3,830 2,770 635 288 7.0 713 50 19.7 NA NA NA 5.05 2,060 NA 1,210
<br /> 8/3/2009 7.81 14 7,795 0.34 -57 5,350 2,770 644 284 7.0 709 50.1 20.1 NA NA NA 4.77 2,120 NA 1,230
<br /> 10/26/2009 6.70 NO 7,186 0.60 -52 5,200 2,480 561 264 7.0 605 47.5 16.4 NA NA NA 5.09 2,030 NA 1,000
<br /> 1/26/2010 6.80 59 6,859 0.50 -7 5,040 2,390 532 258 5.0 435 44.2 17.0 NA NA NA 3.77 1,920 NA 870
<br /> 5/6/2010 6.42 ND 6,549 0.63 -7 4,480 2,440 547 262 5.0 497 43.3 16.9 NA NA NA 4.50 1,900 NA 930
<br /> 8/27/2010 6.31 ND 7,916 0.19 -93 5,740 3,110 716 323 ND 743 51.7 22.3 NA NA NA 5.59 2,330 NA 1,400
<br /> 10/29/2010 6.37 NO 8,700 0.37 -78 5,920 3,230 741 337 6.0 1,030 47.0 23.0 NA NA NA 5.90 2,310 NA 1,580
<br /> 10/29/2010 6.37 ND 8,630 0.37 -78 6,350 3,240 747 334 6.0 780 46.4 23.4 NA NA NA 5.82 2,300 NA 1,590
<br /> 1/17/2011 6.61 NO 8,562 0.24 -117 5,300 2,930 661 311 3.6 708 40.4 20.0 NA NA NA 5.39 2,200 NA 1,460
<br /> 4/18/2011 6.46 ND 7,903 0.17 -93 5,290 3,180 718 338 7.0 580 68.5 21.0 NA NA NA 6.18 2,190 NA 1,130
<br /> 8/16/2011 7.10 ND 8,307 1.32 -136 5,640 3,180 747 320 6.0 648 67.8 21.9 NA NA NA 5.76 2,430 NA 1,100
<br /> 10/25/2011 6.47 ND 8,471 0.16 155 5,220 3,130 722 323 7.0 506 73.2 23.8 NA NA NA 6.44 2,310 NA 1,220
<br /> 1/27/2012 6.58 NO 8,973 0.41 -95 6,080 3,330 740 362 7.0 850 49.1 23.0 NA NA NA 5.44 2,380 NA 1,500
<br /> 4/23/2012 6.35 ND 9,025 0.45 -69 6,310 3,590 822 375 7.0 704 82.0 25.1 NA NA NA 5.22 2,610 NA 1,200
<br /> 7/24/2012 6.43 NO 8,872 1.39 -108 5,770 3,590 835 366 8.0 615 90.4 19.9 NA NA NA 6.18 2,400 NA 1,310
<br /> 10/23/2012 6.45 ND 8,496 0.76 -133 5,590 3,240 747 334 7.0 562 84.7 19.9 NA NA NA 5.66 2,220 NA 1,090
<br /> 1/28/2013 6.53 NO 8,843 0.16 -85 5,740 3,330 762 348 9.0 570 87.1 19.6 NA NA NA 6.17 2,570 NA 1,200
<br /> 4/26/2013 6.58 ND 8,861 0.18 -89 6,250 3,450 788 360 8.0 563 86.2 10.7 NA NA NA 6.58 2,480 NA 1,200
<br /> 17/292013 6.75 ND 8,48 0 -48 0 3,191 71 3446 6.00 57 82 21.2 NAA NAA NAA 4.98 2420 NAA 1,061
<br /> 1/1/ 1 10 1 32 15 71.
<br /> 0. - 7 197 N N N 5 2,470 N4203 2 ND 349 806 5, 1,150
<br /> NO is"not detected".
<br /> NA is"not analyzed".
<br /> River Islands-MWR-24
<br /> River Islands-MWR-24
<br /> Total Dissolved Solids
<br /> NOt Nitrogen
<br /> Well Well
<br /> 10,000 abandoned
<br /> 20 abandoned
<br /> 8,000
<br /> 15
<br /> 6,000
<br /> E E 10
<br /> yo 4,000
<br /> O
<br /> 2,000 5
<br /> 0 0
<br /> �goo4 4?444���2
<br /> »104»1010»>101M-,1 10 1010»>10IM»1010
<br /> Date
<br /> »-,
<br /> EKI Environment&Water,Inc.
<br /> July 2023 Page 217 of 281 EKI B90088.03
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