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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 /> KM W-4
<br /> Total
<br /> Date Coliform EC DO ORP Hard- Calcium Magnesium Potassium Sodium 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) Iron(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 /> 1/29/2001 7.32 ND 4,780 -- -- 3,840 1,830 430 184 10.4 584 0.06 5.05 -- NA ND -- 280 -- 1,690
<br /> 10/11/2002 7.00 ND NA -- - NA 1,370 336 129 7.3 510 0.01 4.03 NA NA - -- 230 - 1,200
<br /> 1/24/2003 7.82 ND NA - - NA 1,150 280 110 10 460 NO 1.7 NA NA -- -- 210 -- 1,450
<br /> 4/16/2003 7.16 ND NA - - NA 1,240 290 124 5.5 500 ND 2.3 NA NA - -- 200 -- 1,530
<br /> 9/24/2003 6.80 - NA - - 3,530 1,310 286 145 7.0 556 1.1 3.6 0.06 NA -- -- 248 -- 1,460
<br /> 3/3/2004 7.12 - 3,870 - - 3,070 1,140 264 117 7.0 540 0.39 2.5 0.044 NA - -- 205 -- NA
<br /> 4/19/2004 6.84 - 4,290 - - 3,730 1,420 316 153 7.0 494 51.2 7.44 0.489 NA -- -- 240 -- 1360
<br /> 7/21/2004 7.02 - 4,510 - - 3,880 1,520 351 156 8.0 573 1.79 2.72 0.077 NA - -- 269 -- NA
<br /> 12/1/2004 7.01 -- 4,370 - - 3,570 1,370 318 139 7.0 560 0.18 2.4 0.0454 NA -- -- 240 -- NA
<br /> 1/25/2005 7.20 ND NA - - 3,840 NA NA NA NA 561 122 6.6 NA NA - -- 244 -- NA
<br /> 4/21/2005 7.01 ND 4,650 - - 3,770 1,510 340 162 7.0 508 3.3 1.3 0.06 NA -- -- 207 -- 1,460
<br /> 8/18/2005 6.91 -- 4,130 - - 3,270 NA NA NA NA 384 0.36 1.76 NA NA - -- 252 -- NA
<br /> 11/42005 7.50 ND NA - - 3,450 NA NA NA NA 501 0.49 1.4 NA NA -- -- 200 -- NA
<br /> 1/26/2006 7.20 ND NA - - 3,080 NA NA NA NA 427 0.14 1.76 NA NA - -- 216 -- NA
<br /> 5/1/2006 7.00 ND 3,920 - - 3,000 1,260 289 132 7.0 468 0.11 1.44 0.0385 NA -- -- 310 -- 900
<br /> 8/15/2006 6.90 ND 3,230 - - 2,430 NA NA NA NA 503 13.9 1.53 NA NA - -- 460 -- NA
<br /> 10/23/2006 7.11 6.9 3,430 - - 2,640 NA NA NA NA 528 1.12 1.47 NA NA -- -- 380 -- NA
<br /> 1/301 007 7.20 6.9 3,460 - - 2,690 NA NA NA NA 503 0.67 1.73 NA NA - -- 380 -- NA
<br /> 4/30/2007 7.19 2.2 3,510 - - 2,720 1,050 239 110 8.0 475 0.51 1.37 0.047 NA -- -- 370 -- 760
<br /> 8/2/2007 7.00 ND 3,430 - - 2,530 NA NA NA NA 498 0.41 1.40 NA NA - -- 430 -- NA
<br /> 12/3/2007 7.42 5.1 3,290 - - 2,500 NA NA NA NA 477 0.40 1.39 NA NA -- -- 340 -- NA
<br /> 2/18/2008 7.01 ND 2,500 - - 2,300 NA NA NA NA 404 0.27 1.21 NA NA - -- 280 -- NA
<br /> 4/16/2008 7.23 ND 2,910 - - 2,450 980 221 104 7.0 413 0.17 0.33 0.036 NA -- -- 320 -- 690
<br /> 7/15/2008 6.95 ND 3,000 - - 2,480 NA NA NA NA 391 0.47 1.17 NA NA - -- 370 -- NA
<br /> 10/20/2008 7.09 ND 5,911 - - 2,510 NA NA NA NA 443 0.33 1.65 NA NA -- -- 330 -- NA
<br /> 1/12/2009 7.01 ND 3,020 - - 2,350 NA NA NA NA 460 0.29 1.45 NA NA -- -- 290 -- NA
<br /> 4/20/2009 6.92 ND 2,857 - - 2,280 880 195 95 7.0 470 0.25 0.43 0.038 NA -- -- 250 -- 810
<br /> 7/27/2009 6.58 1.1 3,222 - - 2,500 NA NA NA NA 482 0.32 1.17 NA NA -- -- 320 -- NA
<br /> 10/26/2009 7.01 16.1 3,119 - - 2,520 1,000 226 106 8.0 485 0.11 0.51 NA NA NO -- 210 0.1 920
<br /> 2/4/2010 7.02 ND 2,882 - - 2,230 840 191 89 6.0 360 0.08 0.98 NA NA ND -- 180 ND 810
<br /> 5/3/2010 6.90 NO 3,239 - - 2,550 1,100 245 118 8.0 455 0.18 0.95 0.0373 NA ND -- 260 ND 840
<br /> 8/3/2010 6.87 >23.0 3,206 - - 2,510 1,030 231 110 8.0 457 0.13 0.75 NA NA ND -- 240 NO 800
<br /> 10/14/2010 6.90 NO 3,200 - - 2,540 1,040 236 109 9.0 482 0.09 1.12 NA NA ND -- 210 ND 880
<br /> 3/3/2011 693 ND 3,256 - 412 2,350 975 221 103 6.0 380 ND 0.81 NA NA ND -- 200 0.1 830
<br /> 4/20/2011 6.96 NO 3,346 0 95 2,410 916 207 97 7.0 366 0.19 0.65 0.04 NA 0.04 -- 230 ND 790
<br /> 8/22/2011 fi.98 ND 3,194 0 390 2,280 950 224 95 28 423 0.19 0.98 NA NA ND -- 270 NO 710
<br /> 10/31/2011 6.94 NO 3,898 0 311 2,380 1,080 250 111 11 391 ND 1.55 NA NA NO 240 ND 850
<br /> ND is"not detected".
<br /> NA is"not analyzed".
<br /> "-"data not available.
<br /> City of Lathrop-KMW-4 City of Lathrop•KMW-4
<br /> Total Dissolved Solids NO,Nitrogen
<br /> 5,000 150
<br /> +Unfiltered
<br /> 4,000 125
<br /> +Filtered
<br /> 3,000 t 100
<br /> fi E 75
<br /> p 2,000 10
<br /> 2
<br /> 50
<br /> 1,000
<br /> 25
<br /> 0 0
<br /> 2 9 8 9 0 8 0
<br /> Date �-, i-,i -,i A 9 i>9 SlDates-,
<br /> EKI Environment&Water,Inc.
<br /> July 2023 Page 139 of 281 EKI B90088.03
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