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July 2017 1772432 Table 1: Summary of Monitoring Results for MWA Date 9/27/2010 3/31/2011 6/28/2011 8/31/2011 11/17/2011 3/27/2012 6/27/2012 9/13/2012 11/13/2012 3/19/2013 5/28/2013 8/26/2013 11/14/2013 2/18/2014 5/21/2014 8/27/2014 11/11/2014 Metals Arsenic,Dissolved m /L 0 015 0 005 B 001 B 0 011 <0 01 U <0 01 U 0 003 B 0 001 B 0 002 B 0 002 B <0 005 U 0 002 B <0 005 U 0 001 B 0 001 B NA NA ' Barium,Dissolved m /L <0 08 U 004 B 0 005 B <0 08 U <0 08 U 0 017 B <0 08 U 002 B 002 B 0 011 B <0 08 U <0 08 U 0 011 B 0 008 B 0 004 B 0 006 B 0 007 B Boron,Dissolved m /L 054 059 058 064 064 062 059 071 073 064 069 061 06 061 057 056 058 Chromium,Dissolved m /L <001 U <001 U <001 U <001 U <0 01 U <001 U <001 U <001 U <001 U <001 U <001 U <001 U <001 U <001 U <001 U NA NA Copper,Dissolved m /L <0 3 U <0 3 U <005 U <0 3 U <03 U <005 U <0 3 U <0 3 U <0 3 U <0.05 U <0 3 U <0 3 U <005 U <005 U <005 U NA NA Iron,Dissolved m /L <0 3 U 0.3 <005 U <0.3 U 02 B 015 14 <0 3 U <0 3 U <005 U <0 3 U <0 3 U <005 U <005 U <005 U <005 U <005 U ' Lead,Dissolved m /L 00019 B 0.0027 B 00052 00045 00007 B <0 003 U 00035 <0 003 U <0 003 U <0 003 U <0 003 U <0 003 U <0 003 U <0 003 U <0 003 U NA NA Lithium,Dissolved m /L 1 3 1 3 1 18 12 1 1 1 15 1 1 1 1 12 NA NA NA NA NA NA NA NA Manganese,Dissolved m /L <0 1 U 005 B 0 041 <0 1 U <0 1 U 0 026 B 004 B 004 B 004 B 0 025 <0 1 U 004 B 0 044 0 054 0 033 0 045 0 041 Selenium,Dissolved m /L 04928 02684 02656 02826 0.275 02328 02204 01995 01756 01826 02278 0 257 02616 02067 02775 NA NA Thallium,Dissolved m /L 00016 B 00025 B 00014 B 00017 B <0 003 U <0 003 U 00007 B <0 003 U <0 003 U <0 003 U <0 003 U <0 003 U <0 003 U <0 003 U <0 003 U NA NA Uranium,Dissolved m /L 00364 00303 00397 00344 00403 00338 00367 00433 00371 NA NA NA NA NA NA NA NA Zinc,Dissolved m /L 013B <0 3 U <005U <0 3 U <03U <005U <0 3 U <0 3 U <0 3 U 002 <0 3 U <0 3 U <005U 001 B <005U NA NA Other Chloride m /L <300 U <300 U <300 U 40 B 364 B 50 B <250 U <250 U <250 U 86 B <250 U 555 B <250 U <250 U <250 U <250 U <250 U Fluoride m /L 04 B 05 04 B 04 B O6 06 06 06 07 06 05 05 05 05 044 NA NA Nitrate as N m /L 96 88 70 81 6 81 76 89 85 785 NA NA NA NA NA NA NA NA Nitrite as N m /L 024 0.36 034 04 026 029 056 021 Oil NA NA NA NA NA NA NA NA Nitrate+Nitrate as N m /L 96 88 70 82 81 76 90 85 786 NA NA NA NA NA NA NA NA Lab pHsu 81 H 8 1 H 80 H 80 H 80 H 80 H 81 H 82 H 82 H 81 H 80 H 8 0 H 78 H 79 H 78 H 78 H 8 H Total Dissolved Solids,filterable residue m /L 7,770 7,560 7,610 7,540 7,110 7,150 6,770 6,770 6,660 6,610 1 7,420 6,650 H 7,800 H 7,330 6,910 H 1 6,950 7.900 Sulfate m /L 4,840 4,540 4,820 4,620 4,306 4,056 4,090 4,041 3,991 3,980 4,610 4,230 5,150 4,980 6,850 4,670 4,300 Gross Alpha Ci/L 41 t31 53 t31 22 t25 5 8 t29 32 t30 48 t30 180 t52 24 t23 0 51 t22 NA NA NA NA NA NA NA NA Gross Beta Ci/L 39 t28 36 t28 20 t28 23 t32 27 t31 8.1 t25 190 t36 25 t29 12 t27 NA NA I NA I NA i NA I NA NA NA ' Supplementary Anal es Not Historically anal zed Bicarbonate as CaCO3 m /L 279 305 309 312 311 333 334 285 337 334 334 330 320 357 333 310 325 Carbonate as CaCO3 m /L <20 U <20 U <20 U <20 U <20 U <20 U <20 U <20 U <20 U <20 U <20 U <20 U <20 U <20 U <20 U <20 U <20 U Calcium,Dissolved m /L 323 225 305 270 240 198 222 218 169 178 276 258 302 254 330 287 309 Magnesium,Dissolved m /L 336 240 313 272 246 210 213 203 175 180 265 225 308 256 364 297 303 ' Potassium Dissolved m /L 22 18 22.7 17 15 148 17 17 13 145 19 20 207 165 189 194 21 8 Sodium,Dissolved(mg/L) 1,660 1,800 1,680 1,670 1,610 1,680 1,630 1,650 1,770 1,670 1,660 1,580 1,820 1,790 1,910 1,570 1,510 Notes B=Estimated value,less than the practical ' quantitation limit for that analyte,but greater than the method detection limit U=Analyte not detected,reported less than the practical quantitation limit H=Analysis exceeded method hold time pH is a field test with an immediate hold time NA=Analyte not analyzed ^=Second and third quarter 2015 reports presented calculated total dissolved solids results ' fGolder I\17\1772432\0110\GWSamp1�2017_Fnl-28Ju117\Tables l-7 xIszMW4 Pagel oft NAWAssociates