July 2018
<br />Table 1: Summary of Monitoring Results for MW -1
<br />Date
<br />Interim Narrative
<br />Standard
<br />5/21/2014
<br />8/27/2014
<br />11/1112014
<br />2/18/2015
<br />5/27/2015
<br />8/27/2015
<br />11/9/2015
<br />2/15/2016
<br />5/31/2016
<br />8/16/2016
<br />1119/2016
<br />5/31/2017
<br />11/15/2017
<br />616/2018
<br />Metals
<br />Arsenic, Dissolved (mg/L
<br />001
<br />0.001 B
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />Barium, Dissolved (mg/L
<br />20
<br />0.004 B
<br />0.006 B
<br />0.007 B
<br />0.009 B
<br />< 0 08 U
<br />< 0.08 U
<br />< 0.08 U
<br />0 03 B
<br />< 0 08 U
<br />< 0.08 U
<br />0 007 B
<br />< 0.08 U
<br />< 0.08 U
<br />< 0.08 U
<br />Boron, Dissolved (mg/L
<br />0.75
<br />0.57
<br />0.56
<br />058
<br />0.59
<br />0.55
<br />057
<br />0.52
<br />0.6
<br />0.51
<br />0.51
<br />0.56
<br />0.61
<br />0.61
<br />0.65
<br />Chromium, Dissolved (mg/L
<br />0.1
<br />< 0.01 U
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />Copper, Dissolved (mg/L
<br />0.2
<br />< 0.05 U
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />Iron, Dissolved m/L
<br />0.3
<br /><0.05U
<br /><0.05U
<br /><0.05U
<br /><005U
<br /><0.3U
<br /><03U
<br /><03U
<br /><0.3U
<br /><0.3U
<br /><0.3U
<br /><0.05U
<br /><03U
<br /><03U
<br /><0.3U
<br />Lead, Dissolved (mg/L
<br />0.05
<br />< 0 003 U
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />Lithium, Dissolved (mg/L
<br />2.5
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />Manganese, Dissolved (mg/L
<br />0.05
<br />0.033
<br />0 045
<br />0.041
<br />0.052
<br />< 0.1 U
<br />0 04 B
<br />< 0.1 U
<br />0.04 B
<br />< 0.1 U
<br />< 0.1 U
<br />0.04
<br />< 0.1 U
<br />< 0.1 U
<br />< 0.1 U
<br />Selenium, Dissolved (mg/L
<br />002
<br />0.2775
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />Thallium, Dissolved (mg/L
<br />0 002
<br />< 0.003 U
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />Uranium, Dissolved (mg/L
<br />0.0168
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />Zinc, Dissolved (mg/L
<br />2.0
<br /><005 U
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />Other
<br />Chloride (mg/L
<br />250
<br />< 250 U
<br /><250 U
<br />< 250 U
<br />68.9 B
<br />154 B
<br />< 250 U
<br />< 250 U
<br />< 250 U
<br />< 250 U
<br />< 250 U
<br />47.5 B
<br />32.2 B
<br />41.3 BH
<br />27.5 B
<br />Fluoride (mg/L
<br />20
<br />0.44
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />Nitrate as N (mg/L
<br />10.0
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />Nitrite as N (mg/L
<br />10
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />Nitrate+Nitrite as N (mg/L
<br />10.0
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />Lab pH (s u)
<br />6.5-8.5
<br />7 8 H
<br />7.8H
<br />8H
<br />7.9H
<br />7 9 H
<br />8H
<br />7.9H
<br />7.84
<br />7.9H
<br />8.1 H
<br />8.1 H
<br />8 2 H
<br />8H
<br />8 3 H
<br />Total Dissolved Solids, filterable residue (mg/L
<br />8595*
<br />6,910 H
<br />6,950
<br />7,900
<br />7,380
<br />8,210 A
<br />7,760 A
<br />8,020
<br />7,660
<br />8,450
<br />8,040
<br />7,460
<br />7,010
<br />7,070
<br />7,240
<br />Sulfate (mg/L
<br />250
<br />6,850
<br />4,670
<br />4,300
<br />4,800
<br />5,540
<br />5,640
<br />5,430
<br />5,250
<br />5,470
<br />5,540
<br />4,700
<br />4,690
<br />4,340 H
<br />4,530
<br />Gross Alpha pCi/L
<br />15.0
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />Gross Beta Ci/L
<br />none
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />NA
<br />Supplementary Analytes Not Historical) anal ed
<br />Bicarbonate as CaCO3 (mg/L
<br />none
<br />333
<br />310
<br />325
<br />NA
<br />320
<br />302
<br />306
<br />319
<br />307
<br />329
<br />325
<br />369
<br />361
<br />358
<br />Carbonate as CaCO3 (mg/L
<br />none
<br /><20 U
<br /><20 U
<br /><20 U
<br />NA
<br /><20 U
<br /><20 U
<br /><20 U
<br /><20 U
<br /><20 U
<br /><20 U
<br /><20 U
<br />< 20 U
<br /><20 U
<br />3.1 B
<br />Calcium, Dissolved (mg/L
<br />none
<br />330
<br />287
<br />309
<br />230
<br />301
<br />320
<br />289
<br />279
<br />345
<br />275
<br />269
<br />187
<br />175
<br />220
<br />Magnesium, Dissolved (mg/L
<br />none
<br />364
<br />297
<br />303
<br />247
<br />300
<br />342
<br />301
<br />290
<br />376
<br />301
<br />283
<br />202
<br />188
<br />225
<br />Potassium, Dissolved (mg/L
<br />none
<br />18.9
<br />19.4
<br />21 8
<br />15.6
<br />19
<br />20
<br />18
<br />18.6
<br />22
<br />16
<br />20.5
<br />13
<br />12
<br />16
<br />Sodium, Dissolved (mg/L)
<br />none
<br />1,910
<br />1,570
<br />1,510
<br />1,770
<br />1,670
<br />1,740
<br />1,770
<br />1,720
<br />1,570
<br />1,710
<br />1,640
<br />1,710
<br />1,660
<br />1,650
<br />Notes•
<br />B = Estimated value, less than the practical quantitation limit for that analyte, but greater than the method detection limit
<br />U = Analyte not detected, reported less than the practical quantitation limit
<br />H = Analysis exceeded method hold time pH is a field test with an immediate hold time.
<br />NA = Analyte not analyzed
<br />A = Second and third quarter 2015 reports presented calculated total dissolved solids results
<br />Per Section 41.5 (C) (6) the of Regulation 41, the "Interim Narrative Standard" , is the minimum of Table 1- Table 4 of The Basic Standards for Groundwater (BSGW)
<br />*TDS standard is 1 25 * Background, where background is the average of the 1999-2000 sampling
<br />Values in bold indicate a value greater than the BSGW
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