' July 2017 1772432
<br /> ' Table 3: Summary of Monitoring Results for MW-3
<br /> Date Benchmark Benchmark Basis 9/27/2010 3/31/2011 6/30/2011 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
<br /> ' Metals Level
<br /> Arsenic,Dissolved m /L 0 062 Statistical Limit 0 019 001 0 011 002 <0 004 U <0 01 U 00011 B <0 005 U 00005 B 00008 B <0 005 U 0 001 B <0 002 U
<br /> ' Barium,Dissolved(mg/L) 20 Regulatory Limit 2.4 2.95 2.23 2.73 2.26 2.51 2.08 2.52 2.23 2.5 2.20 2.41 2.25
<br /> Boron,Dissolved(mg/L) 075 Statistical Limit 0.77 0.75 074 0.8 0.78 0.77 0.76 0.76 0.85 0.79 0.84 075 0.76
<br /> Chromium,Dissolved m /L 01 Regulatory Limit 0 003 B 0 001 B <0 01 U 0.004 B <0 004 U <0.01 U <0 002 U <0 01 U <0 01 U <0 004 U <0 01 U <0.01 U <0 004 U
<br /> Copper,Dissolved m /L 02 Statistical Limit <0 1 U <0 1 U <0 3 U <0 1 U <0 1 U <0 05 U <0 05 U <0 3 U <0 3 U <0 05 U <0 3 U <0 3 U <0 05 U
<br /> Iron Dissolved m /L 03 Regulatory Limit 004 B 027 <0 3 U <0 1 U 01 022 0.32 <0 3 U 01 Oil <0 3 U <0.3 U 014
<br /> ' Lead Dissolved m /L 005 Requlatory Limit <0 001 U 00007 B 00002 *B Is
<br /> <0 001 U <0 003 U 00007 <0 003 U 00003 B <0 001 U <0.003 U <0 003 U <0 001 U
<br /> Lithium,Dissolved m /L 25 Statistical Limit 0.8 074 08 064 072 07 07 083 NA NA NA NA
<br /> Manganese,Dissolved m /L 008 Statistical Limit 004 B 005 003 B 003 B 0 021 B 0 034 <0 1 U 0 047 0 026 <0 1 <0.1 U 0 031
<br /> Selenium Dissolved m /L 002 Statistical Limit 00006 00012 <0 001 U <0.005 U 00065 00007 <0 001 U 00005 B 00006 00043 <0 001 U 00003 B
<br /> Thallium Dissolved m /L 001 Statistical Limit <0 001 U <0 001 U <0 003 U <0 001 U <0 003 U <0 0005 U <0 003 U <0 003 U <0 001 U <0.003 U <0 003 U <0 001 U
<br /> Uranium,Dissolved m /L 003 Statistical Limit 00015 00008 B 0 001 B 00012 00006 B 00011 00005 B 00005 B NA NA NA NA
<br /> Zinc,Dissolved(mg/L) 20 Statistical Limit <0 1 U <0 1 U <0 3 U <0 1 U <0 05 U <0 05 U <0 3 U <0 3 U <0 05 U <0 3 U <0.3 U <0 05 U
<br /> Other
<br /> Chloride m /L 1,620 Statistical Limit 1,550 1,530 1,550 1,620 1,530 1,565 1,505 1,681 1,721 1,665 1,620 1,570 1,610
<br /> Fluoride(mg/L) 36 Statistical Limit 24 23 22 24 24 23 25 23 24 23 24 24 23
<br /> Nitrate as N m /L 10 Statistical Limit <0 1 U 037 079 003 B <0 1 U <0 1 U 002 B 017 009 B NA NA NA NA
<br /> Nitrite as N m /L 1 0 Statistical Limit <0 05 U <0 05 U <0 05 U <0 05 U <0 05 U <0 05 U <0 05 U <0 05 U <0 05 U NA NA NA NA
<br /> Nitrate+Nitrate as N(mg/L) 10 Statistical Limit <0 1 U 037 079 003 B <0 1 U <0 1 U 002 B 017 009 B NA NA NA NA
<br /> ' Lab pH s.0 7 6-9 3 Statistical Limit 86 H 8.4 H 86 H 85 H 82 H 84 H 84 H 85 H 85 H 85 H 84 H 85 H 84 H
<br /> Total Dissolved Solids filterable residue m /L 4,546 1 Regulatory Limit 1 3,930 3,940 1 4,000 1 3,940 1 3,860 1 4,000 1 3,790 4,000 31950 3,990 4,000 4,000 3,880 H
<br /> Sulfate(mg/L) 250 Regulatory Limit <100 U <100 U <300 U <50 U <125 U <125 U 1 301 B <125 U <125 U <125 U <125 U <125 U <125 U
<br /> Gross Alpha CdL 15 Regulatory Limit 5 7 ±13 33 ±20 5 7 ±17 15 ±18 20 ±18 8 ±13 66 ±27 0 85 ±14 -8 2 ±8 6 NA NA NA NA
<br /> Gross Beta Ci/L none 3 2 ±17 25 ±21 7 2 ±18 5 ±19 5 4 ±18 13 ±18 110 ±24 15 ±17 -4 9 ±18 NA NA NA NA
<br /> Supplementary Anal es Not Historical) anal zed
<br /> Bicarbonate as CaCO3 m /L none 1,110 1,130 1,100 1,090 1,100 1,160 1,130 1,130 1,130 1,140 1,130 1,130 1,170
<br /> Carbonate as CaCO3 m /L none 98 31 96 75 78 50 52 51 78 71 60 75 40
<br /> Calcium,Dissolved m /L none 66 11 9 7 75 6.8 63 94 7 75 61 7 8 68
<br /> Magnesium,Dissolved m /L none 3 34 3 B 27 28 29 29 4 B 36 30 3 3 B 28
<br /> ' Potassium,Dissolved m /L none 44 55 50 B 32 36 42 41 40 B 69 44 40 40 B 39
<br /> Sodium Dissolved m /L none 1,600 1450 1,560 1 490 1,370 1 550 1,530 1 580 1,550 1,620 1,590 1,600 1,600
<br /> Notes
<br /> B=Estimated value,less than the practical
<br /> ' quantitation limit for that analyte,but greater than
<br /> the method detection limit
<br /> U=Analyte not detected,reported less than the
<br /> practical quantitation limit
<br /> H=Analysis exceeded method hold time pH is a
<br /> ' field test with an immediate hold time
<br /> NA=Analyte not analyzed
<br /> ^=Second and third quarter 2015 reports
<br /> presented calculated total dissolved solids results
<br /> Values in Bold exceeded benchmark levels
<br /> ' Determination of benchmark levels presented in
<br /> Golder 2011,Results of the September 2010
<br /> Groundwater Monitoring Event
<br /> near the Cement Kiln Dust Disposal Area A2 at the
<br /> ' Boettcher Limestone Quarry,La Porte Colorado
<br /> (January 6)
<br /> t
<br /> Golder
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