2014-08-01_HYDROLOGY - M1977348

• Permit No: M1977348
• IBM Index Class Name: Hydrology
• Doc Date: 8/1/2014
• Doc Name: Second Quarter 2014 Groundwater Sampling
• From: Golder Associates
• To: DRMS
• Permit Index Doc Type: Hydrology Report
• Email Name: ECS
• Media Type: D
• Archive: No

July 2014 1400159
Table 4: Summary of Monitoring Results for MW-4
Date Benchmark Benchmark Basis 9/27/2010 3/31/2011 6/28/2011 8/31/2011 11/172011 3/27/2012 6/27/2012 9/13/2012 11/13/2012 3/19/2013 5/28/2013 8/26/2013 11/15/2013 2/18/2014 5/21/2014
Level
Metals
Arsenic Dissolved m /L 0.17 Statistical Limit 0.068 0.04 0.055 0.076 <0.02 U <0.02 U 0.0009 B <0.01 U <0.01 U <0.01 U <0.01 U <0.01 U <0.01 U <0.01 U <0.01 U
Barium,Dissolved m /L 2.0 Regulatory Limit 8.69 8.84 7.83* 8.93 7.94 8.73 8.41 8.91 8.67 9.22 8.74 9.13 8.8 8.58 9.64
Boron,Dissolved m /L 0.75 Statistical Limit 0.7 0.5 B 0.62' 0.7 0.7 0.7 0.8 B 0.5 0.72 0.7 0.7 0.6 0.7 0.63 0.6
Chromium,Dissolved m /L 0.3 Statistical Limit <0.02 U <0.02 U <0.02 U <0.02 U <0.02 U <0.02 U 0.0014 B <0.02 U <0.02 U <0.02 U <0.02 U <0.02 U <0.02 U <0.02 U <0.02 U
Copper,Dissolved m /L 0.3 Statistical Limit <0.5 U <0.5 U <0.5 U <0.5 U <0.5 U <0.5 U <1 U <0.5 U <0.5 U <0.5 U <0.5 U <0.5 U <0.5 U <0.3 U <0.5 U
Iron,Dissolved(mall-) 0.61 Statistical Limit 0.3 B 0.3 B 0.28* 0.8 <0.5 U 0.6 1.0 <0.5 U 0.32 U 0.8 0.5 U 0.4 B 0.3 B 0.8 0.2 B
Lead Dissolved m /L 0.05 Requlatory Limit <0.005 U <0.005 U 0.002 B 0.001 B <0.005 U <0.005 U <0.01 U <0.005 U <0.005 U <0.005 U <0.005 U <0.005 U <0.005 U <0.005 U <0.005 U
Lithium Dissolved m /L 2.5 Statistical Limit 2 1.9 2.25' 1.8 1.6 1.8 1.9 B 1.9 2.38 NA NA NA NA NA NA
Manganese,Dissolved m /L 1.2 Statistical Limit <0.3 U <0.3 U <0.3 U <0.3 U <0.3 U <0.3 U <0.5 U <0.3 U 0.018 B <0.3 U <0.3 U <0.3 U <0.3 U <0.1 U <0.3 U
Selenium Dissolved m /L 0.02 Statistical Limit <0.003 U 0.012 <0.003 U <0.003 U <0.003 U 0.007 0.0029 <0.003 U 0.002 B 0.003 B 0.006 <0.003 U <0.003 U <0.003 U <0.003 U
Thallium,Dissolved m /L 0.01 Statistical Limit <0.005 U 0.001 B <0.005 U <0.005 U <0.005 U <0.005 U <0.01 U <0.005 U <0.005 U <0.005 U <0.005 U <0.005 U <0.005 U <0.005 U <0.005 U
Uranium,Dissolved m /L 0.03 Statistical Limit <0.005 U 0.001 B <0.005 U 0.002 B <0.005 U <0.005 U <0.01 U <0.005 U <0.005 U NA NA NA NA NA NA
Zinc Dissolved m /L 2.0 Statistical Limit <0.5 U <0.5 U <0.5 U <0.5 U <0.5 U <0.5 U <1.0 U <0.5 U <0.5 U <0.5 U <0.5 U <0.5 U I <0.5 U I <0.3 U <0.5 U
Other
Chloride m /L Statistical Limit 6,300 6,200 6.200 6,500 6,282 6,063 6,105 6,566 6,077 6,744 6,490 6 470 6,750 7,080 6,450
Fluoride m /L 2.0 Statistical Limit 1.1 1.1 1 1.1 1.1 1.0 1.1 1.2 1.1 1.1 1.1 1.1 1.1 1.1 1.13
Nitrate as N m /L 10 Statistical Limit <0.1 U <0.1 U <0.1 U <0.1 U <0.1 U 1.83 0.04 B 0.04 B 0.04 B NA NA NA NA NA NA
Nitrite as N m /L 1.0 Statistical Limit <0.05 U 0.01 B <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 NA NA
Nitrate+Nitrite as N m /L 10 Statistical Limit <0.1 U 0.02 B <0.1 U <0.1 U <0.1 U 1.83 0.04 B 0.04 B 0.04 B NA NA NA NA NA NA
Lab pH s.0 6.5-8.5 Statistical Limit 8.3 H 8.2 H 8.2 8.2 H 8.3 U 8.1 H 8.1 H 8.1 H 8.2 H 8.1 H 8.2 H 8.1 H 8.1 H 8 H 7.9 H
Total Dissolved Solids filterable residue m /L 10,212 Regulatory Limit 11,000 11,100 11,100 10.900 11.100 11.200 10.800 11.100 10,800 11,100 11.000 1 10.900 1 10.300 H 1 10.800 H 1 10.300 H
Sulfate m /L 1,322 Statistical Limit <500 U <500 U <500 U <300 U <500 U <500 U <500 U <500 U <500 U <500 U <500 U <500 U <500 U <500 U <500 U
Gross Alpha Ci/L 15 Re ula ory Limit -10 t39 73 ±47 16 t37 40 t52 19 t52 -33 t18 260 t76 -0.11 t17 -15 t30 NA NA NA NA NA NA
Gross Beta Ci/L none -7.5 t53 80 t49 22 t45 51 t57 66 t63 38 t51 270 t61 53 t53 9.9 t42 NA NA NA NA NA NA
Supplementary Mal es Not Historical) anal ed
Bicarbonate as CaCO3 m /L none 585 565 569 562 573 597 580 576 571 573 567 590 576 606 623
Carbonate as CaCO3 m /L none 16 B <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 none 37 38 79 37 35 36 42 38 39.2 37 37 37 36 36.1 38
Ma nesium Dissolved m /L none 18 18 38 16 16 17 22 19 18.9 18 18 17 16 16 17
Potassium,Dissolved m /L none 10 B 12 B 20 B 7.0 B 9.0 B 7.0 B 15 B 10 B 22 10 B 10 B 9.0 B 9 B 9 9 B
Sodium,Dissolved m /L none 4,270 4,180 4,280 4 200 3,930 4,220 4,240 4,250 4,150 4,390 4,260 4,350 4,070 4,120 4,360
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
'Reanalysis performed for analyte,reanalysis result reported.
Values in Bold exceeded benchmark levels
Determination of benchmark levels presented in Golder 2011,Results of the September 2010 Groundwater Monitoring Event near the Cement Kiln Dust Disposal Area A2 at the Boettcher Limestone Quarry,La Porte Colorado (January 6)
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