2008-06-27_REPORT - C1980007 ‎(6)‎

• Permit No: C1980007
• IBM Index Class Name: REPORT
• Doc Date: 6/27/2008
• Doc Name: 2007 AHR Appendix D thru F
• From: HydroGeo, Inc
• To: DRMS
• Annual Report Year: 2007
• Permit Index Doc Type: Hydrology Report
• Email Name: TAK
• Media Type: D
• Archive: No

•
96-2.2 Alepring
Water Quality and Field Parameters
Mountain Coal West Elk Mine
Monitoring Location 96-2-2 Area Spring Baseline' 2007 Water Year

Descri lion
Units
Minimum
Maximum
mean'
4/30/2007
Q 5
512912007
Q 5
7/2/2007
Q 5 7/2/2007
(Duplicate)
Q 5
8/9/2007
Q6 8/9/07
1 (Duplicate)
Q 5
9/11/2007
9/27/2007
Field Parameters
Flow m 0.11 2.5 0.75 2.50 1.25 0.25 0.25 0.11 0.11 See Dam
Electrical Conductivity umhos/cm 348 430 399 348 372 408 408 430 430 458
H SU 7.78 8.18 7.88 7.94 8.18 7.81 7.81 7.78 7.78 7.14
Temperature °F 44.42 54.14 51.0 44.4 51.6 54.1 54.1 50.9 50.9 43.0
Temperature C 6.9 12.3 10.6 6.9 10.9 12.3 12.3 10.5 10.5 6.1

Comment No Lab
Sample
Laboratory Parameters
Name of Certified Lab ACZ ACZ ACZ ACZ ACZ ACZ
Lab Reference # L62286-01 L62928-07 L63600-01 L63600-04 L64362-03 L64362-04
Sample Date 4/30/2007 5/29/2007 7/2/2007 7/2/2007 8/9/2007 8/9/2007
Lab Test Date 511-5/23 5/31-6/18 713-7/19 7/3-7/19 8/13-8/29 8/13-8/29
Sampled B
Alkalinity Total CaC03 mg/I 129 172 156 129 137 171 170 172 172
Aluminum, dissolved m /I -0.03 0.21 0.09 -0.03 U 0.05 B 0.21 0.06 B 0.13 B 0.10 B
Anions me /I 3.2 4 3.8 3.2 3.4 4.1 4.0 4.1 4.1
Arsenic, dissolved m /I
Arsenic, total m /I -0.0005 0.0012 0.0007 -0.0005 U 0.0005 B 0.0012 0.0008 B 0.0009 B 0.0008 B
Bicarbonate m /I 129 171 154 129 133 162 160 171 171
Boron, dissolved m /I 0.01 0.02 0.02 0.01 B 0.01 B 0.01 B 0.02 B 0.02 B 0.02 B
Cadmium, dissolved m /I -0.005 -0.005 -0.005 -0.005 U -0.005 U -0.005 U -0.005 U -0.005 U -0.005 U
Calcium, dissolved m /I 11.8 18.3 16.2 11.8 15.0 18.3 17.9 17.2 17.0
Carbonate m /I -2 10 4 -2 U 4 B 9 B 10 B -2 U -2 U
Cation - Anion Balance m 0.0 5.6 2.2 1.5 5.6 1.2 3.6 1.2 0.0
Cations me /I 3.3 4.3 4.0 3.3 3.8 4.2 4.3 4.2 4.1
Chloride m /I 2 3 2 2 B 3 B 2 B 2 B 2 B 2 B
Conductivity umhos/cm 332 421 387 332 332 411 409 418 421
Copper, dissolved m 11 -0.01 -0.01 -0.01 -0.01 U -0.01 U -0.01 U -0.01 U -0.01 U -0.01 U
Hardness m /I 38 59 52 38 49 59 58 55 55
Hydroxide mg/1 -2 -2 -2 -2 U -2 U -2 U -2 U -2 U -2 U
Iron, dissolved m 0.05 0.30 0.13 0.05 B 0.06 0.30 0.06 0.15 0.15
Iron, total m /I 0.84 9.08 4.55 0.84 2.46 6.93 2.79 9.08 5.19
Lead, dissolved mg/I -0.04 -0.04 -0.04 -0.04 U -0.04 U -0.04 U -0.04 U 404 U -0.04 U
Magnesium, dissolved m /I 2.1 3.3 2.9 2.1 2.7 3.3 3.2 3.0 3.0
Manganese, dissolved m /I -0.005 0.177 0.045 -0.005 U -0.005 U 0.059 0.023 B 0.177 0.006 B
Manganese, total m 0.013 0.153 0.075 0.013 B 0.050 0.153 0.068 0.101 0.065
Mercury, total mg/I -0.0002 -0.0002 -0.0002 -0.0002 U -0.0002 U -0.0002 U -0.0002 U -0.0002 U -0.0002 U
Molybdenum, dissolved mg/I -0.01 0401 0.01 -0.01 U -0.01 U 0.01 B -0.01 U -0.01 U -0401 U
Nitrate as N), dissolved mg/I
Nitrate/Nitrite as N mg/I -0.02 0.04 0.03 0.03 B 0.04 B -0.02 U 0.04 B 0.04 B 0.03 B
Nitrite as N), dissolved mg/I
H SU 8.2 8.5 8.4 8.2 H 8.4 H 8.4 H 8.5 H 8.3 H 8.3 H
Phosphate mg/I 0.03 0.18 0.08 0.03 B 0.06 B 0.06 B 0.06 B 0.06 B 0.18
Phosphorus Ortho , dissolved mg/I 0.01 0.06 0.03 0.01 B 0.02 H,B 0.02 B 0.02 B 0.02 B,H 0.06
Potassium, dissolved mg/I 0.7 1.4 1.2 0.7 B 1.3 B 1.4 B 1.3 B 1.1 B 142 B
Selenium, total m /I -0.001 0.002 0.0008 -0.001 U -0.001 U 0.002 B -0.001 U -0.001 U -0.001 U
Sodium Absorption Ratio SAR talc. 3.93 4.17 4.09 4.17 4.12 3.93 4.10 4.14 4.09
Sodium, dissolved mg/I 58.5 70.8 67.0 58.5 65.3 68.7 70.8 69.9 68.8
Sulfate m /I 30 30 30 30 B 30 B 30 B 30 B 30 B 30 B
TDS Ratio calc. 0.97 1.04 1.02 1.04 1.04 1.04 1404 0.97 0.98
TDS Calc. m /I 183 231 216 163 201 230 231 226 225
TDS m /I 190 240 220 190 210 240 240 220 220
TSS m /I 22 510 175 36 22 250 90 510 142
Zinc, dissolved mg/I -0.01 0.11 0.03 0.01 B -0.01 U 0.02 B 0.02 B 0.01 B 0.11
Baseline 2007 ACZ Lab Qualifiers: U - Anal a was analyzed for but not detected at the
Z ACZ - ACZ Laboratory, Steamboat Springs, Colorado H - Holding time exceeded; pH is a field test with an immediate hold time.
3 Negative values denote readings below (less than) lab detection levels B - Analyte conc detected at a value bet method detection limit (MDL) and
Average (mean) value calculated using 1/2 of detection limit for readings below lab detection limits, unless all reading
are below detection limits. practical quantitation limit (PQL). .
West Elk Mine
E-36 2007 Annual Hydrology Report HydroGeo, Inc.