REP35905

• Permit No: C1980007
• IBM Index Class Name: Report
• Doc Date: 4/17/2007
• Doc Name: 2005 AHR Appendix E Thru H
• From: Hydro Geo Inc
• To: DRMS
• Annual Report Year: 2005
• Permit Index Doc Type: Hydrology Report
• Media Type: D
• Archive: No

Spring G-1A
Water Quality and Feld Parameters

Mountain Coal West Elk Mine
Monitoring Location Spring G-7A Baseline 2005 Water Year
Descri lion Units Minimum Maximum Mean 5/1/2005 6/4/2005 9120/2005
Field Parameters
Flow m No flow Wet D
Electrical Conductivity µmhos/cm i573
H SU 7.as
Tem erature °C °C
Tem erature °F °F 53.3
Comment
Laborato Parameters
Name of Certified Lab
Lab Reference #
Sam le Date
Lab Tesl Date
Sam led B
Alkalinity (Total CaCO3) mg/I
Aluminum, dissolved m /I
Anions me /I
Arsenic, dissolved m /I
Arsenic, total m /I
Bicarbonate m /I 286 501 342
Boron dissolved m 1
Cadmium, dissolved m /I
CelCium, dissolved m /I 69.4 69.4 69.4
Carbonate m /I
Cation -Anion Balance m /I
Cations me /I
Chloride m /l 4 17 8
Conductivity µmhos/Cm 570 s72 szt
Co er, dissolved m /1
Hardness m /I 266 271 269
H droxide ~ m /I
Iron, dissolved m /I
Iron, total m /I t.t8 0.2
Lead, dissolved m /I
Ma neeium, dissolved m /I 23.7 25.9 24.8
Man anese, tlissolved m /I o.oos o.oos o.oofi
Man anese, total m /I o.03 o.0oa
Mercu ,total m /I
Mol bdenum, dissolved m /I
Nitrate as N m /I
Nitrate/Nitrite as N m /I 0.23 0.06
Nitrite as N m /I
H SU 7.9 8.5 8.t7
Phos hate m /I
Phos horns Ortho ,dissolved m /I 0.04 0.01
Potassium, dissolved m /I
Selenium, total m /I
Sodium Abso lion Ratio SAR talc. t.22 tst t.37
Sodium, dissolved m /l 50.4 50.4 50.a
Sulfate m / 40 207 83
TDS Ratio talc.
TDS Calc. m /I
TDS m /I 312 550 396
TSS m /I 66 to
Zinc, dissolved m9/I

ACZ Laborato , Steamboat S rin s, Colorado
Ne alive values denote readin s below lab detection levels
NA - not a licable NM -not measured NR -not re orted

West Elk Mine
E-18 2005 Annual Hydrology Report HydroGeo, Inc.