REP08730

• Permit No: C1980007
• IBM Index Class Name: Report
• Doc Date: 8/25/2005
• Doc Name: 2004 AHR Appendix F Thru H
• From: HydroGeo Inc
• To: DMG
• Annual Report Year: 2004
• Permit Index Doc Type: Hydrology Report
• Media Type: D
• Archive: No

Well SOM-'129-H
Water Quality and Field Parameters

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Mountain Coal West Elk Mine
Monitorin Location Well SOM-129-H Baseline 2004 Water year
Descri lion Units Minimum Maximum Mean 4/26/2004 5/27/2004 9/7/2004
Field Parameters
Water Level De th feet 225.7 228.23 228.35
Electrical Conductivity µmhos/cm 14580 14610 13150
H SU 8.22 8.29 8.19
Tem erature °C 54.8 84.8 81.5
Comment
Laborato Parameters
Name of Certified Lab AC2
Lab Reference # L47654-05
Sam le Date snn6o4
Lab Test Date 9/10-9/28
Sam led B
Alkalinity (Total CaCO~) mgA
Aluminum, dissolved m A
Ammonia m A
Anions me A
Arsenic, dissolved m /I
Arsenic total m A
Bicarbonate m A
Boron, dissolved m A
Cadmium, dissolved m A
Calcium, dissolved m A
Carbonate m ll
Cation -Anion Balance
Cations me A
Chloride A
Conductivity µmhos/cm 11200
Co er, dissolved m A
Hardness m /I
H droxide m /I
Iron, dissolved m ll o.tt
Iron, total m /I o s.s 2 I.St
Lead, dissolved m I
Ma nesium dissolved m A
Man anese dissolved m /I
Man anese, total m A o 0.3 0.1
Mercu ,dissolved m A
Mol denum, dissolved m /I
NitrateAJitrite as N m /I
Nitro en, ammonia m /I
H lab SU e.3
Phos hate m A
Phos horns Ortho ,dissolved m A
Potassium, dissolved m A
Selenium, dissolved m /I
Selenium, total m A
Sodium Abso lion Ratio SAR talc.
Sodium, dissolved m A
Sulfate m /l
TDS Ratio talc.
TDS Calc. m A
TD$ m A 3206 3924 3559 8360
TSS m ~
Zinc, dissolved mgA

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

West Elk Mine
G-19 2004 Annual Hydrology Report HydroGeo, Inc.