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 RPE-7
Water Quality and Field Parameters
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r1
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G-6
Mountain Coal West Elk Mine
Monitodn Location Well RPE-7 Baseline 6004 Water year
Descri lion Units Minimum Maximum Mean 5/4/2004 5/27/2004 9/5/2004
Field Parameters
Water Level De th feet D D D
Electrical Conductivity µmhas/cm
H SU
Tem erature °C
Comment
Laborato Parameters
Name of Certified Lab
Lab Reference #
Sam le Dale
Lab Test Date
Sam led B
Alkalinity (Total CaCOa) mgA
Aluminum, dissolved m A
Ammonia m 11
Anions me A
Arsenic dissolved m A
Arsenic, total m 4
Bicarbonate m A
Boron, dissolved m A
Cadmium, dissolved m R
Calcium, dissolved m A
Carbonate m A
Cation -Anion Balance
Cations me /I
Chloride m /I
Conductivity µmhoslcm
Co er dissolved m A
Hardness m /I
H droxide m /I
Iron, dissoved m /I
Iron total m /I
Lead, dissolved m A
Ma nesium, dissolved m ll
Man anese, dissolved m A
Man anese, total m A
Mercu ,total m A
Mo denum dissolved m A
Nitrate/Nitrite as N m ll
Nitro en ammonia m A
H SU
Phos hate m A
Phos horns Ortho ,dissolved m /I
Potassium, dissolved m ll
Selenium, dissolved m /I
Selenium, total m /I
Sodium Abso lion Ratio SAR talc.
Sodium, dissolved m /I
Sulfate m /I
TDS Ratio talc.
TDS Calc. m
TDS m A
TSS m /I
Zinc, dissolved m /1

AC2 Labs, 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
2004 Annual Hydrology Report HydroGeo, Inc.