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 10-1
Water duality and Field Parameters

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Mountain Coal West Elk Mine
Monitoring Location Sprin 10.1 Baseline 2005 Water Year
Descd lion Units Minimum Maximum Mean 5/2/2005 6/4/2005 9/14/2005
Field Parameters
FIOW m 0.43 0.23 Wet
EleCtriCel Conductive µmhos/Cm 2190 2190
H SU 7.58 7.58
Tem erature C °C
Tem erature F °F 49.5 49.5
Comment
Laborato Parameters
Name of Certified Lab Acz
Lab Reference # L5t496-01
Sam le Date 6/4/2005
Lab Test Dale 818-7/1
Sam led B
Alkalinity (Total CaCO~) mg/I
Aluminum, tliss0lved m /I
Anions me /I
Arsenic, dissolved m ll
Arsenic, total m ll
Bicarbonate m /I
Boron, dissolved m 11
Cadmium, dissolved m ll
Calcium, total m 1
Calcium, dissolved m /l
Carbonate m /I
Cation -Anion Balance m if
Cations me /I
Chloride m /I
COndUClivi µmhos/Cm 1970
Co er, dissolved m A
Hardness m /I
H droxide m A
Iron, dissolved m /I 0.04
IfOn, total m /I 1.08
Lead, dissolved m /I
Ma nesium, dissolved m /I
Man anese, dissolved m /I
Man anese, total m /I
Mercu ,total m /I
Mol btlenum, dissolved m /I
Nitrate as N m /1
Nitrate/Nitrite as N m /I
Nitrite as N m /I
H SU 8.3
Phos hate m /l
Phos horns Ortho , dissolvetl m /I
Potassium, 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 /1
TDS m /I tzso
TSS m /I 26
Zinc, dissolved m /l
Zinc, total m /I

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

West Elk Mine
E-15 2005 Annual Hydrology Report HydroGeo, Inc.