REP14584

• Permit No: C1980007
• IBM Index Class Name: Report
• Doc Date: 4/25/2003
• Doc Name: 2002 AHR Appendix A Thru D
• From: Mountain Coal Company
• To: DMG
• Annual Report Year: 2002
• Permit Index Doc Type: Hydrology Report
• Media Type: D
• Archive: No

Upper Sylvester Gulch
Surface Water l]uality and Field Parameters
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Mountain Coal West Elk Mine
Monitoring Location
D25Cri lion U. Sylvester Gulch
Units
Minimum Baseline
Maximum
Mean 2002 Water Year
4/29/2002 6/18/2002 9/9/2002
Field Parameters
Flow cFS 0.26 D.64 D.45 D D D
Electrical Conductivit umhos/cm 300 380 340
H SU 8.1 8.3 8.2
Tem erature oC 8.4 9.5 9
Laboreto Parameters
Name of Certifed Lab
Lab Reference #
Sam le Date
Lab Test Date
Sam led B
Alkalini Total CeCO3 !I
Aluminum, dissolved m /I
Anions me /I
Arsenic, dissolved m /I
Arsenic, total m /I
Bicarbonate m /I
Boron, dissolved m /I
Cadmium, dissolved m /I
Calcium, dissolved m A
Carbonate m /I
Cation -Anion Balance m /I
Cations me /I
Chloride m /I
Conductivi umhos/cm
Co er, dissolved m /I
Hardness m /I
H droxide m /I
Iron, dissolved m !I
Iron, total m /I
Lead, dissolved m /I
Lead, total m /I
Ma nesium, dissolved m A
Man anese, dissolved m /I
Man anese, total m /I
Mercu ,total m /I
Mol bdenum, dissolved m /I
Nitrate as N ,dissolved m /I
Nitrate/Nitrite as N m /I
Nitrite as N ,dissolved m /I
H SU
PhOS hate m /I
Phos horns Ortho ,dissolved m /I
Potassium, dissolved m /I
Selenium, total m /I
Sodium Atuor Lion Ratio SAR talc.
Sodium, dissolved m /I
Sulfate m /I
TDS Ratio talc.
TDS Calc. m /I
TDS m /I
TSS m /I
Zinc, dissolved m /I

ACZ Labs, Steamboat S rin s, Colorado
` Standard is for reference ur oses onl
NA - not a livable NM -not measured NR -not re orted

West Elk Mine
C-3 2002 Annual Hydrology Report HydroGeo, Inc.