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 Minnesota Creek(USFS)
Surtace Water duality and Field Parameters
•
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Mountain Coal West Elk Mine
Monitoring Location U. Minnesota Ck (USES) Baseline 2002 Water Year
DesCri lion Units Minimum Maximum Mean 4/14/2002 6/17/2002 9/10/2002
Field Parameters
Flow cfs NM NM NM
Electrical Conductivi umhos/cm 496 223 277
H SU 8.07 7.94 7.48
Tem erature oC 5.3 11.2 17.6
Comment O.G =0.75
Laborato Parameters
Name of Certified Lab ACZ
Lab Reference # L373o6-02
Sam le Date 6/17/2002
Lab Test Date 6/20-7/10
Sam led B GV
Alkalinit Total CaC03 m /I
Aluminum, dissolved m /I
Anions me /I
Arsenic, dissolved m /I
Arsenic, total m A
Bicarbonate m /I
Boron, dissolved m /I
Cadmium, dissolved m /I
Calcium, dissolved m /I
Carbonate m /I
Cation -Anion Balance m /I
Cations me /I
Chloride m /I
Conductivi umhos/cm 175
Co er, dissolved m /I
Hardness m /I
H droxide m /I
Iron, dissolved m /I 0.14
Iron, total m /I 1.3
Lead, dissolved m /I
Ma nesium, dissolved m /I
Man anese, dissolved m /I
Ma 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 7.5
Phos hate m /I
Phos horns Ortho ,dissolved m /I
Potassium, dissolved m /I
Selenium, total m /I
Sodium Absor lion Ratio SAR talc.
Sodium, dissolved m /I
Sulfate m /I
TDS Ratio talc.
TDS Calc. m /I
TDS m /I 120
TSS m /I 110
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 EIk Mine
C-7 2002 Annual Hydrology Report HydroGeo, Inc.