REP47787

• Permit No: C1980007
• IBM Index Class Name: Report
• Doc Date: 9/13/2002
• Doc Name: 2001 AHR, Intro Thru Appendix D
• From: Mountain Coal Company
• To: DMG
• Annual Report Year: 2001
• Permit Index Doc Type: Hydrology Report
• Media Type: D
• Archive: No

Upper Minnesota Creek(USFS)
Surtace Water Quality and Field Parameters

I•
Mountain Coal West Elk Mine
Monitorin Location U. Minnesota Ck (USES) Baseline 2001 Water Year
Descri lion Unite Minimum Maximum Mean 4/26/2001 6/24/2001 9/29/2001
Field Parameters
FIOW Cf5 NM NM NM
Electrical Conductiv' umhos/cm 320 140 240
H SU a.6 B.t 8.1
Tem rature oC 15.8 16.8 t6.1
Comment O.G.=0.82 O.G.~.82
Laborato Parameters
Name of Cert'rfied Lab ACZ
Leb Reference # L32666-09
Sam le Date fir24/2001
Lab Test Date 6/27.7/09
Sam led B R.H.
Aikalini Total CaCO3 m A
Aluminum, dissolved m A
Anions me
Arsenic, dissolved m /1
Arsenic, total m A
Bicarbonate m A
Boron, dissolved m A
Cadmium, dissolved m A
Calcium, dissolved m A
Carbonate m A
Cation -Anion Balance m A
Cations me A
Chloride m
Conductivi umhos/cm 183
Co er, dissolved m
Hardness m /I
H droxide m /I
Iron, dissolved m A o.as
Iron, total m 0.86
Lead, dissolved m
Ma nesium, dissolved m A
Man anese, dissolved m A
Man anese, total m A
Mercu ,total m A
Mol bdenum, dissolved m A
Nitrate as N ,dissolved m A
NitrateMitrite as N m /I
Nitrite as N ,dissolved m A
H SU 7.8
Phos hate m A
Phos horns Ortho ,dissolved m A
Potassium, dissolved m A
Selenium, total m A
Sodium Abso lion Ratio SAR talc.
Sodium, dissolved m
Sulfate m /I
TDS Ratio talc.
TDS Calc. m A
TDS m A 130
TSS m A 46
Zinc, dissolved m /I

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

West Elk Mine
C-7 2001 Annual Hytlrology Report HydroGeo, Ine.