REP49923

• Permit No: C1980007
• IBM Index Class Name: Report
• Doc Date: 9/22/2006
• Doc Name: 2005 AHR Appendix A Thru D
• From: HydroGeo, Inc
• To: DRMS
• Annual Report Year: 2005
• Permit Index Doc Type: Hydrology Report
• Media Type: D
• Archive: No

Upper Mlnnasota Creek (USES)
Surtace Water Quality and Fieltl Parameters
i

J
C-7
Mounlaln Coal West Elk Mine
Moni[ortng Location U. Minnesota Ck (USES) Flume Baseline 20 05 Water Year
Descri lion Units Minimum Maximum Mean 5/1/2005 6/5/2005 9/6/2005
Field Parameters
Flow Staff Gau a or cFs 1.58 Floodin 0.477
Electrical Conductivi UmhoS/cm 515 278 433
H SU 7.6 7.84 8.64
Tern erature (°C °C
Tern stature °F) °F 47.fi 44.2 64.0
Comment
Labarato Parameters'
Name of Certified Lab ACZ
Lab Reference # L51496-10
Sam le Data 6/5/2005
Lab Test Dale 6/B-711
Sam ied B
Alkalini otal CaC03 m A
Aluminum, tlissolved m
Anions me A
Arsenic, dissolved m II
Arsenic, total m P
Bicarbonate m A
Baron, dissolved m A
Cadmium, tlissolved m 11
Calcium, dissolved A
Carbonate m
Cation -Anion Balance
Cations me !I
Chloride m
Contluctivi umhos/cm 155
Co er, dissolved m
Hardness m /1
H droxide m A
Iron, dissolved m R 0.05
Iron, total m /I 3.at
Lead, dissolved m A
Lead, total m fl
Ma nesium, dissolved m A
Man anese, dissolved m /I
Man anese, total m n
Mercu ,total m
Mol denum, dissolved m A
Nitrate as N ,dissolved m /l
Nibate/Nitrite as N m
Nitrite as N ,dissolved m /I
H lab SU e.o
Phos hate m /I
Phos horns Ortho ,dissolved m A
Potassium, dissolved m A
Selenium, dissolved m R
Selenium, total m /I
Sodium Abso lion Ratio SAR talc.
Sodium, dissolved m /I
Sulfate m A
TDS Ratio talc.
TDS Calc. m /I
TDS ~ m 11 110
TSS m A 98
inc, dissoly mgfl
'Baseline WY 2000, and WY 2001 data ada ted from WWE.
ACZ -ACZ Laboratories, Inc., Steamboat S rin s, CO
Ne alive values denote reatlin s below lab detec0on levels
NM -Not Measured

West Elk Mine
2005 Annual Hytlrology Report HydroGeo, Inc.