REP26018

• Permit No: C1980007
• IBM Index Class Name: Report
• Doc Date: 9/22/2006
• 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

SpNng G-24
Water Quality and Field Paramatars

•
Mountain Coal Wesl Elk Mine
Monitoring Location Sprtn G•24 Baseline 2005 Water ye ar
DeSCri lion UnltS Minimum Maximum Mean 5/2/2005 fi/4/2005 9/20/2005
Field Parameters
Flow m 1.37 1.59 0.992
Electrical Conductivity µmhos/cm 1190 ss2 792
H SU 7.22 6.92 6.45
Tem erature °C °C
Tem erature °F °F 05.4 06.2 52.1
Comment
Laborato Parameters
Name of Certified Lab ACZ
Lab Reference # L5t496-Ofi
Sam le Date 6/4/loos
Lab Test Date 6/9-7/1
Sam led B
Alkalinity (Total CaCOt) mgA
Aluminum, dissolved m /I 0.09 0.04
Anions me /I
Arsenic, dissolved m /I
Arsenic, total m A 0.001 0.001 d.oot
Bicarbonate m 4 267 376 307
Boron, dissolved m /I
Cadmium, dissolved m /1
Calcium, dissolved m /I 56.4 56.4 56.0
Carbonate m /I
Cation -Anion Balance m /I
Cations me /I
Chlodde m ll 1.2 to 4.4
Conductivity µmhos/cm 550 564 557 929
Co er, dissolved m A
Hardness m /I 176 233 2oa
H droxide m /l
Iron, dlss0VOd m /I 0.1 0.03 0.06
Iron, t0I91 m A 2.28 0.45 0.51
Lead, dissolved m fi
Ma ne5ium, dissolved m /I 75.9 16.5 16.2
Man anese, dissolved m /I 0.006 0.002
Man anese, total m /I o.oae 0.005
Mercu ,total m /I
Mol bdenum, dissolved m fl
Nitrate as N , dissolved m A
Nitrate/Nitdte as N m fl 0.05 0.1 0.09
Nitdte as N ,dissolved m /I
H SU 7.2 8.3 7.9 7.4
Phos hate m /I
Phos horns Ortho ,dissolved m /1 o.tos 0.027
Potassium, dissolved m A
Selenium, dissolved m /l
Selenium, total m A
Sodium Abso lion Ratio SAR talc. t.6 t.e t.e
Sotlium, dissolved m /I 59.9 59.9 58.9
Sulfate m fl 21.2 70 30.5
TDS Ratio talc.
TDS Calc. m h
TDS m /I 274 520 362 470
TSS m /I 102 21 -5
Zinc, dissolved mg/I
West Elk Mine
E-11 2005 Annual Hydrology Report HydroGeo, Inc.