REP08333

• Permit No: C1980007
• IBM Index Class Name: Report
• Doc Date: 9/16/2004
• Doc Name: 2003 Annual Hydrology Report Appendix D Through E
• From: Hydro Geo Inc
• To: DMG
• Annual Report Year: 2003
• Permit Index Doc Type: Hydrology Report
• Media Type: D
• Archive: No

Spring G-14
Water Quality and Field Parameters
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Mountain Coal West Elk Mine
Monitoring Location Spring G-74 Baseline 2003 Water Year
Descri lion Units Minimum Maximum Mean 4/10/2003 6/2/2003 9/23/2003
Field Parameters
Flow m 1.9 1.3 0.51
Electrical Conductivit umhos/cm 1330 1284 1276
H SU 7.86 7.74 7.29
Tem erature oC 44.5 44.2 47.1
Comment
Laborato Parameters
Name of Certified Lab AGZ
Lab Reference # L41507-14
Sam le Date 6/5/2003
Lab Test Date 6/6-6/17
Sam led B
Alkalini Total CaCO3 m /I
Aluminum, dissolved m /I
Anions me /I
Arsenic, dissolved m /I
Arsenic, total m /I 0.001 0.001 0.001
Bicarbonate m /I 325 484 406
Boron, dissolved m /I
Cadmium, dissolved m !I
Calcium, dissolved m /I 54.9 61.4 58.2
Carbonate m /I
Cation -Anion Balance m /I
Cations me /I
Chloride m /I 2 14 6
Gonductivi umhos/cm 553 682 637 982
Go er, dissolved m 11
Hardness m /I 215 307 257
H droxide m /I
Iron, dissolved m !I 0.11 0.02 -0.02
Iron, total m /I 3 0.1 -0.01
Lead, dissolved m 11
Ma nesium, dissolved m /I 21.5 29.8 24.6
Man anese, dissolved m /I
Man anese, total m /I 0.03 0.003
Mercu ,total m /I
Mol bdenum, dissolved m /I
Nitrate as N ,dissolved m /I
Nitmte/Nitrite as N m !I 0.12 0.21 0.16
Nitrite as N ,dissolved m /I
H SU Z1 8.2 Z7 7.7
Phos hate m A
Phos horns Odho ,dissolved m /I 2.08 0.15
Potassium, dissolved m /I
Selenium, total m /I 0.001 0.001 0.001
Sodium Abso lion Ratio SAR talc. 2.22 3.11 2.53
Sodium, dissolved m /I 81.3 114 97.7
Sulfate m /I 40 150 88
TDS Ratio talc.
TDS Calc. m /I
TDS m /I 324 708 499 610
TSS m A 107 5 -5
Zinc, dissolved m 11

ACZ -ACZ Laborato Steamboat S rin s Colorado
' Standard is for reference ur oses onl
NA - not a livable NM -not measured NR -not re rted

West Elk Mine
E-2 2003 Annual Hydrology Report HydroGeo, Inc-