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-20
Water duality and Field Parameters
•
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Mountain Coal West Elk Mine
Monitoring Location Spring G-20 Baseline 2003 Water Year
Descri lion Units Minimum Maximum Mean 4/10/2003 6/2J2003 9/23/2003
Field Parameters
Flow m 0.65 0.65 0.29
Electrical Conductivit umhos/cm 1060 908 1011
H SU 8.14 7.76 8.22
Tem erature oC 43.7 61.3 54.8
Comment
Laboreto Parameters
Name of Certified Lab ACZ
Lab Reference # L41507-12
Sam le Date 6/2/2003
Lab Test Dale 6/6-6/14
Sam led B
Alkalini otal CaCO3 m /I
Aluminum, dissolved m /I
Anions me /I
Arsenic, dissolved m /I
Arsenic, toial m 11
Bicarbonate m /I 452 657 539
Boron, dissolved m !I
Cadmium, dissolved m A
Calcium, dissolved m A 81 81 81
Carbonate m /I
Cation -Anion Balance m /I
Cations me /I
Chloride m /I 1.2 10 5.3
Conductivi umhos/cm 970 1090 1023 798
Co er, dissolved m /I
Hardness m /I 193 416 318
H droxide m /I
Iron, dissolved (I 0.05 0.01 0.02
Iron, total m /I 0.32 0.05 0.28
Lead, dissolved m /I
Ma nesium, dissolved m /I 33.3 33.3 33.3
Man anese, dissolved m A 0.002 0.002 0.002
Man anese, total m /I 0.06 0.005
Mercu ,total m /I
Mol bdenum, dissolved m /I
Nitrate as N m /I
Nitrate/Nitrite as N m /I 0.01 0.05 0.03
Nitrite as N m /I
H SU 7 8.1 7.7 8.4
Phos hate m /I
Phos horns Ortho ,dissolved m /I 0.15 0.02
Potassium, dissolved m /I
Selenium, total m /I
Sodium Absor lion Ratio SAR talc. 2.31 2.73 2.52
Sodium, dissolved m A 102 102 102
Sulfate m /I 16 117 81
TDS Ratio talc.
TDS Calc. m ii
TDS m /I 502 686 ssa 470
TSS m /I 19.6 3.5 -5
Zinc, dissolved m /I

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 orted

West Elk Mine
E-12 2003 Annual Hydrology Report HydroGeo, Inc.