REP45780

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

Well SOM-13
Water Quality and Field Parameters
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Mountain Coal West Elk Mine
Monitoring Location Well SOM-13 Baseline 2003 Water Year
Descri lion Units Minimum Maximum Mean 4/11/2003 6/5/2003 9/28/2003
Field Parameters
Water Level De th feet 182.01 182.12 182.09
Electrical Conductivit umhos/cm 950 7021 877
H SU 7.4 7.51 7.31
Tem erature oC 58.7 55.7 61.4
Comment
Laborato Parameters
Name of Certified Lab
Lab Reference #
Sam le Date
Lab Test Date
Sam led B
Alkalini Total CaCO3 m /I
Aluminum, dissolved m /I
Ammonia m /I 0.375 0.487 0.421
Anions me /I
Arsenic, dissolved m /I
Arsenic, total m /I
Bicarbonate m /I 460 590 511
Boron, dissolved m /I
Cadmium, dissolved m /I
Calcium, dissolved m /I
Carbonate m /I
Cation -Anion Balance
Cations me /I
Chloride m /I 6 13 10
Conductivi umhos/cm
Co er, dissolved m /I
Hardness m /I 249 292 264
H droxide m A
Iron, dissolved m A o 0.027 0.009
Iron, total m A 0.37 1.07 0.61
Lead, dissolved m A
Ma nesium, dlssolved m 11
Man anese, dissolved m /I 0.006 0.026 0.013
Man anese, total m /l
Mercu ,total m /I
Mol bdenum, dissolved m /I
Nitrate/Nitrite as N m /I
Nitro en, ammonia m I
H SU 7.15 7.55 7.37
Phos hate m I
Phos horns Ortho ,dissolved m /I 0 0.065 0.012
Potassium, dissolved m /I
Selenium, dissolved m !I
Selenium, total m /I
Sodium Absor lion Ratio SAR talc.
Sodium, dissolved m
Sulfate m /I 32.9 77.5 61
TDS Ratio talc.
TDS Calc. ~ m /I
TDS m /I 512 688 622
TSS m /I
Zinc, dissolved m /I

ACZ -ACZ Labs, Steamboat S rin s, Colorado
"Standard is for reference ur oses onl
NA - not a livable NM -not measured NM -not re rted

West Elk Mine
G-7 2003 Annual Hydrology Report HydroGeo, Inc.