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-22
Water Quality and Field Parameters
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Mountain Coal West Elk Mine
Monitoring Location Spring G-22 Baseline 2003 water Year
Descri tion Units Minimum Maximum Mean 4/70/2003 6/2/2003 9/23/2003
Field Parameters
Flow m 6.8 3.83 1.03
Electrical Conductivi umhos/cm 1600 1506 1588
H SU 7.53 7.55 7.16
Tem ereture oC 52.2 65.5 56.9
Comment
Laborato Parameters
Name of Certified Lab ACZ
Lab Reference # L41507.17
Sam le Date 6/5/2003
Lab Test Date 6/6-6/17
Sam led B
Alkalinit Total CaCO3 m /I
Aluminum, dissolved m /I
Anions me /I
Arsenic, dissolved m /l
Arsenic, total m /I
Bicarbonate m /I 287 359 332
Boron, dissolved m /I
Cadmium, dissolved m /I
Calcium, dissolved m /I 64.9 64.9 64.9
Carbonate m /I
Cation -Anion Balance m /I
Cations me /I
Chloride m /I 3 18 7
Conductivi umhos/cm 633 640 637 1260
Co er, dissolved m A
Hardness m /I 180 270 234
H roxide m /I
Iron, dissolved m /I 0.05 0.01 0.02
Iron, total m /I 0.2 0.08 1.74
Lead, dissolved m n 0.02 0.02 0.02
Ma nesium, dissolved m / 19 19.9 19.5
Man anese, dissolved m /I
Man anese, total m /I 0.85 0.11
Mercu ,total m /I
Mol bdenum, dissolved m /I
Nitrate as N ,dissolved m /I
Nitrate/Nitrite as N m /I 0.08 0.08 0.08
Nitrite as N ,dissolved m /I
H SU 7 7.9 7.6 Zs
Phos hate m /I
Phos horns Ortho ,dissolved m /I O.Oaa 0.019
Potassium, dissolved m /I
Selenium, total m /I
Sodium Absor lion Ratio SAR talc. 1.78 1.92 1.85
Sodium, dissolved m /I ss.1 66.7 ss.7
Sulfate m !I 2a e0 at
TDS Ratio talc.
TDS Calc. m /I
TDS m /I 300 516 388 770
TSS m /I 24 5 64
Zinc, dissolved m /I

ACZ -ACZ Laborato Steamboat S rin s Colorado
Standard is for reference u ses onl
NA - not a livable NM -not measured NR -not re orted

West Elk Mine
E4 2003 Annual Hydrology Report HydroGeo, Inc.