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-25 (15)
Water Quality and Field Parameters
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1
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Mountain Coal West Elk Mine
Monitoring Location Spring G-25 Baseline 2003 water Year
DesCri lion Units Minimum Maximum Mean 4/13/2003 6/2/2003 9/23/2003
Field Parameters
Flow m 1.45 2.35 0.34
Electrical Conductivi umhos/cm 1840 2000 2070
H SU 7.46 7.19 7.55
Tem erature oC 47.5 48.1 45.5
Comment
Laborato Parameters
Name of Certified Lab ACZ
Lab Reference # L41471-09
Sam le Date 6/2/2003
Lab Test Date 6/5-8/12
Sam led B
Alkalini Total CaCO3 m /I
Aluminum, dissolved m /I
Anions me /I
Arsenic, dissolved m /I
Arsenic, total m /I
Bicarbonate m /I 224 828 573
Boron, dissolved m /I
Cadmium, dissolved m /I
Calcium, total m /I
Calcium, dissolved m /I
Carbonate m /I
Cation -Anion Balance m A
Cations me /I
Chloride m I 2 20 6
Conductivi umhos/Cm 777 1320 1134 1570
Co er, dissolved m /I
Hardness m /I 219 1379 514
H droxide m /I
Iron, dissolved m /I 0.135 0.022 -0.02
Iron, total m /I 0.99 0.09 0.19
Lead, dissolved m /I o.02 0.02 0.02
Ma nesium, dissolved m /I 70.9 70.9 70.9
Man anese, dissolved m /I
Man anese, total m 0.01 0.002
Mercu ,total m /I
Mol bdenum, dissolved m /I
Nitrate as N m A
Nitrate/Nitrite as N m /I 0.19 1.22 0.4
Nitrite as N m 1
H SU 6.85 8.5 7.44 7.7
Phos hate m /I
Phos horns Ortho ,dissolved m A 1.55 0.09
Potassium, dissolved m /I
Selenium, total m 11
Sodium Absor lion Ratio SAR talc. 0.49 3.8 2.2
Sodium, dissolved m /I
Sulfate m /I 88 325 242
TDS Ratio talc.
TDS Calc. m 11
TDS m /I 336 1170 843 1010
TSS m A 26 7 8
Zinc, dissolved m /I
Zinc, total 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•19 2003 Annual Hydrology Report HydroGeo, Inc.