REP35905

• Permit No: C1980007
• IBM Index Class Name: Report
• Doc Date: 4/17/2007
• Doc Name: 2005 AHR Appendix E Thru H
• From: Hydro Geo Inc
• To: DRMS
• Annual Report Year: 2005
• Permit Index Doc Type: Hydrology Report
• Media Type: D
• Archive: No

Spring G-24
Water Quality and Field Parameters
C~
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Mountain Coal West Elk Mlne
Monitodng Location Spring G-24 Baseline 2005 Water Year
Descfi Lion Units Minimum Maximum Mean 5/2/2005 6/4/2005 9/20/2005
Fieltl Parameters
FIOw m 1.37 1.59 0.992
ElecMcal Conductivity µmhos/cm 1190 99z 792
H SU 7.22 6.92 6.45
Tem erature °C °C
Tem erature °F °F 45.4 46.2 52.1
Comment
Laborsto Parameters
Name of Certified LaD ACZ
Lab Reference # L51496-06
Sam le Date s/a/zoos
Lab Test Date 6/B-7/t
Sam led B
Alkalinity (Total CaCO~) mg/I
Aluminum, dissolvetl m /I 0.08 0.04
Anions me /1
Arsenic, dissolved m A
Arsenic, total m A 0.001 0.001 0.001
Bicarbonate m /I 267 376 307
Boron, dissolved m /I
Cadmium, dissolved m /I
Calcium, dissolved ~ m /I 56.4 56.4 56.4
Carbonate m /I
Cation -Anion Balance m /I
Cations me /I
Chloride m A t2 1o a.4
Conductivity µmh05/Cm 550 564 557 828
Co er, dissolved m A
Hardness m /I 176 233 203
H droxide m /I
Iron, dissolvetl m /I 0.1 0.03 0.06
Iron, total m /I 2.28 0.45 0.51
Lead, dissolved m /I
Ma nesium, dissolved m /I 15.9 16.5 16.2
Man anese, dissolved m /I 0.006 0.002
Man anese, total m /I 0.048 0.005
Mercu ,total m /I
M01 bdenum, dissolved m /I
Nitrate as N ,dissolved m /I
Nitrate/Nitrite as N m A 0.05 0.1 o.oe
Nitnte as N ,dissolved m /I
H SU 7.2 8.3 7.8 7.4
Phos hate m /I
Phos horns Ortho ,dissolved m /I 0.705 0.027
Potassium, dissolved m /I
Selenium, dissolved m /I
Selenium, total m /I
Sodium Abso lion Ratio SAR talc. 1.8 1.8 7.8
Sodium, dissolved m /I 58.9 58.9 58.9
Sulfate m P 21.2 70 30.5
TDS Ratio talc.
TDS Calc. m /I
TDS m /I 214 520 362 470
TSS m /I 102 21 -5
Zinc, dissolved mg/I
West Elk Mine
E-11 2005 Annual Hydrology Report HydroGeo, Inc.