REP48339

• Permit No: C1980007
• IBM Index Class Name: Report
• Doc Date: 9/13/2002
• Doc Name: 2001 AHR, Appendx E Thru Appendix H
• From: Mountain Coal Company
• To: DMG
• Annual Report Year: 2001
• Permit Index Doc Type: Hydrology Report
• Media Type: D
• Archive: No

Well SOM-13
Water Oualiry and Fleld Parameters
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Mountain Coel West Elk Mine
Monitori Location WeII SOM-13 Baseline gaol Water Year
Destti trop Units Minimum Maximum Moan 4/29/2001 6fL4Y2001 9!30/2001
Fie{d Parameters -
Water Level D M feet 182.48 182.5 182A6
Electrical Conductivi ~ umhos/ttn 840 ee0 640
H SU 7.6 7.5 7.7
Tem erature oC 742 14.8 142

Comment Insuaident
water to
samplo
Laborato Parameters
Name of Certified Lab
Lab Reference /1
Sam a Date
Lab Test Date
Sam ed B
Alkalini Total CaCO3 m I
Aluminum, dissdved m I
Ammonia m 0.375 0.487 0.421
Anions m
Arsenic, dissolved m
Arsenic, total m I
Bicarbonate m 460 Ss0 511
Boron, dissolved m I
Cadmium, dissolved m I
Calcium, dissolved m 1
Carbonate m 1
Cation -Anion Balance Yo
Cations m
Chbride m I 6 13 10
Conductivi umhos/cm
Co ,dissdved m~ I
Hardness m 249 292 264
H roxide m
Iron, dissolved m 0 0.027 0.009
Iron, local m I 0.37 1.07 0.61
Lead, dissolved m I
Ma nesium, dissolved m I
Man anew, dissolved m 0.006 0.026 o.ot3
Man anew, local m
Mercur ,total m I
Mol denum dissolved m I
NitrateMitrite as N m I
Nitro n, ammonia m 1
H SU 7.15 7.55 7.37
Phos hate m I
Phos horns Ortho ,dissolved m a 0.065 0.012
Potassium, dissolved m
Selenium, dissolved m
Selenium, total m I
Sodium Absor lion Ratlo SAR talc.
Sodium, dissolved m I
Sulfate m I 32.9 77.5 61
TDS Ratro talc.
TDS Calc. - m
TDS m I 512 '688 622
TSS m I
Zinc, dissdved m I

AAL. Inc -American Assa Laboratories, In c., S arks, Nevada
Standard is for reference u ores onl
NA - not a licable NM • nol measured NM -not re orted

West Elk Mine
G-7 2001 Annual Hydrology Report HydioGeo, /ne.