HYDRO27992

• Permit No: C1980007
• IBM Index Class Name: Hydrology
• Doc Date: 1/31/2005
• Doc Name: 4th Qtr 2004 SGS Reports
• From: Mountain Coal Company
• To: DMG
• Permit Index Doc Type: DMR’s
• Media Type: D
• Archive: No

December 08, 2004
Mountain Coal Company
West Elk Mine
P.O. Box 591
Somerset, CO 81434
USA
Client Sample ID: 017 Discharge Date Sampled : 11/09/2004
Date Received: 11/10/2004 Project Name/# : West Elk Mine
Matrix: Water Sample Taken By: Michael Brejonick
Time Sampled : 9:00 A.M.
SGS Sample ID: 072-11603-001
ANALYZED
1NALYTE RESULT METHOD LOD DATEITIME ANALYST
Ikalinity, Bicarbonate 2300 mg/L HC03 SM2320 B 1 11/18/2004 0750 JD
Ikalinity, Carbonate 13 mg/L C03 SM2320 B 1 11/18/2004 0750 JD
Ikalinit)r, Total 1900 mg/L CaC03 SM2320 B 1 11/18/2004 0750 JD
romide, Total 1.9 mg/L EPA300.0 0.02 11/15/2004 1500 CV
hloride, Total 390 mg/L EPA300.0 1 11/15/2004 1500 CV
onductivity 5000 umhos/cm SM2510 B 1 11/10/2004 0950 JD
luoride„ Total 2.95 mg/L EPA300.0 0.02 11/15/2004 1500 CV
on, Dissolved 0.20 mg/L EPA200.7 0.01 11/18/2004 1726 JS
on, Potentially Dissolved 0.54 mg/L EPA200.7 0.01 11/18/2004 1810 JS
luminum, Total 0.70 mg/L EPA200.7 0.02 11/17/2004 1644 JS
arium, Total 0.430 mg/L EPA200.7 0.005 11/17/2004 1644 JS
oron, Total 3.0 mg/L EPA200.7 0.02 11117/2004 1644 JS
alcium, Total 13 mg/L EPA200.7 0.01 11/17/2004 1644 JS
on, Total 0.6B mg/L EPA200.7 0.01 11/17/2004 1644 JS
thium, Total 0.524 mg/L EPA200.7 0.005 11/17/2004 1644 JS
agnesium, Total 6.3 mg/L EPA200.7 0.01 11/17!2004 1644 JS
'angan~sse, Total 0.085 mg/L EPA200.7 0.005 11/17/2004 1644 JS
otassium, Total 20 mg/L EPA200.7 0.05 11/17/2004 1644 JS
ilicon, Total 7.6 mg/L EPA200.7 0.05 11/17/2004 1644 JS
odium, Total 1200 mg/L EPA200.7 0.05 11117/2004 1644 JS
trontiurn, Total 2.3 mg/L EPA200.7 0.005 11117/2004 1644 JS
nc, To1:al 0.015 mg/L EPA200.7 0.005 11/17/2004 1644 JS
itrogen, Ammonia <0.05 mg/L SM4500-NH3 H 0.05 12/03/2004 1118 JL
itrogen, Nitrate 0.17 mg/L EPA300.0 0.02 11/15/2004 1500 CV
M E IVI B E R Respecttully submittetl,
. SG~S(N/ORTH AMERRICA INDC.
Page 'I of 2 Denver Laboratory
SGS North America Inc. Minerals Services Division
4665 Paris Street, Suite B-200, Denver, CO 80239 t (3D31373-4772 f 13031373-4791 www.sgs.com
F<es Member of the SGS Grpup