REP19655

• Permit No: C1996083
• IBM Index Class Name: Report
• Doc Date: 5/8/2006
• Doc Name: 2005 Annual Hydrology Report Part 2
• From: J.E. Stover & Associates Inc
• To: DMG
• Annual Report Year: 2005
• Permit Index Doc Type: Hydrology Report
• Media Type: D
• Archive: No

Bowie Resources, LLC Surface Water
Bowie No. 2 Mine
2005 Annuaf Hydrology Report HUB-up
Hubbard Creek -Drainage System
Elevation - 6320
Initiated 9/30/1998 9/30/1998 9/30/1996 9/30/1996
Activated 4/1/2002 4/1/2002 4/1/2002 4/1/2002
Date 12/21/2005 9/28/2005 8/27/2005 3/19/2005
Summary Information

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UNITS Min Ave Max Min Ave Max
Flow CFS 2.63 19.38 152.81 0.90 11.66 68.18 N/A 3.44 88.16 8.11
FieldComment
h su 7.8 8.5 9.0 8.7 8.1 8.9 8.5 8.5 8.1 6.0
Contluctiviry umhos/cm 70 189 280 80 166 260 200 190 60 70
Tem erasure Celsius 0.4 9.4 20.9 0.2 8.2 14.8 0.3 10.6 12.5 8.1
DO mg/L 0.0 3.3 14.0 0.0 9.3 12.0 11.5 9.3 9.5 9.2
'~~)~ i~ ~~ UNITS
Bicarbonate m /L 57 114 149 46 112 159 110 46
Carbonate m /L 0 0 4 <MDL 2 2 2 <MDL
Chloritle mg/L <MDL 1 2 <MDL 2 2 2 <MDL
Conductivity umhos/cm 114 220 298 99 222 277 236 99
Hardness mg/L 51 88 119 43 89 109 93 43
Nitrate-Nitrite m L <MDL 0.03 0.17 <MDL 0.08 0.14 0.05 0.14
Oil and Grease mg/L <MDL 8 8 <MDL 3 3 <MDL <MDL
pH su 7.0 7.8 8.2 7.8 8.0 8.4 8.4 8.1
Phosphate mg/L <MDL 0.7 7.8 <MDL 0.04 0.06 0.06 <MDL
ResidueFilte2ble-TDS m /L 100 145 190 7D 143 180 160 70
ResidueNonFiltereble-TSS m /L <MDL 11 48 <MDL 12 18 <MDL 18
SAR <MDL 0.43 0.85 0.28 0.66 0.87 0.70 0.26
Sulfate mglL <MOL 6 20 <MDL 23 50 <MDL <MDL
Aluminum mg/L <MDL 0.48 2.25 <MDL 0.30 1.17 0.10 1.17
Arsenic mg/L <MDL 0.0001 0.0010 <MDL 0.0005 0.0006 <MDL 0.0006
Catlmium mg/L <MDL <MDL <MDL <MDL <MDL <MDL <MDL <MDL
Calcium mg/L 14.2 25.2 31.8 12.2 25.3 30.0 28.4 12.2
Cop er mg/L <MDL <MDL <MDL <MDL <MDL <MDL <MDL <MDL
Iron (Total) mg/L 0.08 0.63 1.65 0.06 0.41 1.05 0.28 1.05
Leatl mg/L <MDL <MDL <MDL <MDL 0.0002 0.0003 0.0001 0.0003
Ma nesium mg/L 3.7 8.3 7.8 3.0 8.1 7.2 6.5 3.0
Manganese (Total) mg/L 0.005 0.017 0.035 0.007 0.016 0.037 0.016 0.037
Merwry mg/L <MDL <MDL <MDL <MDL 0.0002 0.0002 <MDL 0.0002
Molyebdenum mg/L <MDL <MDL <MDL <MDL <MDL <MDL <MDL <MDL
Selenium mg/L <MDL <MDL <MDL <MDL 0.0001 0.0001 <MDL <MDL
Sodium m 2 4.7 13.8 21.1 4.0 15.4 23.5 15.5 4.0
Zinc mg/L <MDL 0.01 0.04 <MDL 0.01 0.01 <MDL <MDL
The Upper Hubbard Creek monitoring point is located at a large culvert located at the mine entrance of the Blue Ribbon Mine.
Flow calculated by adtling DTD upper and Hub law.
WA =Not Available
Baseline Information for Point Hub-up is derived from events beginning on 9/30/96 through 4/1/02.
Point influenced by mining on 4/1/02.
Figure No. 117