REP41255

• Permit No: C1996083
• IBM Index Class Name: REPORT
• Doc Date: 4/18/2007
• Doc Name: 2006 AHR Part 2
• From: J.E. Stover & Associates Inc
• To: DRMS
• Annual Report Year: 2006
• Permit Index Doc Type: Hydrology Report
• Media Type: D
• Archive: No

Bowie Resources, LLC
Bowie No. 2 Mine
2006 Annual Hytlrology Report
Deer-up
Canal -Deer Trail D'RCh
Elevation - 6960
Surface Water
Initiated &14/1995 8/14/1995 6/14/1995 6/14/1995 6/14/1995
Activated 3/30/1997 330/1997 330/1997 3/30/1997 3/30/1997
Date 1126/2006 9/14/2008 8/222006 6/14/2006 329/2006
Summary Information
I•
Baseline Operation
UNITS Min Ave Max Min Ave Max
Flow CFS 0.8 2.4 8.0 0.2 1.8 4.8 1.86 2.32 1.79 2.40 7.24
Water Level in Flume Feet 0.23 044 1.00 0.08 0.37 0.72 0.39 0 45 0.38 0.46 0.3
FieldCOmment
ph su 6.4 8.5 9.1 7.4 8.4 9.1 8.4 8.8 8.5 8.5 8.3
Conductivity umhos/cm 70 288 888 60 187 320 170 200 220 230 710
Temperature Celsius 0.8 714 20.3 0.2 10.3 20.7 3.7 16.4 15.0 14.1 7.0
DO m 0.0 3.5 7.7 0.0 8.6 11.7 10.2 9.1 8.7 8.7 9
UNITS
Bicartonale mg/L 57 73 117 46 174 144 98.96 135.7
Chloride mg/L <MDL 2 3 <MDL 2 5 <MDL <MDL <MDL
Chromium III Cdll mg/L <MDL <MDL <MDL <MDL
Chromium VI CrIV mg/L <MDL 0.01 0.01 <MDL
Cyanide, Total mg/L <MDL <MDL <MDL <MDL
Conductivity umhos/cm 700 148 235 100 222 322 192 182
Hardness mg/L 42 61 94 <MDL 89 127 78.05 8826 85
Nitrate-Nitrite mg/L <MDL 0.02 0.07 <MDL 0.20 1.25 <MDL
Nitrate mg/L <MDL 0.02 0.07 <MOL 0.2 t.3 <MDL <MDL
Nitrite m /L <MDL 0.01 0.02 <MDL <MDL <MDL 0.016 <MDL
Ammonia mg/L <MDL <MDL <MDL 0.102
Oil and Grease m L <MDL <MDL <MDL <MDL 3 3 <MDL <MDL
pH su 7.6 7.6 6.1 6.4 8.0 8.6 7.9 7.8 8.1
Phosphate mg/L <MDL 0.01 0.03 <MDL 0.07 0.06 <MDL <MDL
ResidueFilterable-TDS mg/L 50 100 750 60 157 298 274 298 133
ResidueNonFilterable-TSS mg/L <MDL 25 52 <MDL 12 40 30 <MDL
SAR 0.24 0.37 0.62 <MDL 0.57 1.04 0.44 7.03
Sulfate mg/L <MDL 10 20 <MDL 11 30 7.82 7 17.7
SUIfdeS mg/L <MDL 0.13 0.13 <MDL
Aluminum m L 0.24 1.09 1.77 <MDL 0.40 2.03 0.24 <MDL
Arsenic mg/L <MDL 0.0003 0.0070 <MDL 0.0012 0.0080 0.006 0.00098 D.008
Boron mg/L <MDL 0.36 0.70 0.700
Cadmium mg/L <MDL <MDL <MDL <MDL 0.00 0.01 <MDL 0.01 0.01
Caldum mg/L 71.8 17.2 26.5 12.4 26.1 35.5 20.8 22.3 23.58
Copper mg/L <MDL <MDL <MDL <MDL 0.007 0.010 0.006 0.07 0.002
Iron (Dissolvetl) nglL 0.00 0.00 0.00 0.0 0.0 0.3 0.25 0.12
Iron (Total) mg/L 0.38 7.79 t.65 0.03 0.49 1.93 0.18 0.03
Lead mg/L <MDL <MDL <MDL <MDL 0.0049 0.0500 0.02 0.02 0.01
Magnesium mg/L 3.0 4.4 6.7 2.9 6.7 9.2 6.3 7.9 64
Manganese (Dissolvetl) mg/L 0.0 0.0 0.0 0.0 1.0 6.7 0.072
Man anew (Totap mg/L 0.02 0.03 0.03 0.009 0.019 0.041 0.021 0.02 0.01
Mercury mg/L <MDL 0.0001 0.0002 <MDL 0.0001 0.11004 0.00017 <MDL 0.00024
Molyebdenum mg/L <MDL <MDL <MDL <MDL <MDL <MDL <MDL <MDL
Nickel mg/L <MDL <MDL <MDL <MDL
Selenium mg/L <MDL <MDL <MDL <MDL 0.0015 0.0170 0.003 0.00089 0.017
Silver mg/L <MDL <MDL <MDL <MDL
Sodium (Total) m /L 3.6 7.1 13.8 3.8 15.3 30.0 9.0 21.9
Zinc mg/L 0.01 0.02 0.03 <MDL 0.01 0.03 <MDL 0.006 <MDL
The upperend of Deer Trail Ditch is monitored at the headgate located on Hubbard Creek. This monitoring point is fitted with e
2' Pershall Flume.
Baseline Information for Point Deer-up is tledvetl hom events beginning on 6114/BS through 3130/97.
Point influencetl q' mining on 3/30/97.
Figure No. 107