REP49914

• Permit No: C1996083
• IBM Index Class Name: Report
• Doc Date: 2/23/2002
• Doc Name: 2002 Revised Annual Hydrology Report Part 2
• From: Bowie Resources
• To: DMG
• Annual Report Year: 2002
• Permit Index Doc Type: Hydrology Report
• Media Type: D
• Archive: No

•
Bowie Resources Limited
Bowie No. 2 Mine
2002 Annual Hydrology Report
Deer-low
Canal -Deer Trail Ditch
Elevation - 5920
Surtace Water
Initiated 6/14/1995 6/14/1995 6/14/1995 6/14/1995
Activated 3/30/1997 3/30/1997 3/30/1997 3/30/1997
Date 11/22/2002 9/25/2002 6/24/2002 4/30/2002

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Summary Information
~~eil ~ _"~~~'~
ratne,e.,, - Baseline Operation
UNITS Min Ave Max Min Ave Max
Flow GPM 0 8 32 0 9 73 0 0 72 0
FieldComment D D D
ph su 6.8 8.3 9.0 8.1 8.6 9.2 8.7
Conductivi umhos/cm 80 276 638 80 177 260 260
Temperature Celsius 4.9 13.1 21.2 3.1 12.6 21.5 21.5
DO mg/L 0.0 3.7 10.7 0.0 4.5 9.3 0 0 7.80000019 0
aramele:
t£ ~ UNITS
Bicarbonate m /L 41 70 118 62 108 127 114
Chloride mg/L <MDL 1 2 cMDL 2 4 4
Conductivity umhos/cm 97 148 238 112 230 308 308
Hardness m /L 48 67 96 46 89 111 111
Nitrate-Nitrite mg/L <MDL 0.07 0.17 <MDL 0.01 0.04 0.04
Oil and Grease mg/L <MDL <MDL <MDL <MDL <MDL <MDL <MDL
pH su 7.5 7.8 8.0 7.7 8.0 8.6 8.6
Phosphate mg/L <MDL 0.03 0.08 <MDL 0.02 0.08 <MDL
ResidueFillerable-TDS m /L 30 93 150 80 144 180 180
ResidueNonFilterable-TS m /L 6 101 286 <MDL 8 18 12
SAR 0.21 0.38 0.68 <MDL 0.41 1.13 1.13
Sulfate mg/L <MDL 7 10 <MDL 10 20 20
Aluminum mg/L 0.25 3.03 7.68 0.18 0.54 1.32 0.44
Arsenic m /L <MDL 0.001 0.002 <MDL 0.0003 0.0010 <MDL
Cadmium mg/L <MDL 0.001 0.003 <MDL <MDL <MDL <MDL
Calcium mg/L 13.4 18.8 26.9 13.0 24.6 30.9 30.9
Copper m /L <MDL <MDL <MDL <MDL <MDL <MDL <MDL
Iron (Total) m /L 0.45 3.83 9.79 D.26 0.54 0.79 0.62
Lead m /L <MDL cMDL <MDL <MDL 0.0002 0.0010 0.001
Magnesium mg/L 3.4 4.9 6.9 3.2 6.4 8.6 8.6
Manganese (Total) m /L 0.012 0.075 0.193 0.010 0.017 0.033 0.033
Mercury m /L <MDL 0.0001 0.0002 <MDL <MDL <MDL cMDL
Mol ebdenum mg/L <MDL <MDL <MDL <MDL <MDL <MDL <MDL
Selenium m /L <MDL <MDL <MDL <MDL 0.001 0.002 <MDL
Sodium mg/L 3.7 7.6 15.3 4.5 t5.3 31.5 31.5
Zinc m /L 0.03 0.03 0.04 <MDL 0.01 0.02 0.01
The lower end of Deer Trail Ditch is monitored at a point where the ditch empties into the Fire Mountain Canal.
Baseline Information for Point Deer-low is derived from events beginning on 6/14/95 through 3/30/97.
Point influenced by mining on 3130/97.
Monitoring Point Table 73
Revised 03/04