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 Surtace Water
Bowie No. 2 Mine
2002 Annual Hydrology Report HUB-low
Hubbard Creek -Drainage System
Elevation - 5880
Initiated 9/30/1996 9/30/1996 9/30/1996 9/30/1996
Activated 6/23/1999 6/23/1999 6/23/1999 6/23/1999
Date 11/22/2002 9/24/2002 6/24/2002 4/30/2002
Summary Information

•
~'ed
[ rne, Baseline Operation
UNITS Min Ave Max Min Ave Max
Flow CFS 2.90 19.67 85.51 0.06 13.39 151.41 0.98 0.06 0.06 12.00
Field Comment
ph su 8.0 8.5 9.3 7.1 8.2 9.0 7.1 8.1 8.1 7.9
Conductivity umhos/cm 80 198 390 100 403 850 420 850 560 140
Temperature Celsius 2.3 11.1 20.2 0.5 11.1 19.7 6.0 17.1 15.8 9.0
DO mg/L 6.4 8.2 10.0 0.0 4.2 11.4 0.0 9.3 9.0 10.6
.~@targeje, , , UNITS
Bicarbonate mg/L 62 115 155 140 268 690 185 209
Chloride mg/L <MDL 2 3 2 4 7 5 7
Conductivit umhos/cm 118 254 406 301 432 609 476 609
Hardness mg/L 49 96 138 95 169 251 152 250
Nitrate-Nitrite mg/L <MDL 0.05 0.29 <MDL 0.43 1.62 <MDL <MDL
Oil and Grease mg/L <MDL 3.0 3.0 <MDL 3.0 3.0 3 <MDL
pH su 7.5 7.9 8.3 7.8 8.0 8.1 7.8 8
Phosphate mg/L <MDL 0.004 0.030 <MDL 0.00 0.00 <MDL <MDL
ResidueFilterable-TDS m /L 100 163 260 200 267 380 270 380
ResidueNonFilterable-TS m 2 <MDL 33 170 <MDL 3 6 <MDL cMDL
SAR <MDL 0.47 1.04 cMDL 0.87 1.18 1.18 1.17
Sulfate mg/L <MDL 17 50 30 58 100 70 100
Aluminum mg/L 0.05 0.58 1.91 <MDL 0.10 0.41 0.05 0.03
Arsenic mg/L <MDL 0.0004 0.0010 <MDL 0.0002 0.0010 <MDL 0.001
Cadmium mg/L <MDL <MDL <MDL <MDL <MDL <MDL <MDL <MDL
Calcium m /L 13.8 26.2 36.7 29.4 45.5 70.7 41.1 70.7
Copper mg/L <MDL 0.001 0.010 <MDL <MDL <MDL <MDL <MDL
Iron (Total) m /L 0.09 0.54 1.44 0.06 0.18 0.49 0.14 0.06
Lead m /L <MDL <MDL <MDL <MDL 0.0000 0.0000 <MDL <MDL
Magnesium m /L 3.6 7.4 11.2 8.4 14.5 21.8 12 21.8
Manganese (Total) mg/L 0.009 0.016 0.034 0.006 0.011 0.018 0.011 0.006
Mercu mg/L <MDL <MDL <MDL <MDL <MDL <MDL <MDL <MDL
Mol ebdenum mg/L cMDL cMDL <MDL <MDL <MDL <MDL cMDL <MDL
Selenium mg/L <MDL 0.001 0.010 <MDL <MDL <MDL <MDL <MDL
Sodium m /L 5.3 15.9 27.6 20.7 30.9 48.5 33 48.5
Zinc m /L <MDL 0.01 0.04 <MDL cMDL <MDL cMDL 0.01
The Lower Hubbard Creek monitoring point is located at a concrete box culvert under the Union Pacific railroad track just above the North
Fork of the Gunnison. Flow values are taken from the USGS in/ormation for station #09132960.
Baseline Information for Point Hub-low is dedvetl from events beginning on 9/30/96 through 6/23/99.
Poin[ influenced by mining on 6/23/99. Monitoring Point Table 81
Revised 03/04