2011-04-18_REPORT - C1996083 ‎(5)‎

• Permit No: C1996083
• IBM Index Class Name: Report
• Doc Date: 4/18/2011
• Doc Name: 2010 AHR Part 2
• From: J.E. Stover & Associates, Inc
• To: DRMS
• Annual Report Year: 2010
• Permit Index Doc Type: Hydrology Report
• Email Name: JJD
• Email Name: SB1
• Media Type: D
• Archive: No

Bowie Resources, LLC
Bowie No. 2 Mine
2010 Annual Hydrology Report
D24
Sheep Corral - Drainage System
Elevation - 6360
Surface Water
Initiated 10/31/1997 10/31/1997 10/31/1997 10/31/1997
Activated 4/1/2002 4/1/2002 4/1/2002 4/1/2002
Date 11/2012010 1 9/28/2010 712/2010 614/2010
Summary Information
Baseline Operation
UNITS Min Ave Max Min Ave Max
Flow GPM 0.00 0.32 4.55 0.00 0.82 13.60 0 0 0 0
FieldComment Dry Dry Dry Dry
ph A 7.1 7.8 8.4 7.4 8.1 8.6
Conductivity 940 1210 1640 1140 1499 2000
Temperature 4.1 11.1 19.4 5.0 16.8 25.4
UNITS
Bicarbonate mg/L 540 540 540 398.95 593.87 772.59
Chloride mg/L 11 11 11 <MDL 15.41 20.81
Conductivity umhos/cm 1230 1230 1230 1173.0 1508.7 1847.3
Hardness mg/L 291 291 291 228.45 325.43 372.55
Nitrate-Nitrite mg/L <MDL <MDL <MDL <MDL 1.866 2.730
Oil and Grease mg/L <MDL <MDL <MDL <MDL 2.060 4.050
pH su 8.2 8.2 8.2 7.8 8.4 8.9
Phosphate mg/L <MDL <MDL <MDL <MDL <MDL <MDL
ResidueFilterable-TDS mg/L 790 790 790 824 1060 1321
ResidueNonFilterable-TSS mg/L <MDL <MDL <MDL 1.0 64.9 296.0
SAR 5.3 5.3 5.3 1.34 5.08 11.30
Sulfate mg/L 190 190, 190 230.00 275.24 380.32
Aluminum mg/L 0.39 0.39 0.39 0.057 0.377 1.23
Arsenic mg/L <MDL <MDL <MDL 0.0017 0.054 0.142
Cadmium mg/L <MDL <MDL <MDL <MDL 0.006 0.015
Calcium mg/L 49.8 49.8 49.8 36.9 55.3 66.6
Copper mg/L <MDL <MDL <MDL <MDL 0.284 0.552
Iron (Total) mg/L 0.3 0.3 0.3 0.10 0.49 1.22
Lead mg/L <MDL <MDL <MDL <MDL 0.03 0.05
Magnesium mg/L 40.6 40.6 40.6 33.1 45.5 57.3
Manganese (Total) mg/L 0.01 0.01 0.01 <MDL 0.053 0.084
Mercury mg/L <MDL <MDL <MDL <MDL 0.0001 0.0002
Molyebdenum mg/L <MDL <MDL <MDL <MDL 0.003 0.003
Selenium mg/L <MDL <MDL <MDL 0.0002 0.0492 0.1680
Sodium mg/L 205 205 205 54.8 200.8 393.8
Zinc mg/L <MDL <MDL <MDL <MDL 0.032 0.090
The D24 Monitoring point is at the lower extreme of Sheep Corral Gulch. It is located just below the Hubbard Creek Road,
just north of the Blue Ribbon Mine.
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C7
Baseline Information for Point 132-1 is derived from events beginning on 10131/97 through 4/1/02.
Point influenced by mining on 4/1/02.
Figure No. 91