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
Bowie No. 2 Mine
2006 Annual Hydrology Repoli
Deer-low
Canal " Daer Trail Ditch
Elevation - 6920
Surface Water
Initiated &14/1995 8/14/1995 6/14/1995 6/14/1995 6/74/1995
Activated 3/30/1997 3/30/1997 3/30/1997 3/30/1997 3/30/1997
Date 12212005 9262005 &172005 6272005 3/182005
Summary Infannalion
4 I

i }
et~xs ~ }
_.~'?° "e Baseline Operation
UNITS Min Ave Max Min Ave Max
Flow GPM 0 8 32 0 B 73 0.00 0.05 0.00 0.002 0.14
Waler Level in Flume Feet 0 0.09 0 0.01 0.17
FieldCOmment No Floc No Flax
ph su 8.8 8.3 9.0 8.1 8.5 9.2 8.4 8.3 8.4
Conductivi umhos/cm 80 276 638 70 174 260 180 70 780
Temperature Celsius 4.9 13.1 21.2 3.7 12.8 27.5 11.2 15.6 9.2
DO mg/L 0.0 3.7 10.7 0.0 4.8 9.3
;-g
e4s ~ ~ 'a
~ ,~~ '
~UNITS
Bicarbonate mg/L 41 70 118 43 100 127 43
Chloride mg/L <MDL t 2 <MDL 2 4 2
Conductivity umhos/cm 97 148 238 98 218 308 96
Hardness mg/L 48 67 96 43 BS 111 43
Nitrate-Nitrite mg/L <MDL 0.07 0.17 <MDL 0.01 0.04 <MDL
Oil and Grease mg/L <MDL <MDL <MDL <MDL 2 2 2
pH su 7.5 7.8 6.0 7.7 8.0 8.6 7.9
Phosphate mg/L <MDL 0.03 0.08 <MDL 0.03 0.06 0.06
ResidueFillerable-TDS mg/L 30 93 150 70 139 180 70
ResidueNOnFilterable-TSS mg/L 8 101 286 <MDL 12 30 12
SAR 0.21 0.38 0.88 <MDL 0.44 1.13 0.26
Sulfate mg/L <MDL 7 70 <MDL 12 20 <MDL
Aluminum mg/L 0.25 3.03 7.66 0.18 0.64 1.32 0.89
Arsenic m <MDL 0.001 0.002 <MDL 0.0004 0.0010 0.0006
Cadmium mg/L <MDL 0.001 0.003 <MDL <MDL <MDL <MDL
Callum mglL 13.4 18.6 26.9 12.2 23.8 31.1 12.2
Copper mg/L <MDL <MDL <MDL <MDL <MDL <MDL <MDL
Iron (TOtaO mg/L 0.45 3.83 9.79 0.26 066 1.01 0.9
Lead mg/L <MDL <MDL <MDL <MDL 0.0005 0.0018 0.0009
Magnesium mg/L 3.4 4.9 6.9 3.0 6.7 8.6 3
Manganese (TOtap rg/L 0.012 0.075 0.193 0.010 0.025 0.059 0.028
Mercury mg/L <MDL 0.0007 0.0002 <MDL <MDL <MDL <MDL
Mol ebdenum <MDL <MDL <MDL <MDL <MDL <MDL <MDL
Selenium rg/L <MOL <MDL <MDL <MDL 0.001 0.002 <MDL
Sodium mglL 3.7 7.6 15.3 3.9 14.2 31.5 3.9
Zinc mg/L 0.03 0.03 0.04 <MDL 0.01 0.02 0.02
'New 8" Parshall Flume installed on 3/1BPo5
The lowerend of Deer Trail D/tch is monitored at a paM where the ditch empties inb the Fire Mountain Cenel.
Baseline Information for Point Deer-low is derived from events beginning on 8/14/95 Nrou9h 3130/97.
Poinl influencetl b/ mining on 3/30/97.
Figure No. 104