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 SurTace Water
Bowie No. 2 Mine
• 2006 Annual Hytlrology Report NFG-up
North Fork -Drainage System
Elevation - 6880
Initialed 930/1996 9/3x1996 9/3x1996 930/7998 93x1996
Activated 331/1997 3/31/1997 331/7997 337/7997 331/1997
Date 12212005 926/2005 8/172005 826/2005 3/192005
Summary Information
•
•
s~`
~? '
~ '~
~"= Baseline Operation
UNITS Min Ave Max Min Ave Max
Flow CFS 99 292 610 53 478 2390 WA 202 249 1350 298
FieltlComment Ice
ph su 8.1 8.5 8.8 7.5 8.2 8.8 8.5 8.5 8.2 8.0 7.9
Conductivi umhos/cm 780 767 780 60 161 Z60 740 78D 130 BO 760
Tem erature Celsius 3.6 7.3 13.7 0.2 11.7 22.2 0.2 12.7 74.8 10.0 9.0
DO mgA. 0.0 7.5 17.7 11.5 8.6 8.5 10.1
;~ i i'
~~ ~ ~
UNITS
Bicarlwnate mg/L 88 93 96 43 84 135 80 43
CtJoride mg/L 2 3 3 <MDL 3 7 4 3 <MDL
Chromium 111 Crlll mg/L <MDL <MDL <MDL <MDL
Chromium VI CrIV mg/L <MDL 0.008 0.008 0.008
Cyanide, Total mg/L <MDL <MDL <MDL <MDL
Conductivity umhos/an 185 205 225 7 768 303 191 100
Hardness mg/L 74 77 79 38 70 101 68 72 42
Nitrate mg/L <MDL 0.05 0.09 <MDL 0.27 3.47 0.17 0.03 <MDL
Nitrite mg/L <MDL <MDL <MDL <MDL 0.002 0.070 <MDL 0.07 <MDL
Ammonia mg/L <MDL <MDL <MDL <MDL cMDL <MDL <MDL
Oil&Grease mg/L <MDL <MDL <MDL <MDL 7 17 <MDL <MDL
pH su 7.9 8.0 8.0 7.2 7.8 9.0 8.3 8.7 B
Phosphate mg/L <MDL <MDL <MDL <MDL 0.01 0.04 <MDL 0.03
ResitlueFilterable-TDS mgt 120 130 140 50 118 180 130 140 50
ResidueNonFilterable-TSS mglL 10 11 12 <MDL 74 114 <MDL 8
SAR 0.42 0.60 0.78 <MDL 0.58 2.17 0.72 0.25
Sulfate mglL 10 15 20 <MDL t6 30 <MDL <MDL <MDL
Sulfides mg/L <MDL 0.05 0.05 0.04
Aluminum mg/L 0.08 0.18 0.27 0.08 0.48 2.78 0.08 0.59
Arsenic m <MDL <MDL <MDL <MDL 0.0004 0.0010 <MDL <MDL <MDL
Boron mg/L 0.02 0.03 0.04 0.02
Cadmium mg/L <MDL <MDL <MDL <MOL <MDL <MDL <MDL <MDL <MDL
Caldum mg/L 21.9 22.9 24.0 71.1 20.7 30.3 20.6 21.7 12.7
Copper mg/L <MDL <MDL <MDL <MDL <MDL <MDL <MDL <MDL <MDL
Iron, Dissolved mg/L 0.02 0.03 0.05 0.05
Iron (Total) mg/L 0.09 0.09 0.09 0.07 0.41 2.90 0.07 0.34 0.5
Lead mg/L <MDL <MDL <MDL <MDL 0.0002 0.17009 0.0002 0.0003 0.0002
Magnesium mg/L 4.7 4.7 4.7 2.1 4.5 8.3 4 4.4 2.6
Manganese (Dissolved) mg/L <MDL <MDL <MDL <MDL 0.45 2.90 <MDL
Man anew (Total) mg/L 0.071 0.015 0.019 0.008 0.019 0.067 0.008 0.019 0.023
Merwry mg/L <MDL <MDL <MDL <MDL 0.0000 0.0002 <MDL <MDL 0.0002
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 <MDL <MDL <MDL <MDL <MDL
Silver mg/L <MDL <MDL <MDL <MDL
Sodium mg/L 8.6 12.0 75.3 3.3 14.6 41.2 13.6 3.7
Zinc rtg/L 0.02 0.02 0.03 <MDL 0.07 0.03 <MDL <MDL 0.02
Field parameters, except flow in the Upper North Fork o! the Gunnison River monitoring point are taken on the nverjust above its cnnfiuence with
Hubbard Creek. Flow data {or the North Fork o/the Gunnison river is obtained Irom USGS station #09132500.
Baseline Informafion for Point NFG-up is derived fmm events beginning on 9/30196 Nrough 3/31191.
Point influenced by mining an 3131/97.
Figure No. 121