REP32783

• Permit No: C1996083
• IBM Index Class Name: Report
• Doc Date: 12/11/2001
• Doc Name: 2000 ANNUAL HYDROLOGY REPORT PART 3 B OF 4
• Annual Report Year: 2000
• Permit Index Doc Type: Hydrology Report
• Media Type: D
• Archive: No

Bowie Resources Limited
Bowie No. 2 Mine
2000 Annual Hydrology Report
•
NFG-low North Fork- Drainage System
Surface Water
913011996 to 3/31/1997 3/31!1997 to Present
Elev. 5680 Baseline Operational
OM2610o 06120100 09129/00 11119100 Min Maz Avg Min Max Avg
Flow Rate (CFS) 0.0 396.0 101.0 :55.0 99.0 166.0 132.5 0.0 2]90.2 64].6
Water level
pH (Standard Units) 6.9 9.9 8.3 7.9 8.9 8.] 9.6 ].9 B.6 8.3
Conductivity (umhos/cm) 130 90 190 270 190 200 190 60 2B0 170
Temperetufe (D) 989]36.9 18.9 12.3 1.5 9.0 19.6 9.J 1.5 89776. 32726.1
Wet Chemistry MDL
Alkalinity as CaCO (mg/l) s9 120 9s 1os loo 9s lz3 86
Bicarbonate as CaCO (mg/I) 2 59 120 95 105 100 45 12] B6
Carbonate as CaCO (mgn) 2 <D1DL <PIDL <t9DL <PIDL <PIDL <PIDL <hIDL <f~L
Hydroxide as CaCO (mgll) 2 <f~L <FIDL <NDL <f9DL <r-mL <nDL <NDL <t~mL
Chloride (mg/I) 1 1 l 2 7 3 <!IDL l 1
Conductivity (umhos/cm) 1 lz7 z3] 201 z97 222 lot Ise 1]B
Nitrate (mg/I) 0.02 0.21 0.98 <P1DL 0.16 0.08 <t9DL 0.98 0.15
NitreteMitrite as N, dis. (mgA) 0.02 0.21 o.9e <FIDL o.16 o.oe <l1DL o.9e o.1s
Nitrite as N, dissolved (mgll) o. of <nroL <nmL <r1DL <t~mL <rmL <o-roL o. of o. 00
pH (Lab Units) o.l ].3 ].6 e.o B.o B.o ].o e.l ].s
Hardness (mg/I) 1 55 103 B4 BS 85 <f9DL lOJ 69
Phosphate (mgll) 0.07 <qpL <NDL <I9DL cNDL <JIDL <FIDL 0.05 0.01
Phosphorous, ortho dis. (mg/I) o.oos <nroL <sroL <nroL o.006 0.003 <rmL o.zoo o.oz]
TDS @160 C (mg/I) 10 70 160 130 150 190 60 160 110
TSS (mg/I) 5 <r1DL <t-mL <I+mL 6 3 <P1DL 52 9
$AR 0.03 0.3B 0.96 0.55 0.66 0.61 <t9DL 0.88 0.30
Sulfate (myl) 30 10 l0 10 20 15 <I9DL ]0 13
Metals
Aluminum, total rec. (mg/I) 0.03 0.0] 0.09 0.10 o.zl o.s o.os :.29 0.96
Arsenic, total recovereble (mg/I) 0.001 <DIDL <t9DL <t9oL o.ool o.ool <D1DL <61oL <rvL
Cadmium, total recoverable (mg/I) o. ooJ <t9oL <nDL <NDL <rroL <~mL <r~L <rmL <nmL
Calcium total recoverable (mg/I) o.z la.e 39.] z+.s 2s.o 29.a 9.] 3+.] zo.s
Copper, total recoverable (mg/I) o.z <PIDL <I•IDL <nroL <[~IDL <t9DL <DIDL <NOL <nroL
Iron, total recoverable (mg/I) o.ol o.ll 0.19 0.19 o.z] o.zl o.o] 1.9e o.93
Lead, total recoverable (mg/I) 0.09 <rIDL <I9oL <nmL o.02 o,ol <nDL o.ps o.01
Magnesium, total rec. (mgn) 0.2 3.3 ].] s.J s.] s.s 2.0 ].] 9.9
Manganese, total rec. (mgA) 0.2 0.01] 0.019 0.021 o.lso 0.090 0.019 0.031 0.019
Mercury, total rec. (mgll) 0.0002 <f9DL <P1oL <I9DL <t~IDL <I+83L <PtOL <NmL <DIDL
Molybdenum, total rec. (mgll) 0.01 <I9oL <[90L <D1DL <f4DL <I+DL <hmL <MDL <FIDL
Selenium, dissolved (mgll) 0.001 <I9oL <PfOL <DIDL <f90L <p0)L <f~L <MDL <P1DL
Sodium, dissolved (mg/I) 0.3 5.9 22.9 11.5 12.9 12.2 3.0 22.4 11.5
Zinc, dissolved (mg/I) 0.01 clfOL <t~L 0.02 O.OI 0.02 <P1DL 0.02 0.01
Organic Analysis
Oil and Grease, total rec. (mg/I) z <JmL <rroL <nroL <rvL <DIDL <PIDL <t-~L <o-mL
CJ
Required by cumenf permit.
Baseline Information tar Point NFG-low is derived hom events beginning on 9/30/1996 through 3/31/1997, a period of-6 months. Point influenced by mining on 3/37/7997.
• Field Parameters, except flow, for the Lower North Fork of the Gunnison River are taken on the river approximately 1,500' below Ne confluence of Tenor Creek and the
North Fork 01 the Gunnison. Flow data /or the North Fork of the Gunnison river is obtained Irom the USGS hom a websile . This flow reading is obtained telemetrically from
a station near Somerset, CO and is reflective of upper sheam (lows any.
MDL =Method Determination Limit BLANK = No[ Tested Monitoring Point Table 83