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
Surface Water
9/30/7996 to 6!23/1999 6/23/1999 to Present
Elev. 5860 eaeetlnn n..e.~rn..~t
Hub-low Hubbard Creek -Drainage System
0426/00 ofV20/00 09129/00 77/18/00 Mln Max Avg Min Max Avg
Flow Rate (CFS) 1s1.4 s.e 1.] z.s o.o es.s ls.e 1.] lsl.a z].s
Water level
pH (Standard Units) e.l a.s a.a e.l a.o 9.3 e.s e.l 9.c e.4
Conductivity (umhos/nm) loo 310 ]zo zso eo 390 196 loo ]zo 36]
Temperature (C) 9.a 19.] lo.s 1.3 z.3 20.0 lo.z 1.3 19.] 11.1
Wet Chemistry MDL
Alkalinity as CaCO (mg4) lso 690 62 lss us 160 690 3n
Bicarbonate as CaCO (mg4) z 160 690 sz lss 11s 160 690 Js]
Carbonate as CaCO (mg4) z <6roL <rmL <r~vL <rmL <NmL <MDL <rvL <rvL
Hydroxide as CaCO (rngll) 2 <40 <CIDL <tAOL <16bL <nOL <qOL <I~L <MDL
Chloride (mg4) 1 z a <t-roL 3 z a 4 3
Conductivity (umhos/cm) 1 741 31B 119 906 254 31e 549 103
NiUa[e (mg/I) 0.02 0.01 1.62 <t~L 0.29 0.05 <t~L 1.62 0.55
Nitrate/Nitrite as N, dis. (mg4) o.oz o. oa 1.62 <nmL o.z9 o. os <r~vL 1.6z o.ss
Nitrite as N, dissolved (mg4) o.ol <7~L <t4DL <MtDL 0.01 0.00 <ymL <TIDL <MCL
pH (Lab Units) o.l ].9 ].e ].s e.l ].9 ].e e.l ].9
Hardness (mg4) 1 1+] 9s a9 13e 9s 9s zsl 169
Phosphate (mg4) 0.07 <PA3L <h10L ct~L 0.07 0.00 <t4nL <t~L <lII1L
Phosphorous, ortho dis. (mg/I) o. oos <61DL o.oo] <~L o. ol0 0.004 <nroL o.oo] o.ooz
TDS @180 C (mg11) 10 200 210 100 260 165 200 190 250
T$S (mg/I) S <t~L 6 <l1DL 170 30 <t~L 6 2
SAR 0.03 O.al 1.02 ct~mL 1.04 0.54 <I~L 1.02 0.62
Sulfate (mg4) 10 l0 90 <61DL 50 la 70 ]0 4]
Metals
Aluminum, total rec. (mg/I) 0.03 <r-roL o.ll o.os 1.91 0.64 cPIDL o.ll o.q4
Arsenic, total recoverable (mgll) o.ool <r~m <rmL <rroL o.ool 0.000 <~L <rroL <nvL
Cadmium, total recoverable (mgll) o. ool <t4oL <t~L <f+0)L <t~t <ymL <ymt <kmt <hmL
Calcium total recoverable (mg/I) o.z 37.0 J9.1 13.e 36.'1 zs.o 33.0 59.s 4J.9
Copper, total recoverable (mgll) 0.2 <tADL cFIDL cymL 0.01 0.00 <t~mL <r~IDL <I+mL
Iron, total recoverable (mgll) 0.01 0.0] 0.22 0.09 1.94 0.59 0.0] 0.22 0.1J
Lead, total recoverable (mg4) 0.04 <lfOL <IaDL <t4DL <FIDL <t~L <MOL <h1DL ct~IDL
Magnesium,lotal rec. (mg/l) 0.2 ~ lz.a 10.] 3.6 11.z ].4 10.] z1.n 10.9
Manganese, total rec. (mg/I) o.z o.ooe o.oll 0.009 o.o3a o.ol] o. ooa o.o1a 0.012
Mercury, total rec. (mg/I) 0.0002 ct4DL <I~L <DIDL ct4DL ct9oL cFIDL <6mL cFff)L
Molybdenum, total rec. (mg4) 0.01 <P10L <r~L <t40L <t40L cMmL <r~mL <DIDL <!IDL
Selenium, dissolved (mg4) 0.001 <NOJL <MmL cPIDL 0.010 0.002 <.NOL <I~mL <FIDL
Sodium, tlissolved (mg/q 0. ] 20. ] 30.5 5.3 27.6 16.1 20.'1 30.5 16.9
Zinc, dissolved (mg4) 0.01 <61DL <t4DL ct~L 0.04 0.01 <FIDL <MDL <MDL
Organic Analysis
Oil and Grease. total rec. (mg/1) <PIDL <t~L <o-mL 3 1 <rmL <r~roL <FIDL

Required by current permit.
Baseline Information for Point Hub-low is denved Irom events beginning on 9/30/1996 through fi/23/1999, a period of -33 months. Point influenced by mining on 623/1999.
• The Lower Hubbartl Creek monitoring point is located at a mncreta boz culvert under the Union Pacific reilroad treck just above the North Fork of the Gunnison. Flows are
calculated by subtracting the Deer-up Point Irom the Hub-up point. The minimal Bows divene0 into the Mayes ditch are disregarded.
MDL =Method Determination Limit BLANK =Not Tested Monitoring Point Table 81