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Bowie Resources Limited <br />Bowie No. 2 Mine <br />2000 Annual Hydrology Report <br />• <br />`/ ~J <br />h J <br />NFG-u North Fork • Drainage System <br />Surface Water <br />9!30/1996 to 7!91/1997 3/31/1997 tc Present <br />Elev. 5880 Baseline Operational <br /> 04!16/00 0620100 09(29100 12/t9(00 M{n Max Avg Min Max Avg <br />Flow Rate (CFS) 1080.1 796.0 101.0 155.0 99.0 166.0 1]2.5 62.9 2790.2 '!19.6 <br />Water level <br />pH (Standard Units) B.1 e.9 e.6 7.s e.7 a.e e.e 7.s a.6 e.J <br />Conductivity (umhos/art) 130 90 1]0 210 160 1B0 170 60 260 161 <br />Temperature (C) 10.5 19.9 10.7 1.9 J.6 13.1 B.6 1.4 19.5 10.6 <br />Wet Chemistry MDL <br />Alkalinity as CaCO (mg/I) s9 137 se 98 93 bJ 137 Bl <br />Bicarbonate as CaCO (mgA) z s9 173 BB 9e 93 93 1JJ el <br />Carbonate as CaCO (mgA) z <ntoL <rvL <r~roL <tnDL <FII)L <rtoL <ttoL <rloL <br />Hydroxide as CaCO (mg4) 2 <NO)L <f1DL <!IDL cPIDL <!IDL cDIDL <IdDL <6mL <br />Chloride (mg/I) 1 1 ] 2 3 3 <!IDL 7 1 <br />Conductivity (umhos/cm) 1 126 273 1B6 225 205 7 270 lJ6 <br />Nitrate (mgA) 0.02 0.06 3.97 (llOL 0.09 0.09 <!IDL 7.9] 0.99 <br />Nilrate/NiUite as N, dis. (mgll) o. oz o.os 3.97 <r1pL o.09 0.05 <r4oL 7.47 0.99 <br />Nitrite as N, dissolved (mg/I) 0.01 <f4DL cDIDL CMDL <PIDL <I9DL <t40L 0.01 0.00 <br />pH (Lab Units) 0.1 7.J 7.4 7.9 e.o a.o 7.z a.l 7.4 <br />Hardness (mg/I) 1 59 B6 79 79 77 38 97 64 <br />Phosphate (mg/I) 0.03 <!IDL <t~L <DIDL <MD1L <I4DL <DIDL 0.09 0.01 <br />Phosphorous, ortho dis. (mgll) 0.009 cM03L <61DL [FIDE 0.008 0.009 ct4DL 0.015 0.009 <br />TDS @180 C (mg/1) 10 60 190 120 190 130 60 160 105 <br />TSS (mg/I) 9 <t~L 6 10 12 11 <IIOL 119 17 <br />SAR O.OJ O.IB 0.92 0.92 0.78 0.60 <NmL 0.92 0.21 <br />Sulfate (mg/I) 30 <PII)L 20 30 20 15 <I9DL 30 11 <br />Metals <br />Aluminum, total rec. (mg/I) 0.03 0.09 o.z9 o. oe o.z7 o.1a o.09 z.7e o.ls <br />Arsenic, total recoverable (mgll) 0.001 <rroL <PIDL <rvL <~L <t4DL <NOL 0.001 o.0co <br />Cadmium, total recoverable (mgll) o.ooJ <IroL <rroL cDII)L <nmL <PII)L <tmL «toL <rmL <br />Calcium total recoverable (mgA) o.z 14.s Jo.] z1.9 zb.o zz.9 11.1 30.3 le.e <br />Copper, total recoverable (mg/I) 0.3 <rvL <amL <PIDL <6mL <NOL <nroL <ntoL <,<IDL <br />Iron, total recoverable (mg/I) o.ol o.ll o.JJ o.09 0.09 0.09 0.11 z.9o 0.70 <br />Lead, total recovereble (mgll) 0.04 <ND)L ct~L <I4pL <I4DL <I4DL <f~L <DIDL <FIDL <br />Magnesium, total rec. (mgA) 0.3 ~ 7. J 6.0 4.7 4.7 9.7 2.1 6.1 9.2 <br />Manganese, total rec. (mgA) c.z 0. oz1 o.ole o.oll 0.019 o.ols 0.010 0.061 o.oz3 <br />Mercury, total rec. (mg/I) 0.0002 <PIDL <I+0)L [t4pL <MD)L <t4DL <DIDL <l~IDL <FIDL <br />Molybdenum, total rec. (mgll) 0.01 <t~L <t+0)L [PIIIL <MO]L <t9DL <MO]L <NDL <M1mL <br />Selenium, dissolved (mgA) 0.001 <hmL <4IDL <t~L <t~mL <FIDL <I9DL <f+mL <Mp)L <br />Sodium, dissolved (mg/I) 0.3 5.9 31.5 8.6 16.7 12.0 3.] 36.0 11.6 <br />Zinc, dissolved (mgll) 0.01 <t9DL <PIDL 0.02 O.OI 0.02 <r~mL 0.03 D.Ol <br />Organic Analysis <br />Oil and Grease, total rec. (mg/I) 2 <nroL <n1oL <MmL <rvL <rroL <!IDL <6roL <nvL <br />Required by cumenr permit. <br />Baseline Inlormation for Point NFG-up is derived from events beginning on 9/30/1996 Umugh 3131/1997, a periotl of -6 months. Point inauenced by mining on 3/31/1997. <br />• Fieltl Parameters. except flow. !or Ne UPPer North Fork of the Gunnison River monitoring point are taken on the over just above its confluence with Hubbard Creek. flow <br />data !or the Nonh Fork o/ the Gunnison river is obtained hom the USGS fmm a wehsite http:/Avww.nwiscalo.cr.usgs.govRiistoric.html. This flow reading is obtained <br />telemetncally Irom a station near Somerset, CO and is reflective of upper stream (lows Dory. <br />MDL =Method Determination Limit BLANK =Not Tested Monitoring Point Table 84 <br />