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Bowie Resources Limited <br />Bowie No. 2 Mine <br />2001 Annual Hydrology Report <br />NFG-uo North Fork-Drainage System <br />Surface Water <br />9/30/1996 to 3/31/t997 3/31/1997 to Present <br />Efev. 5860 Baseline Operational <br /> Fie[d Parameters <br />.; ofi/tzrot 68/30ro1 09ro6ro1 0924101 Min Max Avg Min Max Avg <br /> Flow Rate (CFS) 1090.1 0.0 0.0 93.0 99.0 lss.o lus oo z39oz ~e.e <br /> W aier level <br /> pH (Standard Units) e.l s.s 6.6 6.7 ea e.e es zs a.7 ea <br /> Conductivity (umhos/cm) so 170 19D 190 160 !eo 130 6o z6o Ise <br /> Temperature (C) 9.s 1e.o le.s ls.z 3s u.7 es o.6 19s u.l <br /> ab Parameters <br />_..,,: <. <br />Wet Chemistry MDL <br /> Alkalinity as CaCO (mgA) ~ ~ w 93 In B0 <br /> Bicarbonate as CaCO (mg/I) 2 ee sa 93 93 v3 e4 <br /> Carbonate as CaCO (mg/p 2 <MDL eMDL MoL <MDL eMDL <MDL <br /> Hydroxide as CaCO (mgA) z eMDL eMDL MDL <MDL <MDL <MDL <br /> Chloride (mgA) 1 z z 3 3 eMDL + z <br /> Conductivity (umhos/cm) 1 >as zzs ms 7 zlo to <br /> Nitrate (mg/I) o. oz VNDL <NDL D.o9 D.DS <MM a+7 o.n <br /> Nitrate/Nitrite as N, dis. (mg/I) o. 02 G3DL MoL o.09 o.os MoL 3e7 0.+0 <br /> Nitdte as N, dissolved (mgA) o. of atnL <MDL <MDL <MDL eMDL o.Dl D.ao <br /> pH (Lab Units) 0.1 a.7 7s e.o e.o n a.7 z6 <br /> Hardness (mgA) 1 fis ~+ A n 3e 97 69 <br /> Phosphate (mg/I) 0.03 eMDL <MDL <MDL eMDL 0.09 0.01 <br /> Phosphorous, ortho dis. (mgA) o.DDS <MDL o.oae D.aa <MDL Doss o.m3 <br /> TDS X180 C (mg/I) l0 13o Izo 190 133 60 1W llz <br />• TSS (mgA) s to lx a MDL u+ Is <br /> SAR 003 0.4 O.A 0.60 :MDL 0.92 0.33 <br /> Sulfate (mgA) 10 20 30 20 IS <MDL 30 19 <br /> Metals <br /> Aluminum, total rec. (mgA) o. 03 o.oe oz7 o.3e o.09 z.3e 0.69 <br /> Arsenic, total recoverable (mg/p 0.001 Q1DL MDL <MDL <MDL eMDL 0.001 0.000 <br /> Cadmium, total recoverable (mg/I) 0.003 GMDL <MDL <MDl <MDL <MDL <MDL <MDL <br /> Calcium, total recoverable (mgA) 0.2 25.7 21.9 21.0 329 31.1 33.3 20.1 <br /> Copper, total recoverable (mg/l) 0.2 Q+DL cMpl <MDL <MDL eMDL MDL <Mpl <br /> Iron, total recoverable (mg/I) 0.01 o.ls a.o9 o.09 0.09 o.u z.9o os9 <br /> Lead, total recoverable (mg/I) o.o+ o. oo eMDL eMDL MDL cMDI o.oo D.Do <br /> Magnesium, total rec. (mg/I) 0.2 s.3 +.7 a.7 9.7 z.l 62 9s <br /> Manganese, total rec. (mgll) 0.2 0. Dls o.ou 0.019 o.ou o.o07 0.063 D.ozl <br /> Mercury, total rec. (mg/I) 0.0002 Q~1DL <MDL ' eMDL <MDL <MpL eMDL eMDL <br /> Molybdenum, total rep. (my/q 0.01 <MDL <MDL <MDl <MDl eMDL <MDL <br /> Selenium, dissolved (mg/I) 0.001 QdDL eMDL eMDL eMDL eMDI eMDL eMDL <br /> Sodium, dissolved (mg/I) 0.3 86 ]5.3 ]Z.0 3.3 26.0 121 <br /> Zinc, dissolved (mgA) 0.01 Q+DL 0.0z ~ 0.03 0.02 eMDL 0.03 0.01 <br /> Organic Analysis <br /> Oil and Grease, total rec. (mgA) 2 MDL ~ MDL eMDL eMDL MDL MoL <br />Required by current pemtit. <br />Baseline Information for Point NFG-up is derived from events beginning on 9/30/1996 through 3lat/1997, a period of -6 months. Pain[ in6uenced by mining on 3/3t/t997. <br />I Field Parameters, except Maw, for the Upper Nonh Fork of the Gunnison River monitoring point are taken on the nverjust above its con9uence with Hubbard Creek. Flow <br />• data Ipr the North Fork of the Gunnison river is obtained from tha USGS from a website htlpY/lw.w.nwis-colo.er.usgs.gov/historic.html. This flow reading is obtained <br />telemelrialty Irom a station near Somerset, CO and is re9ective of upper stream bows only. <br />MDL =Method Determination Limit BLANK =Not Tested Monitoring Point Table 84 <br />