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Bowie Resources Limited <br />Bowie No. 2 Mine <br />• 2000 Annual Hydrology Report <br />AW-3 Alluvial Well <br /> <br />Depth - 150' Pipe 1.16' Above Ground Top of Pipe FJevation - 5962.96' <br />Ground Water <br />11/23/1996 to 3!27!199 327/1997 to Present <br />Baseline Operational <br /> 07106100 ofiI20100 09129100 72/0&00 Mln Max Avg Min Max Avg <br />Water Elevation (Feet) se77 5892 seal s9]e se]o.l s9]z.7 se]l.a se71.4 sesz.l sa7e.s <br />Depth to Water (Feet) es.7 eo.9 9z.4 94.9 90.2 92.9 91.6 eo.e 91.s ea.q <br />pH (Standard Units) ].2 ].3 ].1 ].2 ].1 ].1 ].1 6.9 7.a 7.z <br />Conductivity (umhoslcm) 2600 2'100 2800 2900 3600.0 3600.0 3600.0 2400.0 J900.0 2'!00.0 <br />Temperature (C) 11.9 14.3 14.6 13.2 11.2 11.2 11.2 11.9 15.9 13.9 <br />Wet Chemistry MDL <br />Alkalinity as CaCO (mgll) 627 s96 asl asl esl a]o loeo 6]a <br />Bicarbonate as CaCO (mgA) 20 6n s96 esl esl esl no loeo 674 <br />Carbonate as CaCO (mgA) 20 <t4DL <NDL <!~L <t~L <PIDL <PIDL <f~L <!IDL <br />Hydroxide as CaCO (mgll) 20 <IgOL <f~L <f4DL <PIDL <PiDL <t~L <!IDL <MmL <br />Chloride (mg/I) 1 39 40 119 119 119 3B 125 57 <br />Conductivity (umhos/cm) 1 3300 2620 3150 7190 7190 2160 33'10 2]16 <br />Nitrate (mg/l) 0.02 0.49 0.99 <t4DL <PIDL <DIDL 0.05 0.6] 0.95 <br />Nitrate/Nitrite as N, dis. (my/I) 0.02 0.49 0.49 <DIDL <IgDL <IgDL 0.06 0.6] 0. q 6 <br />Nirite as N, dissolved (mgA) 0.01 <FIDL <IgOL <l4lL <MDL <FIIIL <PIDL 0.09 0.01 <br />Nitrogen, ammonia (mgA) 0.05 <t~L <f+mL 2.13 2.13 2.1] <PIIIL 2.00 0.71 <br />pH (Lab Units) o.ol ].2 7.3 ].s ].s 7.s ].z ].e ].7 <br />Hardness (mgA) 1 <nroL lzeo 12so 12eo <nroL l4ao sll <br />Phosphate (mg/I) 0.07 <I~L <PIDL <DIIIL <IaDL <PII)L <tgDL <f~L <P10L <br />Phosphorous, ortho dis. (mg/I) 0.005 0.006 <MnL <!IDL <FIDL <I90L <PIIIL 0.510 o. a6e <br />TDS Q1B0 C (mg/I) 10 2240 2290 2990 2490 2940 1]50 2310 217] <br />SAR o.03 l.sz 1.7o s.le s.le s.la <nroL s.zl 2.01 <br />Sulfate (mgA) to llao uao e]o e]o e]o ]60 1190 991 <br />Metals <br />Arsenic, dissolved (mg/I) o.ool <taoc <IaoL o.ool o. ool o.ool <~L a.oo9 0.001 <br />Cadmium, dissolved (mg/I) 0.007 <o-roL <tgDL <sroL <rroL <I~mL <rvL <t~roL <troL <br />Calcium, dissolved (mg/I) 0.2 243.0 zae.o zol.o zol.o zol.o 19s.o 250.o zzs.7 <br />Iron, dissolved (mg/I) o.ol 0.07 <!IDL o.46 o. as 0.96 <nroL o.so o.ll <br />Iron, total recoverable (mg/I) o.ol ~ o. ss o.ae e.as 9.96 e.4s 0.99 z7. so e.se <br />Magnesium, dissolved (mgll) o.z 19e.o 199.0 189.0 ls9.o le9.o lsa.o 199.0 lea.z <br />Manganese. dissolved (mg/I) o.ocs o.oz o.ol o.loo o.loo o.loo <DII)L o.llo o.o30 <br />Manganese. total rec. (mgA) o.oos o.06 0.03 o.lzo o.lzo o.lzo 0.030 o.lao o.oe3 <br />Mercury, dissolved (mgll) 0.0002 <PII)L <FIDL <t~L <faDL <NO)L <IgOL <f~L <t~tOL <br />Selenium, dissolved (mgA) D.001 <lIOL <FII)L <t~L <FII)L <IHDL <NmL <FIDL <r~L <br />Sodium, dissolved (mg11) 0.6 110.0 196.0 421.0 921.0 921.0 315.0 426.0 191. B <br />Zinc, dissolved (mgA) 0.01 <NmL <FIDL <DfOL <MmL <f~L <IgDL 0.09 0.01 <br />Requiretl by cunent permit <br />Baseline Inlonnation for Point AW-3 is derived from events beginning on 11/23/1996 through 3/27/1997, a period of -4 months. Point influenced Oy mining on 3/27/1997. <br />~Iluvial Wells AW-1 through AW-6 are located along the north sitle or Old State Highway 733, near Ne entrance to the mine. <br />MDL =Method Determination Limit BLANK =Nat Tested Monitoring Point Table 109 <br />