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Bowie Resources Limited <br />Bowie No. 2 Mine <br />• 2000 Annual Hydrology Report <br />AW-6 Alluvial Well <br /> <br />Depth - 112' Pipe 1.38' Above Ground Too of Pipe Elevation - 5981.18' <br />Ground Water <br />11/23/1996 to 3/27/199 3/27/1997 to Present <br />Baseline Operational <br /> 07105100 06120100 091]9100 11/00100 Mln Max Avg Min Max Avg <br />Water Elevafion (Feet) 9929 592] 992] 5926 5929.4 9929.6 9926.5 9924.9 5993.2 5931.5 <br />Depth to Water (Feet) 52. J 94.0 59.3 59.6 52.6 56.9 54. ] 0.0 56.1 •9.6 <br />pH (Standard Units) ].3 ].9 ].4 ].7 ].4 ].9 ].9 ].0 52.9 10.9 <br />Conductivity (umhoslcm) 4100 4100 9600 5000 4600.0 4600.0 4600.0 ].4 5000.0 406].2 <br />Temperature(C) 11.] 19.2 17.6 19.1 12.4 12.4 12.4 11.] /]00.0 259.8 <br />Wet Chemistry MDL <br />AJkaliniry as CaCO (mgA) J9z 3]] 2]9 nfi ne 332 392 J]9 <br />Bicarbonate as CaCO (mgll) z0 3sz 3n 2]s nfi ne JJZ 3sz n4 <br />Carbonate as CaCO (mgA) 20 <DIDL <MmL <f90L <UIDL <t~L <f40L <I4DL <610L <br />Hydroxide as CaCO (mgA) 20 <Fff1L <MmL [FIDE <MDL <f9DL <l1DL <MmL <h1DL <br />Chloride (mgA) 1 el 104 lo] 10] lo] 63 lp] a9 <br />Conductivity (umhos/cm) 1 4010 9910 9030 9070 9030 36]0 9690 4162 <br />Nitrate (mg/I) 0.02 1.20 ].60 7.30 ]. JO ].30 1.20 9.90 6.57 <br />Nitrate/Nitrite as N, dis. (mgA) o.oz 1.20 ].so ].JO ].30 ].30 l.zo e.so s.s3 <br />Nitrite as N, dissolved (mgA) o.ol <t~roL <rroL 0.09 0.09 o.oa <nvL o.oa o.oo <br />Nitrogen, ammonia (mg/I) o.os <troL <DIDL o. o] o. o] o.o] <rroL o.zo o.ps <br />pH (Lab Units) 0.01 ].9 ].4 ].] ].] ].] ].3 ].9 ].s <br />Hardness (mgA) 1 <!IDL lefio leap lefio <I9oL 2090 1199 <br />Phosphate (mg/I) 0.07 <I1DL <t9pL <f~L <PIDL <MG1L <DIDL 0.025 0.003 <br />Phosphorous, ortho dis. (mgA) 0.005 o.ooe 0.009 <t4pL <npL <moL <t~roL o.oeo 0.016 <br />TDS @180 C (mg/1) 30 l]60 9210 1910 3910 3910 3390 4]90 7953 <br />SAR 0.03 4.66 5.10 5.09 5.09 5.09 <!IDL S.z] 4.J] <br />Sulfate (mgA) 10 2180 2500 2300 2700 2300 1]90 2510 2209 <br />Metals <br />Arsenic, dissolved (mg/I) 0.001 <!IDL <PIDL <nDL <DIDL <nDL <PIDL <DII)L <I90L <br />Cadmium, dissolved (mg/I) 0.001 <19pL <t~IDL <NmL <nDL <I~L <t~IDL <t4DL <IfOL <br />Calcium, dissolved (mgll) 0.2 216.0 299.0 296.0 246.0 248.0 202.0 25].0 23].0 <br />Iron, dissolved (mg/l) 0.01 0.02 O.OI <DII)L <Pff)L <PIDL <NmL 0.20 0.09 <br />Iron, total recoverable (mgll) 0.01 O. BO 1.70 0.26 0.26 0.26 0.29 1.70 0. ]5 <br />Magnesium, dissolved (myll) 0.2 2]].0 319.0 l0].0 30].0 30].0 246.0 790.0 296.9 <br />Manganese, dissolved (mgll) 0.005 <PIDL <rmL 0.290 o.z9o o.z9o <nmL o.zll o.oJl <br />Manganese, total rec. (mgA) 0.005 0.06 o.os 0.290 o.z9o 0.x90 <n1pL o.zll o.oeo <br />Mercury, dissolvetl (mgll) 0.0002 <t~L <PIDL <t~L c[~IDL <DIDL <IHOL <MpL <MG1L <br />Selenium, dissolved (mgA) 0.001 0.090 O.OSI O. o9B 0.096 0.096 0.036 0.059 0.096 <br />Sodium, dissolved (mgll) 0.6 952.0 509.0 501.0 901.0 501.0 929.0 590.0 9]5.2 <br />Zinc. dissolved (mgll) 0.01 <t9o <nv <t~L <nvL <l1DL <FIDL c.a9 a.01 <br />Required by cunent Dertnit. <br />Baseline Inlonnaticn for Point AW-6 is derived ham events beginning on 11/23/1996 through 3/27/1997, a panod of -4 months. Point influenced by mining on 3/27/1997. <br />.Alluvial Wells AW-1 through AW-6 are located along the north side of Oltl Slate Highway 137, near the entrance to the mine. <br />MDL =Method Determination Limit BLANK =Nat Tested Monitoring Point Table 112 <br />