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Bowie Resources Limited Bowie No. 2 Mine • 2001 Annual Hydrology Report AW-6 Alluvial Well Depth - 112' Pipe 1.38' Above Ground Top of Pipe Elevation - 5981.18' Ground Water 1123/1996 to 3/27/199 327/1997 to Presets Baseline OperaUOnal .......................................................................... [d FataK{letet5 ~~ o2rzsrol o6N1ro1 oarztrol 12N Oroi Min Max Avg Min Max Avg (Feet) Water Elevatlon 5925 5926 5926 5924 343+.+ N39.6 sm6.s s9z+.s s9e1z 393J.3 Depth to Water (Feet) 56.3 54.8 54.6 56.'1 4.6 368 59.) 0.0 36.) 309 pH (Standard Units) ~ ~ z 7.3 7. z 7. z z+ za 7e zD sz.+ 9.> Conductivity (umhos/cm) szoo 3600 4zoo sooo +600.0 +6ro.o +6m.o >.+ szoo.o u6es Temperature (C) 14.1 16.1 1s.9 12.6 u.+ u.+ u.+ ss.7 3700.0 zoez ab Paralte[ers ,: Wet Chemistry MDL Alkalinity as CaCO (mgA) 390 z7a x7e z7e 333 m 3>s Bicarbonate as CaCO (mg/I) zo 390 z7a x7e z7e 332 3n 37s Carbonate as CaCO (mgA) zo P1DL <MDL <MDL <MOL <MDL <MOL <MDL Hydro3dde as CaCO (mgA) z0 4NDL <MDL <MDL <MDL <MDl <MOL <MDL Chloride (mgA) 1 131 lo) 10) 307 63 131 B9 CondUCtlVlty (Umh06/Cm) 1 4840 +030 x030 4DID 36A 4em am Nitrate (mgA) o.oz 7. so zm z3o z3o 120 e.m 6.62 Nitrate/Nitrite as N, dis. (mg/l) °. oz 7. so z3o 7.30 >m 1zo sso 6.62 Nitrite as N, dissolved (mgA) ° ~ of Q4DL D.o4 o.a o.o+ <MOL 0.03 o.m Nitrogen, ammonia (mg/l) o. os o.l0 0.07 0.07 o.m <MDL ozo 0.07 • pH (Lab Units) o. of Hardness (mgA) 1 Phosphate (mg/I) 0.03 7.e 2030 avL z7 IWO <MOL 77 19eo <MDL z7 leeo <MOL z3 <MOL <MDL 79 2040 aozs zs un 0.003 Phosphorous, ortho dis. (mg/I) 0.005 0.009 eMOL <MDl <MDL <MOL OA9D 0.016 TDS X180 C (mg/q l0 4'+ao n1o No 391D 33sD +74D m3: SAR 0.03 5.09 3.09 3.03 Sm <MDL 3D +.q9 Sulfate (mg/q to ze3o z3ao 2300 z3ao v+o za3o 2267 Metals Arsenic, dissolved (mgA) 0.001 QdDL <MDL <MOL cMDI <MDL <MOL <MDl Cadmium, dissolved (mgA) 0.003 Q-mL <MOL <MDl <MDL <MDl <MDL <MDl Calcium, dissolved (mg/I) o.z 264.0 x+e.o x+e.D zae.o 243.0 zw.D z».> Iron, dissolved (mgA) 0. of Q4DL <MDl cMDL <MDL <MDl 030 0.01 Iron, total recoverable (mg/I) 0.01 4.74 026 02b 026 029 4.N 1.13 Magnesium, dissolved (mg/q o.z 333.0 00zD 3m.D m>.o z+e.o 3+0.0 3ms Manganese, dissolved (mg/Q o. oos Q+DL D29o I ozso 0290 <MDL ozn ooze Manganese, total rec. (mg/l) o.oos o.3s 0290 0290 0290 <MDL u.3so 0.10> Mercury, dissolved (mgA) 0.0002 0.0007 <MOL ~ <MDL cMOL <MOL 0.0007 oaool Selenium, dissolved (mg/I) a. aol 0.054 o.o1e ~ o.o1e D.D49 o.o3s a.os+ 0.0+6 Sodium, dissolved (mg/I) 0.6 su.o w1.o so1.D so1.o +z+.o s+o.o +ae Zinc, dissolved (mgA) 0.01 Q4DL <MDL eMDL cMDL <MDL 0.01 0.01 Required by current permit. Baseline Information (or Point AW-6 is derived from events beginning an 11/23/1996 through 327/1997, a pedod of-4 months. Point in9uenced by mining on 3/27/1997. .Alluvial Wells AW-1 through AW-6 are located along the nodh side of Old State Highway 733, near the entrance to the mine. MDL =Method Determination Limit BLANK =Not Tested Monitoring Point Table 112