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Bowie Resources Limited <br />Bowie No. 2 Mine <br />• 1999 Annual Hydrology Report <br />AW-1 Alluvial Well <br />Depth - 120' Pipe 1.06' Above Ground <br />For the Period Beginning 01/0111999 and Ending 12/31/1999 <br />Ground Vila#er <br />Too of Pioe Elevation - 5977.76' <br /> Field Parameters 05/21/1988 06/27/1999 69/09/1999 11/15/1999 Base Line Min Max Avg <br /> <br />/Water Elevation (Peep 5921."1 5915.0 5909.] 5650.5 591].4 15999. Si 593]. ] 5911.T <br /> <br />Depth to Water (Feet) 59.0 62.] 69.5 ]9.2 64.3 <br />sa. of 99. z: 66.11 <br />pH (Standard Units) ].3 ].a ].a 7.z ].a ].z, 7.e 7.a <br />'/Conductivity (umhoslcm) 3]0o a3co 39ao ssoo aozo ~ 3]0o i 5500 ' 4)50 '. <br />Temperature (D) 11.2 11.5 11.2 lJ.l 11.9 11.2 11.2' 12.1! <br /> <br />Lab arP ameters <br />Wet Chemistry <br />Alkalinity as CaCO (mg/q 43o a]o 6x9 ~ a3o I a]o 4so11 <br /> Bicarbonate as CaGO (mgll) a3o 4]0 629 mo ~ a]o aso <br /> Carbonate as CaCO (mg/I) <br /> Hydroxide as CaCO (mgA) j <br /> Chloride (mg/I) ]4 69 66 69 ]4 ]2 i <br /> Conductivity (umhos/cm) 4150 sl]0 ]OBO 4150 sl]0 4]60 <br /> Nllfate (mg/I) 3.901 2.93 6.55 ~ 2.911 3.90 3.92 <br />~ Nitrale/Nitrite as N, dissolved (mg/1) 3.90 2.91 6.55 2.93/ 1.901 3.42 <br /> Nitrite as N, dissolved (mg/1) 0.04 <br /> Nitrogen, ammonia (mg/I) p.13o 0.093 o.lJO o.130 0.130 <br /> pH (Lab Units) ].J a.a' ].~ ].YI '1.41 ].al <br />• <br />Hardness (mg/I) zszs ~ <br />Phosphate (mg/I) ! 1 <br />(Phosphorous, onho dissolved (mgll) O~0°s ~ °005, ° <br />Residue, Filterable (TDS) @160 C (mg/ 3zso 4690 I ]l05 ]290 i 4690 ~ 3985 I <br />Sodium Absorption Ratio in Water e.s1 9. s9 13.os I <br />~ e.s1~ 9.59' 9.os~~ <br />Sulfate (mgll) 1940 eso ~ sno 1940 ~ zeeo ~ zalo ~ <br />Metals <br />Arsenic, dissolved (mg/I) j o. 001 ~~ i <br />Cadmium, dissolved (mg/I) I ~ <br />Calcium, dissolved (mg/I) <br />llron, dissolved (mg/I) 1oJ.o <br />1.7s leo.o zs].3 lm.o' 1BO.o 1a1.5 <br />o.oe 1.]s 1.]s 1.751 <br />Iron, total recoverable (mgA) 1.s9 ~ 1.99/ O.a9 I 1.691 1.99 1.79, <br />Magnesium, dissolved (mg/q ~ 1se.o zsz.c 439.3 lse.o. zsz.ol zos.ol <br />jManganese, dissolved (mg/q I _ ~ I o.oso ' <br />Manganese, total recoverable (mgll) 0.030 1.3zo~ 0.033 ~ 0.030 1.3zo 0 675 <br />imercury, alssolved (mglq i I I ' <br />Selenium, dissolved (mg/l) o.on ~ 0.013 0.029 0.013 o.ozl 0.01] <br />Sodium, dissolvetl (mg/I) <br />~ saz.o a39.o 14]0.0 sez.o 819.0 uo.s <br />' <br />Zinc, dissolved (mg/I) <br />i 0.03 ~ o.a3 0.03 o.oi <br />Reqwreo by current permit. <br />Baseline In(Ormalion for Pont AW-1 is tlenved Irom events beginning in t 123/19961nrough 12/01/1997, a period of -12 mOntRa <br />.Alluvial Wells AW ~1 through AWE are lOratetl along the nodh side o! Old State Highlydy 133. near the entrance to the mine. <br />Monitoring Point Table 99 <br />