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Bowie Resources Limited • Bowie No. 2 Mine Surface Water Hydrologic Monitoring Data (1997 - 1999) C_C;r Lleh_In Dralnaae Svstem 2/28/7 995 10 130H997 3/30/7997 bPresent Elev. 5960 Basellnw nnwr~u~nwl Fleid Parameters :, `~~za~'-`k oen> eenx awx ++nrlowe I awe nne +ue osm oun wne ++,vr Mln Max Avg Mln Max Avg Ffow Rate (gpm) a] o.] 0.3 0.:+ o.o as +] os x.x 1s as o.. o.o I o.o o.o o.a ns ].a W ater level °i+' pH (Stantlard Units) 3.9 3.9 7.3 a. e.] 0.9 e.] e.z e.+ e s e.+ 3.o e.9 e.1 Conductivity (umhos/cm) sem saoo swo sem szm um zsm ]soo am ]xm nm sso s+aa nn Temperature (C) m.e v.: z+.a o.z 1s.z v.] zs 1az Les az +e o.x {e6 Lon Lab Pararne~ers~ `; Nbrp ~ a .i, , now~r Wet Chemistry MDL perlod.r level tlurlnp {tile Alkalinity as CaCO (mg/p sa soe i +n +u s:o .n i +u soe s1a Bicarbonate as CaCO (mg/I) x sa soe i +s] +e] sxo +» .]] aoe sLa Carbonate as CaCO (mg/I) 3 <" <no~ <" <noL <noL <noL 'i <na <na <noa Hydroxide as CaCO (mg/l) : <noL <" <noL <" <nq <na <noa <noL <noL Chloride (mgA) L s+ se ss n 7a Los s. 3LO n Conductivity (umhos/cm) ' seso 5La v9o zsso +]w ]090 zsm 9]m +ero Nitrate (mgll) o.az o.os o.1 1:.w o.1a o.]e o.LO o.os Lz.w :.10 Nitrate/Nitrite as N, dis. (mg/I) o.oz o.os o.1z Lzw o.:o 0.]9 o.n o.os 1za zu .Nitrite as N, dissolved (mgll) 0.01 <n <noy <noL a.o: o.o{ <na <noL a.u o.m pH (Lab UnilS) o.L zs e.dl a.o ea ze e.o 3s es e.o Hardness (mg/I) L mo am. zosa ees {ago <n ~ <noL a3o L9ze PhoSPhate (mg/I) om <na <nou <n <noL o.a] <n ~ <noa a.zs o.m Phosphorous, Odho dis. (mg/l) o.ms <noL <no5 0.l a.au o.oos - <woL alm aa]. TDS @180 C (mgll) ]o sssa a1]a +950 19eo w]o xsa 19eo 93sa +e9e TSS (mg/I) s w L9+ <noL 1za eb 195 <noL uw us BAR a.a] s.y MCl 5.13 MpL M0. <n0. '. <nal Ia.JO ].W Sulfate (mgfl) 10 ]a1a mo mo 1WO zno 1no 1a]o s+m 36]L Metals Aluminum, total rec. (mg/I) o.m <n xso a.zo z3o L.m ].{9 <noL 3]0 1.e> Arsenic, total recoverable (mg/l) o.m1 <noa <nL>L o.m1 a.m] <noL am] ~ <noL o.m] o.ms Cadmium, total recoverable (mg/I) o.m] <n <noL <na <noL <noL <n <noL <na <noL (Calcium, total recoverable (mg/I) o.: ]sa.a ]u.o 3s+.o L:+o zzs.o Lsso 1x+.o ]u.o za+.] Copper, total recoverable (mg/I) o.: <nw <noL <n <noL <n <n «roa <np. <MpL Iron, total recoverable (mg/I) 0.01 a.o3 ].LO o.L1 930 o.9e ].+e o.m 9.3a z.z, Lead, total recoverable (mg/I) a.a l <noL <noa <noL m wa o.m <nw ~ o.m o.m Magnesium, total rec. (mg/l) o.: ]9].0 .11 o ssx.a L+o.o xis o 13x o 1a.o no.o r9.+ Manganese, total rec. (mg/I) 0.3 <" o.uo <na oleo o.ow o.1m <noL a.1eo I oan ~ ,Mercury, total rec. (mg/q o.omn <noL o.omz <n <n <noL , i <noL <noa o.maz o.mm ', Molybdenum, total rec. (mg/I) am j <noL <noL <" <noL <noL <n <noL <noL ~. <noL , Selenium, dissolved (mg/I) o.ml~ o.m] o.m] o.m3 ~ o.om om] o.mz o.mz I a.1zo ~ a.ale ,Sodium, dissolved (mg/I) o.]I 3oe.a 3+s.o 5N.0 ~i ueo sw.o ]a9.o x9e.o 1+sa.o ~ ssa9 Zinc, dissolved (mg/I) o.on o.os <ntt <n ! o.os <na. o.m ~ <noL , as a.o3 I Organic Mafysis Oil and Grease, total rec. Required by current permR. Baseline Information for Point C-Gulch-lo is tlenvetl from events beginning on 2/28/1995 through 3/30/t997, a period of -25 monNS. Point influenced by mining on 130/1997. The Lower C Gulch monitoring point .s just above Sediment Pond C. AJI C Gulch Mw is containetl in Pond C. This point exhiDiletl no flows before the cenaoruction of the mine The mine construction and now the mine operation pmv,de flaw to thie gulch MDL =Method Determination Limit BLANK =Not Test Monitoring Point Table 58