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<br />CHITR~EY ROCK COAL <br />HYDROLOGIC I1:VtiSTIGATIOt:S <br />Field Data <br />Station: S-1 Surface Inflow R ^ <br />~ <br />S~ <br /> iJ~~ 1J of ~^'- ~~` (~' <br />Yv" ~ ~ 6~N~ ~,^t }"''D ..-~ <br />V <br />Month: Ol 02 03 04 OS 06 07 08 09 IO 11 12 Average <br />ph 7.3 6.6 7.1 7.1 7.4 7.4 7.4 7.4 7.5 X X X 7.2 <br />Alkalinity 256 222 257 265 222 240 256 188 II r; \ X 238.25 <br />(mg/1) <br />Conductivity 900 850 1075 1000 850 li 900 800 95b X X X 915.6 <br />(uohms/cm) <br />Temperature 9.5 5.5 3 3 8 4 10 13 15 X X X 7.8 <br />(o C) <br /> l ~ <br />Flow (cfs) 1.6 1.3 1.79 .75 3.29 3.24 .59 1.93 .35 }: X X 1.64 <br />Station S-2 Surface Outflow <br />liontfi: O1 02 03 04 OS 06 07 OB 09 10 11 12 Average <br />ph 7.4 6.8 7.1 7.25 7.4 7.4 7.4 7.5 7.3 7.4 7.4 7.4 7.3 <br />Alkalinity 293 239 239 265 256 257 339 205 240 222 239 273 255.6 <br />(mg/1) <br />Conductivity 860 900 850 880 900 li 860 850 800 1150 900 925 897.72 <br />(uohms/cm) <br />Temperature 11.0 9.0 8.5 8.0 11 9 18 18 25 23 17 20 14.79 <br />(o G) <br /> / ~ x' <br />Flow (cfs) 2.8 1.5 3.11 1.61 3.99 3.72 2.55 4.46 .5 1.46 1.43 1.65 2.40 <br />X= Dry <br />11 = Field error/equipment problem <br />