2009-04-13_REPORT - C1980006 (2)

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Kerr (Marr) Mine - 2008 Annual Hydrology Report TABLE 3 - MINE AREA SURFACE WATER DATA 2001 WY 2002 WY 2003 WY 2004 WY 4/5105 4111105 4/19105 618/05 4/12106 3121107 3127/07 413107 4110/07. 5/7108 STATION 301 Flow Rate cis NF NF once NF 0.488 0.085 NF NF NF 1.03 0.207 0.045 0.11 Field Temperature © 2 2 6 11 8 16 H -field s.u. 6.1 8.1 8.1 6.2 6.1 7.8 8.0 EC - field umhoslcm 100 200 85 200 180 650 Oil 8 Grease NONE NONE NONE NONE NONE NONE Settleable Solids mL/L/h <0.2 STATION 302 Flow Rate ds NF NF NF NF NF NF NF NF NF 0 033 0.027 0 002 0 002 Field Temperature ® 5 6 8 14 H - fieltl s.u 81 8 7.9 8.1 EC - field umhos/cm 75 100 130 100 Oil 8 Grease NONE NONE NONE NONE NONE Settleable Solids mL/L/h <.1 STATION 303 Flow Rate cfs NF NF NF NF NF NF NF NF NF RECL RECL RECL RECL RECL STATION 304 Flow Rate Icfs ?NF NF once NF 1.065 0.071 NF 0.101 NF 0b57 0.241 0.093 0.009 0.22E Field Temperature © 30 20 15.0 60 8.0 6.0 14 H -field s.u. 81 8.2 8.0 E.0 8.2 T9 7.9 E EC - field umhoslcm 200 100 100.0 100.0 100.0 150.0 200 Oil 8 Grease NONE NONE NONE NONE NONE NONE NONE NONE Settleable Solids mL/L/h <0.2 <0.2 < 1 <,1 <.1 STATION 305 Flow Rate cfs NF NF 4x NF 0.64 0 035 0 001 0.001 Q25 0.207 0.053 0.022 0.001 0.06 Field Temperature G?' 3.0 1.0 6.0 16.0 131 5.0 11_0 8.0 14 H - field Is u. 6.03 8.1 80 8.0 81 8.1 8.2 8.0 T9 6.1 EC - field umhos/cm 100 100 100 1DO.G 7740 95.0 100.0 140.0 200 Oil 5 Grease NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE Settleable Solids mL/L/h <0.2 <0.2 c1 <.1 STATION 321 Flow Rate ds NF NF NF NF 0.12 NF NF 0001 NF 0.206 0.0413 0.003 0.01 Field Temperature ® 4.0 150 6.0 10.0 8.0 15 H - field s.u 6.0 6.0 6 1 8.0 8.0 E EC - field umhos/cm 200 100.0 400 80.0 80.0 100 Oil 5 Grease NONE NONE NONE NONE NONE NONE Settleable Solids mL/Uh <Q2 <0.2 <.1 < 1 < 1 NF = No Flow Note: No flows on dates not shown Kerr Mine/-A ]R 2008 Page 7