Laserfiche WebLink
June 25, 2010 <br />4of15 <br />permeabilities are so low, the rock mass outside and above the mine was not affected very far from the <br />mine. In fact, monitoring wells MW 10 and MW 11 on the hillside above the mine contain water because <br />the rock is too tight to drain into the unsaturated workings directly below. On the ridge between the mine <br />and Ralston Creek, water levels are expected to be higher than water levels in the mine pool, thus <br />indicating a hydraulic divide between the mine and Ralston Creek along the Schwartz Trend. Water level <br />elevations from two paired deep bedrock monitoring wells planned for installation in 2010 are expected to <br />confirm the hydrogeologic conceptual model. <br />Table 2. Results of Ralston Creek Water Quality Survey Across Schwartz Trend, <br />December 2009 <br /> <br /> <br /> <br />arameter / Units <br />SamplelD <br />Date <br />Time RC1- <br />091209 <br />12/9/2009 <br />14:50 RC2- <br />091209 <br />12/9/2009 <br />14:15 RC3- <br />091209 <br />12/9/2009 <br />15:15 RC4- <br />091210 <br />12/10/2009 <br />07:47 RC5- <br />091210 <br />12/10/2009 <br />10:15 RC6- <br />091210 <br />12/10/2009 <br />10:45 _ <br />Molybdenum, diss. mg/L <0.1 U <0.1 U <0.1 U <0.1 U <0.1 U <0.1 U <br />Uranium, dissolved mg/L 0.385 0.385 0.391 0.433 0.435 0.433 <br />Uranium, suspended mg/L 0.0016 0.0019 0.0015 0.0017 0.0015 0.0014 <br />Radium 226, dissolved pCi/L 0.82 0.73 0.26 0.67 0.37 0.36 <br />Radium 226, pCi/L -0.05 U -0.006 U -0.07 U 0.04 U 0.06 U 0.05 U <br />suspended <br />Conductivity (Field) µmhos/cm 412 389 405 418 421 431 <br />pH (Field) S.U. 7.20 7.24 7.14 7.47 8.03 7.97 <br />Temperature Field °C 0.8 0.6 0.5 0.4 0.5 0.5 _