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Monitor Well No. 2 (AMW-2) continues to recharge since the A-Pit <br />reclamation activity concluded. This has been a trend since the end of 1999 <br />when A-Pit reclamation was completed, but only since 2004 has it resulted <br />in volumes sufficient to allow sampling. Adequate water volumes were <br />found in this well during each of the quarterly samplings for 2010, making it <br />possible to obtain samples following the standard three-well volume purge <br />procedure. While the well bore water level recovery following testing <br />remains slower, the ever higher static water level provides evidence that the <br />highly disturbed zone in the reclaimed overburden area is recharging. The <br />timeline for this recharge is consistent with previous predictions. <br />Copies of the "Executive Summary" of analytical laboratory test results are <br />found in the pages following this text. Each ground water monitoring well <br />was sampled in accordance with the "permit procedure". The "B" <br />designation following the well identification indicates that the laboratory <br />sample was obtained after initial field sampling, well purging and a <br />subsequent (second) field sampling. The 2010 ground water monitoring test <br />results are again consistent with results from previous years analysis in that <br />there have been no confirmed statistical exceedences, with but one <br />exception, the samples obtained from the SMW-2 well during 2004. The <br />SMW-2 well is completed in the disturbed spoil material which is being <br />subjected to slow re-saturation by ground water, and appears to be leaching <br />dissolved minerals as the water table rises. This has caused manganese <br />concentrations to somewhat exceed the calculated tolerance limit. CEC <br />addressed this tolerance limit exceedence with CDPHE during 2005, and <br />was granted permission to continue the current detection monitoring <br />program. [Doty & Associates letter dated 04108105, "Alternate Source <br />Demonstration, Statistically Significant Increase Over Background <br />Manganese in SMW-2, Fourth Quarter 2004, Keenesburg Disposal <br />Facility".] <br />The direction of ground water flow to the extent that it has been <br />documented in the area of the Keenesburg Mine property, trends <br />downgradient to the northeast. Recharge of the aquifer in the "spoil area" <br />continues to be limited to a single source, the localized infiltration of <br />precipitation to the subsurface. There is no evidence of any significant <br />ground water recharge to the site from the Ennis Draw fluvial ground water <br />system. Ground water elevations in the sampled Ennis Draw wells close to <br />AHR-2010 -32-