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Remediation of Abandoned Mine Lands |
CDM performed a detailed water and mass balance evaluation consisting of analyzing the water chemistry and measuring water levels for 17 groundwater wells, and measuring flows and water chemistry at five locations along the Avoca River, five tributaries, and seven flowing mine adits. In addition, a tracer test was performed in the Avoca to evaluate potential underflow.
The results indicated that the
Based on the results, the remediation measures under consideration include; removal of tailings and capping of waste rock near the river and in recharge areas, treatment of the adit discharges, capture and treatment of impacted groundwater and removal of impacted sediments in the reaches just down-gradient of the adit discharge points.
Kent S. Whiting, LG, CDM Mr. Whiting received his Masters Degree in Geochemistry from the Colorado School of Mines and has been practicing as an environmental scientist at CDM for the past 19 years. Mr. Whiting specializes in the fate and transport of metals and arsenic and passive treatment of mine impacted waters. Other areas of specialization include; mine site evaluations and remediation, and the use of the electron microprobe for environmental investigations.