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C2713857D1ED34B587258B570053FBF2 Hearing Summary




PUBLIC
BILL SUMMARY For PRESENTATION ON ORPHANED MINES AND ACID MINE DRAINAGE

JOINT COMMITTEE COMMITTEE ON WATER RESOURCES AND AGRICULTURE REVIEW COMMITTEE
Date Jul 11, 2024      
Location Off-site



Presentation on Orphaned Mines and Acid Mine Drainage - Committee Discussion Only


09:17:25 AM  
Michael Cunningham
and Russ Means, representing the Department of Natural Resources, came
to the table to discuss acid mine drainage and orphaned mines.
09:20:54 AM  
Mr. Cunninghman continued by discussing 145 abandoned mines that discharge water and water quality.
09:23:24 AM  
Mr. Means continued by discussing a legacy issue related to the Schwartzwalder Mine. The underground uranium mine ceased in 2000 and its proximity to the Ralston Reservoir.
09:27:54 AM  
Mr. Means continued by discussing the water treatment by reverse osmosis and ion-exchange systems and the current status of water quality.
09:32:54 AM  
Mr. Cunningham continued by discussing the London Mine and the drainage water quality work.
09:42:03 AM  
Mr. Cunningham wrapped up his presentation by discussing opportunity for further projects.
09:50:33 AM  
Mr. Cunningham answered several committee questions related to the historic nature of mines, the future of mining in Colorado, and the designation of superfund sites, among other issues.
09:52:35 AM  
Mr. Means answered questions related to the financial bonds and mining operations.






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