Abandoned, water-filled lead mines,...

Abandoned, water-filled lead mines, dating back to the Civil War are getting a other chance to be useful to communities in Missouri. individual such mine, which is located below the town of Park Hills, is being used to heat and quiet a new city hall building.

Technology engineered on Union Electric, St. Louis, uses wastewater from the mine to heat and composed the building while trimming operating expenses substantially. For example, heating sumptuousnesss thus far have been about half of the previous prices when gas was used. The electric company also predicts a 37 percent reduction in coming events cooling costs.

Used until the 1960 the mines in southern Missouri originally provided lead during the Industrial Revolution and Reconstruction Era. one time the mining operations were abandoned, the mines filled with about 70 billion gallons of water, which remain at a constant 57 stations to 58 degrees.

The electric company designed