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energy - necessary and hauled away by truck for beneficial...

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( http://www.flickr.com/photos/kyledg07/2258676741/sizes/z/in/photostream/ ) he plant has a 40-acre ash pond surrounded by a 50-foot-high dike off the Mississippi River. It's 45 miles northwest of the Twin Cities, which use the river for drinking water. Boyle said the dike was inspected by the state in the past year. We do know that some coal ash is stored temporarily in slurry ponds before being shipped off-site for disposal, while some is stored there indefinitely. Some is placed in land disposal facilities. And some is actually used in industrial and consumer products.
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Coal ash may be stored temporarily on-site at the power plant prior to reuse or permanent disposal. The majority of our coal ash is collected from plant equipment and temporarily stored in dry-storage silos. In some cases, water is used as an efficient means to convey ash material through a pipeline to a temporary holding pond or wet-storage bins. When temporary storage is full, the ash is removed, dewatered if
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Unformatted text preview: necessary, and hauled away by truck for beneficial reuse or permanent disposal. Most of our ash holding ponds are constructed as below-grade basins, similar to an in-ground swimming pool. A notable exception is the Sherburne County Generating Station (Sherco) where some ash ponds are substantially above grade or ground-level. Ash ponds that are above grade are subject to state dam-safety inspection programs. In 2009, the U.S. Environmental Protection Agency (EPA) asked utilities across the country to submit detailed information on company-owned coal ash surface impoundments. Xcel Energy provided EPA with information on its 21 surface impoundments used to manage coal ash, as well as other surface impoundments, such as storm-water containment ponds. Xcel Energy’s response can be found on the EPA website ....
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energy - necessary and hauled away by truck for beneficial...

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