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gravel mine |
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gravel mine [′grav·əl ‚mīn] (mining engineering) A mine extracting gold from sand or gravel. Also known as placer mine. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Rule 1157, which was adopted by the South Coast Air Quality Management District in January 2005, was designed to reduce particulate emissions from sand and gravel mines. It's negotiating with the owners of two gravel mines to use pits as water retention basins, and is planning to clean and store water in seven-million-gallon crude oil tanks at a local steam plant. Perhaps not surprisingly, gravel mines are typically among the last things, together with prisons and nuclear waste sites, that communities want to see in their backyards. |
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