Tag:man made=tailings pond - Other languages
 man_made = tailings_pond
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A body of liquid or slurry used to store byproducts of mining operations. 
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Status: approved
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Atailings pond, tailing pond, settling pond, or settling pit is an area in which waterborne tailings are pumped into a pond to allow the separation of solids from the water. The pond is generally impounded with a dam, and known as tailings impoundments or tailings dams.
Tailings are the materials left over after the process of separating the valuable fraction from the uneconomic fraction of an ore. (See: 
Tailing ponds)
Since the purpose of tailing ponds is to contain hazardous substances, they are not constructed like reservoirs with water intended to flow through, which often helps to recognize them. Since many tailings ponds are partially fed by streams or rainwater in addition to ore processing, they will either outflow naturally, often with a water treatment facility for environmental remediation. It is also common to construct tailings ponds without any outflow.[1][2] In some cases, a tailings pond may have unremediated outflows to streams or rivers, causing undesireable environmental damage.
Tailings ponds are discernable based on their colorful (polluted) appearance and lack of outflow. Many of them are surrounded by characteristic dams or berms. Tailings ponds often (but not always) take man-made shapes. Often, tailings ponds can be found near a mining or otherwise obviously industrial operation.
Tailings ponds are tagged man_made=tailings_pond, and are mapped as an area with the line drawn at the high water mark if the pond regularly varies in size. Tailings ponds which vary in presence should also be tagged with intermittent=yes.
A body of water formed by excavation at a quarry or gravel pit, or from dredging operations are not tailings ponds if they are not used to store or remediate tailings. Such bodies of water can be tagged natural=water, possibly with appropriate sub-tags. There is not currently a consensus in the community as to how quarry lakes should be tagged beyond the top-level tag natural=water.
The following table lists tagging that is useful for tagging separate features in and around tailings ponds:
| Tag | Used for |
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| man_made=spoil_heap | Dry tailings or spoils that are not submerged in a tailings pond. |
| waterway=dam | A dam which is holding back a tailings pond. |
| man_made=embankment | An embankment, which may be found encircling a tailings pond. Also see man_made=dyke |
| The overall land use of the site which includes the tailings pond. |
A tailings pond may also have nearby incidental water areas that, while not used for storing tailings, are still contaminated through leakage or as a function of the tailings remediation process. Consider the following options for tagging these areas of contaminated water:
Las Tórtolas tailing pond, Chile
Bauxite residue dump, Germany
Sunokobashi tailing pond, Japan
Recycled water settling pond, Kachkanar, Sverdlovskaya oblast, Russia
Wheal Jane settling pits, United Kingdom
Settling pond at a uranium processing plant, United States
