The quality of this water is degraded,so it is unsuitable for drinking, irrigation, or recreation.Since mining disturbs the natural vegetation in an area,water may carry soil particles into streams and cause erosion and siltation. Some mining operations, such as
strip mining, rearrange the top layers of the soil, which lessens or eliminates its productivity for a long time.Finally, the water that drains or is pumped from mines or that flows from piles of waste rock or tailings often contains hazardous materials (such as asbestos, arsenic, lead, and radioactive materials) or high amounts of acid that must be contained or treated - but often are not. Many types of mining operations require vast quantities of water for the extraction process.
The quality of this water is degraded,so it is unsuitable for drinking, irrigation, or recreation.Since mining disturbs the natural vegetation in an area,water may carry soil particles into streams and cause erosion and siltation. Some mining operations, such asstrip mining, rearrange the top layers of the soil, which lessens or eliminates its productivity for a long time.Finally, the water that drains or is pumped from mines or that flows from piles of waste rock or tailings often contains hazardous materials (such as asbestos, arsenic, lead, and radioactive materials) or high amounts of acid that must be contained or treated - but often are not. Many types of mining operations require vast quantities of water for the extraction process.
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