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FACTS ON RECLAMATION
At all U.S. mining operations, detailed reclamation plans must
be approved by government officials and local permitting groups
before mining begins. Reclamation bonds are posted by mining companies
to ensure a successful completion of the process.
Reclamation includes the following steps:
- contouring of land;
- the placement of topsoil or an approved substitute on the graded
area;
- reseeding with native vegetation, crops and/or trees;
- and years of careful monitoring to assure success.
Ultimately, reclaimed sites are returned to many productive uses,
ranging from recreation areas, farms and golf courses to wildlife
areas, parks, wetlands and housing developments. For an extensive listing of post-mining land uses
in West Virginia, Kentucky and Virginia, see the article,
"Post-Mining Land Use",
published in Coal Leader.
As surface mines are developed, the topsoil is segregated as the
overburden (dirt and rock covering the mineral-bearing ore) is removed.
That topsoil is then used for reclaiming mined-out areas, so that
native trees and grasses can be replanted and thrive. Humid areas
with gentle topography are the easiest to restore and revegetate,
but special techniques have been developed for use in arid, mountainous
and arctic regions
Care is also taken to minimize erosion and runoff where ground
cover is temporarily removed. Special flood-control and sediment-control
measures are necessary to prevent damage.
Although underground mines do not have as much surface disruption,
they do have reclamation responsibilities for stabilizing tailings
ponds during use and reclaiming the area when mining is completed.
Any surface subsidence must also be accounted for and included in
mining plans. As always, surface and groundwater must be protected
from acid drainage and metal components higher than the ambient
water levels.
Mining companies are constantly seeking better methods of reclaiming
mined lands.
Since 1978, more than 2 million acres of mined lands have been
restored to their original or better condition, as well as more
than 100,000 acres of coal mines abandoned long ago.
Reclamation is required by both state law
and the federal Surface
Mining Control and Reclamation Act (SMCRA). To ensure
the long-term success of reclamation, the regulations require the
coal company to post bond, ranging as high as $10,000 per acre,
for the land it mines. Before the bond can be released to the company,
the site must be returned to an "approved" condition and
use, and remain stable for several years. The government is required
to hold part of the bond for at least five or 10 years, depending
on annual rainfall.
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