Texas Abandoned Mine Land Reclamation Projects
Texas Abandoned Mine Land Reclamation Projects
Railroad Commission of Texas
Surface Mining and Reclamation Division
Texas Abandoned Mine Land Reclamation ? (11/02)
August 3, 1977, the United States Congress passed the Surface Mining Control and Reclamation Act (SMCRA). This act established national coal mining and reclamation standards and created the Office of Surface Mining Reclamation and Enforcement (OSM) within the U.S. Department of Interior. The Act also established the Abandoned Mine Land Reclamation Fund to reclaim mine lands that had been abandoned and left inadequately reclaimed.
Abandoned mines are eligible for reclamation under the Texas Abandoned Mine Land Reclamation Program, if all mining had ceased and the mine was abandoned prior to June 20, 1975, for coal and uranium and August 3, 1977, for all other types of mining.
Funding for the Texas Abandoned Mine Land Reclamation Program is provided by a federal reclamation fee levied on each ton of coal mined in Texas. These fees are deposited in the Abandoned Mine Land Reclamation Trust Fund maintained by the U.S. Treasury. The U.S. Congress makes a yearly appropriation from the Fund to OSM. Texas receives an annual distribution from OSM's appropriation according to a formula established by OSM. The Texas AML Reclamation Program is currently authorized and funded by the U.S. Congress through 2004. Reclamation projects are selected from the Texas AML Program's prioritized inventory of abandoned mines. The AML staff contacts the landowner of the selected project, describes the AML program and proposed reclamation before securing a right-of-entry. The AML staff prepares reclamation designs and obtains environmental permits and clearances for the proposed AML project.
The AML staff prepares construction bid documents, work specifications, and competitively bids the reclamation work. A contractor is selected and awarded a contract to complete the reclamation. The Texas AML staff then inspects and manages the reclamation and reclamation contractor.
The Texas AML Program has reclaimed 2,160 acres of abandoned surface mined land and closed 400 abandoned dangerous underground mine openings in 13 Texas Counties as of January 1, 2001. The Texas AML Program certified completion of all available coal AML reclamation in 1992 and has since been focusing on abandoned surface uranium mines in south Texas and abandoned hardrock mines in west Texas.
Texas AML reclamation efforts are summarized in the following three sections:
Coal Uranium Hardrock
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Texas Abandoned Mine Land Reclamation ? (11/02)
Amarillo
El Paso
Lubbock
Fort Worth
Odessa
Abilene
Dallas
Tyler
Big Bend Nat'l Park
Austin
Del Rio
Houston San Antonio
Project Location
(Click for information on project)
Laredo Corpus Christi
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Texas Abandoned Mine Land Reclamation ? (11/02)
COAL The two basic types of coal deposits mined in Texas are bituminous coal and lignite. Prior to the 1950s, both types of coal were mined by primarily underground methods. Bituminous coal was mined in 15 north central Texas counties between the late 1800s until the 1920s. Bituminous coal was also mined in south Texas between Laredo and Eagle Pass during roughly the same period. Lignite was mined from deposits located along a narrow belt from Texarkana to San Antonio. Most of these deposits were mined by underground methods from the late 1800s till the 1920s. In the 1940s and early 1950s, surface lignite mines were developed primarily as boiler fuel for electricity generation. The Texas AML Reclamation Program has completed nine coal or lignite projects. These range in size from a one-acre subsidence feature backfill to a 1,100 acre abandoned surface mine reclamation project. Health and Safety Health and safety hazards associated with abandoned underground coal mines include: ?Deep abandoned shafts ?Unstable mine roofs ?Toxic or harmful gases Health and safety hazards associated with abandoned surface coal mines include: ?Unstable highwalls ?Deep steep-sided pit impoundments ?Unstable spoil piles Stay out! Stay alive!
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Texas Abandoned Mine Land Reclamation ? (11/02)
Environmental
Abandoned spoil piles and highwalls are often poorly vegetated and severely eroded. Abandoned spoil is often acidic, thereby preventing plant growth and occasionally producing acid mine drainage.
Reclamation
Most underground coal mines are reclaimed by simply backfilling the mine opening or subsidence feature with compacted fill. The disturbance is generally retopsoiled and seeded. Terraces may be constructed to divert water away from the mine closure.
Surface mine reclamation is generally more complex. The components for a typical surface coal AML project are as follows:
? Grade spoil and highwall (dewater pit if necessary). ? Treat graded spoil with lime (crushed limestone) ? Construct water control structures ? Revegetate
? Plant temporary cover crops (wheat, millet) ? Plant permanent grass species and sometimes trees ? Manage vegetation prior to releasing to landowner
Summary of Texas Coal AML Reclamation Project Costs
Lumsden Wallace Olmos Parker Bastrop Alcoa Timpson (OSM Emergency) Somerset (OSM Emergency) Malakoff Total
$61,240 $73,400
$4,350 $52,900 $57,466 $7,242,922
$3,800 $19,235 $66,890 $7,582,203
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