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ASTM International - ASTM D7780-20

Standard Practice for Minimum Geospatial Data for Representing Coal Mining Features

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Organization: ASTM International
Publication Date: 1 November 2020
Status: active
Page Count: 27
ICS Code (IT applications in other fields): 35.240.99
ICS Code (Mining and quarrying): 73.020
significance And Use:

4.1Â This practice addresses coal mining geospatial data in general and is significant to the coal mining community because it provides uniformity of geospatial data pertaining to coal mining... View More

scope:

1.1Â This practice defines a set of terms, procedures, and data required to define the accurate location and description of the minimum geospatial data for surface coal mining operations (CMO), underground coal mining extents, land reclamation and performance bond statuses, lands unsuitable for mining petitions (LUMP) and designated areas, coal spoil and refuse features, coal preparation plants, environmental resource monitoring locations (ERMLs), and postmining land uses.

1.2 Unitsâ€"The values stated in inch-pound units are to be regarded as standard. No other units of measurement are included in this standard.

1.3Â This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulator limitations prior to use.

1.3.1 This practice offers a set of instructions for performing one or more specific operations. This document cannot replace education or experience and should be used in conjunction with professional judgment. Not all aspects of this practice may be applicable in all circumstances. This ASTM standard is not intended to represent or replace the adequacy of a professional service, nor should this document be applied without consideration of a project’s many unique aspects. The word “Standard†in the title of this document means only that the document has been approved through the ASTM consensus process.

1.4 Surface CMOsâ€"As used in this practice, a surface CMO represents an area where coal removal, reclamation, and related supporting activities have occurred, is occurring, is pending authorization or is authorized by the Regulatory Authority (RA) within a defined surface CMO or any other unpermitted area that has been identified by the RA.

1.4.1Â This practice addresses coal mining geospatial data, interim permits, and permanent program permits. Each RA shall be the authoritative data source (ADS) for coal mining geospatial data.

1.5 Underground Coal Mining Extentsâ€"This practice addresses underground coal mining extents that represent an area where coal removal has occurred within a defined underground CMO.

1.6 Land Reclamation Statusâ€"This practice addresses the land reclamation status of surface areas within a permitted CMO where coal removal, reclamation and related supporting activities has occurred, is occurring, or is planned and authorized by the RA.

1.7 Performance Bond Statusâ€"This practice shows the status of coal mine reclamation as outlined by each phase of reclamation. In addition to defining the status of individual areas covered by a performance bond, use of this standard will identify the changes of the reclamation and bond status to mined areas as they change over time. Reference to bond status means performance bond status.

Note 1:Â A single bond may cover multiple permits or multiple bonds may cover a single permit.

1.8 Lands Unsuitable for Mining Petitionâ€"This practice addresses boundary data pertaining to areas that have been petitioned and designated as unsuitable for mining. It also addresses those lands that have been found by the RA’s process to be designated unsuitable for all or certain types of mining. These areas may be petitioned to be unsuitable for CMOs because they meet criterion that include, but are not limited to: fragile, historic, cultural, scientific, having esthetic values and natural systems such as aquifers that could be significantly damaged due to a CMO.

1.9 Refuse Structuresâ€"This practice addresses excess spoil and refuse features produced by CMOs. These features include excess spoil structures, coal refuse structures, and coal preparation plants.

1.9.1 Excess Spoil Structuresâ€"These structures are created when the total spoil produced during mining exceeds the volume of material that can be utilized for reclamation. This occurrence is common in steep slope areas, where the final grade of reclaimed slopes is limited by stability requirements. It also occurs where overburden volume is significantly larger than the volume of minable coal. Spoil also exhibits a net increase in volume due to the introduction of void spaces in fragmented rock when overburden is removed to expose underlying coal seams. The production of excess spoil requires the creation of disposal structures that extend outside the mined area.

1.9.2 Coal Preparation Plantsâ€"Facilities where impurities are removed from coal and potentially crushed, resized, and blended with other grades of coal. Preparation plants produce refuse as a byproduct.

1.9.3 Refuseâ€"A waste byproduct of coal processing, generally categorized as either coarse or fine. Fine coal refuse often is handled as a slurry containing a blend of water, fine coal, silt, sand, and clay particles.

1.9.4 Impounding Refuse Structuresâ€"These structures create a holding area for slurry that allows solids to settle out and water to be recovered. Cross-valley and diked impoundments utilize an embankment, often constructed of coarse coal refuse, which forms a basin for slurry retention, as shown in Fig. 1 and Fig. 2, respectively. Incised impoundments dispose of slurry in an excavated area below the natural surface and do not utilize a significant embankment for slurry retention, see Fig. 3.

FIG. 1Â Cross Sectional Depiction of a Cross-Valley Refuse Impounding Feature

FIG. 2Â Cross Sectional Depiction of a Diked Refuse Impounding Feature

FIG. 3Â Cross Sectional Depiction of an Incised Refuse Impounding Feature

1.9.5 Non-Impounding Refuse Structuresâ€"These structures may contain slurry that has been dewatered and stabilized prior to disposal. Non-impounding slurry cells are used to dispose of fine refuse. Methods that significantly reduce the water content of fine coal refuse may allow a refuse structure to avoid being classified as an impoundment.

1.10 ERMLâ€"This practice addresses locations where monitoring and sampling (such as water, air, soil sampling, and subsidence or air blasting monitoring) has occurred, is occurring, or is planned.

1.11 Postmining Land Usesâ€"This practice describes data required to locate and identify postmining land uses for surface coal mining and reclamation operations. Postmining land use may include cropland, pasture/hayland, grazing land, forest, residential, fish and wildlife habitat, developed water resources, public utilities, industrial/commercial, and recreation.

1.12Â This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Document History

ASTM D7780-20
November 1, 2020
Standard Practice for Minimum Geospatial Data for Representing Coal Mining Features
1.1Â This practice defines a set of terms, procedures, and data required to define the accurate location and description of the minimum geospatial data for surface coal mining operations (CMO),...
January 1, 2012
Standard Practice for Geospatial Data for Representing Coal Mining Features
1.1 This practice defines a set of terms, procedures, and data required to define the accurate location and description of geospatial data for surface coal mining operations (CMO), underground coal...
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