Oklahoma Administrative Code › Title 460 - Department of Mines › Chapter 20 - The Permanent Regulations Governing the Coal Reclamation Act of 1979 › Subchapter 31 - Underground Mining Permit Applications: Minimum Requirements for Reclamation › Section 460:20-31-7 - Hydrologic information

Current through Vol. 41, No. 20, July 1, 2024
(a)
Sampling and analysis.
All water-quality analyses performed to
				meet the requirements of this Section shall be conducted according to the
				methodology in the 15th edition of "Standard Methods for the Examination of
				Water and Wastewater," which is incorporated by reference, or the methodology
				in 40 CFR Parts 136 and 434. Water-quality sampling performed to meet the
				requirements of this Section shall be conducted according to either methodology
				listed above when feasible. "Standard Methods for the Examination of Water and
				Wastewater" is a joint publication of the American Public Health Association,
				the American Water Works Association, and the Water Pollution Control
				Federation and is available from the American Public Health Association, 1015
				Fifteenth Street, NW., Washington, DC 20036. This document is also available
				for inspection at the Office of the Federal Register Information Center, Room
				8301, 1100 L Street, NW., Washington, D.C.; at the Office of the OSM
				Administrative Record, U.S. Department of the Interior, Room 5315, 1100 L
				Street, NW., Washington, D.C.; at the OSM Eastern Field Operations U.S.
				Department of the Interior, Building 10, Parkway Center, Pittsburgh, Pa.; and
				at the OSM Western Field Operations, U.S. Department of the Interior, Brooks
				Tower, 1020 15th Street, Denver, Colo. This incorporation by reference was
				approved by the Director of the Federal Register on October 26, 1983. This
				document is incorporated as it exists on the date of the approval, and a notice
				of any change in it will be published in the Federal Register.
(b)
Baseline information.
The
				application shall include the following baseline hydrologic information, and
				any additional information required by the Department.
(1)
Ground-water information.
The location and ownership for the permit and adjacent areas of existing wells,
				springs, and other ground-water resources, seasonal quality and quantity of
				ground water, and usage. Water-quality descriptions shall include, at a
				minimum, total dissolved solids or specific conductance corrected to 25°C,
				pH, total iron, and total manganese. Ground-water quantity descriptions shall
				include, at a minimum, approximate rates of discharge or usage and depth to the
				water in the coal seam, and each water-bearing stratum above and potentially
				impacted stratum below the coal seam.
(2)
Surface-water information.
The name, location, ownership, and description of all surface-water bodies such
				as streams, lakes, and impoundments, the location of any discharge into any
				surface-water body in the proposed permit and adjacent areas, and information
				on surface-water quality and quantity sufficient to demonstrate seasonal
				variation and water usage. Water-quality descriptions shall include, at a
				minimum, baseline information on total suspended solids, total dissolved solids
				or specific conductance corrected to 25°C, pH, total iron, and total
				manganese. Baseline acidity and alkalinity information shall be provided if
				there is a potential for acid drainage from the proposed mining operation.
				Water-quantity descriptions shall include, at a minimum, baseline information
				on seasonal flow rates.
(3)
Supplemental information.
If the determination of the probable
				hydrologic consequences (PHC) required by Subsection (e) of this Section
				indicates that adverse impacts on or off the proposed permit area may occur to
				the hydrologic balance, or that acid-forming or toxic-forming material is
				present that may result in the contamination of ground-water or surface-water
				supplies, then information supplemental to that required under Subsections
				(b)(1) and (b)(2) of this Section shall be provided to evaluate such probable
				hydrologic consequences and to plan remedial and reclamation activities. Such
				supplemental information may be based upon drilling, aquifer tests,
				hydrogeologic analysis of the water-bearing strata, flood flows, or analysis of
				other water-quality or quantity characteristics.