Oklahoma Administrative Code › Title 460 - Department of Mines › Chapter 20 - The Permanent Regulations Governing the Coal Reclamation Act of 1979 › Subchapter 27 - Surface Mining Permit Applications: Minimum Requirements for Reclamation and Operation Plans › Section 460:20-27-11 - Hydrologic information

Current through Vol. 41, No. 20, July 1, 2024
(a)
Sampling and analysis methodology.
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 15th 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. Groundwater quantity descriptions shall
				include, at a minimum, approximate rates of discharge or usage and depth to the
				water in the coal seam, and each waterbearing 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 (f) 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 (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.