Oklahoma Administrative Code (Last Updated: March 11, 2021) |
TITLE 252. Department of Environmental Quality |
Chapter 517. Disposal of Coal Combustion Residuals from Electric Utilities |
Subchapter 3. Permit Provisions and Applications |
Part 3. REQUIRED MAPS AND DRAWINGS |
SECTION 252:517-3-42. Site-specific cross sections
Latest version.
- (a) Required map. The permit application shall include two site-specific cross sections constructed from subsurface borehole logs and other site-specific information, such as water well logs, oil and gas well logs, outcrops at or near the site, and geophysical surveys.(b) Orientation. The first cross section shall be oriented parallel to the dip of the underlying strata and the second oriented perpendicular to the dip of the strata. If this is not possible, the cross- sections shall be oriented at 90 degrees from each other.(c) Required details. Each cross section shall include:(1) the borehole logs and other sources of information displayed relative to mean sea level on the cross section;(2) the depth, thickness and areal extent of each stratigraphic unit;(3) lithology of significant formations or strata, and unconsolidated sediment type;(4) structural features (faults and folds);(5) stratigraphic contact between formations or strata, and unconsolidated sediments;(6) zones of hydraulic conductivity greater than 1 x 10-3 cm/sec;(7) fracture zones;(8) potentiometric surfaces of all confined and unconfined saturated zones;(9) location, depth and producing zone of water wells that could be used in the construction of the cross section;(10) the surface upon which the waste will be placed;(11) soils or strata encountered by the boreholes suitable for use as liner material;(12) intervals and results of both in-situ and laboratory hydraulic conductivity tests;(13) surface water drainage features, such as: dikes, levees, or trenches;(14) the existing ground surface and final cover;(15) monitor wells or piezometers; and(16) a legend that includes vertical and horizontal scales and a map showing the location of the boreholes and other information used to construct the cross section.