Oklahoma Administrative Code
Title 460 - Department of Mines
Chapter 30 - Coal Combustion By-Product Placement Rules and Regulations
Subchapter 3 - CCB Placement Applications
Section 460:30-3-3 - Environmental resources information: Hydrologic

Universal Citation: OK Admin Code 460:30-3-3

Current through Vol. 42, No. 1, September 16, 2024

(a) Surface water information.

(1) Each application shall contain information on location, chemical composition, sources, and use of surface water resources within and adjacent to the proposed mining permit area, including, but not limited to ponds, impoundments, and open pits.

(2) Stream channels within the mining permit area shall be described according to classification, flow rate, source of discharge, and chemical analysis.

(3) The physical and chemical composition shall include the following information:
(A) Ash site surface water testing parameters: initial
(i) pH

(ii) TDS

(iii) TSS

(iv) Specific conductance

(v) Sulfates

(vi) Temperature

(vii) Total iron

(viii) Total manganese

(ix) Arsenic

(x) Barium

(xi) Cadmium

(xii) Chromium (total)

(xiii) Lead

(xiv) Fluoride

(xv) Selenium

(xvi) Flow in streams, flow rate of discharges of impoundments

(xvii) Impoundment freeboard

(xviii) Impoundment depth

(xix) Alkalinity

(xx) Chloride

(xxi) Nitrate

(xxii) Nitrite

(xxiii) Ammonia

(xxiv) Aluminum

(xxv) Calcium

(xxvi) Sodium

(xxvii) Additional parameters may be required by the Department based on conditions at the site.

(B) CKD site surface water testing parameters: initial
(i) Surface water elevation

(ii) Temperature

(iii) pH

(iv) Specific conductance

(v) TDS

(vi) Chloride

(vii) Sulfates

(viii) Potassium

(ix) Sodium

(x) Antimony

(xi) Arsenic

(xii) Barium

(xviii) Beryllium

(xiv) Cadmium

(xv) Chromium (total)

(xvi) Lead

(xvii) Mercury

(xviii) Nickel

(xix) Selenium

(xx) Silver

(xxi) Thallium

(xxii) Alkalinity

(xxiii) Aluminum

(xxiv) Calcium

(xxv) TSS

(xxvi) Additional parameters may be required by the Department based on conditions at the site.

(b) Ground water information

(1) Each application shall contain information on the ground water resources within the permit area. Each application shall contain a minimum of 12 background samples from each monitoring point taken at monthly intervals prior to placement of coal ash.

(2) The physical and chemical composition shall include the following information:
(A) Ash site ground water testing parameters: initial
(i) pH

(ii) TDS

(iii) Specific conductance

(iv) Sulfates

(v) Temperature

(vi) Total iron

(vii) Total manganese

(viii) Arsenic

(ix) Barium

(x) Cadmium

(xi) Chromium (total)

(xii) Lead

(xiii) Fluoride

(xiv) Selenium

(xv) Depth to water

(xvi) Alkalinity

(xvii) Chloride

(xviii) Nitrate

(xix) Nitrite

(xx) Ammonia

(xxi) Aluminum

(xxii) Calcium

(xxiii) Sodium

(xxiv) TSS

(xxv) Additional parameters may be required by the Department based on conditions at the site.

(B) CKD site ground water testing parameters: initial
(i) Depth to water

(ii) Temperature

(iii) pH

(iv) Specific conductance

(v) TDS

(vi) Chloride

(vii) Sulfates

(viii) Potassium

(ix) Sodium

(x) Antimony

(xi) Arsenic

(xii) Barium

(xiii) Beryllium

(xiv) Cadmium

(xv) Chromium (total)

(xvi) Lead

(xvii) Mercury

(xviii) Nickel

(xix) Selenium

(xx) Silver

(xxi) Thallium

(xxii) Alkalinity

(xxiii) Aluminum

(xxiv) Calcium

(xxv) TSS

(xxvi) Additional parameters may be required by the Department based on conditions at the site.

(3) Monitoring wells shall be placed up-gradient and down-gradient of the placement area and noted accordingly in the mining permit application.
(A) There shall be at least one monitoring well at a point hydraulically upgradient from the CCB placement area in the direction of increasing static head that is capable of providing representative data of groundwater not affected by placement of CCB, except when the CCB placement area occupies the most upgradient position in the flow system. In that case, sufficient downgradient monitoring points shall be placed to determine the extent of adverse effects on groundwater from the CCB placement.

(B) There shall be at least three (3) groundwater monitoring points hydraulically downgradient in the direction of decreasing static head from the area in which CCB has been or will be placed. The Department at its discretion may accept two (2) downgradient monitoring points on small sites that can be represented by two (2) points. The Department may allow one (1) or more springs, seeps and mine discharges to substitute for wells if these points are hydraulically downgradient from the area in which CCB has been or will be placed and if these points will be as effective or more effective at monitoring the CCB placement area than wells. Downgradient monitoring points must be hydrologically connected to the area of CCB placement, and must be located and constructed so as to detect any chemical influence of the CCB placement area. The downgradient points must be proximate enough to detect contaminants within the life of the placement operation. All monitoring points must be developed and protected in a manner approved by the Department. In addition to groundwater monitoring points the Department may require downstream monitoring where downstream monitoring is likely to show any chemical influence that the CCB placement area may have on the hydrologic regime.

(C) Monitoring wells shall be located within 200 feet of the CCB placement area, unless another location is approved by the Department.

(4) Logs and cross sections of wells drilled for collection of ground water information and as monitoring wells shall be included in the application.

(5) An inventory of the chemical composition and completion data available from other reporting agencies or other sources for all ground water wells within one-half mile of the permit area boundary.

Added at 20 Ok Reg 2819, eff 8-26-03; Amended at 28 Ok Reg 2371, eff 9-11-11

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