Okla. Stat. tit. 45, § 45-752: Waste piles

The operator shall design, locate, construct, operate, maintain,

enlarge, modify and remove or abandon, in accordance with the

standards and criteria developed by the Department, all existing and

new coal mine waste piles consisting of mine wastes, tailings, coal

processing wastes, or other liquid and solid wastes, and used either

temporarily or permanently as dams or embankments.