Okla. Admin. Code § 460:30-5-10
Diversions shall be constructed in a workmanlike manner that minimizes contribution of suspended solids to surface water flow outside the mining permit area. Permanent diversions shall be constructed at a minimum with a permanent and stable vegetative cover. Alternative designs may be approved by the Department on a case-by-case basis.
Added at 20 Ok Reg 2819, eff 8-26-03