1. (a) CCR unit. A subsurface investigation meeting the requirements of this Subchapter shall be completed prior to submitting a permit application for:

   1. (1) a new CCR unit; or
   2. (2) a lateral expansion of an existing CCR unit.
2. (b) Part of permit application. The results from the subsurface investigation shall be included as part of the permit application.
3. (c) Exception. Except as provided by OAC 252:517-7-2(c), a permit modification for a lateral expansion of a CCR unit may not require a subsurface investigation if the proposed expansion area has already had a subsurface investigation performed that meets the requirements of this Subchapter.

Added at 33 Ok Reg 1469, eff 9-15-16