Okla. Admin. Code § 252:515-11-2

Current through Vol. 41, No. 19, June 17, 2024

Section 252:515-11-2 - Liner design

(a)C&D landfills. Waste disposal areas of new C&D landfills, and expansions of waste disposal areas of existing C&D landfills constructed after the effective date of this Chapter, shall, as a minimum, be constructed with:

(1) a reconstructed clay liner meeting the requirements of Part 3 of this Subchapter; or

(2) an in-situ liner meeting the requirements of Part 7 of this Subchapter.

(b)MSWLFs, NHIW landfills and other land disposal facilities. The following shall be constructed with a composite liner composed of a reconstructed clay liner meeting the requirements of Part 3 of this Subchapter overlain with a flexible membrane liner (FML) meeting the requirements of Part 5 of this Subchapter:

(1) waste disposal areas of new MSWLFs, NHIW landfills and other land disposal facilities; and

(2) waste disposal areas of active MSWLFs, NHIW landfills and other land disposal facilities constructed after the effective date of this Chapter.

(c)Alternative liner designs for MSWLFs, NHIW landfills and other land disposal facilities.

(1) An alternative liner design for MSWLFs, NHIW landfills and other land disposal facilities may be approved by the DEQ if it ensures the concentration values listed in Appendix B will not be exceeded in the groundwater monitoring system.

(2) Requests for alternative liner designs shall include:

(A) the hydrogeologic characteristics of the site and surrounding land;

(B) the climatic factors of the area;

(C) the volume, physical and chemical characteristics of the anticipated leachate;

(D) information on slope stability; and

(E) the nature and anticipated volume of waste to be disposed.

(d)Small MSWLF exemption. MSWLFs that receive less than 20 tons of solid waste daily, based on an annual average, and with no evidence of groundwater contamination may be constructed with a less stringent alternative liner design, subject to DEQ approval.

(1)Climatological conditions. The area to be served by the MSWLF must have no practicable waste management alternative and the MSWLF must be located in an area that annually receives less than or equal to 25 inches of precipitation.

(2)Waste management plan. A waste management plan to guarantee that entities using the MSWLF will institute programs to reduce toxicity of the solid waste to be disposed must be developed.

(3)Waste diversion and recycling. The waste management plan must at least include yard waste diversion and composting, paper recycling, and waste oil recycling.

Okla. Admin. Code § 252:515-11-2

Added at 20 Ok Reg 1151, eff 6-1-03