La. Admin. Code tit. 33 § VII-10533

Current through Register Vol. 50, No. 11, November 20, 2024

Section VII-10533 - Project Specifications

A. Civil engineering projects may be approved by the administrative authority on a case-by-case basis. Calculations and/or designs shall be certified by a professional engineer registered in the state of Louisiana, as determined by the administrative authority. Project requests shall include a description of the materials to be replaced and the engineering properties (e.g., strength, permeability, etc.), of the waste tires and/or waste tire material that demonstrate comparable or improved performance to conventional materials. Unless project specifications require otherwise or an alternate design is specified by a professional engineer and approved by the administrative authority, the following requirements shall be met.

1. Landfill Leachate Systems

a. A maximum thickness of 12 inches of tire material shall be used unless otherwise demonstrated by the design engineer. However, in no case shall the thickness of tire material exceed 24 inches.

b. Tire chips shall be separated from geomembranes by a minimum of 12 inches earthen material or as approved in the facilitys permit.

2. Gas Collection Systems

a. Tire material may be used to backfill a trench in which pipe associated with the gas collection system is laid.

b. The trench may be no larger than twice the diameter of the pipe or as specified by the design engineer.

3. Bulkhead Backfill/Lightweight Fill. Waste tire material used in bulkhead or lightweight fill applications shall provide comparable or improved performance compared to conventional material.

4. Slope Stabilization/Erosion Control

a. Tire material may be used to control erosion. However, tire material may only be used to rebuild a slope no less than 4(Horizontal):1(Vertical).

b. No more than 6 inches of waste tire material may be placed at the top of the slope and a maximum of 18 inches at the toe, unless the design engineer can demonstrate that additional waste tire material is needed to meet the intended design criteria.

B. Other Projects. A request for other projects shall contain engineering drawings and/or supporting calculations demonstrating compliance with Subsection A of this Section. Projects shall provide for the efficient and proper use of waste tires and/or waste tire material in a manner that does not constitute disposal. Project standards will be determined on a case-by-case basis.

La. Admin. Code tit. 33, § VII-10533

Promulgated by the Department of Environmental Quality, Office of Solid and Hazardous Waste, Solid Waste Division, LR 20:1001 (September 1994), amended by the Office of Environmental Assessment, Environmental Planning Division, LR 26:2780 (December 2000), LR 27:831 (June 2001), LR 27:2228 (December 2001), LR 29:2780 (December 2003), amended by the Office of the Secretary, Legal Affairs Division, LR 31:2504 (October 2005), LR 33:91 (January 2007), LR 33:2160 (October 2007), Promulgated by the Department of Environmental Quality, Office of the Secretary, Legal Division, LR 42266 (2/1/2016).

AUTHORITY NOTE: Promulgated in accordance with R.S. 30:2411-2422.