La. Admin. Code tit. 33 § V-2521

Current through Register Vol. 50, No. 9, September 20, 2024

Section V-2521 - Closure and Post-Closure Care

A. At final closure of the landfill or upon closure of any cell, the owner or operator must cover the landfill or cell with a final cover designed and constructed to:

1. provide long-term minimization of migration of liquids through the closed landfill;

2. function with minimum maintenance;

3. promote drainage and minimize erosion or abrasion of the cover;

4. accommodate settling and subsidence so that the cover's integrity is maintained; and

5. have a permeability less than or equal to the permeability of any bottom liner system or natural subsoils present.

B. After final closure, the owner or operator must comply with all post-closure requirements contained in LAC 33:V.3519-3527, including maintenance and monitoring throughout the post-closure care period (specified in the permit under LAC 33:V.3521.A.1). The owner or operator must:

1. maintain the integrity and effectiveness of the final cover, including making repairs to the cap as necessary to correct the effects of settling, subsidence, erosion, or other events;

2. maintain and monitor the leak detection system in accordance with LAC 33:V.2503.L.4.d, 2503.L.5, and 2507.D, where such a system is present between double liner systems and comply with all other applicable leak detection system requirements of LAC 33:V.Subpart 1;

3. continue to operate the leachate collection and removal system until leachate is no longer detected;

4. maintain and monitor the groundwater monitoring system and comply with all other applicable requirements of LAC 33:V.Chapter 33;

5. prevent run-on and run-off from eroding or otherwise damaging the final cover; and

6. protect and maintain surveyed benchmarks used in complying with LAC 33:V.Chapter 33.

C. During the post-closure care period, if liquid leaks into a leak detection system installed under LAC 33:V.3305, the owner or operator must notify the Office of Environmental Services of the leak in writing within seven days after detecting the leak.

La. Admin. Code tit. 33, § V-2521

Promulgated by the Department of Environmental Quality, Office of Solid and Hazardous Waste, Hazardous Waste Division, LR 10:200 (March 1984), amended LR 10:496 (July 1984), LR 20:1000 (September 1994), LR 21:266 (March 1995), LR 21:944 (September 1995), amended by the Office of Environmental Assessment, Environmental Planning Division, LR 26:2481 (November 2000), amended by the Office of the Secretary, Legal Affairs Division, LR 33:2112 (October 2007).

AUTHORITY NOTE: Promulgated in accordance with R.S. 30:2180 et seq.