Wisconsin Administrative Code
Department of Natural Resources
NR 600-699 - Environmental Protection - Hazardous Waste Management
Chapter NR 664 - Hazardous Waste Treatment, Storage And Disposal Facility Standards
Subchapter N - Landfills
Section NR 664.0310 - Closure and long-term care

Universal Citation: WI Admin Code ยง NR 664.0310

Current through August 26, 2024

(1) At final closure of the landfill or upon closure of any cell, the owner or operator shall cover the landfill or cell with a final cover designed and constructed to do all of the following:

(a) Provide long-term minimization of migration of liquids through the closed landfill.

(b) Function with minimum maintenance.

(c) Promote drainage and minimize erosion or abrasion of the cover.

(d) Accommodate settling and subsidence so that the cover's integrity is maintained.

(e) Have a permeability less than or equal to the permeability of any bottom liner system or natural subsoils present.

(2) After final closure, the owner or operator shall comply with all long-term care requirements contained in ss. NR 664.0117 to 664.0120, including maintenance and monitoring throughout the long-term care period (specified in the operating license under s. NR 664.0117). The owner or operator shall do all of the following:

(a) 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.

(b) Continue to operate the leachate collection and removal system until leachate is no longer detected.

(c) Maintain and monitor the leak detection system in accordance with ss. NR 664.0301(3) (c) 4. and (d) and 664.0303(3), and comply with all other applicable leak detection system requirements of this chapter.

(d) Maintain and monitor the groundwater monitoring system and comply with all other applicable requirements of subch. F.

(e) Prevent run-on and run-off from eroding or otherwise damaging the final cover.

(f) Protect and maintain surveyed benchmarks used in complying with s. NR 664.0309.

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