NR 664.0551(5)(d)3.e.e. Hydrogeological and other relevant environmental conditions at the facility which may influence the migration of any potential or actual releases.

NR 664.0551(5)(d)4.4. Long-term care requirements as necessary to protect human health and the environment, to include, for areas where wastes will remain in place, monitoring and maintenance activities and the frequency with which the activities shall be performed to ensure the integrity of any cap, final cover or other containment system.

NR 664.0551(6)(6) The department shall document the rationale for designating CAMUs and shall make the documentation available to the public.

NR 664.0551(7)(7) Incorporation of a CAMU into an existing license shall be approved by the department according to the procedures for department-initiated license modifications under s. NR 670.041, or according to the license modification procedures of s. NR 670.042.

NR 664.0551(8)(8) The designation of a CAMU does not change the department’s existing authority to address clean-up levels, media-specific points of compliance to be applied to remediation at a facility or other remedy selection decisions.

NR 664.0552(1)(1) To implement remedies under s. NR 664.0101, ss. 291.37 and 291.97 (1), Stats., or 42 USC 6928 (h) or to implement remedies at a licensed facility that is not subject to s. NR 664.0101, the department may designate an area at the facility as a corrective action management unit under the requirements in this section. In this section, “corrective action management unit” or “CAMU” means an area within a facility that is used only for managing CAMU-eligible wastes for implementing corrective action or cleanup at the facility. A CAMU shall be located within the contiguous property under the control of the owner or operator where the wastes to be managed in the CAMU originated. One or more CAMUs may be designated at a facility.

NR 664.0552(1)(a)1.1. All solid and hazardous wastes, and all media (including groundwater, surface water, soils and sediments) and debris, that are managed for implementing cleanup. As-generated wastes (either hazardous or non-hazardous) from ongoing industrial operations at a site are not CAMU-eligible wastes.

NR 664.0552(1)(a)2.a.a. The wastes are hazardous wastes found during cleanup in intact or substantially intact containers, tanks or other non-land-based units found above ground, unless the wastes are first placed in the tanks, containers or non-land-based units as part of cleanup, or the containers or tanks are excavated during the course of cleanup.

NR 664.0552(1)(a)3.3. Notwithstanding subd. 1., where appropriate, as-generated non-hazardous waste may be placed in a CAMU, where the waste is being used to facilitate treatment or the performance of the CAMU.

NR 664.0552(1)(b)(b) The department may prohibit, where appropriate, the placement of waste in a CAMU where the department has or receives information that the wastes have not been managed in compliance with applicable land disposal treatment standards of ch. NR 668, or applicable unit design requirements of this chapter or applicable unit design requirements of ch. NR 665, or that non-compliance with other applicable requirements of chs. NR 660 to 673 likely contributed to the release of the waste.

NR 664.0552(1)(c)1.1. The placement of bulk or noncontainerized liquid hazardous waste or free liquids contained in hazardous waste, whether or not sorbents have been added, in any CAMU is prohibited except where placement of the wastes facilitates the remedy selected for the waste.

NR 664.0552(1)(c)2.2. The requirements in s. NR 664.0314 (3) for placement of containers holding free liquids in landfills apply to placement in a CAMU except where placement facilitates the remedy selected for the waste.

NR 664.0552(1)(c)3.3. The placement of any liquid which is not a hazardous waste in a CAMU is prohibited unless the placement facilitates the remedy selected for the waste or a demonstration is made pursuant to s. NR 664.0314 (5).

NR 664.0552(1)(c)4.4. The absence or presence of free liquids in either a containerized or a bulk waste shall be determined in accordance with s. NR 664.0314 (2). Sorbents used to treat free liquids in CAMUs shall meet the requirements of s. NR 664.0314 (4).

NR 664.0552(1)(e)(e) Consolidation or placement of CAMU-eligible wastes into or within a CAMU does not constitute creation of a unit subject to minimum technology requirements.

NR 664.0552(2)(a)(a) The department may designate a regulated unit (as defined in s. NR 664.0090 (1) (b)) as a CAMU, or may incorporate a regulated unit into a CAMU, if all of the following apply:

NR 664.0552(2)(a)2.2. Inclusion of the regulated unit will enhance implementation of effective, protective and reliable remedial actions for the facility.