NR 664.0574(1) (1) During construction or installation, liners and cover systems (for example, membranes, sheets or coatings) shall be inspected for uniformity, damage and imperfections (for example, holes, cracks, thin spots or foreign materials). Immediately after construction or installation, liners shall be inspected and certified as meeting the requirements of s. NR 664.0573 by a qualified professional engineer. This certification shall be maintained at the facility as part of the facility operating record. After installation, liners and covers shall be inspected to ensure tight seams and joints and the absence of tears, punctures or blisters.

NR 664.0574(2) (2) While a drip pad is in operation, it shall be inspected weekly and after storms to detect evidence of any of the following:

NR 664.0574(2)(a) (a) Deterioration, malfunctions or improper operation of run-on and run-off control systems.

NR 664.0574(2)(b) (b) The presence of leakage in and proper functioning of the leak detection system.

NR 664.0574(2)(c) (c) Deterioration or cracking of the drip pad surface.

NR 664.0574 Note Note: See s. NR 664.0573(13) for remedial action required if deterioration or leakage is detected.

NR 664.0574 History History: CR 05-032: cr. Register July 2006 No. 607, eff. 8-1-06; CR 16-007: am. (1) Register July 2017 No. 739, eff. 8-1-17.

NR 664.0575 NR 664.0575 Closure.

NR 664.0575(1) (1) At closure, the owner or operator shall remove or decontaminate all waste residues, contaminated containment system components (such as pads and liners), contaminated subsoils, and structures and equipment contaminated with waste and leakage, and manage them as hazardous waste.

NR 664.0575(2) (2) If, after removing or decontaminating all residues and making all reasonable efforts to effect removal or decontamination of contaminated components subsoils, structures and equipment as required in sub. (1), the owner or operator finds that not all contaminated subsoils can be practicably removed or decontaminated, the owner or operator shall close the facility and perform long-term care in accordance with closure and long-term care requirements that apply to landfills (s. NR 664.0310). For licensed units, the requirement to have a license continues throughout the long-term care period. In addition, for the purpose of closure, long-term care and financial responsibility, such a drip pad is then considered to be landfill, and the owner or operator shall meet all of the requirements for landfills specified in subchs. G and H.

NR 664.0575(3) (3) 

NR 664.0575(3)(a) (a) The owner or operator of an existing drip pad, as defined in s. NR 664.0570, that does not comply with the liner requirements of s. NR 664.0573 (2) (a) shall do both of the following:

NR 664.0575(3)(a)1. 1. Include in the closure plan for the drip pad under s. NR 664.0112 both a plan for complying with sub. (1) and a contingent plan for complying with sub. (2) in case not all contaminated subsoils can be practicably removed at closure.

NR 664.0575(3)(a)2. 2. Prepare a contingent long-term care plan under s. NR 664.0118 for complying with sub. (2) in case not all contaminated subsoils can be practicably removed at closure.

NR 664.0575(3)(b) (b) The cost estimates calculated under ss. NR 664.0112 and 664.0144 for closure and long-term care of a drip pad subject to this subsection shall include the cost of complying with the contingent closure plan and the contingent long-term care plan, but are not required to include the cost of expected closure under sub. (1).

NR 664.0575 History History: CR 05-032: cr. Register July 2006 No. 607, eff. 8-1-06.

subch. X of ch. NR 664 Subchapter X — Miscellaneous Units

NR 664.0600 NR 664.0600 Applicability. The requirements in this subchapter apply to owners and operators of facilities that treat, store or dispose of hazardous waste in miscellaneous units, except as s. NR 664.0001 provides otherwise.

NR 664.0600 History History: CR 05-032: cr. Register July 2006 No. 607, eff. 8-1-06.

NR 664.0601 NR 664.0601 Environmental performance standards. A miscellaneous unit shall be located, designed, constructed, operated, maintained and closed in a manner that will ensure protection of human health and the environment. Licenses for miscellaneous units shall contain terms and provisions necessary to protect human health and the environment, including, as appropriate, design and operating requirements, detection and monitoring requirements and requirements for responses to releases of hazardous waste or hazardous constituents from the unit. License terms and provisions shall include those requirements of subchs. I to O and subchs. AA to CC, ch. NR 670, 40 CFR part 63 subpart EEE and ch. NR 815 that are appropriate for the miscellaneous unit being licensed. Protection of human health and the environment includes all of the following:

NR 664.0601(1) (1) Prevention of any releases that may have adverse effects on human health or the environment due to migration of waste constituents in the groundwater or subsurface environment, considering all of the following:

NR 664.0601(1)(a) (a) The volume and physical and chemical characteristics of the waste in the unit, including its potential for migration through soil, liners or other containing structures.

NR 664.0601(1)(b) (b) The hydrologic and geologic characteristics of the unit and the surrounding area.

NR 664.0601(1)(c) (c) The existing quality of groundwater, including other sources of contamination and their cumulative impact on the groundwater.

NR 664.0601(1)(d) (d) The quantity and direction of groundwater flow.

NR 664.0601(1)(e) (e) The proximity to and withdrawal rates of current and potential groundwater users.

NR 664.0601(1)(f) (f) The patterns of land use in the region.

NR 664.0601(1)(g) (g) The potential for deposition or migration of waste constituents into subsurface physical structures, and into the root zone of food-chain crops and other vegetation.

NR 664.0601(1)(h) (h) The potential for health risks caused by human exposure to waste constituents.