NR 664.0573(9) (9) The drip pad surface shall be cleaned thoroughly in a manner and frequency such that accumulated residues of hazardous waste or other materials are removed, with residues being properly managed as hazardous waste, so as to allow weekly inspections of the entire drip pad surface without interference or hindrance from accumulated residues of hazardous waste or other materials on the drip pad. The owner or operator shall document the date and time of each cleaning and the cleaning procedure used in the facility’s operating log. The owner or operator shall determine if the residues are hazardous per s. NR 662.011 and, if so, shall manage them under chs. NR 661 to 668, 670 and s. 291.05 (1), Stats.

NR 664.0573(10) (10) Drip pads shall be operated and maintained in a manner to minimize tracking of hazardous waste or hazardous waste constituents off the drip pad as a result of activities by personnel or equipment.

NR 664.0573(11) (11) After being removed from the treatment vessel, treated wood from pressure and non-pressure processes shall be held on the drip pad until drippage has ceased. The owner or operator shall maintain records sufficient to document that all treated wood is held on the pad following treatment in accordance with this requirement.

NR 664.0573(12) (12) Collection and holding units associated with run-on and run-off control systems shall be emptied or otherwise managed as soon as possible after storms to maintain design capacity of the system.

NR 664.0573(13) (13) Throughout the active life of the drip pad and as specified in the license, if the owner or operator detects a condition that may have caused or has caused a release of hazardous waste, the condition shall be repaired within a reasonably prompt period of time following discovery, in accordance with all of the following procedures:

NR 664.0573(13)(a) (a) Upon detection of a condition that may have caused or has caused a release of hazardous waste (e.g., upon detection of leakage in the leak detection system), the owner or operator shall do all of the following:

NR 664.0573(13)(a)1. 1. Enter a record of the discovery in the facility operating log.

NR 664.0573(13)(a)2. 2. Immediately remove the portion of the drip pad affected by the condition from service.

NR 664.0573(13)(a)3. 3. Determine what steps must be taken to repair the drip pad and clean up any leakage from below the drip pad, and establish a schedule for accomplishing the repairs.

NR 664.0573(13)(a)4. 4. Immediately after discovery of the condition, notify the department of the condition and, within 10 working days, provide written notice to the department with a description of the steps that will be taken to repair the drip pad and clean up any leakage, and the schedule for accomplishing this work.

NR 664.0573(13)(b) (b) The department will review the information submitted, make a determination regarding whether the pad must be removed from service completely or partially until repairs and clean up are complete and notify the owner or operator of the determination and the underlying rationale in writing.

NR 664.0573(13)(c) (c) Upon completing all repairs and clean up, the owner or operator shall notify the department in writing and provide a certification signed by an independent, qualified registered professional engineer, that the repairs and clean up have been completed according to the written plan submitted in accordance with par. (a) 4.

NR 664.0573(14) (14) Should a license be necessary, the department will specify in the license all design and operating practices that are necessary to ensure that the requirements of this section are satisfied.

NR 664.0573(15) (15) The owner or operator shall maintain, as part of the facility operating log, documentation of past operating and waste handling practices. This shall include identification of preservative formulations used in the past, a description of drippage management practices and a description of treated wood storage and handling practices.

NR 664.0573 History History: CR 05-032: cr. Register July 2006 No. 607, eff. 8-1-06; CR 16-007: am. (1) (d) 2., (7) Register July 2017 No. 739, eff. 8-1-17.

NR 664.0574 NR 664.0574 Inspections.

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.