Chapter NR 665

NR 665.0303(3)(a) (a) Do all of the following:

NR 665.0303(3)(a)1. 1. Assess the source of liquids and amounts of liquids by source.

NR 665.0303(3)(a)2. 2. Conduct a fingerprint, hazardous constituent or other analyses of the liquids in the leak detection system to identify the source of liquids and possible location of any leaks, and the hazard and mobility of the liquid.

NR 665.0303(3)(a)3. 3. Assess the seriousness of any leaks in terms of potential for escaping into the environment.

NR 665.0303(3)(b) (b) Document why the assessments are not needed.

NR 665.0303 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 665.0304 NR 665.0304 Monitoring and inspection.

NR 665.0304(1) (1) An owner or operator required to have a leak detection system under s. NR 665.0301 (1) shall record the amount of liquids removed from each leak detection system sump at least once each week during the active life and closure period.

NR 665.0304(2) (2) After the final cover is installed, the amount of liquids removed from each leak detection system sump shall be recorded at least monthly. If the liquid level in the sump stays below the pump operating level for 2 consecutive months, the amount of liquids in the sumps shall be recorded at least quarterly. If the liquid level in the sump stays below the pump operating level for 2 consecutive quarters, the amount of liquids in the sumps shall be recorded at least semi-annually. If at any time during the long-term care period the pump operating level is exceeded at units on quarterly or semi-annual recording schedules, the owner or operator shall return to monthly recording of amounts of liquids removed from each sump until the liquid level again stays below the pump operating level for 2 consecutive months.

NR 665.0304(3) (3) “Pump operating level” is a liquid level proposed by the owner or operator and approved by the department based on pump activation level, sump dimensions and level that avoids backup into the drainage layer and minimizes head in the sump. The timing for submission and approval of the proposed “pump operating level” will be in accordance with s. NR 665.0302 (1).

NR 665.0304 History History: CR 05-032: cr. Register July 2006 No. 607, eff. 8-1-06.

NR 665.0309 NR 665.0309 Surveying and recordkeeping. The owner or operator of a landfill shall maintain both of the following items in the operating record required in s. NR 665.0073:

NR 665.0309(1) (1) On a map, the exact location and dimensions, including depth, of each cell with respect to permanently surveyed benchmarks.

NR 665.0309(2) (2) The contents of each cell and the approximate location of each hazardous waste type within each cell.

NR 665.0309 History History: CR 05-032: cr. Register July 2006 No. 607, eff. 8-1-06.

NR 665.0310 NR 665.0310 Closure and long-term care.

NR 665.0310(1) (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:

NR 665.0310(1)(a) (a) Provide long-term minimization of migration of liquids through the closed landfill.

NR 665.0310(1)(b) (b) Function with minimum maintenance.

NR 665.0310(1)(c) (c) Promote drainage and minimize erosion or abrasion of the cover.

NR 665.0310(1)(d) (d) Accommodate settling and subsidence so that the cover’s integrity is maintained.

NR 665.0310(1)(e) (e) Have a permeability less than or equal to the permeability of any bottom liner system or natural subsoils present.

NR 665.0310(2) (2) After final closure, the owner or operator shall comply with all long-term care requirements contained in ss. NR 665.0117 to 665.0120, including maintenance and monitoring throughout the long-term care period. The owner or operator shall do all of the following:

NR 665.0310(2)(a) (a) Maintain the integrity and effectiveness of the final cover, including making repairs to the cover as necessary to correct the effects of settling, subsidence, erosion or other events.

NR 665.0310(2)(b) (b) Maintain and monitor the leak detection system in accordance with ss. NR 664.0301 (3) (c) 4. and (d) and 665.0304 (2), and comply with all other applicable leak detection system requirements of this chapter.

NR 665.0310(2)(c) (c) Maintain and monitor the groundwater monitoring system and comply with all other applicable requirements of subch. F.

NR 665.0310(2)(d) (d) Prevent run-on and run-off from eroding or otherwise damaging the final cover.

NR 665.0310(2)(e) (e) Protect and maintain surveyed benchmarks used in complying with s. NR 665.0309.

NR 665.0310 History History: CR 05-032: cr. Register July 2006 No. 607, eff. 8-1-06.

NR 665.0312 NR 665.0312 Special requirements for ignitable or reactive waste.

NR 665.0312(1) (1) Except as provided in sub. (2) and s. NR 665.0316, ignitable or reactive waste may not be placed in a landfill, unless the waste and landfill meets all applicable requirements of ch. NR 668 and both of the following:

NR 665.0312(1)(a) (a) The resulting waste, mixture or dissolution of material no longer meets the definition of ignitable or reactive waste under s. NR 661.0021 or 661.0023.

NR 665.0312(1)(b) (b) Section NR 665.0017 (2) is complied with.

NR 665.0312(2) (2) Except for prohibited wastes which remain subject to treatment standards in subch. D of ch. NR 668, ignitable wastes in containers may be landfilled without meeting the requirements of sub. (1), provided that the wastes are disposed of in such a way that they are protected from any material or conditions which may cause them to ignite. At a minimum, ignitable wastes shall be disposed of in non-leaking containers which are carefully handled and placed so as to avoid heat, sparks, rupture or any other condition that might cause ignition of the wastes; shall be covered daily with soil or other non-combustible material to minimize the potential for ignition of the wastes and may not be disposed of in cells that contain or will contain other wastes which may generate heat sufficient to cause ignition of the waste.

NR 665.0312 History History: CR 05-032: cr. Register July 2006 No. 607, eff. 8-1-06; CR 19-082: am. (1) (a) Register August 2020 No. 776, eff. 9-1-20.

NR 665.0313 NR 665.0313 Special requirements for incompatible wastes. Incompatible wastes, or incompatible wastes and materials, (see ch. NR 665 Appendix V for examples) may not be placed in the same landfill cell, unless s. NR 665.0017 (2) is complied with.

NR 665.0313 History History: CR 05-032: cr. Register July 2006 No. 607, eff. 8-1-06; correction made under s. 13.92 (4) (b) 7., Stats., Register March 2013 No. 687.

NR 665.0314 NR 665.0314 Special requirements for bulk and containerized liquids.

NR 665.0314(1) (1) The placement of bulk or non-containerized liquid hazardous waste or hazardous waste containing free liquids (whether or not sorbents have been added) in any landfill is prohibited.

NR 665.0314(2) (2) Containers holding free liquids may not be placed in a landfill unless par. (a), (b), (c) or (d) applies:

NR 665.0314(2)(a) (a) All free-standing liquid is handled in one of the following ways:

NR 665.0314(2)(a)1. 1. It has been removed by decanting, or other methods.

NR 665.0314(2)(a)2. 2. It has been mixed with sorbent or solidified so that free-standing liquid is no longer observed.

NR 665.0314(2)(a)3. 3. It has been otherwise eliminated.

NR 665.0314(2)(b) (b) The container is very small, such as an ampule.

NR 665.0314(2)(c) (c) The container is designed to hold free liquids for use other than storage, such as a battery or capacitor.

NR 665.0314(2)(d) (d) The container is a lab pack as defined in s. NR 665.0316 and is disposed of in accordance with s. NR 665.0316.

NR 665.0314(3) (3) To demonstrate the absence or presence of free liquids in either a containerized or a bulk waste, the following test shall be used: Method 9095B (paint filter liquids test) as described in “Test Methods for Evaluating Solid Waste, Physical/Chemical Methods,” EPA SW-846, incorporated by reference in s. NR 660.11.

NR 665.0314(4) (4) The date for compliance with sub. (2) is July 1, 1985.

NR 665.0314(5) (5) Sorbents used to treat free liquids to be disposed of in landfills shall be nonbiodegradable. Nonbiodegradable sorbents are materials listed or described in par. (a); materials that pass one of the tests in par. (b) or materials that are determined by EPA to be nonbiodegradable through the 40 CFR part 260 petition process.

NR 665.0314(5)(a) (a) Nonbiodegradable sorbents are any of the following:

NR 665.0314(5)(a)1. 1. Inorganic minerals, other inorganic materials and elemental carbon (e.g., aluminosilicates, clays, smectites, Fuller’s earth, bentonite, calcium bentonite, montmorillonite, calcined montmorillonite, kaolinite, micas (illite), vermiculites, zeolites; calcium carbonate (organic free limestone); oxides or hydroxides, alumina, lime, silica (sand), diatomaceous earth; perlite (volcanic glass); expanded volcanic rock; volcanic ash; cement kiln dust; fly ash; rice hull ash; activated charcoal or activated carbon).

NR 665.0314(5)(a)2. 2. High molecular weight synthetic polymers (e.g., polyethylene, high density polyethylene (HDPE), polypropylene, polystyrene, polyurethane, polyacrylate, polynorborene, polyisobutylene, ground synthetic rubber, cross-linked allylstyrene and tertiary butyl copolymers). This does not include polymers derived from biological material or polymers specifically designed to be degradable.

NR 665.0314(5)(a)3. 3. Mixtures of these nonbiodegradable materials.

NR 665.0314(5)(b) (b) The sorbent material may be determined to be nonbiodegradable using any of the following tests:

NR 665.0314(5)(b)1. 1. ASTM Method G21-70 (1984a)—Standard Practice for Determining Resistance of Synthetic Polymer Materials to Fungi, incorporated by reference in s. NR 660.11.

NR 665.0314(5)(b)2. 2. ASTM Method G22-76 (1984b)—Standard Practice for Determining Resistance of Plastics to Bacteria, incorporated by reference in s. NR 660.11.

NR 665.0314(5)(b)3. 3. OECD test 301B [CO2 Evolution (Modified Sturm Test)], incorporated by reference in s. NR 660.11.

NR 665.0314(6) (6) The placement of any liquid which is not a hazardous waste in a landfill is prohibited unless the owner or operator of the landfill demonstrates to the department, or the department determines, that both of the following apply:

NR 665.0314(6)(a) (a) The only reasonably available alternative to the placement in the landfill is placement in a landfill or unlined surface impoundment, whether or not operating under an operating license or interim license, which contains, or may reasonably be anticipated to contain, hazardous waste.

NR 665.0314(6)(b) (b) Placement in the owner or operator’s landfill will not present a risk of contamination of any underground source of drinking water (as that term is defined in 40 CFR 144.3).

NR 665.0314 History History: CR 05-032: cr. Register July 2006 No. 607, eff. 8-1-06; CR 16-007: r. (1), renum. (2) to (7) to (1) to (6) and, as renumbered, am. (1), (3), (6) (intro.) Register July 2017 No. 739, eff. 8-1-17; correction in (4) as renumbered, made under s. 13.97 (4) (b) 7., Stats., Register July 2017 No. 739.

NR 665.0315 NR 665.0315 Special requirements for containers. Unless they are very small, such as an ampule, containers shall be either of the following:

NR 665.0315(1) (1) At least 90 percent full when placed in the landfill.

NR 665.0315(2) (2) Crushed, shredded or similarly reduced in volume to the maximum practical extent before burial in the landfill.

NR 665.0315 History History: CR 05-032: cr. Register July 2006 No. 607, eff. 8-1-06.

NR 665.0316 NR 665.0316 Disposal of small containers of hazardous waste in overpacked drums (lab packs). Small containers of hazardous waste in overpacked drums (lab packs) may be placed in a landfill if all of the following requirements are met:

NR 665.0316(1) (1) Hazardous waste shall be packaged in non-leaking inside containers. The inside containers shall be of a design and constructed of a material that will not react dangerously with, be decomposed by or be ignited by the contained waste. Inside containers shall be tightly and securely sealed. The inside containers shall be of the size and type specified in the U.S. department of transportation (DOT) hazardous materials regulations (49 CFR parts 173, 178 and 179), if those regulations specify a particular inside container for the waste.

NR 665.0316(2) (2) The inside containers shall be overpacked in an open head DOT-specification metal shipping container (49 CFR parts 178 and 179) of no more than 416-liter (110 gallon) capacity and surrounded by, at a minimum, a sufficient quantity of sorbent material, determined to be nonbiodegradable in accordance with s. NR 665.0314 (5), to completely sorb all of the liquid contents of the inside containers. The metal outer container shall be full after it has been packed with inside containers and sorbent material.

NR 665.0316(3) (3) The sorbent material used may not be capable of reacting dangerously with, being decomposed by or being ignited by the contents of the inside containers, in accordance with s. NR 665.0017 (2).

NR 665.0316(4) (4) Incompatible wastes, as defined in s. NR 660.10, may not be placed in the same outside container.

NR 665.0316(5) (5) Reactive waste, other than cyanide- or sulfide-bearing waste as defined in s. NR 661.0023 (1) (e), shall be treated or rendered non-reactive prior to packaging in accordance with subs. (1) to (4). Cyanide- and sulfide-bearing reactive waste may be packaged in accordance with subs. (1) to (4) without first being treated or rendered non-reactive.

NR 665.0316(6) (6) The disposal is in compliance with the requirements of ch. NR 668. Persons who incinerate lab packs according to the requirements in s. NR 668.42 (3) (a) may use fiber drums in place of metal outer containers. The fiber drums shall meet the DOT specifications in 49 CFR 173.12 and be overpacked according to the requirements in sub. (2).

NR 665.0316 History History: CR 05-032: cr. Register July 2006 No. 607, eff. 8-1-06; CR 19-082: am. (2), (5) Register August 2020 No. 776, eff. 9-1-20.

subch. O of ch. NR 665 Subchapter O — Incinerators

NR 665.0340 NR 665.0340 Applicability.

NR 665.0340(1) (1) This subchapter applies to owners and operators of hazardous waste incinerators (as defined in s. NR 660.10), except as s. NR 665.0001 provides otherwise.

NR 665.0340(2) (2) 

NR 665.0340(2)(a) (a) Except as provided by pars. (b) and (c), this chapter no longer applies when an owner or operator demonstrates compliance with the maximum achievable control technology (MACT) requirements of 40 CFR part 63, subpart EEE, by conducting a comprehensive performance test and submitting proof of a postmarked notification of compliance to the department under 40 CFR 63.1207 (j) and 63.1210 (d) documenting compliance with 40 CFR part 63, subpart EEE.

NR 665.0340(2)(b) (b) Section NR 665.0351 and the applicable requirements of subchs. A to H, BB and CC continue to apply even where the owner or operator has demonstrated compliance with the MACT requirements of 40 CFR part 63, subpart EEE.

NR 665.0340(2)(c) (c) Section NR 665.0345 generally prohibiting burning of hazardous waste during startup and shutdown remains in effect if the owner or operator elects to comply with s. NR 670.235 (2) (a) 1. to minimize emissions of toxic compounds from startup and shutdown.

NR 665.0340(3) (3) Owners and operators of incinerators burning hazardous waste are exempt from this subchapter, except s. NR 665.0351, provided that the owner or operator has documented, in writing, that the waste would not reasonably be expected to contain any of the hazardous constituents in ch. NR 661 Appendix VIII, and has retained that documentation at the facility, if the waste to be burned is one of the following:

NR 665.0340(3)(a) (a) Listed as a hazardous waste in subch. D of ch. NR 661 solely because it is ignitable (hazard code I), corrosive (hazard code C) or both.

NR 665.0340(3)(b) (b) Listed as a hazardous waste in subch. D of ch. NR 661 solely because it is reactive (hazard code R) for characteristics other than those in s. NR 661.0023 (1) (d) and (e), and will not be burned when other hazardous wastes are present in the combustion zone.

NR 665.0340(3)(c) (c) A hazardous waste solely because it possesses the characteristic of ignitability, corrosivity or both, as determined by the tests for characteristics of hazardous wastes under subch. C of ch. NR 661.

NR 665.0340(3)(d) (d) A hazardous waste solely because it possesses any of the reactivity characteristics in s. NR 661.0023 (1) (a), (b), (c), (f), (g) or (h), and will not be burned when other hazardous wastes are present in the combustion zone.

NR 665.0340 History History: CR 05-032: cr. Register July 2006 No. 607, eff. 8-1-06; CR 16-007: am. (2) (a) Register July 2017 No. 739, eff. 8-1-17; CR 19-082: am. (2) (a), (3) (b), (d) Register August 2020 No. 776, eff. 9-1-20; correction in (3) (b) made under s. 35.17, Stats., Register August 2020 No. 776.

NR 665.0341 NR 665.0341 Waste analysis. In addition to the waste analyses required by s. NR 665.0013, the owner or operator shall sufficiently analyze any waste which the owner or operator has not previously burned in the owner or operator’s incinerator to enable the owner or operator to establish steady state (normal) operating conditions (including waste and auxiliary fuel feed and air flow) and to determine the type of pollutants which might be emitted. At a minimum, the analysis shall determine all of the following:

NR 665.0341(1) (1) Heating value of the waste.