NR 506.12(1)(1) Landfill criteria. Only landfills meeting the following criteria may accept ultra low-level radioactive waste for disposal: NR 506.12(1)(b)(b) The landfill shall be approved by the department in writing to accept ultra low-level radioactive waste. NR 506.12(2)(2) General requirements. The following criteria also apply to landfills proposing to accept ultra low-level radioactive waste: NR 506.12(2)(b)(b) A plan shall be submitted which addresses the control of any radon gas which may be generated by the waste. NR 506.12 HistoryHistory: Cr. Register, January, 1988, No. 385, eff. 2-6-88; am. (intro.), (1) (a), (b), (2) (intro.), Register, June, 1996, No. 486, eff. 7-1-96. NR 506.13(1)(1) Small quantity exemption. An owner or operator of a solid waste landfill used for the disposal of municipal solid waste may not accept containers holding liquid waste unless: NR 506.13(1)(a)(a) The container is small and similar in size to that normally found in household waste; NR 506.13(1)(b)(b) The container is designed to hold liquids for use other than storage; NR 506.13(1)(c)(c) It is not practicable to recycle the container or the material contained; or NR 506.13(2)(2) Municipal solid waste disposal facilities. Solid waste landfills used for the disposal of municipal solid waste may not accept waste containing free liquids except as provided in sub. (1) or unless the landfill has received approval from the department to recirculate leachate or gas condensate derived from the landfill. Recirculation of leachate or gas condensate will be considered only for landfill phases designed with a composite liner and efficient leachate collection system. NR 506.13(3)(3) Facilities that do not accept municipal solid waste. An owner or operator of any landfill that does not accept municipal solid waste may accept waste containing free liquids only in accordance with plans approved by the department in writing. NR 506.13 HistoryHistory: Cr. Register, January, 1988, No. 385, eff. 2-6-88; am. (1), (2), (3), cr. (1) (a) to (d), Register, June, 1996, No. 486, eff. 7-1-96. NR 506.135(1)(1) General. Leachate recirculation operations shall comply with the following requirements: NR 506.135(1)(a)(a) Leachate recirculation distribution systems may not discharge leachate within 100 lateral feet of the exterior sideslope final grades, unless otherwise approved by the department in writing. NR 506.135(1)(b)(b) Leachate may not be introduced in areas with less than 20 feet of waste over the leachate collection system. NR 506.135(1)(c)(c) Leachate may not be recirculated in areas that do not have active gas extraction systems installed. The gas extraction systems shall be operated in accordance with the approved leachate recirculation plan to control any additional gas generated by leachate recirculation and minimize release of uncontrolled gas. NR 506.135(1)(d)(d) Leachate recirculation shall be suspended upon discovery of warning symptoms, as identified in the approved leachate recirculation plan. Leachate recirculation may not resume in the area where the problem occurred until changes are made to the system or the warning symptoms have declined to acceptable levels. The operator shall notify the department in writing within 7 days of the discovery of warning symptoms and suspension of leachate recirculation. Alternative notification procedures may be approved by the department in writing. NR 506.135(1)(e)(e) Leachate recirculation shall be suspended whenever any of the failure thresholds identified in the approved leachate recirculation plan are exceeded. Leachate recirculation may not resume until the department has reviewed and approved changes to the system that will result in meeting the thresholds. The operator shall notify the department within 3 days of the discovery of exceeding any failure threshold. Alternative notification procedures may be approved by the department in writing. NR 506.135(1)(f)(f) The operation of the gas extraction system shall be amended as necessary to counteract any increased incidence or intensity of odors. NR 506.135(1)(g)(g) The landfill operator shall maintain in the landfill’s written operating record the liquid mass balance for each leachate drainage basin, including leachate extracted, leachate recirculated and precipitation, in all areas where leachate is recirculated, in accordance with the requirements of s. NR 507.215. All warning symptoms, terminations of leachate recirculation and other problems and their solutions shall be recorded. NR 506.135(1)(h)(h) Leachate may not be recirculated where daily or intermediate cover consists of low permeability clay soil or low permeability wastes, unless the daily or intermediate cover is removed or scarified. NR 506.135(1)(i)(i) Measures shall be taken to prevent cold weather freeze up of leachate distribution equipment if used during the winter months. NR 506.135(2)(2) Surface application. Surface application shall comply with the following requirements in addition to those in sub. (1): NR 506.135(2)(a)(a) Leachate may not be applied in a manner that results in ponding of leachate on the surface. NR 506.135(2)(b)(b) Leachate may not be applied in a manner that allows runoff of leachate beyond the application area. NR 506.135(2)(c)(c) Leachate may not be applied using a spray system or any other distribution system that promotes evaporation of leachate or volatilization of compounds in leachate. Spray systems such as spray bars on the back of a tanker truck may be acceptable if the spray is directed downward. NR 506.135(2)(d)(d) Leachate application shall be limited to the active area of the landfill. NR 506.135(2)(e)(e) Leachate may not be applied during wet or windy conditions that would prevent containment of the leachate to the application area. NR 506.135(2)(f)(f) Truck traffic shall be routed around the application area until the application area is covered to prevent tracking of leachate. NR 506.135(2)(g)(g) Areas of the landfill where leachate has been applied shall be covered with newly placed waste or soil as soon as possible, but in no case later than the end of the same working day that leachate is applied. NR 506.135(3)(3) Vertical distribution systems. Vertical distribution systems shall comply with the following requirements in addition to those in sub. (1): NR 506.135(3)(a)(a) Gas extraction wells designed independent of the leachate recirculation system shall not be used for leachate distribution. NR 506.135(3)(b)(b) Landfill gas may be extracted through leachate distribution wells to supplement the permanent gas extraction system. NR 506.135(4)(4) Horizontal distribution systems. Horizontal distribution systems shall comply with the following requirements in addition to those in sub. (1): NR 506.135(4)(a)(a) Leachate shall not be discharged continuously to individual distribution pipes. Periodic rest periods shall be incorporated into the operating schedule to allow for absorption of leachate into the waste mass and for extraction of landfill gas. NR 506.135(4)(b)(b) Landfill gas may be extracted through leachate distribution pipes to supplement the permanent gas extraction system. NR 506.135(5)(5) Annual reporting for leachate recirculation. An annual report shall be submitted to the department by April 30 of each year for leachate recirculation activities occurring during the previous calendar year. The report shall include: NR 506.135(5)(a)(a) The results of the liquid mass balance measurements for each leachate drainage basin. NR 506.135(5)(c)(c) Graphs showing the volumes of leachate extracted and recirculated and precipitation received for each leachate drainage basin. NR 506.135(5)(d)(d) Graphs over the time period since leachate recirculation was initiated, for each parameter required to be sampled in s. NR 507.215. NR 506.135(5)(e)(e) Summary of warning symptoms, terminations, resumptions of leachate recirculation after termination, and any operating problems and resolutions. NR 506.135(5)(f)(f) Documentation drawings or diagrams showing the installed details of the leachate distribution system added or revised since the previous annual report, including but not limited to piping, pumps and distribution media. NR 506.135 HistoryHistory: CR 04-077: cr. Register November 2005 No. 599, eff. 12-1-05; CR 06-026: am. (1) (a) to (e) and (h) and (2) (a) to (c) and (e) to (f), Register December 2006 No. 612, eff. 1-1-07. NR 506.14NR 506.14 Non-free liquid solid wastes. NR 506.14(1)(1) Small quantity exemption. An owner or operator of a solid waste landfill used for the disposal of municipal solid waste may accept sludge wastes amounting to less than 50 cubic yards per year per generator provided that the material is tested and determined to be non-hazardous, the criteria contained in sub. (2) (a) to (c) are complied with and the department is notified and provided with all testing information prior to disposal. The department may require additional information if deemed necessary. NR 506.14(2)(2) Municipal solid waste disposal landfills. An owner or operator of a solid waste landfill used for the disposal of municipal solid waste may not accept sludge wastes for disposal unless the small quantity exemption requirements provided in sub. (1) are met, or unless all of the following criteria are complied with: NR 506.14(2)(b)(b) The proposed landfill shall be in compliance with all solid waste regulations and any plan of operation approval. NR 506.14(2)(c)(c) The material has been tested and determined not to contain free liquids. NR 506.14(2)(d)(d) A report has been submitted to and approved by the department which addresses the physical and chemical characteristics of the waste including the percent solids; the weight and volume of material produced; the frequency of waste generation; the amount of additional liquid which would be added over a specified time frame; methods for handling the additional gas generation and any proposed changes to the groundwater, surface water, unsaturated zone or leachate monitoring programs. NR 506.14(2)(e)(e) An annual report is submitted which documents the daily mixing ratios of each sludge waste to municipal solid waste on both a weight and volume basis and any operational problems. NR 506.14(3)(3) Other facilities. An owner or operator of any waste disposal facility other than a municipal solid waste landfill may accept sludge which does not contain free liquids only in accordance with plans approved by the department. NR 506.14 HistoryHistory: Cr. Register, January, 1988, No. 385, eff. 2-6-88; am. (1), (2) (intro.), (a), (b), (d), (e), (3), Register, June, 1996, No. 486, eff. 7-1-96. NR 506.15NR 506.15 Management of residue produced by burning municipal solid waste. NR 506.15(1)(1) General. No person may operate or maintain a landfill for the disposal of residue produced by the burning of municipal solid waste, except in accordance with this section and the written approval of the department. NR 506.15(2)(2) Landfill criteria. Only landfills meeting the following criteria may accept municipal solid waste combustor residue for disposal: NR 506.15(2)(a)(a) The landfill shall be a licensed and approved landfill as defined in s. 289.01 (3), Stats. The department may grant an exemption to this provision if the landfill owner or operator can demonstrate substantial compliance with the design criteria in s. NR 504.11. NR 506.15(2)(b)(b) The landfill shall be approved by the department in writing prior to accepting residue from each municipal solid waste combustor source. The landfill may accept only residue from municipal solid waste combustors designated in the municipal solid waste combustor residue disposal plan included in the initial plan of operation approval or a modification to the original approval granted under s. NR 514.07 (5). NR 506.15(2)(c)(c) The landfill area used for disposal shall be designed and constructed, at a minimum, as a composite lined monofill meeting the requirements of s. NR 504.11 (2) (a). Operators of medical waste combustors with a design capacity of less than 10 tons per day may apply to the department for a written exemption to this requirement. All municipal solid waste combustor residue that meets or exceeds the test limits specified in s. NR 502.13 (6) (g) or subsequent confirmation testing as specified in s. NR 502.13 (6) (h), and is not subsequently treated to below those limits, may not be disposed of in a municipal solid waste landfill and shall be managed in accordance with chs. NR 660 to 679. NR 506.15(2)(d)(d) The landfill shall maintain a storm water control system approved by the department. NR 506.15(2)(e)(e) The landfill shall maintain access control to the landfill. NR 506.15(3)(3) Operational requirements. No person may operate or maintain a new or existing landfill that accepts residue produced by the burning of municipal solid waste except in conformance with all provisions of a municipal solid waste residue disposal plan approved under s. NR 514.07 (5), the applicable portions of s. NR 506.07 and the following minimum requirements: NR 506.15(3)(b)(b) Cover soil shall be used during filling operations to restrict the exposed residue area of disposal to as small an area as practical. In no case may the exposed residue area be larger than 50 feet by 100 feet unless otherwise approved by the department. NR 506.15(3)(c)(c) The residue shall be covered with a minimum of 6 inches of soil at the end of daily operations for each day residue was accepted unless an alternative method is approved by the department under par. (e). NR 506.15(3)(d)(d) Filled areas, other than the active residue disposal area, shall be covered with soil or a department approved soil substitute such as foundry sand. NR 506.15(3)(e)(e) The department may approve alternatives to daily cover such as water or foam if it can be demonstrated that the residue will not become windblown. NR 506.15(3)(f)(f) Equipment operators shall be provided with appropriate safety equipment, such as respirators. NR 506.15 HistoryHistory: Cr. Register, May, 1992, No. 437, eff. 6-1-92; am. (1), (2) (intro.), (a), (b), (3) (intro.), (e), cr. (2) (c) to (e), Register, June, 1996, No. 486, eff. 7-1-96; CR 05-020: am. (2) (c) and (3) (g) Register January 2006 No. 601, eff. 2-1-06; correction in (2) (c) made under s. 13.93 (2m) (b) 7., Stats., Register December 2006 No. 612. NR 506.155NR 506.155 Very small quantities of hazardous waste. No person may accept hazardous waste from very small quantity generators excluded from regulation under s. NR 662.014 except in accordance with this section and the written approval of the department. NR 506.155(1)(1) Landfill criteria. No person may accept hazardous waste from very small quantity generators for disposal at a landfill unless all the following criteria are met: NR 506.155(1)(b)(b) The landfill is in compliance with all solid waste regulations and any plan approval; and NR 506.155(2)(2) General requirements. No person may accept hazardous waste from very small quantity generators for disposal in a solid waste landfill unless: NR 506.155(2)(a)(a) The person has obtained written approval under s. NR 506.09 and complies with all conditions of the approval; NR 506.155(2)(b)(b) The person submits annual reports to the department no later than April 1 of the following year which document the types and quantities of hazardous waste accepted during the previous year, the generators and transporters of the waste and any other information required by the department; and NR 506.155(2)(c)(c) The person has paid the waste management fund fees specified in s. 289.62, Stats., for all hazardous waste quantities accepted. NR 506.155 HistoryHistory: Cr. Register, January, 1991, No. 421, eff. 2-1-91; renum. from NR 506.15, Register, May, 1992, No. 437, eff. 6-1-92; am. (intro.), (1), (2) (intro.), Register, June, 1996, No. 486, eff. 7-1-96; correction in (intro.) made under s. 13.93 (2m) (b) 7., Stats., Register December 2006 No. 612; correction in (intro.) made under s. 13.92 (4) (b) 7., Stats., Register July 2022 No. 799. NR 506.16NR 506.16 Procedures for excluding the receipt of waste not specifically approved for acceptance at the landfill. Owners and operators of landfills that accept municipal solid waste shall implement a program at the landfill for detecting and preventing the disposal of waste not specifically approved for acceptance including but not limited to liquids, sludges, regulated hazardous waste and PCB waste. The program shall include the following: NR 506.16(1)(1) Random inspections of incoming loads. Random inspections shall be made of every incoming load of solid waste unless the owner or operator receives approval in writing from the department to take other steps to insure that incoming loads do not contain wastes not specifically approved for acceptance. NR 506.16(1)(a)(a) Inspections shall be conducted on every 5,000 tons of solid waste accepted or one inspection per month, whichever is more frequent. No more than one inspection per week is required. An owner or operator of a landfill which accepts less than 10,000 tons per year of solid waste and demonstrates adequate justification for less frequent inspections may be approved by the department for a minimum of 4 inspections per year. To assure that the inspections are random, the first truckload which exceeds the accumulated total of 5,000 tons of solid waste shall be selected for inspection. Alternate methods of assuring random selection may be approved by the department.
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Chs. NR 500-599; Environmental Protection – Solid Waste Management
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