Chapter NR 506

Register February 2010 No. 650

Chapter NR 506

LANDFILL OPERATIONAL CRITERIA

NR 506.01   Purpose.

NR 506.02   Applicability.

NR 506.03   Definitions.

NR 506.04   Open burning.

NR 506.05   Daily cover requirements.

NR 506.055   Alternate daily cover.

NR 506.06   Intermediate cover.

NR 506.07   Operational requirements for landfills.

NR 506.08   Closure requirements.

NR 506.083   Closure requirements for CCR landfills.

NR 506.084   Long-term care requirements for CCR landfills.

NR 506.085   Final use.

NR 506.09   Waste characterization.

NR 506.095   Prohibited items.

NR 506.10   Asbestos.

NR 506.105   Untreated contaminated unconsolidated material.

NR 506.11   Infectious waste.

NR 506.12   Ultra low-level radioactive waste.

NR 506.13   Free liquids wastes.

NR 506.135   Leachate recirculation.

NR 506.14   Non-free liquid solid wastes.

NR 506.15   Management of residue produced by burning municipal solid waste.

NR 506.155   Very small quantities of hazardous waste.

NR 506.16   Procedures for excluding the receipt of waste not specifically approved for acceptance at the landfill.

NR 506.17   Record keeping.

NR 506.18   Enforcement.

NR 506.19   Landfill compliance certifications and audits.

NR 506.20   Inspection and reporting requirements for a CCR landfill.

Ch. NR 506 Note Note: Corrections made under s. 13.93 (2m) (b) 7., Stats., Register, August, 1997, No. 500.

NR 506.01 NR 506.01 Purpose. The purpose of this chapter is to help ensure that efficient, nuisance-free and environmentally acceptable solid waste management procedures are practiced in Wisconsin and to outline the requirements regarding operational criteria for solid waste landfills and surface impoundments. This chapter is adopted under ch. 289, Stats., and s. 227.11, Stats.

NR 506.01 History History: Cr. Register, January, 1988, No. 385, eff. 2-6-88.

NR 506.02 NR 506.02 Applicability.

NR 506.02(1) (1) 

NR 506.02(1)(a) (a) Except as provided in par. (b) and except as otherwise provided, this chapter governs all solid waste disposal facilities as defined under s. 289.01 (35), Stats., including all CCR landfills and expansions.

NR 506.02(1)(b) (b) This chapter does not govern any of the following:

NR 506.02(1)(b)1. 1. Hazardous waste facilities as defined under s. 291.01 (8), Stats., and regulated under chs. NR 660 to 679.

NR 506.02(1)(b)2. 2. Metallic mining operations for nonferrous minerals as defined under s. 293.01 (9), Stats., and regulated under ch. NR 182.

NR 506.02(1)(b)3. 3. Metallic mining operations for ferrous minerals as defined under s. 295.41 (26), Stats., including mining wastes and mining waste sites as defined under s. 295.41 (30) and (31), Stats., and regulated under subch. III of ch. 295, Stats.

NR 506.02(2) (2) This chapter does not apply to the design, construction or operation of industrial wastewater facilities, sewerage systems and waterworks treating liquid wastes approved under s. 281.41, Stats., or permitted under ch. 283, Stats., nor to facilities used solely for the disposal of liquid municipal or industrial wastewater facilities, sewerage systems and waterworks treating liquid wastes approved under s. 281.41, Stats., or permitted under ch. 283, Stats., except for facilities used for the disposal of solid waste.

NR 506.02 History History: Cr. Register, January, 1988, No. 385, eff. 2-6-88; correction in (1) made under s. 13.93 (2m) (b) 7., Stats., Register, May, 1992, No. 437; am. (1), Register, June, 1996, No. 486, eff. 7-1-96; correction in (1) made under s. 13.93 (2m) (b) 7., Stats., Register December 2006 No. 612; CR 13-057: am. (1) Register July 2015 No. 715, eff. 8-1-15; CR 21-076: renum. (1) to (1) (a) and (b) 1. to 3. and am., cr. (1) (b) Register July 2022 No. 799, eff. 8-1-22.

NR 506.03 NR 506.03 Definitions. The terms in this chapter are defined in s. NR 500.03.

NR 506.03 History History: Cr. Register, January, 1988, No. 385, eff. 2-6-88.

NR 506.04 NR 506.04 Open burning. The department may approve burning of brush, grubbed material and other similar material in accordance with air management, solid waste management and all other applicable regulations.

NR 506.04 History History: Cr. Register, January, 1988, No. 385, eff. 2-6-88; r. and recr., Register, June, 1996, No. 486, eff. 7-1-96.

NR 506.05 NR 506.05 Daily cover requirements.

NR 506.05(1) (1) Municipal solid waste. All solid waste disposed in a municipal solid waste landfill shall be compacted and completely covered at the end of each operating day with a compacted layer of at least 6 inches of soil. Alternate daily cover materials may be approved or mandated by the department as required in s. NR 506.055. If clay soil is used for daily cover purposes, it shall be scarified or removed prior to placement of the next lift of solid waste.

NR 506.05(2) (2) Industrial and commercial waste. Unless otherwise specified by the department, high volume industrial waste is not subject to daily cover requirements, unless disposed of in a municipal solid waste landfill. All other industrial waste and commercial waste shall be compacted and completely covered at the end of each operating day with a compacted layer of at least 6 inches of soil or other material approved in writing by the department. The department may grant an exemption in writing for less frequent covering. In granting such exemptions, the department shall consider the characteristics of the solid waste, the leaching potential of the solid waste and the potential for nuisance conditions if other than daily covering is utilized.

NR 506.05 History History: Cr. Register, January, 1988, No. 385, eff. 2-6-88; r. and recr. (1), am. (2), Register, June, 1996, No. 486, eff. 7-1-96.

NR 506.055 NR 506.055 Alternate daily cover.

NR 506.055(1) (1) Facilities seeking approval. An owner or operator of a solid waste landfill seeking approval from the department to use an alternate daily cover material shall submit the following information:

NR 506.055(1)(a) (a) Type of material to be used, including its chemical and physical properties as required in s. NR 506.09. A discussion of the material’s successful use at other solid waste landfills in controlling vectors, windblown material and odors may be required.

NR 506.055(1)(b) (b) Method and rate of application.

NR 506.055(1)(c) (c) Conditions when alternate daily cover cannot be used, including but not limited to weather conditions, equipment breakdown, ability to obtain a sufficient quantity of alternate daily cover, maximum time alternate daily cover can be exposed, and a discussion of back-up cover materials for use when alternate cover cannot be used.

NR 506.055(1)(d) (d) Discussion of how the alternate cover material will be stored on-site prior to its use, including measures to be taken to prevent transportation of contaminants to groundwater and surface water, and prevention of windblown nuisances.

NR 506.055(2) (2) Mandated use of alternate daily cover. Upon request from a person operating a foundry or a scrap dealer in the state of Wisconsin, the department shall require that a person operating a municipal solid waste landfill accept and use the requested foundry sand or shredder fluff for cover at part or all of the landfill for the period specified in the request if all of the following conditions are met:

NR 506.055(2)(a) (a) The foundry operator or scrap dealer agrees to transport the foundry sand or shredder fluff to the landfill either daily or on another schedule acceptable to the municipal solid waste landfill operator.

NR 506.055(2)(b) (b) The department approves the use of the foundry sand or shredder fluff for cover at the landfill.

NR 506.055(2)(c) (c) The landfill operator is not contractually bound to obtain cover from another source.

NR 506.055(2)(d) (d) The amount of cover to be provided by the requesting foundry operator or scrap dealer does not exceed the amount of cover required under the plan of operation for the landfill less any cover provided by another foundry operator or scrap dealer.