NR 666.902(1)(b) (b) A wetland.

NR 666.902(1)(c) (c) A habitat determined by the department to be critical to the continued existence of any threatened or endangered species listed in ch. NR 27.

NR 666.902(2) (2) The maximum amount of hazardous waste stored may not exceed 240,000 pounds (109,091 kg).

NR 666.902(3) (3) All hazardous waste shall be stored in containers in a building completely enclosed with a floor, walls and roof to prevent exposure to the elements, or in an equivalent manner, if approved by the department.

NR 666.902(4) (4) The floor underlying the containers shall be free of cracks and gaps and sufficiently impervious to contain leaks and spills until the released material is detected and removed.

NR 666.902(5) (5) The floor shall be sloped or a containment system shall be designed and operated to drain and remove liquids resulting from leaks or spills, unless the containers are elevated or are otherwise prevented from contact with accumulated liquids.

NR 666.902(6) (6) The containment system shall have sufficient capacity to contain the volume of the largest container, or 10% of the volume of all containers, whichever is greater. Containers that do not contain free liquids need not be considered in this determination.

NR 666.902(7) (7) Spilled or leaked waste shall be removed from the sump or collection area in as timely a manner as is necessary to prevent overflow of the collection system, or within 24 hours, whichever is less.

NR 666.902 History History: CR 05-032: cr. Register July 2006 No. 607, eff. 8-1-06; CR 16-007: am. (3) Register July 2017 No. 739, eff. 8-1-17.

NR 666.903 NR 666.903 Standards for operation of permanent collection facilities. An owner or operator of a permanent collection facility shall comply with all of the following:

NR 666.903(1) (1) notification. At least 30 days prior to first accepting hazardous waste from off-site, submit the “Notification of Activity for Household and Very Small Quantity Generator Hazardous Waste Collection Facility” form 4430-020 to the department and to the clerk of the affected municipalities.

NR 666.903 Note Note: This is a one-time notification. Collection facilities are not required to re-submit the form unless there is a change in ownership or facility operations. Form 4430-020 may be obtained from the department by E-mail: [e-mail] or phone: [phone].

NR 666.903(2) (2) Storage time limit. Store hazardous waste for no longer than one year from the date the waste is received.

NR 666.903(3) (3) Container management. Manage containers of hazardous waste according to all of the following:

NR 666.903(3)(a) (a) Label each container with either the words “hazardous waste” or other words that identify the contents of the container.

NR 666.903(3)(b) (b) Clearly mark the accumulation start date on each container.

NR 666.903(3)(c) (c) Store waste in containers that are in good condition and compatible with the waste being stored.

NR 666.903(3)(d) (d) Store containers closed except when adding or removing waste.

NR 666.903(3)(e) (e) Open, handle and store containers to prevent ruptures and leaks.

NR 666.903(3)(f) (f) Inspect containers and the areas where they are stored at least weekly for leaks and deterioration caused by corrosion or other factors. Take immediate action to correct problems found during inspections.

NR 666.903(3)(g) (g) Maintain adequate aisle space in the container storage areas to allow for unobstructed movement of personnel, fire protection and spill control equipment in an emergency.

NR 666.903(4) (4) Ignitable, reactive or incompatible waste. Manage ignitable, reactive or incompatible wastes according to all of the following:

NR 666.903(4)(a) (a) Store incompatible wastes in separate containers.

NR 666.903(4)(b) (b) Separate containers of incompatible wastes by means of a dike, berm, wall or other device.

NR 666.903(4)(c) (c) Store and protect ignitable or reactive wastes from sources of ignition or reaction.

NR 666.903(4)(d) (d) Post “No Smoking” signs in ignitable and reactive waste storage areas.

NR 666.903(5) (5) Security. Control entry of unauthorized persons to the container storage area at all times.

NR 666.903(6) (6) Preparedness and prevention. Operate the facility to prevent fires or explosions or releases of hazardous waste which could threaten human health or the environment.

NR 666.903(7) (7) Emergency equipment. Equip the facility with all of the following: