Wisconsin Administrative Code
Department of Natural Resources
NR 600-699 - Environmental Protection - Hazardous Waste Management
Chapter NR 666 - Standards For Managing Specific Hazardous Wastes And Specific Types Of Hazardous Waste Management Facilities
Subchapter H - Hazardous Waste Burned in Boilers and Industrial Furnaces
Section NR 666.111 - Standards for direct transfer

Universal Citation: WI Admin Code § NR 666.111

Current through August 26, 2024

(1) APPLICABILITY. The regulations in this section apply to owners and operators of boilers and industrial furnaces subject to s. NR 666.102 or 666.103 if hazardous waste is directly transferred from a transport vehicle to a boiler or industrial furnace without the use of a storage unit.

(2) DEFINITIONS.

(a) When used in this section, the following terms have the meanings given in subds. 1. and 2.:

1. "Direct transfer equipment" means any device (including but not limited to, such devices as piping, fittings, flanges, valves and pumps) that is used to distribute, meter or control the flow of hazardous waste between a container (i.e., transport vehicle) and a boiler or industrial furnace.

2. "Container" means any portable device in which hazardous waste is transported, stored, treated or otherwise handled, and includes transport vehicles that are containers themselves (e.g., tank trucks, tanker-trailers and rail tank cars), and containers placed on or in a transport vehicle.

(b) This section references several requirements provided in subchs. I and J of chs. NR 664 and 665. For purposes of this section, the term tank systems in those referenced requirements means direct transfer equipment as defined in par. (a).

(3) GENERAL OPERATING REQUIREMENTS.

(a) No direct transfer of a pumpable hazardous waste shall be conducted from an open-top container to a boiler or industrial furnace.

(b) Direct transfer equipment used for pumpable hazardous waste shall always be closed, except when necessary to add or remove the waste, and may not be opened, handled or stored in a manner that may cause any rupture or leak.

(c) The direct transfer of hazardous waste to a boiler or industrial furnace shall be conducted so that it does not do any of the following:

1. Generate extreme heat or pressure, fire, explosion or violent reaction.

2. Produce uncontrolled toxic mists, fumes, dusts or gases in sufficient quantities to threaten human health.

3. Produce uncontrolled flammable fumes or gases in sufficient quantities to pose a risk of fire or explosions.

4. Damage the structural integrity of the container or direct transfer equipment containing the waste.

5. Adversely affect the capability of the boiler or industrial furnace to meet the standards provided by ss. NR 666.104 to 666.107.

6. Threaten human health or the environment.

(d) Hazardous waste may not be placed in direct transfer equipment, if it could cause the equipment or its secondary containment system to rupture, leak, corrode or otherwise fail.

(e) The owner or operator of the facility shall use appropriate controls and practices to prevent spills and overflows from the direct transfer equipment or its secondary containment systems. These include, at a minimum, all of the following:

1. Spill prevention controls (e.g., check valves, dry discount couplings).

2. Automatic waste feed cutoff to use if a leak or spill occurs from the direct transfer equipment.

(4) AREAS WHERE DIRECT TRANSFER VEHICLES (CONTAINERS) ARE LOCATED. Applying the definition of container under this section, owners and operators shall comply with all of the following requirements:

(a) The containment requirements of s. NR 664.0175.

(b) The use and management requirements of subch. I of ch. NR 665, except for ss. NR 665.0170 and 665.0174, and except that in lieu of the special requirements of s. NR 665.0176 for ignitable or reactive waste, the owner or operator may comply with the requirements for the maintenance of protective distances between the waste management area and any public ways, streets, alleys, or an adjacent property line that can be built upon as required in Tables 2-1 to 2-6 of the National Fire Protection Association's (NFPA) "Flammable and Combustible Liquids Code," (1977 or 1981), incorporated by reference in s. NR 660.11. The owner or operator shall obtain and keep on file at the facility a written certification by the local fire marshal that the installation meets the subject NFPA codes.

(5) DIRECT TRANSFER EQUIPMENT. Direct transfer equipment shall meet all of the following requirements:

(a) Secondary containment. Owners and operators shall comply with the secondary containment requirements of s. NR 665.0193, except for s. NR 665.0193(1), (4), (5) and (9) as follows:

1. For all new direct transfer equipment, prior to their being put into service.

2. For existing direct transfer equipment within 2 years after August 21, 1991.

(b) Requirements prior to meeting secondary containment requirements.

1. For existing direct transfer equipment that does not have secondary containment, the owner or operator shall determine whether the equipment is leaking or is unfit for use. The owner or operator shall obtain and keep on file at the facility a written assessment reviewed and certified by a qualified, registered professional engineer in accordance with s. NR 670.011 that attests to the equipment's integrity by August 21, 1992.

2. The assessment under subd. 1. shall determine whether the direct transfer equipment is adequately designed and has sufficient structural strength and compatibility with the wastes to be transferred to ensure that it will not collapse, rupture or fail. At a minimum, this assessment shall consider all of the following:

a. Design standards, if available, according to which the direct transfer equipment was constructed.

b. Hazardous characteristics of the wastes that have been or will be handled.

c. Existing corrosion protection measures.

d. Documented age of the equipment, if available (otherwise, an estimate of the age).

e. Results of a leak test or other integrity examination such that the effects of temperature variations, vapor pockets, cracks, leaks, corrosion and erosion are accounted for.

3. If, as a result of the assessment specified above, the direct transfer equipment is found to be leaking or unfit for use, the owner or operator shall comply with s. NR 665.0196(1) and (2).

1. The owner or operator shall inspect at least once each operating hour when hazardous waste is being transferred from the transport vehicle (container) to the boiler or industrial furnace all of the following:

a. Overfill or spill control equipment (e.g., waste-feed cutoff systems, bypass systems and drainage systems) to ensure that it is in good working order.

b. The above ground portions of the direct transfer equipment to detect corrosion, erosion or releases of waste (e.g., wet spots, dead vegetation).

c. Data gathered from monitoring equipment and leak-detection equipment, (e.g., pressure and temperature gauges) to ensure that the direct transfer equipment is being operated according to its design.

2. The owner or operator shall inspect cathodic protection systems, if used, to ensure that they are functioning properly according to the schedule provided by s. NR 665.0195(2).

3. Records of inspections made under this paragraph shall be maintained in the operating record at the facility, and available for inspection for at least 3 years from the date of the inspection.

(d) Design and installation of new ancillary equipment. Owners and operators shall comply with s. NR 665.0192.

(e) Response to leaks or spills. Owners and operators shall comply with s. NR 665.0196.

(f) Closure. Owners and operators shall comply with s. NR 665.0197, except for s. NR 665.0197(3) (b) to (d).

Disclaimer: These regulations may not be the most recent version. Wisconsin may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.

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