Wisconsin Administrative Code
Department of Natural Resources
NR 600-699 - Environmental Protection - Hazardous Waste Management
Chapter NR 661 - Hazardous Waste Identification And Listing
Subchapter CC - Air Emission Standards for Tanks and Containers
Section NR 661.1087 - Standards: closed-vent systems and control devices

1. If a flow indicator is used to comply with this paragraph, the indicator shall be installed at the inlet to the bypass line used to divert gases and vapors from the closed-vent system to the atmosphere at a point upstream of the control device inlet. For this paragraph, a flow indicator means a device that indicates the presence of either gas or vapor flow in the bypass line.

2. If a seal or locking device is used to comply with this paragraph, the device shall be placed on the mechanism by which the bypass device position is controlled, such as the valve handle or damper lever, when the bypass device is in the closed position such that the bypass device cannot be opened without breaking the seal or removing the lock. Examples of such devices include a car-seal or a lock-and-key configuration valve. The remanufacturer or other person that stores or treats the hazardous secondary material shall visually inspect the seal or closure mechanism at least once every month to verify that the bypass mechanism is maintained in the closed position.

1. A control device designed and operated to reduce the total organic content of the inlet vapor stream vented to the control device by at least 95 percent by weight.

2. An enclosed combustion device designed and operated in accordance with the requirements specified in s. NR 661.1033(3).

3. A flare designed and operated in accordance with the requirements specified in s. NR 661.1033(4).

1. Periods of planned routine maintenance of the control device, during which the control device does not meet the specifications under par. (a) 1., 2. or 3., as applicable, may not exceed 240 hours per year.

2. The specifications and requirements under par. (a) 1. to 3. for control devices do not apply during periods of planned routine maintenance.

3. The specifications and requirements under par. (a) 1. to 3. for control devices do not apply during a control device system malfunction.

4. The remanufacturer or other person that stores or treats the hazardous secondary material shall demonstrate compliance with the requirements specified in subd. 1. by recording the information specified in s. NR 661.1089(5) (a) 5.

5. The remanufacturer or other person that stores or treats the hazardous secondary material shall correct control device system malfunctions as soon as practicable after their occurrence in order to minimize excess emissions of air pollutants.

6. The remanufacturer or other person that stores or treats the hazardous secondary material shall operate the closed-vent system such that gases, vapors, or fumes are not actively vented to the control device during periods of planned maintenance or control device system malfunction, such as periods when the control device is not operating or not operating normally, except in cases when it is necessary to vent the gases, vapors, or fumes to avoid an unsafe condition or to implement malfunction corrective actions or planned maintenance actions.

1. Following the initial startup of the control device, all activated carbon in the control device shall be replaced with fresh carbon on a regular basis in accordance with the requirements specified in s. NR 661.1033(7) or (8).

2. All carbon that is hazardous waste and that is removed from the control device shall be managed in accordance with the requirements specified in s. NR 661.1033(14), regardless of the average volatile organic concentration of the carbon.

1. A remanufacturer or other person that stores or treats the hazardous secondary material shall demonstrate, using either a performance test as specified in subd. 3. or a design analysis as specified in subd. 4., the performance of each control device except any of the following:

2. A remanufacturer or other person that stores or treats the hazardous secondary material shall demonstrate the performance of each flare in accordance with the requirements specified in s. NR 661.1033(5).

3. For a performance test conducted to meet the requirements specified in subd. 1, the remanufacturer or other person that stores or treats the hazardous secondary material shall use the test methods and procedures specified in s. NR 661.1034(3) (a) to (d).

4. For a design analysis conducted to meet the requirements specified in subd. 1., the design analysis shall meet the requirements specified in s. NR 661.1035(2) (d) 3.

5. The remanufacturer or other person that stores or treats the hazardous secondary material shall demonstrate that a carbon adsorption system achieves the performance requirements specified in par. (a) based on the total quantity of organics vented to the atmosphere from all carbon adsorption system equipment that is used for organic adsorption, organic desorption or carbon regeneration, organic recovery, and carbon disposal.