Wisconsin Administrative Code
Department of Natural Resources
NR 600-699 - Environmental Protection - Hazardous Waste Management
Chapter NR 661 - Hazardous Waste Identification And Listing
Subchapter BB - Air Emission Standards for Equipment Leaks
Section NR 661.1062 - Alternative standards for valves in gas/vapor service or in light liquid service: skip period leak detection and repair

(a) A remanufacturer or other person that stores or treats hazardous secondary material shall comply with the requirements for valves, as described in s. NR 661.1057, except as described in pars. (b) and (c).

(b) After 2 consecutive quarterly leak detection periods with the percentage of valves leaking equal to or less than 2 percent, a remanufacturer or other person that stores or treats the hazardous secondary material may begin to skip one of the quarterly leak detection periods and monitor for leaks once every 6 months for the valves subject to the requirements specified in s. NR 661.1057.

(c) After 5 consecutive quarterly leak detection periods with the percentage of valves leaking equal to or less than 2 percent, a remanufacturer or other person that stores or treats the hazardous secondary material may begin to skip 3 of the quarterly leak detection periods and monitor for leaks once every year for the valves subject to the requirements specified in s. NR 661.1057.

(d) If the percentage of valves leaking is greater than 2 percent, the remanufacturer or other person that stores or treats the hazardous secondary material shall monitor monthly in compliance with the requirements specified in s. NR 661.1057, but may again elect to use this section after meeting the requirements specified in s. NR 661.1057(3) (a).