Illinois Administrative Code
Title 35 - ENVIRONMENTAL PROTECTION
Part 721 - IDENTIFICATION AND LISTING OF HAZARDOUS WASTE
Subpart BB - AIR EMISSION STANDARDS FOR EQUIPMENT LEAKS
Section 721.962 - Alternative Standards for Valves in Gas/Vapor Service or in Light Liquid Service: Skip Period Leak Detection and Repair

1) A remanufacturer or other person that stores or treats the hazardous secondary material must comply with the requirements for valves, as described in Section 721.957, except as described in subsections (b)(2) and (b)(3).

2) After two consecutive quarterly leak detection periods with the percentage of valves leaking equal to or less than two 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 (i.e., monitor for leaks once every six months) for the valves subject to the requirements in Section 721.957.

3) After five consecutive quarterly leak detection periods with the percentage of valves leaking equal to or less than two percent, a remanufacturer or other person that stores or treats the hazardous secondary material may begin to skip three of the quarterly leak detection periods (i.e., monitor for leaks once every year) for the valves subject to the requirements in Section 721.957.

4) If the percentage of valves leaking is greater than two percent, the remanufacturer or other person that stores or treats the hazardous secondary material must monitor monthly in compliance with the requirements in Section 721.957, but may again elect to use this Section after meeting the requirements of Section 721.957(c)(1).