Illinois Administrative Code
Title 35 - ENVIRONMENTAL PROTECTION
Part 220 - NONMETHANE ORGANIC COMPOUNDS
Subpart B - MSW LANDFILLS
Section 220.250 - Operational Standards for Collection and Control Systems
Current through Register Vol. 48, No. 38, September 20, 2024
Each owner or operator of an MSW landfill with a gas collection and control system shall:
a) Operate the collection system such that gas is collected from each area, cell, or group of cells in the MSW landfill in which the initial solid waste has been in place for:
b) Operate the collection system with negative pressure at each wellhead except under the following conditions:
c) Operate each interior wellhead in the collection system with a landfill gas temperature less than 55°C (131°F) and with either a nitrogen level less than 20 percent or an oxygen level less than 5 percent. The owner or operator may establish a higher operating temperature, nitrogen, or oxygen value at a particular well. A higher operating value demonstration that provides supporting data to show that the elevated parameter does not cause fires or significantly inhibit anaerobic decomposition by killing methagens must be approved by the Agency before such higher operating value may be used. Operating values shall be determined as follows:
d) Operate the collection system so that the methane concentration is less than 500 ppm above background at the surface of the landfill. To determine if this level is exceeded, the owner or operator shall conduct surface testing around the perimeter of the collection area and along a pattern that traverses the landfill at 30-meter intervals and where visual observations indicate elevated concentrations of landfill gas, such as distressed vegetation and cracks or seeps in the cover. An initial surface monitoring design plan shall be developed and included as part of the operating permit application (e.g., a CAAPP permit application) that includes a topographical map with the monitoring route and the rationale for any site-specific deviations from the 30-meter intervals. Areas with steep slopes or other dangerous areas may be excluded from the surface testing. The monitoring plan shall be updated as necessary. Updated copies must be sent to the Agency and kept on-site at the MSW landfill.
e) Operate the gas collection and control system such that all collected gases are vented to a control system designed and operated in compliance with Sections 220.230, 220.250, and 220.270 of this Subpart. In the event the collection or control system is inoperable, the gas mover system shall be shut down and all valves in the collection and control system contributing to venting of the gas to the atmosphere shall be closed within 1 hour.
f) Operate the gas collection and control or treatment system at all times, except during shutdown or malfunction, provided that the duration of start-up, shutdown, or malfunction must not exceed 5 days for collection systems and must not exceed 1 hour for treatment or control devices.
g) If monitoring demonstrates that the operational requirements in subsection (b), (c), or (d) of this Section are not met, take corrective action as specified in Section 220.240(a)(3), (a)(5), or (c)(4) of this Subpart. If such corrective actions are taken as specified in Section 220.240(a)(3), (a)(5), or (c)(4) of this Subpart, the monitored exceedence is not a violation of the operational requirements in this Section.
h) The collection and control system may be capped or removed provided: