Illinois Administrative Code
Title 35 - ENVIRONMENTAL PROTECTION
Part 218 - ORGANIC MATERIAL EMISSION STANDARDS AND LIMITATIONS FOR THE CHICAGO AREA
Subpart Q - LEAKS FROM SYNTHETIC ORGANIC CHEMICAL AND POLYMER MANUFACTURING PLANT
Section 218.428 - Open-Ended Valves
Universal Citation: 35 IL Admin Code ยง 218.428
Current through Register Vol. 48, No. 38, September 20, 2024
a) Each open-ended valve shall be equipped with a cap, blind flange, plug, or a second valve, except during operations requiring fluid flow through the open-ended valve.
b) Each open-ended valve equipped with a second valve shall be operated in a manner such that the valve on the process fluid end is closed before the second valve is closed.
c) Components which are open-ended valves and which serve as a sampling connection shall be controlled such that they comply with subsection (c)(1), (c)(2) or (c)(3) below. This requirement does not apply to in-situ sampling systems.
1) A closed
purge system or closed vent system shall return purged process fluid to the
process line with no detectable VOM emissions to the atmosphere, or
2) A closed purge system or closed vent
system shall collect and recycle purged process fluid to the process line with
no detectable VOM emissions to the atmosphere, or
3) Purged process fluid shall be transported
to a control device that complies with the requirements of Section
218.429
of this Part. If a container is used to transport purged process fluid to the
control device, the container shall be a closed container designed and used to
reduce the VOM emissions vented from purged process fluid after transfer to no
detectable VOM emissions as determined by USEPA Reference Method 21, as
specified in 40 CFR 60, Appendix A (1990 or 1991) incorporated by reference in
Section
218.112
of this Part. For purposes of this Section, the phrase "after transfer" shall
refer to the time at which the entire amount of purged process fluid resulting
from a flushing or cleaning of the sample line enters the container, provided,
however, that purged process fluid may be transferred from the initial
container to another closed container prior to disposal, e.g., to a bulk waste
storage container.
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