Illinois Administrative Code
Title 35 - ENVIRONMENTAL PROTECTION
Part 104 - REGULATORY RELIEF MECHANISMS
Subpart E - TIME-LIMITED WATER QUALITY STANDARDS (TLWQS)
Section 104.505 - Applicability and Use
Current through Register Vol. 48, No. 38, September 20, 2024
a) A TLWQS proceeding is a non-adjudicatory proceeding.
b) A TLWQS may be adopted for a single discharger, multiple dischargers, a watershed, a water body, or a waterbody segment.
c) The extent and coverage of TLWQS will be set forth in the Board's order (see Section 104.565 ).
d) A TLWQS, once adopted by the Board and approved by USEPA, will be the applicable standard for the purposes of the Clean Water Act in developing NPDES permit limits and requirements under 35 Ill. Adm. Code 309 for the term of the TLWQS. Any limitations and requirements necessary to implement the TLWQS will be included as enforceable conditions of the NPDES permit for any permittee granted coverage under the TLWQS by the Board or Agency.
e) The Agency may use an approved TLWQS when issuing certifications under section 401 of the Clean Water Act.
