Oklahoma Administrative Code (Last Updated: March 11, 2021) |
TITLE 252. Department of Environmental Quality |
Chapter 690. Water Quality Standards Implementation |
Subchapter 3. Point Source Discharges |
SECTION 252:690-3-27. Intermittent toxicity
Latest version.
- Where the permittee has demonstrated intermittent toxicity in either acute or chronic WET testing, the DEQ will require an increase in the frequency of WET testing and may require the permittee to perform a TRE/TIE for the affected species. A WET limit, chemical-specific numerical limit, or toxicity-specific management practice may be required at the completion of a TRE/TIE if the DEQ determines it is warranted.