Oklahoma Administrative Code
Title 252 - Department of Environmental Quality
Chapter 690 - Water Quality Standards Implementation
Subchapter 3 - Point Source Discharges
Section 252:690-3-22 - Toxicity-based permit limit development for ammonia
Universal Citation: OK Admin Code 252:690-3-22
Current through Vol. 41, No. 13, March 15, 2024
Toxicity-based permit limitations are determined using the chronic screening value of 6 mg/l, a CV of 0.6, a zero background concentration (unless known to be otherwise), the regulatory flows described at OAC 252:690-3-52, and chronic mixing zone equations described at OAC 252:690-3-55 through 3-57. The toxicity-based MAL is based on a monitoring frequency of 3/week.
Added at 19 Ok Reg 1721, eff 6-13-02
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