ok-5243: Department of Environmental Quality — Oklahoma Pollutant Discharge Elimination System (OPDES) Standards
Public comment closed · opened September 01, 2026.
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The gist of the proposed rules is to add and modify definitions to Subchapter 1. INTRODUCTION, as well as adding language to SUBCHAPTER 6. POINT SOURCE DISCHARGES for determination of reasonable potential for selenium and changing language to disallow monitoring frequency reductions for a parameter when the receiving water is impaired for that parameter. New equations are proposed to be added to Appendix L consistent with the proposed changes to sections in Subchapters 1 and 6.
The agency’s own summary, as published.
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