Okla. Admin. Code § 690 app DDownload PDFCurrent through Vol. 41, No. 19, June 17, 2024Appendix D - [Effective until 9/14/2023] Whole Effluent Toxicity (WET) Testing Critical Dilutions and Dilution SeriesClick to view imageClick to view imageClick to view imageClick to view imageOkla. Admin. Code 690 app DAdopted by Oklahoma Register, Volume 40, Issue 6, December 1, 2022, eff. 10/25/2022 (emergency)