US lawOklahomaRegulationsTitle 252 — DEPARTMENT OF ENVIRONMENTAL QUALITYChapter 690252:690-3-33OAC 252:690-3-33WET testing dilution seriesYear: 2026Length: 16 wordsOfficial source Cite as Okla. Admin. Code § 252:690-3-33All WET testing will utilize a 0.75 dilution series as described in Tables D-1 and D-2.PreviousOAC 252:690-3-32NextOAC 252:690-3-34