EPA approved TMDL Reports for the State of Oklahoma are provided in the menu below the Water Quality Planning Basin Map. Click the appropriate Planning Basin number in the menu to view completed TMDLs in the associated geographic area.
Water Quality Planning Basin Map
EPA Approved TMDL Reports by Planning Basin
Basin 1 - Middle Arkansas-Verdigris-Neosho
Basin 3 - Washita-Upper Red
Basin 5 - Canadian-North Canadian-Deep Fork
Basin 6 - Cimarron-Upper Arkansas
Basin 7 - Beaver-Upper Cimarron