OAR 340-041-0344: Basin-Specific Criteria (Willamette): Approved TMDLs in the Basin:

The following TMDLs have been approved by EPA, and appear on the Department’s web site: Columbia Slough — Bacteria, Dissolved Oxygen, Chlorophyll a, pH, lead, PCBs, Dieldrin, Dioxin, DDE/DDT, and Phosphorus — November 25, 1998 Pudding — Ammonia and BOD — October 18, 1993 Rickreall Creek — BOD — April 18, 1994 Tualatin — Temperature, Bacteria, Dissolved Oxygen, Settleable Volatile Solids, Ammonia, Chlorophyll a, pH and Phosphorus — August 7, 2001 Yamhill — Phosphorus — December 8, 1992 Willamette — Dioxin — February 25, 1991 Willamette Coast Fork — Ammonia and Phosphorus — May 17, 1996