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

Statutory/Other Authority

ORS 468.020, 468B.030, 468B.035 & 468B.048

Statutes/Other Implemented

ORS 468B.030, 468B.035 & 468B.048

History

DEQ 17-2003, f. & cert. ef. 12-9-03