Oregon DEQ: Water Quality - Total Maximum Daily Loads (TMDLs) Program

Total TMDL segments completed to date as required by the February 1, 2000 MOA between DEQ and EPA: 1,206

TMDLs approved prior to 2000

Waterbody (Basin)	Water Quality Impairment Addressed	Allocated Pollutant or Surrogate	USEPA Approval Date	Completed TMDL Segments by Basin	Completed TMDL Segments (cumulative)
Upper Grande Ronde River Subbasin (Grande Ronde)	Temperature, pH, Algae, DO, Sedimentation	Temperature, Sediment, Nitrogen, Phosphorous	05/03/2000	73	73
Upper South Fork Coquille Watershed (South Coast)	Temperature	Temperature	03/23/2001	4	77
Umatilla River Basin (Umatilla)	Temperature, pH, Sedimentation, Turbidity, Aquatic Weeds, Algae	Temperature, pH, Sedimentation, Turbidity, Aquatic Weeds, Algae	05/09/2001	45	122
Tillamook Bay Watershed (North Coast)	Temperature, Bacteria	Temperature, Bacteria	07/31/2001	39	161
Tualatin Subbasin (Willamette)	Temperature, Bacteria, DO, Algae, pH	Temperature, Bacteria, DO, Settleable Volatile Solids, Ammonia, Chlorophyll a, pH, Phosphorus	08/07/2001	102	263
Little River Watershed (North Umpqua)	Temperature, pH, Sedimentation	Temperature, pH, Sediment	01/29/2002	16	279
Western Hood Subbasin (Hood)	Temperature	Temperature	01/30/2002	7	286
Nestucca Bay Watershed (North Coast)	Temperature, Bacteria, Sediment	Temperature, Bacteria, Sediment	05/13/2002	6	292
Lower Sucker Creek Watershed (Illinois)	Temperature	Temperature	05/30/2002	3	295
Lobster Creek Watershed (Rogue)	Temperature	Temperature	06/13/2002	3	298
Upper Klamath Lake Drainage (Klamath)	Temperature, pH, DO, Chlorophyll a	Temperature, pH, DO, Chlorophyll a	08/07/2002	32	330
Lower Columbia River (Lower Columbia)	Total Dissolved Gas	Total Dissolved Gas	11/18/2002	7	337
North Coast Subbasins (North Coast)	Temperature, Bacteria	Temperature, Bacteria	08/20/2003	42	379
Alvord Lake Subbasin (Malheur Lake)	Temperature, Dissolved Oxygen	Temperature, Dissolved Oxygen	02/11/2004	7	386
Applegate Subbasin (Rogue)	Temperature, Sediment	Temperature, Sediment	02/11/2004	14	400
Snake River-Hells Canyon (Snake River)	Temperature, Total Dissolved Gas, DDT, DDE, DDD, Dieldrin	Temperature, Total Dissolved Gas, DDT, DDE, DDD, Dieldrin	03/01/2004	15	415
Snake River-Hells Canyon - Revised (Snake River)	Phosphorus, Sediment, Dissolved Oxygen	Temperature, Sediment, Dissolved Oxygen	09/09/2004	5	420
Sandy River Basin (Sandy)	Temperature, Bacteria	Temperature, Bacteria	04/14/2005	8	428
Walla Walla Subbasin (Walla Walla)	Temperature	Temperature	09/29/2005	4	432
Willamette Basin (Willamette)	Temperature, Bacteria, Mercury, Dissolved Oxygen, Dieldrin, DDT, Turbidity	Temperature, Bacteria, Mercury, Dissolved Oxygen, Dieldrin, DDT, Turbidity	09/29/2006	207	639
Willow Creek Subbasin (Umatilla)	Temperature, pH, Bacteria	Temperature, pH (Nutrients), and Bacteria	02/19/2007	4	643
Umpqua Basin (Umpqua)	Temperature, pH, Bacteria, DO, Aquatic Weeds, Chlorophyll a, Biological Criteria	Temperature, Nutrients, and Bacteria	04/12/2007	186	829
Tenmile Lakes Watershed (South Coast)	Aquatic Weeds, Algae	Nutrients, Sedimentation, and Invasive Weed Management	05/31/2007	2	831
Bear Creek Watershed (Rogue)	Temperature, Bacteria, Sedimentation	Temperature, Bacteria, Sedimentation	10/2/2007	32	863
Rogue River Basin (Rogue)	Temperature, Bacteria	Temperature, Bacteria	12/29/2008	109	972
Molalla-Pudding Subbasin(Willamette)	Temperature, Bacteria, Pesticides, Nitrate, Iron	Temperature, Bacteria, Pesticides, Nitrate, Iron	12/31/2008	26	998
Miles Creeks Subbasin (Middle Columbia-Hood)	Temperature	Temperature	02/05/2009	15	1,013
Lower Grande Ronde Subbasins (Grande Ronde)	Temperature, Bacteria	Temperature, Bacteria	09/24/2010	37	1,050
Malheur River Basin (Malheur)	Temperature, Bacteria, Chlorophyll a	Temperature, Bacteria, Phosphorus	12/03/2010	33	1,083
John Day River Basin (John Day)	Temperature, Bacteria, DO, Biocriteria	Heat, Flow, Morphology, Shade, Bacteria	12/17/2010	123	1,206