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Table of Subbasin Assessments, TMDLs, Implementation Plans, and Five-Year Reviews

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Below are links to subbasin assessments, total maximum daily loads (TMDLs), implementation plans, and five-year reviews completed in Idaho.

For information on and DEQ contacts for specific subbasins, click on the subbasin name. For general information on the TMDL process, contact DEQ's TMDL Program Coordinator, Mark Shumar, at (208) 373-0132 or mark.shumar@deq.idaho.gov.

Subbasin Name	Hydrologic Unit Code (HUC)	TMDL Status	Implementation Plan Status	Five Year Review Status
American Falls Subbasin	17040206	Approved by EPA August 2012
Bear River Basin/Malad River Subbasin	16010201 16010102 16010204 16010202	Approved by EPA June 2006 Bear River Basin Addendum Approved by EPA September 2013	Lower Bear/Malad Subbasin Agriculture: Completed May 2010 Central Bear (Bear River Mainstem) Agriculture: Completed October 2008 Northern Middle Bear Agriculture: Completed September 2008 Southern Middle Bear Agriculture: Completed September 2008 Bear Lake Subbasin Agriculture: Completed July 2008 Bear River/Malad River Forest Svc.: Completed April 2008 Daniels Watershed: Completed 2007 Cub River Watershed Agriculture: Completed September 2006
Beaver-Camas Subbasin	17040214	Approved by EPA August 2005	Under development
Big Lost River Subbasin	17040218	Approved by EPA August 2004 Addendum approved by EPA December 2011	Agriculture Completed May 2011	See TMDL Addendum
Big Wood River Subbasin	17040219	Approved by EPA May 2002 Errata approved by EPA February 2012 Temperature Addendum Approved by EPA December 2013	Agriculture Completed October 2006; Revised February 2014
Birch Creek Subbasin	17040216	Assessment Completed March 2005
Blackfoot River Subbasin	17040207	Approved by EPA April 2002 Brush Creek Temperature TMDL Approved by EPA November 2007 Blackfoot River TMDL Addendum Approved by EPA October 2013	Completed February 2006	Completed August 2015
Boise - Mores Creek Subbasin	17050112	Approved by EPA February 2010
Boise River (Lower) Subbasin	17050114	Approved by EPA January 2000 Assessments Completed December 2001 Addendum Approved by EPA June 2008 Lake Lowell TMDL Approved by EPA December 2010 Sediment and Bacteria Addendum Approved by EPA September 2015 Total Phosphorus Addendum Approved by EPA December 2015	Completed December 2003 Phosphorus Completed December 2008 Lake Lowell Completed June 2012	Completed February 2009
Boise River (North/Middle Fork) Subbasin	17050111	Assessment Completed November 2002	NA
Boise River (South Fork) Subbasin	17050113	Assessment Completed 2002 TMDL Approved by EPA March 2009	See TMDL Appendix J	See TMDL
Brownlee Reservoir Subbasin Includes Wildhorse River watershed	17050201	Approved by EPA November 2003 Wildhorse River TMDL Approved by EPA October 2007	Agriculture Completed September 2004; Revised 2014 Wildhorse River Agriculture Completed March 2010 Wildhorse River Forestry Completed February 2010	Weiser Flat Completed August 2015 Wildhorse River Completed August 2015
Bruneau River Subbasin	17050102	Approved by EPA March 2001 Jacks Creek Aquaculture Addendum TMDL Approved by EPA November 2007	Bruneau River Agriculture Completed June 2002; Revised March 2013 Jacks Creek Agriculture Completed June 2002; Revised March 2013
C.J. Strike Reservoir Subbasin	17050101	Approved by EPA June 2006	Agriculture Completed November 2007 Dissolved Oxygen Completed November 2007; Revised Dec. 2008
Camas Creek Subbasin	17040220	Approved by EPA September 2005	Agriculture Completed August 2007; Revised March 2013
Clark Fork River (Lower) Subbasin	17010213	Clark Fork/Pend Oreille TMDL Approved by EPA September 2000 and April 2001 Lower Clark Fork TMDL Approved by EPA October 2007	Agriculture Completed September 2014
Clearwater River (South Fork) Subbasin Includes Cottonwood Creek watershed	17060305	Cottonwood Creek TMDL Approved by EPA June 2000 Approved by EPA March 2004	Completed April 2006 Agriculture Completed March 2005; Revised January 2014
Clearwater River Subbasin Includes Hatwai Creek, Jim Ford Creek, Lindsay Creek, Lolo Creek tributaries, Potlatch River, and Winchester Lake - Lapwai Creek watersheds	17060306	Winchester Lake TMDL Approved by EPA March 1999 Jim Ford Creek TMDL Approved by EPA June 2000 Lindsay Creek TMDL Approved by EPA June 2007 Potlatch River TMDL Approved by EPA February 2009 Hatwai Creek TMDL Approved by EPA December 2010 Lolo Creek tributaries TMDL Approved by EPA December 2011	Winchester Lake Completed May 2000 Lindsay Creek Agriculture Completed April 2008 Potlatch River Revised March 2013 Jim Ford Creek Agriculture Revised February 2014
Clearwater River, North Fork (Upper) Subbasin	17060307	Approved by EPA December 2003	Under development
Clearwater River, North Fork (Lower) Subbasin	17060308	Approved by EPA January 2003 Five-Year Review and TMDL Addendum Approved by EPA November 2013	Completed May 2004 Addendum Completed December 2013	See 2013 TMDL Addendum
Coeur d'Alene Lake Subbasin Includes Black Lake watershed	17010303	Approved by EPA July 2000 Black Lake TMDL Approved by EPA August 2011 Coeur d'Alene Lake Tributaries Addendum Approved by EPA November 2012 Fernan Lake Addendum Approved by EPA November 2013	Completed 2002	See 2011 TMDL Addendum and Update
Coeur d'Alene River (South Fork) Subbasin	17010302	Approved by EPA August 2003	Under development
Coeur d'Alene River (Upper/North Fork) Subbasin	17010301	Approved by EPA February 2002 Addendum Approved by EPA April 2014	Under development	See North Fork Coeur d'Alene River Subbasin Watershed Restoration Effectiveness Review – Sediment Reductions and Biological Response Document and Success Story
Goose Creek Subbasin	17040211	Approved by EPA July 2004 Temperature Addendum Approved by EPA April 2012	Under development	Completed June 2010
Hangman Creek Subbasin	17010306	Approved by EPA September 2007
Henrys Fork (Upper and Lower) Subbasin	17040202 17040203	Assessment Completed December 1998 Addendum Approved by EPA August 2010	NA	Completed April 2010
Idaho Falls Subbasin	17040201	Approved by EPA November 2004	Under development
Jordan Creek Subbasin	17050108	Partially Approved/Partially Disapproved by EPA April 2011
Kootenai and Moyie Rivers Subbasins	17010101 17010104 17010105	Approved by EPA January 2007 2014 Temperature TMDL Addendum Approved by EPA October 2014	Draft Completed November 2005
Lemhi River Subbasin	17060204	Approved by EPA March 2000 Addendum Approved by EPA February 2013	Completed September 2001	See October 2012 TMDL Addendum
Little Lost River Subbasin	17040217	Approved by EPA September 2000 2015 Temperature Addendum Approved by EPA January 2016	Completed February 2002	Completed July 2015
Little Salmon River Subbasin	17060210	Approved by EPA March 2006 Addendum Approved by EPA April 2013	Completed November 2008	Completed April 2012
Little Wood River Subbasin	17040221	Approved by EPA September 2005	Agriculture Completed March 2010
Lochsa River Subbasin	17060303	Assessment Completed September 1999 Addendum Submitted to EPA May 2012	NA
Medicine Lodge Creek Subbasin	17040215	Approved by EPA May 2003	Agriculture Completed July 2002
Owyhee River (Middle) Subbasin	17050107	Approved by EPA February 2000 Watershed Temperature TMDLs Approved by EPA July 2012	Completed February 2002	Completed June 2009
Owyhee River (South Fork) Subbasin	17050105	Approved by EPA March 2000 Watershed Temperature TMDLs Approved by EPA July 2012	Under development
Owyhee River (Upper) Subbasin	17050104	Approved by EPA March 2003 Watershed Temperature TMDLs Approved by EPA July 2012	Agriculture Completed October 2004	Completed June 2009
Pahsimeroi River Subbasin	17060202	Approved by EPA December 2001 Addendum Approved by EPA April 2014	Agriculture Completed September 2005	See 2013 TMDL Addendum
Palisades Subbasin Includes Fall Creek watershed	17040104	Approved by EPA February 2001 Fall Creek TMDL Approved by EPA April 2004 2013 Addendum and Five-Year Review Approved by EPA February 2014	Completed August 2002	See 2013 TMDL Addendum
Palouse River Subbasin Includes Cow Creek and Paradise Creek watersheds	17060108	Paradise Creek TMDL Approved by EPA February 1998 Palouse River Tributaries TMDL Approved by EPA March 2005 Cow Creek TMDL Approved by EPA February 2006 South Fork Palouse River TMDL Approved by EPA October 2007 Cow Creek TMDL Addendum Approved by EPA April 2014 Paradise Creek TMDL 2015 Bacteria Addendum Approved by EPA November 2016	Paradise Creek Completed December 1999 Cow Creek Agriculture Revised May 2013 Cow Creek Temperature July 2014	Completed December 2015
Payette River (Middle Fork) Subbasin	17050121	Approved by EPA July 2000 Temperature TMDL Approved by EPA December 2007	Completed August 2003	Completed February 2009
Payette River (North Fork) Subbasin Includes Cascade Reservoir watershed	17050122 17050123	Cascade Reservoir Phase I Approved by EPA May 1996 Cascade Reservoir Phase II Approved by EPA April 1999 North Fork Payette River TMDL Approved by EPA August 2005 Cascade Reservoir Tributary Addendum Approved by EPA February 2012	Cascade Reservoir All Phases Completed June 2000 North Fork Payette River Completed June 2007	Cascade Reservoir All Phases Completed February 2009 North Fork Payette River Completed July 2012
Payette River (South Fork) Subbasin	17050120	Assessment Completed July 2005	NA	Completed January 2011
Payette River Subbasin Includes Bissel Creek watershed	17050122	Lower Payette River TMDL Approved by EPA May 2000 Bissel Creek TMDL Approved by EPA October 2003 Big Willow Creek Addendum Approved by EPA July 2008 Little Willow Creek Addendum Approved by EPA December 2013	Completed January 2003 Big Willow Completed August 2010 Bissel Creek Completed April 2006; Revised 2014	Completed February 2010
Pend Oreille Lake Subbasin	17010214	Clark Fork-Pend Oreille TMDL Approved by EPA September 2000 and April 2001 Nearshore Waters TMDL Approved by EPA October 2002 Temperature TMDL Addendum Approved by EPA April 2008 Sediment TMDL Addendum Approved by EPA January 2008 Pack River Nutrients TMDL Addendum Approved by EPA December 2008	Nearshore Waters Completed December 2004 Pack River Completed July 2006 Cocolalla Lake, Cocolalla Creek, and Hoodoo Creek Completed July 2004	Completed June 2015
Portneuf River Subbasin	17040208	Approved by EPA April 2001 Revision & Addendum Approved by EPA August 2010	Completed July 2003	See Revised TMDL
Priest River Subbasin	17010215	Approved by EPA March 2002 Addendum Approved by EPA June 2003 Temperature Addendum Submitted to EPA August 2015	Under development
Raft River Subbasin	17040210	Approved by EPA July 2004 Temperature Addendum Approved by EPA April 2012	Agriculture Completed July 2006	Completed September 2011
Salmon Falls Creek Subbasin	17040213	Mid Snake River TMDL Approved by EPA April 1997 Mid Snake River TMDL Modification Approved by EPA 2005 Salmon Falls Creek TMDL Approved by EPA February 2008	Upper Snake Rock June 2001 Agriculture Completed February 2009
Salmon River (Lower) and Hells Canyon Subbasins	17060209 17060101	Approved by EPA February 2010
Salmon River (Middle) - Chamberlain Creek Subbasin	17060207	Approved by EPA January 2003	Under development
Salmon River (Middle) - Panther Creek Subbasin	17060203	Approved by EPA July 2001	Completed November 2002
Salmon River (South Fork) Subbasin	17060208	Approved by EPA January 1992 Addendum Approved by EPA October 2012	Under development	Completed March 2011
Salmon River (Upper and Lower Middle Forks) Subbasin	17060205 17060206	Approved by EPA February 2009
Salmon River (Upper) Subbasin	17060201	Approved by EPA March 2003	Agriculture Completed February 2007
Salt River Subbasin	17040105	Sent to EPA for Approval August 2015
Selway River (Lower) Subbasin	17060302	SBA December 2000	NA
Snake (Lower)-Asotin Subbasin Includes Tammany Creek watershed	17060103	Approved by EPA February 2002 Addendum Approved by EPA December 2010	Under development
Snake River - Hells Canyon Subbasins	17060101 17050103 17050115 17050201	Approved by EPA September 2004	See TMDL for Implementation Strategies
Snake River (Middle) - Succor Creek Subbasin	17050103	Approved by EPA January 2004 Addendum Approved by EPA December 2007 Tributaries Sediment TMDL Addendum Approved by EPA October 2013	Completed July 2005; Revised 2014	Completed September 2011
Snake River (Upper Snake-Rock) Subbasin	17040212	Mid Snake TMDL Phase I Approved by EPA April 1997 Upper Snake Rock TMDL Approved by EPA August 2000 Upper Snake Rock TMDL Modification Approved by EPA September 2005 City of Twin Falls TSS Revision Submitted to EPA January 2011	Completed June 2001	Completed April 2010
Spokane River (Upper) Subbasin	17010305	Approved by EPA January 2001 Fish Creek Watershed Assessment and TMDLs Approved by EPA June 2008	Underdevelopment
St. Joe River Subbasin Includes St. Maries River watershed	17010304	Approved by EPA August 2003 Temperature TMDL Addendum Approved by EPA December 2011	Agriculture Completed November 2003	Completed September 2011
Teton River Subbasin	17040204	Approved by EPA February 2003 and September 2003	Agriculture Completed April 2005; Revised February 2014
Walcott Lake Subbasin	17040209	Approved by EPA June 2000 Fall and Rueger Springs Creeks Aquaculture Addendum TMDLs Approved by EPA March 2007 Lake Walcott TMDL 2013 Addendum: Marsh Creek Approved by EPA January 2015	Completed December 2001	Completed May 2012
Weiser River Subbasin	17050124	Approved by EPA January 2007 Temperature Addendum Approved by EPA January 2007	Agriculture: Revised May 2013	Completed June 2014
Willow Creek Subbasin	17040205	Approved by EPA June 2004	Agriculture Completed January 2011

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Table of Subbasin Assessments, TMDLs, Implementation Plans, and Five-Year Reviews

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Department of
Environmental Quality