Nonpoint Source Pollution
Total Maximum Daily Loads

The schedule and status of SD DENR nonpoint source pollution total maximum daily load (TMDL) projects, developed in accordance with Section 303(d) of the federal Clean Water Act, are found through links in the map and table below. Public participation is strongly encouraged throughout all project phases.

National 303(d) Program Vision

The National 303(d) Program Vision is a new effort by EPA and the states to more effectively restore and protect waters by using a systematic process of prioritizing TMDL development and implementing alternative approaches and protection activities. Six elements of the South Dakota Vision are discussed and include: engagement of stakeholders and the public, the TMDL prioritization process, protection activities, integrating the Vision into other programs, alternatives to developing TMDLs and assessment activities used in the Vision.

Statewide TMDLs
Segment or Lake Name	Segment or Lake Location	Impairment	Status	Status Date	Initial Listing
Lakes
Statewide	Statewide	Mercury in Fish Tissue	TMDL Approved	Mar. 2016	N/A
Statewide	2016 Erratum to Mercury TMDL	Mercury in Fish Tissue	TMDL Approved	Nov. 2016	N/A
Statewide	2016 Addendum to Mercury TMDL	Mercury in Fish Tissue	TMDL Approved	Aug. 2016	2016
Statewide	2022 Addendum to Mercury TMDL	Mercury in Fish Tissue	TMDL Approved	Sept 2022	N/A
Statewide	2024 Addendum to Mercury TMDL	Mercury in Fish Tissue	TMDL in Public Notice	April 2024	N/A
Statewide	Statewide Bacteria Translation	E. coli	TMDL Approved	Aug. 2022	N/A
Black Hills- Custer and Pennington Counties	Addendum to the TMDL Evaluation of pH for Reservoirs in the Black Hills Ecoregion	pH	TMDL Approved	Aug. 2016	N/A
Bad River
Segment or Lake Name	Segment or Lake Location	Impairment	Status	Status Date	Initial Listing
Lakes
Cookstove Lake	Lyman County	Mercury in Fish Tissue	Not Initiated		2022
Freeman Lake	Jackson County	Chlorophyll-a	Not Initiated		2014
Freeman Lake	Jackson County	Nitrate/Selenium	TMDL Approved	Feb. 2001	1998
Freeman Lake	Jackson County	DO	Not Initiated		2010
Freeman Lake	Jackson County	TDS/Cond	TMDL Approved	Sept. 2012	2006
Hayes Lake	Stanley County	Mercury in Fish Tissue	TMDL Approved	March 2016	2016
Hayes Lake	Stanley County	TSI/Chlorophyll-a	TMDL Approved	Sept. 2004	1998
Hayes Lake	Stanley County	DO	Not Initiated		2020
Murdo Dam	Jones County	DO	Not Initiated		2012
Murdo Dam	Jones County	Mercury in Fish Tissue	TMDL Approved	March 2016	2016
Sheriff Dam	Jones County	Mercury in Fish Tissue	TMDL Approved	April 2016	2016
Waggoner Lake	Haakon County	Chlorophyll-a	Not Initiated		2010
Streams
Bad River	Stanley County line to mouth	Cond	Not Initiated		2014
Bad River	Stanley County line to mouth	E. Coli	Not Initiated		2016
Bad River	Stanley County line to mouth	TSS	TMDL Approved	Feb 2001	1998
Belle Fourche River
Segment or Lake Name	Segment or Lake Location	Impairment	Status	Status Date	Initial Listing
Lakes
Belle Fourche Reservoir	Butte County	Mercury in Fish Tissue	TMDL Approved	March 2016	2016
Iron Creek Lake	Lawrence County	Temp	Not Initiated		2010
Mirror Lake East	Lawrence County	Temp	Not Initiated		2006
Mirror Lake West	Lawrence County	Temp	Not Initiated		2008
Newell City Pond	Butte County	Temp	Not Initiated		2010
Newell Lake	Butte County	Mercury in Fish Tissue	TMDL Approved	March 2016	2012
Streams
Bear Butte Creek	Strawberry Creek to near Bear Den Mountain	TSS	TMDL Approved	Aug. 2007	2006
Belle Fourche River	Wyoming border to Redwater River	TSS	TMDL Approved	Feb. 2005	2002
Belle Fourche River	Wyoming border to Redwater River	Fecal	TMDL Approved	Oct. 2011	2002
Belle Fourche River	Wyoming border to Redwater River	E. Coli	TMDL Approved	Aug. 2017	2012
Belle Fourche River	Redwater River to Whitewood Creek	TSS	TMDL Approved	Feb. 2005	2002
Belle Fourche River	Redwater River to Whitewood Creek	E. Coli	Not Initiated		2020
Belle Fourche River	Whitewood Creek to Willow Creek	TSS	TMDL Approved	Feb. 2005	2002
Belle Fourche River	Whitewood Creek to Willow Creek	E. Coli	Not Initiated		2016
Belle Fourche River	Willow Creek to Alkali Creek	TSS	TMDL Approved	Feb. 2005	1998
Belle Fourche River	Willow Creek to Alkali Creek	E. Coli	Not Initiated		2020
Belle Fourche River	Alkali Creek to mouth	E. Coli	TMDL Approved	Oct. 2011	2002
Belle Fourche River	Alkali Creek to mouth	Fecal	TMDL Approved	Oct. 2011	2002
Belle Fourche River	Alkali Creek to mouth	TSS	TMDL Approved	Feb. 2005	2002
Deadwood Creek	Rutabaga Gulch to Whitewood Creek	E. coli	TMDL Approved	Oct. 2020	2014
Elm Creek	S8, T8N, R10E, to Belle Fourche River	E. coli	Not Initiated		2022
Elm Creek	S8, T8N, R10E, to Belle Fourche River	Cond	Not Initiated		2022
Elm Creek	S8, T8N, R10E, to Belle Fourche River	TSS	Not Initiated		2022
False Bottom Creek	S26, T5N, R2E, to W Branch False Bottom	Selenium	Not Initiated		2022
Horse Creek	Indian Creek to mouth	TSS	TMDL Approved	Feb. 2005	2002
Strawberry Creek	Headwaters to mouth	Cd	TMDL Approved	April 2010	1998
West Strawberry Creek	Headwaters to mouth	Fecal	TMDL Approved	April 2011	2008
Whitewood Creek	Deadwood Creek to Spruce Gulch	E. coli	TMDL Approved	July 2011	1998
Whitewood Creek	Deadwood Creek to Spruce Gulch	Fecal	TMDL Approved	July 2011	1998
Whitewood Creek	Spruce Gulch to Sandy Creek	E. coli	TMDL Approved	Aug. 2022	2012
Whitewood Creek	Sandy Creek to I-90	pH	Not Initiated		2006
Whitewood Creek	I-90 to Crow Creek	E. coli	Not Initiated		2014
Whitewood Creek	I-90 to Crow Creek	pH	Not Initiated		2010
Whitewood Creek	Crow Creek to mouth	TSS	Not Initiated	April 2014	2010
Big Sioux River
Segment or Lake Name	Segment or Lake Location	Impairment	Status	Status Date	Initial Listing
Lakes
Albert, Lake	Kingsbury County	Mercury in Fish Tissue	TMDL Approved	March 2016	2016
Albert, Lake	Kingsbury County	Chlorophyll-a	Not Initiated		2020
Alvin, Lake	Lincoln County	TSI/Fecal	TMDL Approved	Nov. 2001	1998
Alvin, Lake	Lincoln County	Temp	Not Initiated		2022
Antelope Lake	Day County	Mercury in Fish Tissue	TMDL Approved	March 2016	2016
Bitter Lake	Day County	Mercury in Fish Tissue	TMDL Approved	March 2016	2004
Bitter Lake	Day County	Chlorophyll-a	Not Initiated		2022
Blue Dog Lake	Day County	TSI/Fecal	TMDL Approved	Feb. 2001	1998
Brant Lake	Lake County	TSI	TMDL Approved	April 1999	1998
Brush Lake	Brookings County	Mercury in Fish Tissue	TMDL Approved	March 2016	2016
Bullhead Lake	Deuel County	Chlorophyll-a	Not Initiated	March 2017	2010
Campbell, Lake	Brookings County	Chlorophyll-a	TMDL Approved		2022
Clear Lake	Deuel County	TSI/Sed	TMDL Approved	Feb. 2001	1998
Clear Lake	Hamlin County	Mercury in Fish Tissue	TMDL Approved	March 2016	2016
Clear Lake	Hamlin County	E. Coli	Not Initiated		2022
Covell Lake	Minnehaha County	Chlorophyll-a	Not Initiated		2022
Covell Lake	Minnehaha County	pH	Not Initiated		2022
Covell Lake	Minnehaha County	Temp	Not Initiated		2022
Diamond Lake	Minnehaha County	Mercury in Fish Tissue	TMDL Approved	March 2016	2016
Dry Lake	Codington County	Mercury in Fish Tissue	TMDL Approved	March 2016	2016
Dry Lake #2	Clark County	Mercury in Fish Tissue	TMDL Approved	March 2016	2016
East Oakwood Lake	Brookings County	pH/TSI/Chlorophyll-a	TMDL Approved	June 2008	1998
Enemy Swim Lake	Day County	Mercury in Fish Tissue	TMDL Approved	March 2016	2016
Goldsmith Lake	Brookings County	Mercury in Fish Tissue	TMDL Approved	March 2016	2016
Goldsmith Lake	Brookings County	Chlorophyll-a	Not Initiated		2022
Goose Lake	Codington County	Mercury in Fish Tissue	TMDL Approved	March 2016	2016
Herman, Lake	Lake County	Mercury in Fish Tissue	TMDL Approved	March 2016	2016
Herman, Lake	Lake County	TSI/Chlorophyll-a	TMDL Approved	Sept. 2004	1998
Kampeska, Lake	Codington County	Mercury in Fish Tissue	TMDL Approved	March 2016	2016
Kampeska, Lake	Codington County	Nutrients/Sed	Special Approvals	Dec. 1996	Pre 1998
Long Lake	Codington County	Mercury in Fish Tissue	TMDL Approved	March 2016	2014
Madison, Lake	Lake County	TSI/Chlorophyll-a	TMDL Approved	April 1999	1998
Minnewasta Lake	Day County	Chlorophyll-a	Not Initiated		2014
Norden, Lake	Hamlin County	DO	Not Initiated		2022
Minnewasta Lake	Day County	Mercury in Fish Tissue	TMDL Approved	March 2016	2014
North Island Lake	Minnehaha County	Mercury in Fish Tissue	TMDL Approved	March 2016	2008
Pelican Lake	Codington County	Nutrients/Sed	Special Approvals	Dec. 1996	Pre 1998
Poinsett, Lake	Hamlin County	Mercury in Fish Tissue	TMDL Approved	March 2016	2016
Poinsett, Lake	Hamlin County	Nutrients	TMDL Approved	Dec. 1996	Pre 1998
Poinsett, Lake	Hamlin County	E. Coli	Not Initiated		2022
Reid Lake	Clark County	Mercury in Fish Tissue	TMDL Approved	March 2016	2012
Rush Lake	Day County	Mercury in Fish Tissue	TMDL Approved	March 2016	2016
School Lake	Deuel County	TSI	TMDL Approved	Sept. 2008	1998
School Lake	Deuel County	pH	Not Initiated		2022
Scott Lake	Minnehaha County	Mercury in Fish Tissue	Not Initiated		2020
Sinai, Lake	Brookings County	Mercury in Fish Tissue	TMDL Approved	March 2016	2016
Swan Lake	Clark County	Mercury in Fish Tissue	TMDL Approved	March 2016	2014
Twin Lake/W. Hwy 81	Kingsbury County	Mercury in Fish Tissue	TMDL Approved	March 2016	2004
Twin Lake/W. Hwy 81	Kingsbury County	E. Coli	Not Initiated		2022
Twin Lakes	Minnehaha County	Mercury in Fish Tissue	TMDL Approved	March 2016	2010
Wall Lake	Minnehaha County	DO	Not Initiated		2022
Waubay Lake	Day County	Chlorophyll-a	Not Initiated		2014
Waubay Lake	Day County	Mercury in Fish Tissue	TMDL Approved	March 2016	2016
West Oakwood Lake	Brookings County	TSI/Chlorophyll-a	TMDL Approved	June 2008	2002
Streams
Bachelor Creek	S28, T106N, R 50W to Big Sioux River	E. Coli	Not Initiated		2020
Bachelor Creek	S28, T106N, R 50W to Big Sioux River	DO	Not Initiated		2022
Beaver Creek	Big Sioux River to S9, T98N, R49W	Fecal	TMDL Approved	Aug. 2011	2010
Beaver Creek	Split Rock Creek to SD-Minn. border	E. coli	TMDL Approved	Nov 2020	2014
Beaver Creek	Split Rock Creek to SD-Minn. border	Fecal/TSS	TMDL Approved	May 2008	2008
Beaver Creek	Big Sioux River to S9, T98N, R49W	E. Coli	Not Initiated		2020
Big Sioux River	S28, T121N, R52W to Lake Kampeska	DO	Not Initiated		2002
Big Sioux River	S28, T121N, R52W to Lake Kampeska	E. coli	TMDL Approved	April 2020	2010
Big Sioux River	Willow Creek to Stray Horse Creek	Fecal	TMDL Approved	June 2008	2004
Big Sioux River	Willow Creek to Stray Horse Creek	E. coli	TMDL Approved	Aug. 2011	2010
Big Sioux River	Stray Horse Creek to near Volga	E. coli	Not Initiated		2016
Big Sioux River	Stray Horse Creek to near Volga	DO	Not Initiated		2020
Big Sioux River	Stray Horse Creek to near Volga	TSS	Not Initiated		2022
Big Sioux River	Near Volga to Brookings	TSS	Not Initiated		2004
Big Sioux River	Brookings to Brookings/Moody County Line	TSS	Not Initiated		1998
Big Sioux River	Brookings/Moody County Line to S2, T104N, R49W	Mercury in Fish Tissue	TMDL Approved	March 2016	2016
Big Sioux River	Brookings/Moody County Line to S2, T104N, R49W	E. coli	Not Initiated		2016
Big Sioux River	Brookings/Moody County Line to S2, T104N, R49W	TSS	TMDL Approved	May 2008	1998
Big Sioux River	S2, T104N, R49W to I-90	E. coli	TMDL Approved	July 2019	2010
Big Sioux River	S2, T104N, R49W to I-90	Fecal	TMDL Approved	May 2008	1998
Big Sioux River	S2, T104N, R49W to I-90	TSS	TMDL Approved	July 2019	1998
Big Sioux River	I-90 to diversion return	E. coli	TMDL Approved	July 2019	2010
Big Sioux River	I-90 to diversion return	TSS	TMDL Approved	July 2019	1998
Big Sioux River	I-90 to diversion return	TDS	Not Initiated		2022
Big Sioux River	Diversion return to SF WWTF	E. coli	TMDL Approved	July 2019	2010
Big Sioux River	Diversion return to SF WWTF	TSS	TMDL Approved	July 2019	1998
Big Sioux River	SF WWTF to above Brandon	E. coli	TMDL Approved	July 2019	2010
Big Sioux River	SF WWTF to above Brandon	TSS	TMDL Approved	July 2019	1998
Big Sioux River	Above Brandon to Nine Mile Creek	Fecal	TMDL Approved	Jan. 2008	1998
Big Sioux River	Above Brandon to Nine Mile Creek	E. Coli	Not Initiated		2012
Big Sioux River	Above Brandon to Nine Mile Creek	TSS	Not Initiated		2004
Big Sioux River	Nine Mile Creek to near Fairview	E. coli	Not Initiated		2010
Big Sioux River	Nine Mile Creek to near Fairview	Fecal	TMDL Approved	Jan. 2008	1998
Big Sioux River	Nine Mile Creek to near Fairview	TSS	Not Initiated		1998
Big Sioux River	Fairview to near Alcester	E. coli	Not Initiated		2010
Big Sioux River	Fairview to near Alcester	Fecal	TMDL Approved	Jan. 2008	1998
Big Sioux River	Fairview to near Alcester	TSS	TMDL Approved	Feb. 2010	1998
Big Sioux River	Near Alcester to Indian Creek	E. coli	Not Initiated		2010
Big Sioux River	Near Alcester to Indian Creek	Fecal	TMDL Approved	Jan. 2008	1998
Big Sioux River	Near Alcester to Indian Creek	TSS	TMDL Approved	Feb. 2010	1998
Big Sioux River	Indian Creek to mouth	E. coli	Not Initiated		2010
Big Sioux River	Indian Creek to mouth	Fecal	TMDL Approved	Jan. 2008	1998
Big Sioux River	Indian Creek to mouth	TSS	TMDL Approved	Feb. 2010	1998
Brule Creek	Big Sioux River to its East and West Forks	E. coli	TMDL Approved	Nov 2020	2014
Brule Creek	Big Sioux River to its East and West Forks	Fecal	TMDL Approved	June 2011	2008
Brule Creek	Big Sioux River to confluence of its east and west forks	TSS	TMDL Approved	March 2022	2018
East Brule Creek	Confluence with Brule Creek to S3, T95N, R49W	Fecal	TMDL Approved	March 2011	2008
East Brule Creek	Confluence with Brule Creek to S3, T95N, R49W	E. Coli	Not Initiated		2020
East Brule Creek	Confluence with Brule Creek to S3, T95N, R49W	TSS	Not Initiated		2008
Flandreau Creek	Big Sioux River to Minnesota Border	E. coli	Not Initiated		2014
Flandreau Creek	Big Sioux River to Minnesota Border	Fecal	TMDL Approved	May 2008	2008
Hidewood Creek	Big Sioux River to U.S. Highway 15	E. Coli	Not Initiated		2020
Hidewood Creek	Big Sioux River to U.S. Highway 15	Fecal	TMDL Approved	June 2008	2008
Jack Moore Creek	Moody County	Fecal	TMDL Approved	May 2008	2008
Medary Creek	MN Border to Big Sioux River	E. Coli	TMDL Approved	April 2023	2020
North Deer Creek	Brookings County	Fecal	TMDL Approved	May 2008	2008
Peg Munky Run Creek	Big Sioux River to S17, T113N, R50W	Fecal	TMDL Approved	Aug. 2011	2008
Peg Munky Run Creek	Big Sioux River to S17, T113N, R50W	E. Coli	Not Initiated		2022
Pipestone Creek	Moody and Minnehaha Counties	E. coli	TMDL Approved	Sept. 2012	2010
Pipestone Creek	Moody and Minnehaha Counties	Fecal	TMDL Approved	May 2008	2008
Pipestone Creek	Moody and Minnehaha Counties	TSS	Not Initiated		2020
Six Mile Creek	Brookings County	E. coli	TMDL Approved	Sept. 2022	2014
Six Mile Creek	Brookings County	DO	Not Initiated		2020
Skunk Creek	Brandt Lake to mouth	E. coli	Not Initiated	Dec. 2012	2014
Skunk Creek	Brandt Lake to mouth	Fecal	TMDL Approved	May 2008	2008
Split Rock Creek	At Corson	Fecal	TMDL Approved	May 2008	2006
Split Rock Creek	West Pipestone Creek to Big Sioux River	E. Coli	Not Initiated		2018
Split Rock Creek	At Corson	TSS	TMDL Approved	May 2008	2006
Split Rock Creek	SD/MN Border to West Pipestone Creek	E. Coli	Not Initiated		2022
Spring Creek	Big Sioux River to S22, T109, R47W	Fecal	TMDL Approved	May 2008	2008
Spring Creek	Big Sioux River to S22, T109, R47W	E. Coli	Not Initiated		2022
Spring Creek	Big Sioux River to S22, T109, R47W	TSS	Not Initiated		2022
Stray Horse Creek	Big Sioux River to S26, T116, R51W	Fecal	TMDL Approved	June 2008	2008
Union Creek	BSR to confluence with East and West Forks	Fecal	TMDL Approved	Aug. 2011	2008
Union Creek	BSR to confluence with East and West Forks	E. Coli	Not Initiated		2022
Union Creek	BSR to confluence with East and West Forks	TSS	Not Initiated		2008
Willow Creek	Big Sioux River to S7, T117N, R50W	Fecal	TMDL Approved	June 2008	2008
Willow Creek	Big Sioux River to S7, T117N, R50W	E. Coli	Not Initiated		2018
Willow Creek	Big Sioux River to S7, T117N, R50W	DO	Not Initiated		2022
Cheyenne River
Segment or Lake Name	Segment or Lake Location	Impairment	Status	Status Date	Initial Listing
Lakes
Center Lake	Custer County	TSI	TMDL Approved	Aug. 2007	1998
Center Lake	Custer County	pH	TMDL Approved	Aug. 2007	1998
Center Lake	Custer County	Temp	Not Initiated		2010
Cold Brook Reservoir	Fall River County	Temp	Not Initiated		2006
Curlew Lake	Meade County	Mercury in Fish Tissue	TMDL Approved	March 2016	2016
Deerfield Lake	Pennington County	Temp	Not Initiated		2010
Durkee Lake	Meade County	Mercury in Fish Tissue	TMDL Approved	Sept. 2022	2020
Durkee Lake	Meade County	pH	Not Initiated		2022
Horsethief Lake	Pennington County	pH	TMDL Approved	March 2011	1998
Horsethief Lake	Pennington County	Temp	Not Initiated		2022
Legion Lake	Custer County	pH	TMDL Approved	Sept. 2008	2006
Legion Lake	Custer County	TSI	TMDL Approved	Sept. 2008	1998
New Wall Lake	Pennington County	DO	Not Initiated		2022
New Wall Lake	Pennington County	Mercury in Fish Tissue	Not Initiated		2018
Pactola Lake	Pennington County	Temp	Not Initiated		2020
Sheridan Lake	Pennington County	Mercury in Fish Tissue	TMDL Approved	March 2016	2016
Sheridan Lake	Pennington County	DO	Not Initiated		2006
Sheridan Lake	Pennington County	Temp	Not Initiated		2006
Sheridan Lake	Pennington County	TSI	TMDL Approved	Aug. 2006	2002
Stockade Lake	Custer County	Mercury in Fish Tissue	TMDL Approved	March 2016	2016
Sylvan Lake	Custer County	TSI	TMDL Approved	Sept. 2005	1998
Sylvan Lake	Custer County	Temp	Not Initiated		2008
Sylvan Lake	Custer County	pH	TMDL Approved	August 2016	2008
Streams
Battle Creek	Teepee Gulch Creek to SD Hwy 79	E. Coli	TMDL Approved	Feb. 2014	2012
Battle Creek	Teepee Gulch Creek to SD Hwy 79	Fecal	TMDL Approved	Feb. 2014	2012
Battle Creek	SD Hwy 79 to mouth	E. Coli	TMDL Approved	Feb. 2014	2012
Battle Creek	SD Hwy 79 to mouth	Fecal	TMDL Approved	Feb. 2014	2012
Beaver Creek	Wyoming border to Cheyenne River	Cond	Not Initiated		2004
Beaver Creek	Wyoming border to Cheyenne River	Salinity/SAR	Not Initiated		2006
Beaver Creek	Wyoming border to Cheyenne River	Fecal	TMDL Approved	March 2010	2006
Beaver Creek	Near Buffalo Gap	Fecal	TMDL Approved	Sept. 2012	2006
Cheyenne River	Wyoming border to Beaver Creek	Cond	Not Initiated		2004
Cheyenne River	Wyoming border to Beaver Creek	SAR/Salinity	Not Initiated		2004
Cheyenne River	Wyoming border to Beaver Creek	TDS	Not Initiated		2004
Cheyenne River	Wyoming border to Beaver Creek	TSS	Not Initiated		2012
Cheyenne River	Beaver Creek to Cascade Creek	E. coli	Not Initiated		2014
Cheyenne River	Beaver Creek to Cascade Creek	Cond	Not Initiated		2004
Cheyenne River	Beaver Creek to Cascade Creek	TSS	Not Initiated		2012
Cheyenne River	Beaver Creek to Cascade Creek	TDS	Not Initiated		2004
Cheyenne River	Beaver Creek to Cascade Creek	Salinity/SAR	Not Initiated		2008
Cheyenne River	Cascade Creek to Angostura Reservoir	TSS	Not Initiated		2018
Cheyenne River	Fall River to Cedar Creek	E. coli	TMDL Approved	Sept. 2010	2002
Cheyenne River	Fall River to Cedar Creek	Fecal	TMDL Approved	Sept. 2010	2002
Cheyenne River	Fall River to Cedar Creek	TSS	Not Initiated		2002
Cheyenne River	Cedar Creek to Belle Fourche River	E. coli	TMDL Approved	Sept. 2010	1998
Cheyenne River	Cedar Creek to Belle Fourche River	Fecal	TMDL Approved	Sept. 2010	1998
Cheyenne River	Cedar Creek to Belle Fourche River	TSS	Not Initiated		1998
Cheyenne River	Belle Fourche River to Bull Creek	E. coli	TMDL Approved	Sept. 2010	1998
Cheyenne River	Belle Fourche River to Bull Creek	Fecal	TMDL Approved	Sept. 2010	1998
Cheyenne River	Belle Fourche River to Bull Creek	TSS	Not Initiated		1998
Cheyenne River	Bull Creek to Lake Oahe	E. coli	TMDL Approved	Sept. 2010	2002
Cheyenne River	Bull Creek to Lake Oahe	Fecal	TMDL Approved	Sept. 2010	2002
Cheyenne River	Bull Creek to Lake Oahe	TSS	Not Initiated		2002
Elk Creek	S9, T3N, R7E to S27, T4N, R3E	E. Coli	Not Initiated		2018
Fall River	Hot Springs to mouth	Temp	Not Initiated		2004
Highland Creek	Wind Cave National Park and near Pringle	pH	Not Initiated		2006
Highland Creek	Wind Cave National Park and near Pringle	Temp	Not Initiated		2006
Horsehead Creek	At Oelrichs	Cond	Not Initiated		2004
Rapid Creek	Canyon Lake to S15, T1N, R8E	Fecal	TMDL Approved	Sept. 2010	1998
Rapid Creek	Canyon Lake to S15, T1N, R8E	E. Coli	TMDL in Public Notice	March 2024	2018
Rapid Creek	S15, T1N, R8E to above Farmingdale	E. coli	TMDL Approved	Nov 2020	2014
Rapid Creek	S15, T1N, R8E to above Farmingdale	Fecal	TMDL Approved	Sept. 2010	1998
Rapid Creek	Above Farmingdale to Cheyenne River	Fecal	TMDL Approved	Sept. 2010	1998
Rapid Creek	Above Farmingdale to Cheyenne River	E. coli	TMDL Approved	Sept. 2010	2010
Rapid Creek	Above Farmingdale to Cheyenne River	TSS	TMDL Approved	Sep. 2011	1998
Spring Creek	Headwaters to Sheridan Lake	Fecal	TMDL Approved	Dec. 2008	2008
Spring Creek	Headwaters to Sheridan Lake	E. coli	TMDL Approved	Sept. 2022	2006
Spring Creek	Headwaters to Sheridan Lake	TSS	Not Initiated		2014
Victoria Creek	Near Rapid City	Temp	Not Initiated		2004
Grand River
Segment or Lake Name	Segment or Lake Location	Impairment	Status	Status Date	Initial Listing
Lakes
East Lemmon Lake	Perkins County	Mercury in Fish Tissue	TMDL Approved	Sept. 2022	2018
Isabel, Lake	Dewey County	Mercury in Fish Tissue	TMDL Approved		2004
Isabel, Lake	Dewey County	Chlorophyll-a	Not Initiated		2010
Pudwell Dam	Corson County	Mercury in Fish Tissue	TMDL Approved		2010
Shadehill Reservoir	Perkins County	Mercury in Fish Tissue	TMDL Approved	March 2016	2016
Shadehill Reservoir	Perkins County	Salinity/SAR	Not Initiated		2002
Streams
Bull Creek	SF Grand to S15,T21N,R5E	Salinity/SAR	Not Initiated		2012
Crooked Creek	ND Border to S34,T23N,R5E	Cond	Not Initiated		2014
Crooked Creek	ND Border to S34,T23N,R5E	Salinity/SAR	Not Initiated		2012
Crooked Creek	ND Border to S34,T23N,R5E	TDS	Not Initiated		2022
Grand River, N Fork	ND border to Shadehill Reservoir	Salinity/SAR	Not Initiated		2004
Grand River, N Fork	ND border to Shadehill Reservoir	E. Coli	Not Initiated		2022
Grand River, N Fork	ND border to Shadehill Reservoir	Cond	Not Initiated		2018
Grand River, S Fork	S13, T18N, R3E to SD Hwy 79	E. coli	Not Initiated		2016
Grand River, S Fork	S13, T18N, R3E to SD Hwy 79	TSS	Not Initiated		2004
Grand River, S Fork	S13, T18N, R3E to SD Hwy 79	Salinity/SAR	Not Initiated		2006
Grand River, S Fork	SD Hwy 79 to Shadehill Reservoir	E. coli	Not Initiated		2016
Grand River, S Fork	SD Hwy 79 to Shadehill Reservoir	Salinity/SAR	Not Initiated		2002
Grand River, S Fork	SD Hwy 79 to Shadehill Reservoir	TSS	Not Initiated		1998
Grand River	Shadehill Reservoir to Corson County line	Salinity/SAR	Not Initiated		1998
Grand River	Corson County line to Bullhead	E. coli	Not Initiated		2014
Grand River	Corson County line to Bullhead	Salinity/SAR	Not Initiated		2004
Grand River	Corson County line to Bullhead	TSS	Not Initiated		2004
Grand River	Bullhead to mouth	E. coli	Not Initiated		2010
Grand River	Bullhead to mouth	TSS	Not Initiated		2004
James River
Segment or Lake Name	Segment or Lake Location	Impairment	Status	Status Date	Initial Listing
Lakes
Amsden Dam	Day County	Mercury in Fish Tissue	TMDL Approved	March 2016	2016
Beaver Lake	Yankton County	DO	Not Initiated		2022
Bierman Dam	Spink County	Chlorophyll-a	Not Initiated		2010
Lake Byron	Beadle County	Nutrients/Sed	Special Approvals	April 1999	Pre-1998
Lake Carthage	Miner County	Chlorophyll-a	Not Initiated	March 2017	2010
Lake Carthage	Miner County	Mercury in Fish Tissue	TMDL Approved	March 2016	2016
Cattail Lake	Marshall County	Mercury in Fish Tissue	TMDL Approved	March 2016	2016
Cavour Lake	Beadle County	Mercury in Fish Tissue	TMDL Approved	March 2016	2016
Clear Lake	Marshall County	Mercury in Fish Tissue	Not Initiated		2020
Clubhouse Lake	Marshall County	Mercury in Fish Tissue	TMDL Approved	Aug. 2016	2016
Cottonwood Lake	Spink County	Mercury in Fish Tissue	TMDL Approved	March 2016	2016
Cottonwood Lake	Spink County	TSI/pH	TMDL Approved	Nov. 2001	1998
Cresbard Lake	Faulk County	pH	Not Initiated		2010
Cresbard Lake	Faulk County	TSIChlorophyll-a	TMDL Approved	Dec. 2003	1998
Elm Lake	Brown County	Mercury in Fish Tissue	TMDL Approved	Mar. 2016	2014
Elm Lake	Brown County	TSI	TMDL Approved	April 1999	1998
Elm Lake	Brown County	DO	Not Initiated		2022
Lake Faulkton	Faulk County	Mercury in Fish Tissue	TMDL Approved	March 2016	2016
Lake Faulkton	Faulk County	TSI/Sed/Chlorophyll-a	TMDL Approved	April 1999	1998
Lake Faulkton	Faulk County	DO	Not Initiated		2018
Lake Faulkton	Faulk County	pH	Not Initiated		2022
Lake Hanson	Hanson County	Mercury in Fish Tissue	TMDL Approved	March 2016	2016
Lake Hanson	Hanson County	TSI	TMDL Approved	June 2004	1998
Hazeldon Lake	Day County	Mercury in Fish Tissue	TMDL Approved	March 2016	2016
Henry Reservoir	Bon Homme County	Mercury in Fish Tissue	TMDL Approved	March 2016	2016
Henry Reservoir	Bon Homme County	DO	Not Initiated		2020
Horseshoe Lake	Marshall County	Mercury in Fish Tissue	TMDL Approved	March 2016	2016
Jones Lake	Hand County	pH	Not Initiated		2006
Jones Lake	Hand County	TSI	TMDL Approved	April 2003	1998
Lardy Lake	Day County	Mercury in Fish Tissue	TMDL Approved	March 2016	2014
Latham Lake	Faulk County	DO	Not Initiated		2012
Lily Lake	Day County	Mercury in Fish Tissue	TMDL Approved	March 2016	2016
Louise, Lake	Hand County	DO	Not Initiated		2014
Louise, Lake	Hand County	Mercury in Fish Tissue	TMDL Approved	March 2016	2016
Louise, Lake	Hand County	TSI	TMDL Approved	Nov. 2001	1998
Loyalton Lake - breached	Edmunds County	TSI	TMDL Approved	April 2003	1998
Lynn Lake	Day County	Mercury in Fish Tissue	TMDL Approved	March 2016	2016
Middle Lynn Lake	Day County	Mercury in Fish Tissue	TMDL Approved	March 2016	2014
Mina Lake	Edmunds County	DO	Not Initiated		2012
Mina Lake	Edmunds County	Mercury in Fish Tissue	TMDL Approved	March 2016	2016
Mina Lake	Edmunds County	TSI	TMDL Approved	April 2003	1998
Mitchell, Lake	Davison County	Chlorophyll-a/TP	TMDL Approved	April 1997	Pre-1998
Nine Mile Lake	Marshall County	Nutrients/Sed	TMDL Withdrawn	April 2010	1998
Nine Mile Lake	Marshall County	pH	Not Initiated		2010
North Buffalo Lake	Marshall County	Mercury in Fish Tissue	Not Initiated		2020
Opitz Lake	Day County	Mercury in Fish Tissue	TMDL Approved	March 2016	2012
Pierpont Lake	Day County	Temp	Not Initiated		2012
Piyas Lake	Day County	Mercury in Fish Tissue	Not Initiated		2020
Ravine Lake	Beadle County	DO	Not Initiated		2012
Ravine Lake	Beadle County	Chlorophyll-a	Not Initiated		2022
Ravine Lake	Beadle County	pH	Not Initiated		2022
Ravine Lake	Beadle County	Mercury in Fish Tissue	TMDL Approved	March 2016	2016
Ravine Lake	Beadle County	TSI/Fecal	TMDL Approved	April 1999	1998
Redfield, Lake	Spink County	DO	Not Initiated		2014
Redfield, Lake	Spink County	Sed/TSI	TMDL Approved	April 1999	1998
Reetz Lake	Day County	Mercury in Fish Tissue	TMDL Approved	March 2016	2016
Richmond Lake	Brown County	Mercury in Fish Tissue	TMDL Approved	March 2016	2016
Richmond Lake	Brown County	TSI	TMDL Approved	Aug. 2007	1998
Rosehill Lake - breached	Hand County	TSI	TMDL Approved	April 2003	1998
Rosette Lake	Edmunds County	Chlorophyll-a	Not Initiated	March 2015	2014
Stink Lake	Marshall County	Mercury in Fish Tissue	TMDL Approved	Sept. 2022	2020
South Buffalo Lake	Marshall County	DO	Not Initiated		2010
South Buffalo Lake	Marshall County	Mercury in Fish Tissue	TMDL Approved	March 2016	2016
South Red Iron Lake	Marshall County	Temp	Not Initiated		2014
Staum Dam	Beadle County	Mercury in Fish Tissue	TMDL Approved	March 2016	2016
Twin Lakes	Sanborn County	DO	Not Initiated	March 2017	2016
Twin Lakes	Sanborn County	Chlorophyll-a	Not Initiated	March 2017	2010
Wilmarth Lake	Aurora County	Mercury in Fish Tissue	TMDL Approved	March 2016	2016
Wilmarth Lake	Aurora County	pH	Not Initiated		2014
Streams
Dawson Creek	James River to Lake Henry	E. coli	TMDL Approved	June 2011	2010
Dawson Creek	James River to Lake Henry	Fecal	TMDL Approved	June 2011	2010
Elm Creek	Elm Lake to mouth	TDS	Not Initiated		2022
Firesteel Creek	West Fork Firesteel Creek to mouth	E. coli	Not Initiated		2010
Firesteel Creek	West Fork Firesteel Creek to mouth	Nutrients	Special Approvals	April 1997	Pre 1998
Firesteel Creek	West Fork Firesteel Creek to mouth	Temp	Not Initiated		2016
Firesteel Creek	West Fork Firesteel Creek to mouth	TDS	Not Initiated		2016
Firesteel Creek	West Fork Firesteel Creek to mouth	DO	Not Initiated		2022
Firesteel Creek	West Fork Firesteel Creek to mouth	TSS	Not Initiated		2018
Foot Creek	Near Aberdeen	DO	Not Initiated		2012
James River	North Dakota border to Mud Lake Reservoir	DO	Not Initiated		2012
James River	Columbia Road Reservoir	DO	Not Initiated		2012
James River	Columbia Road Reservoir	TSS	Not Initiated		2016
James River	Columbia Road Reservoir to near US HWY 12	DO	Not Initiated		2012
James River	US HWY 12 to Mud Creek	DO	Not Initiated		2012
James River	Mud Creek to James River Diversion Dam	DO	Not Initiated		2010
James River	James River Diversion Dam to Huron 3rd St Dam	DO	Not Initiated		2012
James River	James River Diversion Dam to Huron 3rd St Dam	TDS	Not Initiated		2014
James River	Huron 3rd Street Dam to Sand Creek	Mercury in Fish Tissue	TMDL Approved	March 2016	2016
James River	Sand Creek to I-90	TSS	Not Initiated		2002
James River	Sand Creek to I-90	TSS	Not Initiated		2022
James River	I-90 to Yankton County Line	Mercury in Fish Tissue	Not Initiated		2020
James River	Yankton County line to mouth	Fecal	TMDL Approved	March 2011	2002
James River	Yankton County line to mouth	TSS	TMDL Approved	July 2022	2002
James River	Yankton County line to mouth	Mercury in Fish Tissue	Not Initiated		2020
Maple River	ND border to Elm River	TDS	Not Initiated		2020
Moccasin Creek	James River to S24, T123N, R64W	DO	Not Initiated		2008
Moccasin Creek	James River to S24, T123N, R64W	E. Coli	Not Initiated		2018
Moccasin Creek	James River to S24, T123N, R64W	pH	Not Initiated		2022
Mud Creek	SD Highway 73 to mouth	DO	Not Initiated		2006
Pierre Creek	James River to S11, T102N, R58W	E. coli	TMDL Approved	Dec. 2011	2010
Pierre Creek	James River to S11, T102N, R58W	Fecal	TMDL Approved	Sept. 2009	2008
Pierre Creek	James River to S11, T102N, R58W	TSS	Not Initiated		2022
Snake Creek	Headwaters to mouth	DO	Not Initiated		2006
Wolf Creek	Wolf Creek Colony to S5, T103N, R56W	E. Coli	TMDL Approved	April 2020	2008
Wolf Creek	Wolf Creek Colony to S5, T103N, R56W	Cond	Not Initiated		2022
Wolf Creek	Just above Wolf Creek Colony to mouth	E. Coli	TMDL Approved	April 2020	2008
Wolf Creek	Just above Wolf Creek Colony to mouth	TSS	TMDL Approved	Aug. 2011	2008
Little Missouri River
Segment or Lake Name	Segment or Lake Location	Impairment	Status	Status Date	Initial Listing
Streams
Little Missouri River	Montana border to North Dakota border	Mercury in Fish Tissue	TMDL Approved	March 2016	2016
Little Missouri River	Montana border to North Dakota border	TSS	Not Initiated		2010
Minnesota River
Segment or Lake Name	Segment or Lake Location	Impairment	Status	Status Date	Initial Listing
Lakes
Alice, Lake	Deuel County	Mercury in Fish Tissue	TMDL Approved	March 2016	2016
Alice, Lake	Deuel County	TSI	TMDL Approved	June 2004	1998
Big Stone Lake	Roberts County	Nutrients	TMDL Approved	Dec. 1998	Pre 1998
Fish Lake	Deuel County	TSI	TMDL Approved	Sept. 2004	1998
Fish Lake	Deuel County	E. Coli	Not Initiated		2022
Fish Lake	Deuel County	pH	Not Initiated		2022
Hendricks, Lake	Brookings County	pH	Not Initiated		2010
Hendricks, Lake	Brookings County	TSI/Sed	TMDL Approved	April 1999	1998
Oak Lake	Brookings County	Chlorophyll-a	Not Initiated		2022
Oak Lake	Brookings County	E. Coli	Not Initiated		2022
Oliver, Lake	Deuel County	TSI	TMDL Approved	Nov. 2001	1998
Punished Woman Lake	Codington County	pH	Not Initiated		2012
Punished Woman Lake	Codington County	TSI/Sed	TMDL Approved	Feb. 2001	1998
Summit Lake	Grant County	Mercury in Fish Tissue	TMDL Approved	March 2016	2016
Streams
La Qui Parle River, West Branch	SD/MN border to S8, T115N, R47W	E. coli	Not Initiated		2016
Little Minnesota River	S24, T126N, R51W to S15, T128N, R52W	DO	Not Initiated		2012
Mud Creek	S. Fork Yellowbank to S22,T118N,R48W	DO	Not Initiated		2012
Mud Creek	S. Fork Yellowbank to S22,T118N,R48W	E. Coli	Not Initiated		2020
Whetstone River, S. Fork	Headwaters to Lake Farley	E. coli	TMDL Approved	June 2022	2012
Whetstone River, S. Fork	Lake Farley to mouth	E. coli	TMDL Approved	June 2022	2012
Yellowbank River, S. Fork	SD/MN border to S33, T118N, R49W	E. coli	TMDL Approved	May 2018	2012
Yellowbank River, N. Fork	SD/MN border to S33, T118N, R49W	E. coli	TMDL Approved	May 2018	2012
Missouri River
Segment or Lake Name	Segment or Lake Location	Impairment	Status	Status Date	Initial Listing
Lakes
Lake Andes	Charles Mix County	DO	TMDL Withdrawn	March 2010	2008
Lake Andes	Charles Mix County	pH	Not Initiated		2018
Brakke Dam	Lyman County	Mercury in Fish Tissue	TMDL Approved	March 2016	2016
Brakke Dam	Lyman County	TSI/Chlorophyll-a	TMDL Approved	Sept. 2004	1998
Brakke Dam	Lyman County	DO	Not Initiated		2022
Burke Lake	Gregory County	DO/pH/TSI/Chlorophyll-a	TMDL Approved	Aug. 2007	2006
Lake Byre	Lyman County	Temp	Not Initiated		2022
Lake Byre	Lyman County	TSI/Chlorophyll-a	TMDL Approved	June 2004	Not Listed
Lake Campbell	Campbell County	pH	Not Initiated	Aug. 2006	2010
Lake Campbell	Campbell County	DO	Not Initiated		2020
Lake Campbell	Campbell County	Chlorophyll-a	Not Initiated	Aug. 2006	2010
Corsica Lake	Douglas County	pH	Not Initiated		2008
Corsica Lake	Douglas County	TSI/Chlorophyll-a	TMDL Approved	Aug. 2006	1998
Cottonwood Lake	Sully County	Chlorophyll-a	Not Initiated		2010
Cottonwood Lake	Sully County	Mercury in Fish Tissue	TMDL Approved	March 2016	2016
Dante Lake	Charles Mix County	Temp	Not Initiated		2014
Dante Lake	Charles Mix County	TSI/DO	TMDL Approved	Sept. 2006	1998
Fate Dam	Lyman County	Mercury in Fish Tissue	TMDL Approved	March 2016	2016
Fate Dam	Lyman County	TSI	TMDL Approved	Jan. 2005	1998
Geddes Lake	Charles Mix County	TSI/Chlorophyll-a/DO	TMDL Approved	May 2008	1998
Lake Hiddenwood - breached	Walworth County	DO	Not Initiated		2012
Lake Hiddenwood - breached	Walworth County	TSI/Sed/Chlorophyll-a	TMDL Approved	April 1999	1998
Hurley Lake	Potter County	Mercury in Fish Tissue	TMDL Approved	March 2016	2004
Hurley Lake	Potter County	Mercury in Fish Tissue	TMDL Approved	March 2016	2004
Kiesz Lake	McPherson County	Mercury in Fish Tissue	Not Initiated		2022
McCook Lake	Union County	Sed	TMDL Approved	April 1999	1998
McCook Lake	Union County	Temp	Not Initiated		2010
Lake Pocasse	Campbell County	Chlorophyll-a	Not Initiated		2010
Pott's Lake	Potter County	Mercury in Fish Tissue	TMDL Approved	Sept. 2022	2020
Roosevelt Lake	Tripp County	Mercury in Fish Tissue	TMDL Approved	March 2016	1998
Roosevelt Lake	Tripp County	DO	Not Initiated		2018
Sully Lake	Sully County	Chlorophyll-a	Not Initiated		2020
Lake Yankton	Yankton County	Temp	Not Initiated		2022
Streams
Choteau Creek	Wagner to mouth	TSS	TMDL Approved	May 2010	2004
Crow Creek	Bedashosha Lake to Jerauld County line	E. coli	Not Initiated		2016
Crow Creek	Bedashosha Lake to Jerauld County line	TSS	Not Initiated		2016
Emanuel Creek	Lewis and Clark Lake to S20, T94N, R60W	E. coli	TMDL Approved	Aug. 2011	2010
Emanuel Creek	Lewis and Clark Lake to S20, T94N, R60W	Fecal	TMDL Approved	Sept. 2009	2008
Emanuel Creek	Lewis and Clark Lake to S20, T94N, R60W	TSS	TMDL Approved	Sept. 2009	2008
Medicine Creek	US Hwy 83 to mouth	E. coli	Not Initiated		2016
Medicine Creek	US Hwy 83 to mouth	Fecal/TSS	TMDL Approved	Aug. 2006	2006
Medicine Creek	US Hwy 83 to mouth	Cond	Not Initiated		2004
Medicine Creek	US Hwy 83 to mouth	TDS	Not Initiated		2018
Missouri River (Lewis & Clark Lake)	Fort Randall Dam to North Sioux City	Mercury in Fish Tissue	Not Initiated		2016
Missouri River (Lake Oahe)	ND border to Oahe Dam	Mercury in Fish Tissue	TMDL Approved	March 2016	2016
Missouri River (Lake Sharpe)	Oahe Dam to Big Bend Dam	DO	Not Initiated
Missouri River (Lake Sharpe)	Oahe Dam to Big Bend Dam	Sed	TMDL Approved	Feb 2001	1998
Missouri River (Lake Sharpe)	Oahe Dam to Big Bend Dam	Temp	Not Initiated		2010
Platte Creek	Near Platte, SD	E. Coli	Not Initiated		2020
Ponca Creek	Gregory to near St. Charles	E. coli	Not Initiated		2016
Ponca Creek	Gregory to near St. Charles	Fecal	TMDL Approved	August 2010	2008
Ponca Creek	Gregory to near St. Charles	TSS	TMDL Approved	April 2010	2008
Spring Creek	US Hwy 83 to mouth	DO	Not Initiated		2006
Moreau River
Segment or Lake Name	Segment or Lake Location	Impairment	Status	Status Date	Initial Listing
Lakes
Coal Springs Reservoir	Perkins County	Mercury in Fish Tissue	TMDL Approved	Mar. 2016	2012
Coal Springs Reservoir	Perkins County	pH	Not Initiated		2012
Little Moreau Lake #1	Dewey County	Mercury in Fish Tissue	TMDL Approved	March 2016	2016
Little Moreau Lake #1	Dewey County	pH	Not Initiated		2020
Streams
Moreau River	North and South Forks to Ziebach/Perkins county line	Salinity/SAR	Not Initiated		2004
Moreau River	North and South Forks to Ziebach/Perkins county line	TSS	Not Initiated		2006
Moreau River	Ziebach/Perkins county line to Green Grass	Salinity/SAR	Not Initiated		2006
Moreau River	Green Grass to mouth	TSS	Not Initiated		1998
Moreau River, S. Fork	Alkali Creek to mouth	Cond	Not Initiated
Moreau River, S. Fork	Alkali Creek to mouth	Salinity/SAR	Not Initiated		2014
Moreau River, S. Fork	Alkali Creek to mouth	TDS	Not Initiated		2004
Rabbit Creek	Antelope Creek to Moreau River	E. Coli	Not Initiated		2020
Rabbit Creek	Antelope Creek to Moreau River	TSS	Not Initiated		2020
Niobrara River
Lakes
Rahn Lake	Tripp County	Chlorophyll-a	Not Initiated		2010
Rahn Lake	Tripp County	DO	Not Initiated		2020
Streams
Keya Paha River	Keya Paha to Nebraska border	E. coli	TMDL Approved	Sept. 2011	2010
Keya Paha River	Keya Paha to Nebraska border	Fecal	TMDL Approved	Feb. 2010	2008
Keya Paha River	Keya Paha to Nebraska border	TSS	TMDL Approved	Sept. 2009	1998
Red River
Lakes
White Lake	Marshall County	DO/TSI/Chlorophyll-a	TMDL Approved	Aug. 2006	1998
Vermillion River
Segment or Lake Name	Segment or Lake Location	Impairment	Status	Status Date	Initial Listing
Lakes
East Vermillion Lake	McCook County	Chlorophyll-a	Not Initiated		2010
East Vermillion Lake	McCook County	Mercury in Fish Tissue	TMDL Approved	March 2016	2016
Lake Henry	Kingsbury County	Mercury in Fish Tissue	TMDL Approved	March 2016	2016
Lake Henry	Kingsbury County	pH	Not Initiated		2018
Lake Marindahl	Yankton County	DO	Not Initiated		2022
Lake Marindahl	Yankton County	Temp	Not Initiated		2022
Silver Lake	Hutchinson County	pH	Not Initiated		2010
Spirit Lake	Kingsbury County	Mercury in Fish Tissue	Not Initiated		2022
Swan Lake	Turner County	TSI/Sed	TMDL Approved	April 1999	1998
Lake Thompson	Kingsbury County	Chlorophyll-a	Not Initiated	March 2017	2014
Lake Thompson	Kingsbury County	Mercury in Fish Tissue	TMDL Approved	March 2016	2016
Whitewood Lake	Kingsbury County	Mercury in Fish Tissue	TMDL Approved	March 2016	2016
Streams
Long Creek	Vermillion River to Highway 44	E. coli	TMDL Approved	June 2021	2010
Long Creek	Vermillion River to Highway 44	Fecal	TMDL Approved	June 2021	1998
Long Creek	Vermillion River to Highway 44	TSS	Not Initiated		2020
Turkey Ridge Creek	Vermillion River to S31, T98N, R53W	Fecal	TMDL Approved	Sept. 2006	Not listed
Vermillion River	Headwaters to Turkey Ridge Creek	E. Coli	Not Initiated		2020
Vermillion River	Headwaters to Turkey Ridge Creek	TSS	Not Initiated		2020
Vermillion River	Turkey Ridge Creek to Baptist Creek	E. Coli	TMDL Approved	Sept. 2010	2002
Vermillion River	Turkey Ridge Creek to Baptist Creek	TSS	TMDL Approved	Sept. 2010	2002
Vermillion River	Baptist Creek to mouth	E. coli	TMDL Approved	July 2022	2014
Vermillion River	Baptist Creek to mouth	TSS	TMDL Approved	July 2011	1998
Vermillion River, E Fork	McCook/Lake County line to Little Vermillion River	E. coli	TMDL Approved	Nov 2020	2010
Vermillion River, E Fork	McCook/Lake County line to Little Vermillion River	Fecal	TMDL Approved	Sept. 2012	2010
Vermillion River, W Fork	Vermillion River to McCook/Miner County line	E. coli	TMDL Approved	Aug 2019	2010
White River
Segment or Lake Name	Segment or Lake Location	Impairment	Status	Status Date	Initial Listing
Lakes
Allan Dam	Bennett County	pH	Not Initiated		2014
Streams
Cottonwood Creek	Headwaters to White River	Cond	Not Initiated		2004
Little White River	Rosebud Creek to mouth	E. coli	Not Initiated		2012
White River	Wilow Creek to Pass Creek	E. coli	Not Initiated		2010
White River	Wilow Creek to Pass Creek	Salinity/SAR	Not Initiated		2010
White River	Pass Creek to Little White River	E. coli	Not Initiated		2012
White River	Pass Creek to Little White River	TSS	Not Initiated		2004
White River	Little White River to confluence with Missouri River	E. coli	Not Initiated		2010

Impairments
Alkalinity	Alkalinity is a measure of the buffering capacity of water, or the capacity of water to resist change in pH.
Cd	Cadmium, a metal that in high enough quantities can cause stress and/or be fatal to aquatic life.
Chlorides	Chloride can be toxic to aquatic organisms and can affect the taste of food products.
Chlorophyll-a	Chlorophyll-a is a major pigment in algae that may be used to estimate the biomass of algae found in water.
Cond	Conductivity, a measure of the waters ability to conduct a current. It is used as a measure if the dissolved ionic matter in the water.
Cu	Copper, a metal that in high enough quantities can cause stress and/or be fatal to aquatic life.
DO	Dissolved Oxygen, Results from the photosynthetic and respiratory activities of the biota in the waterbody. DO is essential for aquatic life.
E. Coli	Escherichia coli (E. coli), is an indicator of waste from warm-blooded animals. Fecal coliform may also indicate the potential for pathogens in the water supply.
Fecal	Fecal Coliform, is an indicator of waste from warm-blooded animals. Fecal coliform may also indicate the potential for pathogens in the water supply.
Fish Kill	A waterbody that has had a reported fish kill.
Mercury in Fish Tissue	Mercury is a neurotoxin that can bioaccumulate in the tissue of fish and pose a risk when consumed by humans.
Nitrate	Inorganic form of oxidized nitrogen resulting from bacterial oxidation of ammonia.
Nutrients	Nutrients are ultimately responsible for the eutrophication or productivity of a waterbody. Typical nutrients measured are total nitrogen and total phosphorus.
pH	Acidity/Alkalinity the measure of the hydrogen ion concentration. pH can effect many chemical reactions in water.
Salinity/SAR	Salinity/Sodium Absorption Ratio, high concentration of sodium can render in the soil hard and resistant to water penetration and also limit the uptake of water by plant roots.
Sediment	Sediment refers to excessive sediment that caused the reduction of depth in a lake or reservoir.
Selenium	Selenium is an essential trace element for animal nutrition. It can also be toxic to plants, animals and humans at higher concentrations.
Sulfates	Sulfur is an important plant nutrient. Sulfates can cause gastrointestinal problems to humans at high enough concentrations.
TDS	Total Dissolved Solids, material that can pass through a filter and is typically Total Dissolved Solids, Is a measure of salts in water, and can be composed of earth compounds, particularly bicarbonates, carbonates, sulfates and chloride.
Temp	Temperature, Water temperature is important for aquatic life and chemical processes in water.
Total Ammonia	Total ammonia, in high concentrations, is toxic to aquatic organisms, including invertebrates and fish.
TP	Total phosphorus (see nutrients)
TSI	Carlson's (1977) Trophic State Indices, Carlson's TSI is a measure of productivity in a lake or reservoir. Typically Secchi depth, chlorophyll a, and phosphorus measurements are used to calculate a mean TSI value.
TSS	Total Suspended Solids, the organic and inorganic material left on a standard glass fiber filter (0.45 micron) after a water sample is filtered through it. TSS can be used to measure the volume of solids in a waterbody. Too much suspended solids can be harmful to the biota in a stream.
Unknown	The cause of the impairment to the biological component of the narrative standard is not known and further study is needed.
Zinc	Zinc, in high enough concentrations, can be toxic to aquatic organisms.

TMDL Project Status
Not Initiated	TMDL development has not been initiated.
Special Approvals	A waterbody that had sufficient data to write a TMDL before the first 303(d) list was published.
TMDL in Public Notice	During the public notice phase, a TMDL has been developed and is ready for public review and comment. Comments can be sent to DANRMail@state.sd.us. Comments received are reviewed and considered before submitting a final TMDL to EPA for approval.
TMDL Approved	EPA has approved a TMDL as submitted by the state.
TMDL Withdrawn	The formal withdrawal of a TMDL because of, but not limited to, new water quality data, revisions in water quality standards, or changes in assessment or Integrated Report listing methodologies.

Nonpoint Source PollutionTotal Maximum Daily Loads

National 303(d) Program Vision

Watershed Protection Resources

Nonpoint Source Pollution
Total Maximum Daily Loads