Watershed Quality Assessment Report | WATERS

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Assessment Summary
Causes of Impairment
Probable Sources Contributing to Impairment
TMDL Alternatives by Cause of Impairment
Cumulative TMDLs by Pollutant

Montana State Report
Other states that contain this watershed:
Wyoming, Madison Watershed

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Montana, Madison Watershed

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Assessment Summary for Reporting Year 2010
Montana, Madison Watershed

Description of this table
Click here to list Threatened and Impaired Waters Only

Waterbody Name	Waterbody ID	Location	Map	Waterbody Type	Size	Units	Status	State TMDL Development Status
NOTE: Click on the underlined "Waterbody Name" to view a Waterbody report.
Antelope Creek	MT41F004_140	Antelope Creek, Headwaters To Mouth (Cliff Lake)	Waterbody Map	River	9.5	Miles	Impaired	TMDL needed
Beaver Creek	MT41F004_030	Beaver Creek, Headwaters To Mouth (Quake Lake)	Waterbody Map	River	10.9	Miles	Good
Blaine Spring Creek	MT41F004_010	Blaine Spring Creek, Headwaters To Mouth (Madison River)	Waterbody Map	River	8.9	Miles	Impaired	TMDL needed
Buford Creek	MT41F004_150	Buford Creek, Headwaters To Confluence With West Fork Madison River	Waterbody Map	River	4.4	Miles	Impaired	TMDL needed
Cherry Creek	MT41F002_010	Cherry Creek, Headwaters To Mouth (Madison River)	Waterbody Map	River	24.0	Miles	Good
Elk Creek	MT41F002_020	Elk Creek, Headwaters To Mouth (Madison River)	Waterbody Map	River	18.3	Miles	Impaired	TMDL needed
Elk River	MT41F004_110	Elk River, Headwaters To Mouth (West Fork Madison River)	Waterbody Map	River	15.6	Miles	Impaired	TMDL needed
Ennis Lake	MT41F005_030	Ennis Lake, To The Ennis Lake Dam, T4s R1e S20	Waterbody Map	Freshwater Lake	3,780.8	Acres	Impaired	TMDL needed
Gazelle Creek	MT41F004_120	Gazelle Creek, Headwaters To Mouth (West Fork Madison River)	Waterbody Map	River	9.7	Miles	Impaired	Non-pollutant impairment
Hebgen Lake	MT41F005_010	Hebgen Lake	Waterbody Map	Freshwater Lake	12,667.9	Acres	Not_Assessed
Hot Springs Creek	MT41F002_030	Hot Springs Creek, Headwaters To Mouth (Madison River)	Waterbody Map	River	17.4	Miles	Impaired	TMDL needed
Indian Creek	MT41F004_040	Indian Creek, Lee Metcalf Wilderness Boundary To Mouth (Madison River)	Waterbody Map	River	6.3	Miles	Impaired	Non-pollutant impairment
Jack Creek	MT41F004_050	Jack Creek, Headwaters To Mouth (Madison River)	Waterbody Map	River	15.2	Miles	Impaired	TMDL needed
Madison River	MT41F001_010	Madison River, Ennis Dam To Mouth (Missouri River)	Waterbody Map	River	41.3	Miles	Impaired	TMDL needed
Madison River	MT41F001_020	Madison River, Quake Lake To Ennis Lake	Waterbody Map	River	56.0	Miles	Good
Madison River	MT41F001_030	Madison River, Hebgen Dam To Quake Lake	Waterbody Map	River	2.3	Miles	Good
Moore Creek	MT41F004_130	Moore Creek, Springs To Mouth (Fletcher Channel), T5s R1w S15	Waterbody Map	River	15.8	Miles	Impaired	TMDL needed
North Meadow Creek	MT41F004_060	North Meadow Creek, Headwaters To Mouth (Enis Lake)	Waterbody Map	River	18.5	Miles	Impaired	TMDL needed
O'Dell Spring Creek	MT41F004_020	O'Dell Spring Creek, Headwaters To Mouth (Madison River)	Waterbody Map	River	13.0	Miles	Impaired	TMDL needed
Quake Lake	MT41F005_020	Quake Lake	Waterbody Map	Freshwater Lake	600.0	Acres	Not_Assessed
Red Canyon Creek	MT41F006_020	Red Canyon Creek, Headwaters To Mouth (Hebgen Lake)	Waterbody Map	River	6.3	Miles	Impaired	TMDL needed
Ruby Creek	MT41F004_080	Ruby Creek, Headwaters To Mouth (Madison River)	Waterbody Map	River	15.9	Miles	Impaired	Non-pollutant impairment
South Fork Madison River	MT41F006_010	South Fork Madison River, Headwaters To Hebgen Lake	Waterbody Map	River	23.3	Miles	Impaired	TMDL needed
South Meadow Creek	MT41F004_070	South Meadow Creek, Headwaters To Mouth (Enis Lake)	Waterbody Map	River	13.0	Miles	Impaired	TMDL needed
Standard Creek	MT41F004_090	Standard Creek, Headwaters To Mouth (Madison River)	Waterbody Map	River	13.4	Miles	Good
Watkins Creek	MT41F006_030	Watkins Creek, Headwaters To Mouth (Hebgen Lake)	Waterbody Map	River	7.1	Miles	Impaired	Non-pollutant impairment
West Fork Madison River	MT41F004_100	West Fork Madison River, Headwaters To Mouth (Madison River)	Waterbody Map	River	39.4	Miles	Impaired	TMDL needed

Description of this table
Click here to list All Assessed Waters

Waterbody Name	Waterbody ID	Location	Map	Waterbody Type	Size	Units	Status	State TMDL Development Status
NOTE: Click on the underlined "Waterbody Name" to view a Waterbody report.
Antelope Creek	MT41F004_140	Antelope Creek, Headwaters To Mouth (Cliff Lake)	Waterbody Map	River	9.5	Miles	Impaired	TMDL needed
Blaine Spring Creek	MT41F004_010	Blaine Spring Creek, Headwaters To Mouth (Madison River)	Waterbody Map	River	8.9	Miles	Impaired	TMDL needed
Buford Creek	MT41F004_150	Buford Creek, Headwaters To Confluence With West Fork Madison River	Waterbody Map	River	4.4	Miles	Impaired	TMDL needed
Elk Creek	MT41F002_020	Elk Creek, Headwaters To Mouth (Madison River)	Waterbody Map	River	18.3	Miles	Impaired	TMDL needed
Elk River	MT41F004_110	Elk River, Headwaters To Mouth (West Fork Madison River)	Waterbody Map	River	15.6	Miles	Impaired	TMDL needed
Ennis Lake	MT41F005_030	Ennis Lake, To The Ennis Lake Dam, T4s R1e S20	Waterbody Map	Freshwater Lake	3,780.8	Acres	Impaired	TMDL needed
Gazelle Creek	MT41F004_120	Gazelle Creek, Headwaters To Mouth (West Fork Madison River)	Waterbody Map	River	9.7	Miles	Impaired	Non-pollutant impairment
Hot Springs Creek	MT41F002_030	Hot Springs Creek, Headwaters To Mouth (Madison River)	Waterbody Map	River	17.4	Miles	Impaired	TMDL needed
Indian Creek	MT41F004_040	Indian Creek, Lee Metcalf Wilderness Boundary To Mouth (Madison River)	Waterbody Map	River	6.3	Miles	Impaired	Non-pollutant impairment
Jack Creek	MT41F004_050	Jack Creek, Headwaters To Mouth (Madison River)	Waterbody Map	River	15.2	Miles	Impaired	TMDL needed
Madison River	MT41F001_010	Madison River, Ennis Dam To Mouth (Missouri River)	Waterbody Map	River	41.3	Miles	Impaired	TMDL needed
Moore Creek	MT41F004_130	Moore Creek, Springs To Mouth (Fletcher Channel), T5s R1w S15	Waterbody Map	River	15.8	Miles	Impaired	TMDL needed
North Meadow Creek	MT41F004_060	North Meadow Creek, Headwaters To Mouth (Enis Lake)	Waterbody Map	River	18.5	Miles	Impaired	TMDL needed
O'Dell Spring Creek	MT41F004_020	O'Dell Spring Creek, Headwaters To Mouth (Madison River)	Waterbody Map	River	13.0	Miles	Impaired	TMDL needed
Red Canyon Creek	MT41F006_020	Red Canyon Creek, Headwaters To Mouth (Hebgen Lake)	Waterbody Map	River	6.3	Miles	Impaired	TMDL needed
Ruby Creek	MT41F004_080	Ruby Creek, Headwaters To Mouth (Madison River)	Waterbody Map	River	15.9	Miles	Impaired	Non-pollutant impairment
South Fork Madison River	MT41F006_010	South Fork Madison River, Headwaters To Hebgen Lake	Waterbody Map	River	23.3	Miles	Impaired	TMDL needed
South Meadow Creek	MT41F004_070	South Meadow Creek, Headwaters To Mouth (Enis Lake)	Waterbody Map	River	13.0	Miles	Impaired	TMDL needed
Watkins Creek	MT41F006_030	Watkins Creek, Headwaters To Mouth (Hebgen Lake)	Waterbody Map	River	7.1	Miles	Impaired	Non-pollutant impairment
West Fork Madison River	MT41F004_100	West Fork Madison River, Headwaters To Mouth (Madison River)	Waterbody Map	River	39.4	Miles	Impaired	TMDL needed

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Causes of Impairment for Reporting Year 2010

Montana, Madison

Description of this table

Cause of Impairment	Size of Assessed Waters with Listed Causes of Impairment
NOTE: Click on the underlined "Cause of Impairment" value to see a listing of those waters with that cause of impairment.
Cause of Impairment	Rivers and Streams (Miles)	Lakes, Reservoirs, and Ponds (Acres)
Low Flow Alterations	144.5	3,780.8
Physical Substrate Habitat Alterations	130.8	3,780.8
Cadmium	39.4
Chromium, Total		3,780.8
Chlorophyll-A	13.0
Turbidity	18.3
Arsenic	113.4
Cause Unknown		3,780.8
Excess Algal Growth	8.9
Fecal Coliform	15.8
Lead	93.7
Phosphorus, Total	45.7
Copper	41.3
Nitrates	18.3
High Flow Regime	13.0
Aquatic Plants - Native	13.0
Bottom Deposits	15.6
Other Anthropogenic Substrate Alterations	77.9	3,780.8
Temperature, Water	99.1
Alteration in Stream-Side or Littoral Vegetative Covers	159.7
Sedimentation/Siltation	122.3
Total Kjehldahl Nitrogen (TKN)	8.9

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Probable Sources Contributing to Impairments for Reporting Year 2010

Montana, Madison Watershed

Description of this table

Probable Source	Size of Assessed Waters with Probable Sources of Impairments
Probable Source	Rivers and Streams (Miles)	Lakes, Reservoirs, and Ponds (Acres)
Acid Mine Drainage	33.3	3,780.8
Agriculture	157.5
Animal Feeding Operations (Nps)	18.3
Aquaculture (Permitted)	8.9
Channelization	41.0
Dam Construction (Other Than Upstream Flood Control Projects)	41.3
Dam Or Impoundment	41.3
Flow Alterations From Water Diversions	66.3
Forest Roads (Road Construction And Use)	39.4
Grazing In Riparian Or Shoreline Zones	114.8
Habitat Modification - Other Than Hydromodification	31.4	3,780.8
Impacts From Abandoned Mine Lands (Inactive)	87.6	3,780.8
Impacts From Hydrostructure Flow Regulation/Modification	133.4	3,780.8
Irrigated Crop Production	157.2
Loss Of Riparian Habitat	34.9
Natural Sources	182.5	3,780.8
Non-Irrigated Crop Production	18.3
Rangeland Grazing	39.4
Silviculture Activities	6.3
Silviculture Harvesting	9.7
Source Unknown	52.4	3,780.8
Streambank Modifications/Destabilization	107.4
Unspecified Unpaved Road Or Trail	64.5