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TMDL Document for MODESTY CREEK (HEADWATERS TO THE MOUTH CLARK FORK RIVER) - UPPER CLARK FORK TRIBS SEDIMENT METALS TEMPERATURE

TMDL ID: 38272 TMDL Name: MODESTY CREEK (HEADWATERS TO THE MOUTH CLARK FORK RIVER) - UPPER CLARK FORK TRIBS SEDIMENT METALS TEMPERATURE
State/Tribe: Montana TMDL Date: 03/04/2010
EPA Action: EPA Approved

TMDL Documents

Click on the underlined Document Type to retrieve the actual document in PDF format.
Document Type Comments
TMDL Report  


TMDL Pollutant: Arsenic

Total Waste Load Allocation:      Total Load Allocation: .199
Explicit Margin Of Safety:      Implicit Margin Of Safety: Y
Units for Total Waste Load Allocation and Total Load Allocation: TONS/YEAR      TMDL Pollutant Source Type: Nonpoint Source
TMDL End Point: HUMAN HEALTH STANDARD (UG/L) 10


Listed Water Causes of Impairment for Arsenic
Click on the underlined Waterbody ID for a Waterbody Report. Click on the underlined "Waterbody Map" literal for a map of the Assessment Unit.
Waterbody ID Waterbody Name Map Cycles Listed Cause(s) of Impairment Addressed
MT76G002_080 Modesty Creek Data Unavailable 2000, 2002, 2004, 2006, 2008 Arsenic

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TMDL Pollutant: Cadmium

Total Waste Load Allocation:      Total Load Allocation: .014
Explicit Margin Of Safety:      Implicit Margin Of Safety: Y
Units for Total Waste Load Allocation and Total Load Allocation: TONS/YEAR      TMDL Pollutant Source Type: Nonpoint Source
TMDL End Point: CHRONIC AQUATIC LIFE (UG/L) AT HARDNESS = 319 MG/L CACO3 0.72


Listed Water Causes of Impairment for Cadmium
Click on the underlined Waterbody ID for a Waterbody Report. Click on the underlined "Waterbody Map" literal for a map of the Assessment Unit.
Waterbody ID Waterbody Name Map Cycles Listed Cause(s) of Impairment Addressed
MT76G002_080 MODESTY CREEK Data Unavailable Unlisted but Impaired

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TMDL Pollutant: Copper

Total Waste Load Allocation:      Total Load Allocation: .579
Explicit Margin Of Safety:      Implicit Margin Of Safety: Y
Units for Total Waste Load Allocation and Total Load Allocation: TONS/YEAR      TMDL Pollutant Source Type: Nonpoint Source
TMDL End Point: CHRONIC AQUATIC LIFE (UG/L) AT HARDNESS = 319 MG/L CACO3 29.06


Listed Water Causes of Impairment for Copper
Click on the underlined Waterbody ID for a Waterbody Report. Click on the underlined "Waterbody Map" literal for a map of the Assessment Unit.
Waterbody ID Waterbody Name Map Cycles Listed Cause(s) of Impairment Addressed
MT76G002_080 MODESTY CREEK Data Unavailable Unlisted but Impaired

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TMDL Pollutant: Lead

Total Waste Load Allocation:      Total Load Allocation: .345
Explicit Margin Of Safety:      Implicit Margin Of Safety: Y
Units for Total Waste Load Allocation and Total Load Allocation: TONS/YEAR      TMDL Pollutant Source Type: Nonpoint Source
TMDL End Point: CHRONIC AQUATIC LIFE (UG/L) AT HARDNESS = 319 MG/L CACO3 17.29


Listed Water Causes of Impairment for Lead
Click on the underlined Waterbody ID for a Waterbody Report. Click on the underlined "Waterbody Map" literal for a map of the Assessment Unit.
Waterbody ID Waterbody Name Map Cycles Listed Cause(s) of Impairment Addressed
MT76G002_080 MODESTY CREEK Data Unavailable Unlisted but Impaired

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