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Section 303(d) List Fact Sheet for Watershed
Big Thompson

Other Impaired Water 303(d) List Information
Data are also available for these years:


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Number of Waters listed by State for Watershed

State Name Waters on List Effective Listing Cycle
COLORADO color.gif 2 2008
Total Number of Waters Listed: 2

Waters Listed By Waterbody

NOTE: Click on the underlined "Waters on List" value to see a listing of those waters.
Waterbody Name Waterbody Type Waters on List
BIG THOMPSON RIVER I-25 TO S. PLATTE RIVER CONFLUENCE RIVER color.gif 1
BIG THOMPSON RIVER I-25 TO S. PLATTE RIVER CONFLUENCE STREAM/CREEK/RIVER color.gif 1
LITTLE THOMPSON -CULVER DITCH TO BIG THOMPSON RIVER RIVER color.gif 1
LITTLE THOMPSON -CULVER DITCH TO BIG THOMPSON RIVER STREAM/CREEK/RIVER color.gif 1
Total Number of Listed Waters: 4

Causes of Impairment

NOTE: Click on the underlined "Causes of Impairment Reported" value to see a listing of those waters with the impairment.
Impairment Name Causes of Impairment Reported Percent of Reported
SELENIUM color.gif 2 33.33
AMMONIA (UN-IONIZED) color.gif 1 16.67
COPPER color.gif 1 16.67
CAUSE UNKNOWN color.gif 1 16.67
E. COLI color.gif 1 16.67
Total Number of Causes of Impairment Reported: 6

Approved TMDLs by Pollutants since October 1, 1995



There were no Approved TMDLs reported to EPA by the state for this watershed. EPA is in the process of collecting TMDL information from the states. Because these efforts are on-going, there may be additional approved TMDLs that were not found here.

Approved TMDLS by EPA Fiscal Year (October 1 through September 30) since October 1, 1995


There were no Approved TMDLs reported to EPA by the state since October 1995.


TMDL Document Search

Full Text Search of TMDL Documents is available here.

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