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Colorado State Report

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Water Quality Data Available for this Watershed

Colorado, Middle South Platte-Cherry Creek Watershed


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Features

Assessment Summary for Reporting Year 2010
Colorado, Middle South Platte-Cherry Creek Watershed

Description of this table
Click here to list Threatened and Impaired Waters Only
NOTE: Click on the underlined "Waterbody Name" to view a Waterbody report.
Waterbody Name Waterbody ID Location Map Waterbody Type Size Units Status State TMDL Development Status
Barr Lake COSPMS04_0600 Barr Lake Waterbody Map Freshwater Lake 1,725.6 Acres Impaired TMDL needed
Box Elder Creek COSPMS05c_0600 Mainstems Of Box Elder Creek From Its Source To The Confluence With The South Platte River. Data Unavailable Stream 61.3 Miles Not_Assessed  
Cherry Creek COSPCH01_0600 Huc: 10190003 Waterbody Map River 33.7 Miles Good  
Cherry Creek Below The Dam COSPCH03_0600 Huc: 10190003 Waterbody Map River 11.9 Miles Impaired TMDL needed
Cherry Creek Reservoir COSPCH02_0600 Huc: 10190003 Waterbody Map Freshwater Lake 858.3 Acres Good  
Cherry Creek Tributaries COSPCH04_0600 Huc: 10190003 Waterbody Map River 316.0 Miles Not_Assessed  
Crow Creek COSPMS05c_1200 Mainstemcrow Creek From Its Sources To The Confluence With The South Platte River. Data Unavailable Stream 78.1 Miles Not_Assessed  
Dig Bry Creek And Tributaires From Source To S. Platte River COSPBD01_0600 Mainstem Of Big Dry Creek, Including All Tributaries, Lakes, Reservoirs And Wetlands, From The Source To The Confluence With The South Platte River, Except For Specific Listing In Segment 2, 3, 4a, 4b, 5 And 6. Waterbody Map River 48.2 Miles Impaired TMDL needed
East And West Toll Gate Creek COSPUS16c_0601 East And West Toll Gate Creek Waterbody Map River 23.7 Miles Impaired TMDL needed
Ferril Lake COSPUS17A_0501 Washington Park Lakes, City Park Lake, Rocky Mountain Lake, Berkely Lake. Waterbody Map Freshwater Lake 21.7 Acres Good  
Goldsmith Gulch, Cottonwood Creek COSPCH04_0601 Huc: 10190003 Waterbody Map River 9.1 Miles Impaired TMDL needed
Great Western Reservoir COSPBD03_0600 Huc: 10190003 Waterbody Map Freshwater Lake 140.0 Acres Good  
Horse Creek Reservoir COSPMS07_0601 Part Of Tributaries To S. Platte River, Big Dry Creek To Weld/Morgan County Line Waterbody Map Freshwater Reservoir 702.9 Acres Impaired TMDL needed
Jackson Reservoir COSPLS03_0601 Huc: 10190003 Waterbody Map Freshwater Lake 2,412.9 Acres Good  
Ladora Lake COSPUS23_0606 Huc: 10190003 Waterbody Map Freshwater Lake 49.5 Acres Good  
Mainstem Of Boxelder Creek COSPMS05b_0600 Mainstem Of Boxelder Creek From The Confluence With Coyote Run To The Denver Hudson Canal. Data Unavailable Stream 14.6 Miles Not_Assessed  
Mary Lake COSPUS23_0609 Huc: 10190003 Waterbody Map Freshwater Lake 6.2 Acres Good  
Milton Reservoir COSPMS04_0601 Huc: 10190003 Waterbody Map Freshwater Lake 1,603.0 Acres Impaired TMDL needed
N. And S. Walnut Creeks And Tribs COSPBD05_00 Huc: 10190003 Waterbody Map River 7.4 Miles Good  
North And South Walnut Creek, Walnut Creek COSPBD04b_00 Huc: 10190003 Waterbody Map River 1.4 Miles Good  
Riverside And Empire Reservoirs COSPLS03_0600 Huc: 10190003 Waterbody Map Freshwater Lake 6,224.7 Acres Not_Assessed  
S. Platte River -Burlington Ditch To Clear Creek COSPUS15_0600 Huc: 10190003 Mainstem Of The South Platte River From The Burlington Ditch Diversion In Denver, Colorado, To A Point Immediately Waterbody Map River 3.7 Miles Impaired TMDL needed
S. Platte River -Cherry Creek Confl To The Burlington Ditch COSPUS14_0600 Huc: 10190003 Mainstem Of The South Platte River From Bowles Avenue In Littleton, Colorado, To The Burlington Ditch Diversion In Denver, Colorado. Waterbody Map River 3.6 Miles Impaired TMDL needed
S. Platte River -Clear Creek To Big Dry Creek COSPUS15_0601 Huc: 10190003 Mainstem Of The South Platte River From The Burlington Ditch Diversion In Denver, Colorado, To A Point Immediately Waterbody Map River 23.2 Miles Impaired TMDL needed
Sand Creek COSPUS16a_00 Huc: 10190003 Waterbody Map River 14.3 Miles Impaired TMDL needed
So. Platte River Tributaries Below 19th Street In Denver COSPUS16c_0600 Huc: 10190003 Waterbody Map River 176.1 Miles Impaired TMDL needed
South Platte Middle Reservoirs COSPMS03a_0501 South Platte Middle Reservoirs Waterbody Map Freshwater Lake 168.3 Acres Not_Assessed  
South Platte River COSPLS01_0600 Huc: 10190003 Waterbody Map River 20.3 Miles Impaired TMDL needed
South Platte River - Big Dry To St Vrain COSPMS01a_0600 Huc: 10190003 Waterbody Map River 18.9 Miles Impaired TMDL needed
South Platte River - St. Vrain To Morgan County COSPMS01b_0600 Mainstem Of The South Platte River From A Point Immediately Below The Confluence With Big Dry Creek To The Weld/Morgan County Line. Waterbody Map River 51.6 Miles Impaired TMDL needed
South Platte River, Tributaries COSPLS02a_0600 Huc: 10190003 Waterbody Map River 94.1 Miles Not_Assessed  
Standley Lake COSPBD02_0600 Huc: 10190003 Waterbody Map Freshwater Lake 2,406.9 Acres Good  
Tributaries To South Platte COSPLS02b_0600 All Tributaries To The South Platte River, Including All Lakes, Reservoirs And Wetlands, North Of The South Platte River And Below 4,500 Feet In Elevation In Morgan County, North Of The South Platte River In Washington County, North Of The South Platte Ri Waterbody Map Stream 36.4 Miles Good  
Tributaries To South Platte River COSPMS03a_0600 All Tributaries To The South Platte River From A Point Immediately Below The Confluence With Big Dry Creek To The Weld/Morgan County Line, Except For Specific Listings In The Subbasins Of The South Platte River, And In Segments 4 And 5. Waterbody Map River 640.7 Miles Good  
Unnamed Hayesmount Tributary COSPMS03b_0600 Hayesmount Tributaries Including The Upper Hayesmount Tributary From The Source To The Confluence With Box Elder Creek And The Lower Hayesmount Tributaries From The Source To The Denver Hudson Canal. Waterbody Map Stream 24.5 Miles Not_Assessed  
Unnamed Tributary To Barr Lake COSPUS16f_0600 Barr Lake Tributary From The Source To The Denver Hudson Canal. Waterbody Map Creek 7.7 Miles Not_Assessed  
Unnamed Tributary To Lost Creek COSPMS06_0600 Lost Creek From Interstate 76 South, Including All Its Tributaries, Stock Ponds And Wetlands. Waterbody Map Stream 41.7 Miles Not_Assessed  
Unnamed Tributary To Second Creek COSPUS16d_0600 Second Creek From The Source To The OżBrian Canal. Waterbody Map Stream 18.3 Miles Not_Assessed  
Unnamed Tributary To Third Creek COSPUS16e_0600 Third Creek From The Source To The OżBrian Canal. Waterbody Map Stream 21.7 Miles Not_Assessed  
Upper And South Upper Big Dry Creeks COSPBD06_0600 Huc: 10190003 Waterbody Map River 6.5 Miles Not_Assessed  
Upper Derby Lake COSPUS23_0611 Huc: 10190003 Waterbody Map Freshwater Lake 43.1 Acres Good  
Woman And Walnut Creeks And Tributaries COSPBD04A_0600 Woman And Walnut Creeks And Tributaries Waterbody Map River 2.9 Miles Not_Assessed  

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Causes of Impairment for Reporting Year 2010

Colorado, Middle South Platte-Cherry Creek

Description of this table
NOTE: Click on the underlined "Cause of Impairment" value to see a listing of those waters with that cause of impairment.
Cause of Impairment Size of Assessed Waters with Listed Causes of Impairment
Rivers and
Streams (Miles)		 Lakes, Reservoirs,
and Ponds (Acres)
Cadmium 26.9  
pH   4,031.5
Dissolved Oxygen Saturation   1,603.0
Arsenic 3.6  
Nitrate/Nitrite (Nitrite + Nitrate as N) 45.8  
Ammonia, Un-ionized 45.8 4,031.5
Manganese 20.3  
Selenium 355.2  
Escherichia Coli (E. Coli) 111.9  

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Probable Sources Contributing to Impairments for Reporting Year 2010

Colorado, Middle South Platte-Cherry Creek Watershed

Description of this table
Probable Source Size of Assessed Waters with Probable Sources of Impairments
Rivers and
Streams (Miles)		 Lakes, Reservoirs,
and Ponds (Acres)
Contaminated Groundwater 26.9  
Source Unknown 116.7 702.9

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TMDL Alternatives by Cause of Impairment for Reporting Year 2010


Colorado, Middle South Platte-Cherry Creek Watershed


Description of this table
NOTE: Click on the underlined "Number of TMDL Alternatives by Cause of Impairment " value to see a listing of those Causes of Impairment.
Cause of Impairment Number of
TMDL Alternatives		 Rivers and
Streams (Miles)
Ammonia, Un-ionized color.gif 3 46
Nitrate/Nitrite (Nitrite + Nitrate as N) color.gif 3 46

Total: 6 TMDL Alternatives

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Cumulative TMDLs by Pollutant

Colorado, Middle South Platte-Cherry Creek Watershed

This chart includes TMDLs since October 1, 1995.

Description of this table
NOTE: Click on the underlined "Number of TMDLs Completed" value to see a listing of those approved TMDLs for the pollutant.
Pollutant Number of TMDLs Completed Number of Causes of
Impairment Addressed
Cadmium color.gif 2 2
Escherichia Coli (E. Coli) color.gif 1 1
Nitrate color.gif 1 1

Total: 4 TMDLs; 0 Causes of Impairment



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