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Oregon State Report

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Water Quality Data Available for this Watershed

Oregon, Coast Fork Willamette Watershed


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Assessment Summary for Reporting Year 2006
Oregon, Coast Fork Willamette 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
Bear Creek: Mm 0-8.8 OR_1229831439553_0_8.8 Coast Fork Willamette: 17090002 Waterbody Map River 8.8 Miles Not_Assessed  
Big River: Mm 0-10.9 OR_1230689435954_0_10.9 Coast Fork Willamette: 17090002 Waterbody Map River 10.9 Miles Good  
Brice Creek: Mm 0-11.2 OR_1227708437033_0_11.2 Coast Fork Willamette: 17090002 Waterbody Map River 11.2 Miles Impaired  
Brice Creek: Mm 11.2-15.5 OR_1227708437033_11.2_15.5 Coast Fork Willamette: 17090002 Waterbody Map River 4.3 Miles Good  
Camas Swale Creek: Mm 0-7.9 OR_1230608439224_0_7.9 Coast Fork Willamette: 17090002 Waterbody Map River 7.9 Miles Not_Assessed  
Camas Swale Creek: Mm 0-9.4 OR_1229912439550_0_9.4 Coast Fork Willamette: 17090002 Waterbody Map River 9.4 Miles Impaired  
Camus Swale Trib: Mm 0-3.9 OR_1230361439281_0_3.9 Coast Fork Willamette: 17090002 Waterbody Map River 3.9 Miles Not_Assessed  
Cat Creek: Mm 0-2.3 OR_1226616436334_0_2.3 Coast Fork Willamette: 17090002 Waterbody Map River 2.3 Miles Good  
Cedar Creek: Mm 0-2 OR_1227288435463_0_2 Coast Fork Willamette: 17090002 Waterbody Map River 2.0 Miles Good  
Coast Fork Willamette River / Cottage Grove Reservoir: Mm 28 OR_1230233440232/1230663436995_28.5_31.3 Coast Fork Willamette: 17090002 Data Unavailable Freshwater Reservoir 1,041.1 Acres Impaired  
Coast Fork Willamette River: Mm 0-28.5 OR_1230233440232_0_28.5 Coast Fork Willamette: 17090002 Waterbody Map River 28.5 Miles Impaired  
Coast Fork Willamette River: Mm 0-31.3 OR_1230233440232_0_31.3 Coast Fork Willamette: 17090002 Data Unavailable River 31.3 Miles Impaired  
Coast Fork Willamette River: Mm 0-38.8 OR_1230233440232_0_38.8 Coast Fork Willamette: 17090002 Data Unavailable River 38.8 Miles Impaired  
Coast Fork Willamette River: Mm 28.3-38.8 OR_1230233440232_28.3_38.8 Coast Fork Willamette: 17090002 Data Unavailable River 10.5 Miles Good  
Coast Fork Willamette River: Mm 31.3-38.8 OR_1230233440232_31.3_38.8 Coast Fork Willamette: 17090002 Data Unavailable River 7.5 Miles Impaired  
Culp Creek: Mm 0-2.6 OR_1228492437033_0_2.6 Coast Fork Willamette: 17090002 Waterbody Map River 2.6 Miles Good  
Dennis Creek: Mm 0-1.4 OR_1230715435817_0_1.4 Coast Fork Willamette: 17090002 Waterbody Map River 1.4 Miles Impaired  
Fairview Creek: Mm 0-3.2 OR_1227154435826_0_3.2 Coast Fork Willamette: 17090002 Waterbody Map River 3.2 Miles Good  
King Creek: Mm 0-3.2 OR_1228878437417_0_3.2 Coast Fork Willamette: 17090002 Waterbody Map River 3.2 Miles Impaired  
Laying Creek: Mm 0-14.4 OR_1227708437032_0_14.4 Coast Fork Willamette: 17090002 Waterbody Map River 14.4 Miles Impaired  
Laying Creek: Mm 0-7.7 OR_1227708437032_0_7.7 Coast Fork Willamette: 17090002 Waterbody Map River 7.7 Miles Not_Assessed  
Lick Creek: Mm 0-2 OR_1227735436229_0_2 Coast Fork Willamette: 17090002 Waterbody Map River 2.0 Miles Not_Assessed  
Lilly Creek: Mm 0-3 OR_1228655435791_0_3 Coast Fork Willamette: 17090002 Waterbody Map River 3.0 Miles Good  
Little River: Mm 0-4.7 OR_1230765435688_0_4.7 Coast Fork Willamette: 17090002 Waterbody Map River 4.7 Miles Not_Assessed  
Martin Creek: Mm 0-3.4 OR_1227470435857_0_3.4 Coast Fork Willamette: 17090002 Waterbody Map River 3.4 Miles Impaired  
Mosby Creek: Mm 0-21.2 OR_1230137437800_0_21.2 Coast Fork Willamette: 17090002 Waterbody Map River 21.2 Miles Impaired  
Mosby Creek: Mm 0-3 OR_1230137437800_0_3 Coast Fork Willamette: 17090002 Data Unavailable River 3.0 Miles Impaired  
Mosby Creek: Mm 3-21.2 OR_1230137437800_3_21.2 Coast Fork Willamette: 17090002 Data Unavailable River 18.2 Miles Impaired  
Mosby Creek: Mm 4.7-14.6 OR_1230137437800_4.7_14.6 Coast Fork Willamette: 17090002 Data Unavailable River 9.9 Miles Impaired  
Puddin Rock Creek: Mm 0-2.1 OR_1227403435589_0_2.1 Coast Fork Willamette: 17090002 Waterbody Map River 2.1 Miles Not_Assessed  
Row River / Dorena Lake: Mm 7.4-11.3 OR_1230436438208/1229146437703_7.4_11.3 Coast Fork Willamette: 17090002 Data Unavailable Freshwater Lake 1,711.7 Acres Impaired  
Row River / Dorena Lake: Mm 7.4-20.8 OR_1230436438208/1229146437703_7.4_20.8 Coast Fork Willamette: 17090002 Data Unavailable Freshwater Lake 1,711.7 Acres Good  
Row River: Mm 0-20.8 OR_1230436438208_0_20.8 Coast Fork Willamette: 17090002 Waterbody Map River 20.8 Miles Impaired  
Row River: Mm 0-7.4 OR_1230436438208_0_7.4 Coast Fork Willamette: 17090002 Data Unavailable River 7.4 Miles Impaired  
Row River: Mm 11.3-20.8 OR_1230436438208_11.3_20.8 Coast Fork Willamette: 17090002 Data Unavailable River 9.5 Miles Not_Assessed  
Saltpeter Creek: Mm 0-2.8 OR_1226509437318_0_2.8 Coast Fork Willamette: 17090002 Waterbody Map River 2.8 Miles Good  
Sharps Creek: Mm 0-12.5 OR_1228381436955_0_12.5 Coast Fork Willamette: 17090002 Waterbody Map River 12.5 Miles Impaired  
Sharps Creek: Mm 0-15.2 OR_1228381436955_0_15.2 Coast Fork Willamette: 17090002 Waterbody Map River 15.2 Miles Impaired  

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Causes of Impairment for Reporting Year 2006

Oregon, Coast Fork Willamette

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)
Alkalinity, Carbonate as CaCO3 1.4  
Nutrients - Eutrophication 44.9  
Phosphate 38.8  
Aquatic Algae 31.3  
pH 52.5  
2,3,7,8-Tetrachlorodibenzofuran   1,041.1
Priority Organics Compounds 31.3  
Fecal Coliform 31.3  
Nutrients 38.7  
Atrazine 31.3  
Copper 31.3  
Phosphorus, Elemental 31.3  
Ammonia, Total 40.2  
Dissolved Oxygen 37.9  
Iron 38.8  
Temperature, Water 138.1  
Escherichia Coli (E. Coli) 31.3  
Habitat Alterations (Other Than Flow)   1,041.1
Mercury 40.2 2,752.7
Sedimentation/Siltation 83.6  

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Probable Sources Contributing to Impairments for Reporting Year 2006

Oregon, Coast Fork Willamette Watershed


No probable sources data have been reported to EPA for this watershed.

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TMDL Alternatives by Cause of Impairment for Reporting Year 2006


Oregon, Coast Fork Willamette Watershed


No TMDL Alternatives reported.

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Cumulative TMDLs by Pollutant

Oregon, Coast Fork Willamette 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
Temperature color.gif 9 9
Mercury color.gif 3 3

Total: 12 TMDLs; 0 Causes of Impairment



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