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On This Page 303(d) Listed Waters for 2006

Data are also available for these cycles:
2002 2004

Waterbody Changes from Prior Cycle

For More Information:

Oregon Assessment Report Exit EPA Disclaimer
State Water Quality Program Exit EPA Disclaimer

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Oregon Water Quality Assessment Report

Assessed Waters of Oregon by Watershed

Select a watershed from the list:
or click on the map to choose a watershed:
Search for a waterbody within Oregon
Enter Waterbody Name:
Display impaired waters and TMDL information only


NOTE: The data provided in this report differs from the information provided in Oregon's 2004/2006 Integrated Report, which is available at http://www.deq.state.or.us/wq/assessment/rpt0406.htm. This is a result of differences between the data format of Oregon's state assessment database and the protocols used to summarize data for this report. While Oregon assessed some Bays, the data was not available in square miles, and is not included in this report. For more details concerning the assessment of Bays, please see Oregons 2004/2006 Integrated Report.



Site-specific Targeted Monitoring Summary Results

Oregon (2006)

Description of this table
 
    14,976.1 4,539.0 1.0
      
   
                     
                     
                     
                     
    31,059.6 133,818.9 4.0
                     
                     
                     
           31,059.6     133,818.9     4.0
              5,989.0     .0     .0
                    25,070.6           133,818.9           4.0
46,035.7 138,357.9 5.0
114,823.0 618,934.0 Unavailable
40.1 22.4 Unavailable

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Summary of Water Quality Assessments for Each Waterbody Type
for Reporting Year 2006


Site-specific Targeted Monitoring Results

Oregon Rivers and Streams 2006

Description of this table

All
Rivers and Streams

114,823.0 Miles of Rivers and Streams

Assessed 46,035.7
Unassessed 68,787.3
Total Miles 114,823.0







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Description of this table

Assessed
Rivers and Streams

46,035.7 Miles of
Assessed Rivers and Streams

Good 14,976.1
Threatened .0
Impaired 31,059.6
Total Miles Assessed 46,035.7







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Description of this table

Threatened and Impaired
Rivers and Streams

31,059.6 Miles of
Threatened and Impaired
Rivers and Streams

5,989.0
.0
.0
25,070.6
Total Threatened and Impaired 31,059.6

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Site-specific Targeted Monitoring Results

Individual Designated Use Support
Oregon Rivers and Streams 2006

* Waters assessed for more than one designated use are included in multiple designated use groups below.

Description of this table
% Good
% Threatened
% Impaired
Aesthetic Quality 3,653.6 69.5 .0 30.5 color.gifcolor.gif
Anadromous Fish Passage 11,760.4 42.6 .0 57.4 color.gifcolor.gif
Aquatic Life 11,329.3 86.5 .0 13.5 color.gifcolor.gif
Bull Trout Spawning And Juvenile Rearing 730.5 34.3 .0 65.7 color.gifcolor.gif
Cold-Water Aquatic Life 2,379.9 79.5 .0 20.5 color.gifcolor.gif
Cool-Water Aquatic Life 3,264.5 82.5 .0 17.5 color.gifcolor.gif
Core Cold Water Habitat 2,445.6 15.4 .0 84.6 color.gifcolor.gif
Drinking Water 683.3 23.3 .0 76.7 color.gifcolor.gif
Estuarine Water 170.6 93.1 .0 6.9 color.gifcolor.gif
Fishing 73.1 1.5 .0 98.5 color.gifcolor.gif
Human Health 1,220.4 57.5 .0 42.5 color.gifcolor.gif
Livestock Watering 1.3 .0 .0 100.0 color.gif
Redband Or Lahontan Cutthroat Trout 1,614.4 16.8 .0 83.2 color.gifcolor.gif
Resident Fish And Aquatic Life 18,966.9 13.2 .0 86.8 color.gifcolor.gif
Resident Trout Spawning 1,121.2 44.4 .0 55.6 color.gifcolor.gif
Salmon And Steelhead Migration Corridor 538.3 .0 .0 100.0 color.gif
Salmon And Steelhead Spawning 2,859.2 44.4 .0 55.6 color.gifcolor.gif
Salmon And Trout Rearing And Migration 5,146.7 14.5 .0 85.5 color.gifcolor.gif
Salmonid Fish Rearing 1,652.3 3.3 .0 96.7 color.gifcolor.gif
Salmonid Fish Spawning 1,923.1 2.1 .0 97.9 color.gifcolor.gif
Shellfish Growing 679.2 4.4 .0 95.6 color.gifcolor.gif
Water Contact Recreation 7,251.1 59.8 .0 40.2 color.gifcolor.gif

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Site-specific Targeted Monitoring Results

Causes of Impairment
Oregon Rivers and Streams 2006

Description of this table
Temperature, Water Temperature color.gif 17,253.1
Sedimentation/Siltation Sediment color.gif 11,996.5
Nutrients Nutrients color.gif 11,272.7
Nutrients - Eutrophication Nutrients color.gif 10,507.6
pH pH/Acidity/Caustic Conditions color.gif 5,370.3
Dissolved Oxygen Organic Enrichment/Oxygen Depletion color.gif 4,261.4
Fecal Coliform Pathogens color.gif 2,687.4
Escherichia Coli (E. Coli) Pathogens color.gif 2,358.7
Iron Metals (other than Mercury) color.gif 1,359.6
Ammonia, Total Ammonia color.gif 998.4
Copper Metals (other than Mercury) color.gif 949.5
Chlorophyll-A Algal Growth color.gif 942.8
Mercury Mercury color.gif 882.3
Chromium, Hexavalent Metals (other than Mercury) color.gif 862.7
Nickel Metals (other than Mercury) color.gif 854.1
Manganese Metals (other than Mercury) color.gif 839.1
Alkalinity, Carbonate as CaCO3 pH/Acidity/Caustic Conditions color.gif 772.2
Zinc Metals (other than Mercury) color.gif 768.8
Phosphorus, Elemental Nutrients color.gif 768.1
Lead Metals (other than Mercury) color.gif 724.4
Phosphate Nutrients color.gif 701.9
Priority Organics Compounds Toxic Organics color.gif 694.4
Metals Metals (other than Mercury) color.gif 680.0
Habitat Alterations (Other Than Flow) Habitat Alterations color.gif 670.7
2,3,7,8-Tetrachlorodibenzofuran Dioxins color.gif 667.9
Organic Enrichment/Low Dissolved Oxygen Organic Enrichment/Oxygen Depletion color.gif 650.7
Cadmium Metals (other than Mercury) color.gif 646.5
Chloride Salinity/Total Dissolved Solids/Chlorides/Sulfates color.gif 611.2
Arsenic Metals (other than Mercury) color.gif 584.4
Silver Metals (other than Mercury) color.gif 539.6
Dieldrin Pesticides color.gif 502.6
Antimony Toxic Inorganics color.gif 486.4
Trivalent Arsenic (Arsenic III) Metals (other than Mercury) color.gif 470.5
DDT Pesticides color.gif 411.4
Selenium Metals (other than Mercury) color.gif 406.0
Atrazine Pesticides color.gif 405.5
Simazine Pesticides color.gif 374.2
Lindane Pesticides color.gif 353.9
Acidity pH < 6.5 or pH > 8.5 pH/Acidity/Caustic Conditions color.gif 330.4
Polychlorinated Biphenyls (PCBs) Polychlorinated Biphenyls (PCBs) color.gif 328.3
DDE Pesticides color.gif 326.3
Malathion Pesticides color.gif 281.2
Chlorpyrifos Pesticides color.gif 266.0
Pyrene Toxic Organics color.gif 252.0
Beryllium Metals (other than Mercury) color.gif 249.2
Aquatic Algae Algal Growth color.gif 243.1
Thallium Metals (other than Mercury) color.gif 241.4
Barium Radiation color.gif 241.4
Diethyl Phthalate Toxic Organics color.gif 240.8
Aldrin Pesticides color.gif 240.5
Flow Disruption, Groundwater Mining, Inadequate Hydrology Flow Alteration(s) color.gif 238.6
Chrysene Toxic Organics color.gif 230.3
EPTC Pesticides color.gif 227.5
Endrin Pesticides color.gif 225.3
Other Pollutants/Loss of Cover, Predatio Other Cause color.gif 224.6
Benzo[a]anthracene Toxic Organics color.gif 220.5
Phenol Toxic Organics color.gif 213.2
Benzo[g,h,i]perylene Toxic Organics color.gif 195.7
Turbidity Turbidity color.gif 173.8
Metals (other than Mercury) Metals (other than Mercury) color.gif 167.3
Alpha-BHC Pesticides color.gif 164.6
Prometon (Prometone) Pesticides color.gif 150.1
Fluoranthene Toxic Organics color.gif 148.9
Cyanide Toxic Inorganics color.gif 145.1
Diazinon Pesticides color.gif 144.9
DDD Pesticides color.gif 142.0
Salinity/Total Dissolved Solids Salinity/Total Dissolved Solids/Chlorides/Sulfates color.gif 142.0
Aluminum Metals (other than Mercury) color.gif 142.0
Tributylin TBT (Tributylstanne) Toxic Organics color.gif 142.0
Other Pollutants/Encroachment Habitat Alterations color.gif 130.1
Diuron Pesticides color.gif 127.3
DEHP (Di-Sec-Octyl Phthalate) Pesticides color.gif 124.1
Terbacil Pesticides color.gif 122.8
Parathion Pesticides color.gif 116.0
Endosulfan Pesticides color.gif 110.0
Fecal Bacteria Pathogens color.gif 107.5
Pronamide Pesticides color.gif 102.7
Trifluralin Pesticides color.gif 98.8
Pathogens Pathogens color.gif 90.1
Low Dissolved Oxygen Within The Top 3.0 Meters Organic Enrichment/Oxygen Depletion color.gif 88.8
Pesticides Pesticides color.gif 87.0
Dibutyl Phthalate Pesticides color.gif 86.6
Chronic High Turbidity/Possible Sedimentation Turbidity color.gif 78.5
Benzo[a]pyrene (PAHs) Toxic Organics color.gif 78.5
Carbaryl Pesticides color.gif 78.2
Nutrients - Toxics Toxic Organics color.gif 70.7
Chlordane Pesticides color.gif 65.4
Methoxychlor Pesticides color.gif 65.3
Guthion Pesticides color.gif 59.4
Chlorine Chlorine color.gif 55.3
Nitrates Nutrients color.gif 53.3
Not Applicable Other Cause color.gif 50.9
Anthracene Toxic Organics color.gif 48.6
Heptachlor Pesticides color.gif 45.0
Other Pollutants/Solids, Sludge Other Cause color.gif 40.5
Tetrachloroethylene Toxic Organics color.gif 36.5
Biological Cause Unknown - Impaired Biota color.gif 33.8
2,4,5-Tp (Silvex) Pesticides color.gif 32.6
Acenaphthene Toxic Organics color.gif 32.2
Isophorone Toxic Organics color.gif 31.1
Toxaphene Pesticides color.gif 26.5
Pentachlorophenol (PCP) Toxic Organics color.gif 24.8
Nutrients or Sediments Nutrients color.gif 24.2
Dinoseb Pesticides color.gif 24.2
Carbofuran Pesticides color.gif 23.7
Butyl Benzyl Phthalate Toxic Organics color.gif 23.7
Carbon Tetrachloride Toxic Organics color.gif 22.6
Benzene Toxic Organics color.gif 22.6
Dichlorobenzene (Mixed Isomers) Toxic Organics color.gif 22.6
1,2-Dichloroethane Pesticides color.gif 22.6
Hexachlorocyclopentadiene Toxic Organics color.gif 22.6
Heavy Metals Metals (other than Mercury) color.gif 22.6
N-Nitrosodiphenylamine Toxic Organics color.gif 22.6
1,2,4,5-Tetrachlorobenzene Toxic Organics color.gif 22.6
Trichloroethylene (TCE) Toxic Organics color.gif 22.6
1,1,1-Trichloroethane Toxic Organics color.gif 22.6
Vinyl Chloride Toxic Organics color.gif 22.6
Unknown Toxicity Total Toxics color.gif 22.6
Acrolein Pesticides color.gif 22.6
2,4,5-Trichlorophenol Pesticides color.gif 22.6
2,4,6-Trichlorophenol Toxic Organics color.gif 22.6
1,1,2-Trichloroethane Toxic Organics color.gif 22.6
Chlorobenzene (Mono) Toxic Organics color.gif 22.6
Hexachloroethane Toxic Organics color.gif 22.6
Excessive Aquatic Plants Noxious Aquatic Plants color.gif 22.6
Dimethyl Phthalate Pesticides color.gif 22.6
Other Inorganics Toxic Inorganics color.gif 22.6
Nitrobenzene Toxic Organics color.gif 22.6
2,2'-Dichlorodiisopropyl Ether Toxic Organics color.gif 22.6
Toluene Toxic Organics color.gif 22.6
Hexachlorobenzene Pesticides color.gif 22.6
2,4-Dichlorophenol Toxic Organics color.gif 22.6
1,1,2,2-Tetrachloroethane Toxic Organics color.gif 22.6
Chloroform Toxic Organics color.gif 22.6
2,2'-Dichlorodiethyl Ether Toxic Organics color.gif 22.6
2,4-Dinitrotoluene Toxic Organics color.gif 22.6
Beta-BHC Pesticides color.gif 22.6
Alachlor Pesticides color.gif 10.1
Naphthalene Pesticides color.gif 8.5
Phenanthrene Toxic Organics color.gif 8.5
Enterococcus Bacteria Pathogens color.gif 1.3

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Site-specific Targeted Monitoring Results

Probable Sources
Oregon Rivers and Streams 2006

No probable sources of impairments reported.

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Site-specific Targeted Monitoring Results

Oregon Lakes, Reservoirs, and Ponds 2006

Description of this table

All
Lakes, Reservoirs, and Ponds

618,934.0 Acres of Lakes, Reservoirs, and Ponds

Assessed 138,357.9
Unassessed 480,576.1
Total Acres 618,934.0







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Description of this table

Assessed
Lakes, Reservoirs, and Ponds

138,357.9 Acres of
Assessed Lakes, Reservoirs, and Ponds

Good 4,539.0
Threatened .0
Impaired 133,818.9
Total Acres Assessed 138,357.9







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Description of this table

Threatened and Impaired
Lakes, Reservoirs, and Ponds

133,818.9 Acres of
Threatened and Impaired
Lakes, Reservoirs, and Ponds

.0
.0
.0
133,818.9
Total Threatened and Impaired 133,818.9

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Site-specific Targeted Monitoring Results

Individual Designated Use Support
Oregon Lakes, Reservoirs, and Ponds 2006

* Waters assessed for more than one designated use are included in multiple designated use groups below.

Description of this table
% Good
% Threatened
% Impaired
Aesthetic Quality 92,907.4 1.7 .0 98.3 color.gifcolor.gif
Anadromous Fish Passage 97,054.1 1.5 .0 98.5 color.gifcolor.gif
Aquatic Life 5,942.3 97.8 .0 2.2 color.gifcolor.gif
Cold-Water Aquatic Life 6,427.2 53.4 .0 46.6 color.gifcolor.gif
Cool-Water Aquatic Life 2,001.5 .0 .0 100.0 color.gif
Fishing 212.3 .0 .0 100.0 color.gif
Human Health 3,436.6 100.0 .0 .0 color.gif
Resident Fish And Aquatic Life 105,044.1 2.1 .0 97.9 color.gifcolor.gif
Water Contact Recreation 9,357.0 15.9 .0 84.1 color.gifcolor.gif

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Site-specific Targeted Monitoring Results

Causes of Impairment
Oregon Lakes, Reservoirs, and Ponds 2006

Description of this table
Dissolved Oxygen Organic Enrichment/Oxygen Depletion color.gif 83,135.4
Habitat Alterations (Other Than Flow) Habitat Alterations color.gif 83,072.2
Sedimentation/Siltation Sediment color.gif 80,691.8
pH pH/Acidity/Caustic Conditions color.gif 78,785.1
Chlorophyll-A Algal Growth color.gif 77,902.1
Temperature, Water Temperature color.gif 68,021.1
Nutrients Nutrients color.gif 19,112.3
Aquatic Algae Algal Growth color.gif 19,012.5
Mercury Mercury color.gif 16,716.6
Nutrients - Eutrophication Nutrients color.gif 11,686.6
Dieldrin Pesticides color.gif 10,452.4
Turbidity Turbidity color.gif 7,870.4
Escherichia Coli (E. Coli) Pathogens color.gif 7,870.4
Fecal Coliform Pathogens color.gif 7,870.4
2,3,7,8-Tetrachlorodibenzofuran Dioxins color.gif 1,041.1
Metals (other than Mercury) Metals (other than Mercury) color.gif 829.4
Phosphorus, Elemental Nutrients color.gif 690.7
Nitrates Nutrients color.gif 308.3
Zinc Metals (other than Mercury) color.gif 130.1
Copper Metals (other than Mercury) color.gif 130.1
Phosphate Nutrients color.gif 130.1
Alkalinity, Carbonate as CaCO3 pH/Acidity/Caustic Conditions color.gif 130.1
Lead Metals (other than Mercury) color.gif 130.1
Cadmium Metals (other than Mercury) color.gif 130.1
Iron Metals (other than Mercury) color.gif 130.1
Selenium Metals (other than Mercury) color.gif 130.1
Silver Metals (other than Mercury) color.gif 130.1
Chromium, Hexavalent Metals (other than Mercury) color.gif 130.1
Chloride Salinity/Total Dissolved Solids/Chlorides/Sulfates color.gif 130.1
Nickel Metals (other than Mercury) color.gif 130.1
Ammonia, Total Ammonia color.gif 130.1
Trivalent Arsenic (Arsenic III) Metals (other than Mercury) color.gif 130.1

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Site-specific Targeted Monitoring Results

Probable Sources
Oregon Lakes, Reservoirs, and Ponds 2006

No probable sources of impairments reported.

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Site-specific Targeted Monitoring Results

Oregon Coastal Shoreline 2006

Description of this table
Pie chart not displayed because total size for Coastal Shoreline is unavailable.
Assessed 5.0
Unassessed Unavailable
Total Miles Unavailable







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Description of this table

Assessed
Coastal Shoreline

5.0 Miles of
Assessed Coastal Shoreline

Good 1.0
Threatened .0
Impaired 4.0
Total Miles Assessed 5.0







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Description of this table

Threatened and Impaired
Coastal Shoreline

4.0 Miles of
Threatened and Impaired
Coastal Shoreline

.0
.0
.0
4.0
Total Threatened and Impaired 4.0

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Site-specific Targeted Monitoring Results

Individual Designated Use Support
Oregon Coastal Shoreline 2006

* Waters assessed for more than one designated use are included in multiple designated use groups below.

Description of this table
% Good
% Threatened
% Impaired
Shellfish Growing 5.0 20.0 .0 80.0 color.gifcolor.gif

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Site-specific Targeted Monitoring Results

Causes of Impairment
Oregon Coastal Shoreline 2006

Description of this table
Fecal Coliform Pathogens color.gif 4.0

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Site-specific Targeted Monitoring Results

Probable Sources
Oregon Coastal Shoreline 2006

No probable sources of impairments reported.

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Oregon Causes of Impairment for Reporting Year 2006


Description of this table
NOTE: Click on the underlined Cause of Impairment Group to see a list of specific state causes of impairment making up the Cause of Impairment Group. See also Pollution categories summary document (PDF) (20 pp, 557K, About PDF) for brief, non-technical descriptions of general cause categories.
Size of Assessed Waters with Listed Causes of Impairment
Algal Growth 1,004.1 92,136.5
Ammonia 998.4 130.1
Cause Unknown - Impaired Biota 33.8
Chlorine 55.3
Dioxins 667.9 1,041.1
Flow Alteration(s) 238.6
Habitat Alterations 677.2 83,072.2
Mercury 882.3 16,716.6
Metals (other than Mercury) 2,453.4 959.5
Noxious Aquatic Plants 22.6
Nutrients 16,077.4 31,098.6
Organic Enrichment/Oxygen Depletion 4,798.5 83,135.4
Other Cause 275.5
Pathogens 3,469.4 7,870.4 4.0
Pesticides 825.6 10,452.4
pH/Acidity/Caustic Conditions 6,021.9 78,915.3
Polychlorinated Biphenyls (PCBs) 328.3
Radiation 241.4
Salinity/Total Dissolved Solids/Chlorides/Sulfates 753.2 130.1
Sediment 11,996.5 80,691.8
Temperature 17,253.1 68,021.1
Total Toxics 22.6
Toxic Inorganics 509.0
Toxic Organics 974.6
Turbidity 252.3 7,870.4

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Oregon Probable Sources Contributing to Impairments
for Reporting Year 2006

No probable sources reported.

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Oregon TMDL Alternatives by Cause of Impairment 2006


No TMDL Alternatives reported.

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Oregon Previously 303(d)-Listed Waters Now Attaining All Applicable Water Quality Standards


No previously 303(d)-listed waters reported as now attaining all applicable water quality standards.

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Oregon Causes of Impairment for 303(d) Listed Waters

Description of this table
NOTE: Click on a cause of impairment (e.g. pathogens) to see the specific state-reported causes that are grouped to make up this category. Click on the "Number of Causes of Impairment Reported" to see a list of waters with that cause of impairment.
Temperature color.gif 1,029
Pathogens color.gif 196
Metals (other than Mercury) color.gif 155
Organic Enrichment/Oxygen Depletion color.gif 103
Sediment color.gif 60
pH/Acidity/Caustic Conditions color.gif 46
Algal Growth color.gif 35
Pesticides color.gif 33
Mercury color.gif 25
Cause Unknown - Impaired Biota color.gif 21
Toxic Organics color.gif 9
Polychlorinated Biphenyls (PCBs) color.gif 8
Ammonia color.gif 4
Turbidity color.gif 4
Nutrients color.gif 3
Other Cause color.gif 1

Total: 1,732 Causes of Impairment

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Oregon Cumulative TMDLs by Pollutant

This chart includes TMDLs since October 1, 1995.

Description of this table
NOTE: Click on the underlined "Pollutant" value to see associated listed waters for which a TMDL was developed. Click on the underlined "Number of TMDLs" value to see a listing of those TMDLs for the pollutant.
Number of Causes of
Impairment Addressed
Temperature color.gif 817 817
Escherichia Coli (E. Coli) color.gif 117 117
Bacteria color.gif 81 81
Sedimentation color.gif 39 39
Dissolved Oxygen color.gif 35 35
pH color.gif 19 19
Phosphorus, Total color.gif 13 17
Chlorophyll-A color.gif 11 11
Inorganic Phosphorus color.gif 10 10
Mercury color.gif 10 10
Total Dissolved Gas color.gif 10 10
Biochemical Oxygen Demand (BOD) color.gif 8 16
Nitrogen, Total color.gif 7 14
Sediment color.gif 7 7
Fecal Coliform color.gif 6 6
Aquatic Weeds or Algae color.gif 5 5
Inorganic Nitrogen color.gif 5 5
DDT color.gif 4 4
Dieldrin color.gif 4 4
Phosphorus color.gif 4 4
Turbidity color.gif 4 4
Nitrate color.gif 3 3
Nutrients color.gif 3 3
Pesticides color.gif 3 6
Ammonia color.gif 2 2
DDD color.gif 2 2
DDE color.gif 2 2
Iron color.gif 2 2
Nuisance Exotic Species color.gif 2 2
Algal Growth/Chlorophyll A color.gif 1 1
Ammonia Nitrogen color.gif 1 1
Dioxins color.gif 1 1
Lead color.gif 1 1
Polychlorinated Biphenyls (PCBs) color.gif 1 1
Sediment Oxygen Demand color.gif 1 1

Total: 1,241 TMDLs; 1,263 Causes of Impairment Addressed


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Oregon Cumulative Number of TMDLs

EPA Fiscal Year starts October 1 and ends September 30.


Description of this table
NOTE: Click on the underlined "Number of TMDLs Completed" value for a detailed list of the TMDLs for the fiscal year.
1996 color.gif 5 5
1999 color.gif 11 11
2000 color.gif 73 73
2001 color.gif 190 190
2002 color.gif 67 67
2003 color.gif 49 49
2004 color.gif 41 41
2005 color.gif 21 21
2006 color.gif 207 207
2007 color.gif 192 192
2008 color.gif 32 32
2009