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State: Oregon
Waterbody ID: OR_1234905431631_0_21.8
Other ID: OR1234905431631_0_21.8
Location: SOUTH UMPQUA: 17100302
State Waterbody Type: River
EPA Waterbody Type: Rivers and Streams
Water Size: 21.8
Units: miles
Watershed Name: South Umpqua
On This Page
- Water Quality Assessment Status
- Causes of Impairment
- Probable Sources Contributing to Impairments
- TMDLs That Apply to This Waterbody
- Previous Causes of Impairment Now Attaining All Uses
State: Oregon
Waterbody ID: OR_1234905431631_0_21.8
Other ID: OR1234905431631_0_21.8
Location: SOUTH UMPQUA: 17100302
State Waterbody Type: River
EPA Waterbody Type: Rivers and Streams
Water Size: 21.8
Units: miles
Watershed Name: South Umpqua
Data are also available for these years: 2004
2006 Waterbody Report for Olalla Creek: MM 0-21.8
Click on the waterbody for an interactive map
Features
- About This Database (Integrated Report)
- Assessing Water Quality (Questions and Answers)
- Integrated Reporting Guidance
- Previous National Water Quality Reports
- EnviroMapper for Water
- AskWATERS
- EPA WATERS Homepage
- Exchange Network
- Assessment Database
- Statewide Statistical Surveys
- How's My Waterway Local Search tool
- Pollution Categories Summary Document
Water Quality Assessment Status for Reporting Year 2006
The overall status of this waterbody is Impaired.
Description of this table
| Designated Use | Designated Use Group | Status |
|---|---|---|
| Aquatic Life | Fish, Shellfish, And Wildlife Protection And Propagation | Impaired |
| Cold-Water Aquatic Life | Fish, Shellfish, And Wildlife Protection And Propagation | Not Assessed |
| Human Health | Aquatic Life Harvesting | Not Assessed |
| Resident Fish And Aquatic Life | Fish, Shellfish, And Wildlife Protection And Propagation | Good |
| Salmon And Trout Rearing And Migration | Fish, Shellfish, And Wildlife Protection And Propagation | Impaired |
Causes of Impairment for Reporting Year 2006
Description of this table
| Cause of Impairment | Cause of Impairment Group | Designated Use(s) | State TMDL Development Status |
|---|---|---|---|
| Alkalinity, Carbonate as CaCO3 | pH/Acidity/Caustic Conditions | Aquatic Life | TMDL needed |
| Ammonia, Total | Ammonia | Aquatic Life | TMDL needed |
| Cadmium | Metals (other than Mercury) | Aquatic Life | TMDL needed |
| Chloride | Salinity/Total Dissolved Solids/Chlorides/Sulfates | Aquatic Life | TMDL needed |
| Chromium, Hexavalent | Metals (other than Mercury) | Aquatic Life | TMDL needed |
| Copper | Metals (other than Mercury) | Aquatic Life | TMDL needed |
| Iron | Metals (other than Mercury) | Aquatic Life | TMDL needed |
| Lead | Metals (other than Mercury) | Aquatic Life | TMDL needed |
| Nickel | Metals (other than Mercury) | Aquatic Life | TMDL needed |
| Phosphate | Nutrients | Aquatic Life | TMDL needed |
| Selenium | Metals (other than Mercury) | Aquatic Life | TMDL needed |
| Silver | Metals (other than Mercury) | Aquatic Life | TMDL needed |
| Temperature | Temperature | TMDL completed | |
| Temperature, Water | Temperature | Salmon And Trout Rearing And Migration | TMDL needed |
| Trivalent Arsenic (Arsenic III) | Metals (other than Mercury) | Aquatic Life | TMDL needed |
| Zinc | Metals (other than Mercury) | Aquatic Life | TMDL needed |
Probable Sources Contributing to Impairment for Reporting Year 2006
No probable source data have been reported to EPA for this waterbody.
TMDLs That Apply to this waterbody
Description of this table
| TMDL Document Name | TMDL Date | TMDL Pollutant Description | TMDL Pollutant Source Type | Cause(s) of Impairment Addressed |
|---|---|---|---|---|
| Umpqua Basin Tmdl | Apr-12-2007 | Biochemical Oxygen Demand (BOD) | Nonpoint Source | Temperature |
| Umpqua Basin Tmdl | Apr-12-2007 | Escherichia Coli (E. Coli) | Point/Nonpoint Source | Temperature |
| Umpqua Basin Tmdl | Apr-12-2007 | Inorganic Nitrogen | Nonpoint Source | Temperature |
| Umpqua Basin Tmdl | Apr-12-2007 | Inorganic Phosphorus | Point/Nonpoint Source | Temperature |
| Umpqua Basin Tmdl | Apr-12-2007 | Nitrogen, Total | Nonpoint Source | Temperature |
| Umpqua Basin Tmdl | Apr-12-2007 | Nuisance Exotic Species | Nonpoint Source | Temperature |
| Umpqua Basin Tmdl | Apr-12-2007 | Phosphorus, Total | Point/Nonpoint Source | Temperature |
| Umpqua Basin Tmdl | Apr-12-2007 | Sediment Oxygen Demand | Point/Nonpoint Source | Temperature |
| Umpqua Basin Tmdl | Apr-12-2007 | Temperature | Point/Nonpoint Source | Temperature |
Previous Causes of Impairments Now Attaining All Uses
No causes of impairment are recorded as attaining all uses for this waterbody.