![[logo] US EPA](http://www.epa.gov/epafiles/images/logo_epaseal.gif){kind=logo}
Return to home page
On This Page
On This Page
- Assessment Summary
- Causes of Impairment
- Probable Sources Contributing to Impairment
- TMDL Alternatives by Cause of Impairment
- Cumulative TMDLs by Pollutant
Oregon State Report
Other states that contain this watershed:
Washington, Walla Walla Watershed
For More Information:
Download Excel compatible information
Download GIS Information (Internet Explorer only)
Oregon, Walla Walla Watershed
Click on the watershed for an interactive map
Search for a waterbody within Walla Walla
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
Assessment Summary for Reporting Year 2006
Oregon, Walla Walla Watershed
Description of this table
Click here to list Threatened and Impaired Waters Only
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 |
|---|---|---|---|---|---|---|---|---|
| Birch Creek: Mm 0-11 | OR_1183796459999_0_11 | Walla Walla: 17070102 | Waterbody Map | River | 11.0 | Miles | Impaired | |
| Couse Creek: Mm 0-16.2 | OR_1183707459103_0_16.2 | Walla Walla: 17070102 | Waterbody Map | River | 16.2 | Miles | Impaired | |
| Dry Creek: Mm 0-22.8 | OR_1185319459703_0_22.8 | Walla Walla: 17070102 | Waterbody Map | River | 22.8 | Miles | Impaired | |
| Mill Creek: Mm 22.9-26 | OR_1184778460386_22.9_26 | Walla Walla: 17070102 | Waterbody Map | River | 3.1 | Miles | Impaired | |
| Mill Creek: Mm 26-28.4 | OR_1184778460386_26_28.4 | Walla Walla: 17070102 | Waterbody Map | River | 2.4 | Miles | Good | |
| North Fork Walla Walla River: Mm 0-18.7 | OR_1183076458986_0_18.7 | Walla Walla: 17070102 | Waterbody Map | River | 18.7 | Miles | Impaired | |
| Pine Creek: Mm 0-37.8 | OR_1186528460280_0_37.8 | Walla Walla: 17070102 | Waterbody Map | River | 37.8 | Miles | Impaired | |
| South Fork Walla Walla River: Mm 0-27.1 | OR_1183076458985_0_27.1 | Walla Walla: 17070102 | Waterbody Map | River | 27.1 | Miles | Impaired | |
| South Fork Walla Walla River: Mm 0-27.2 | OR_1183076458985_0_27.2 | Walla Walla: 17070102 | Waterbody Map | River | 27.2 | Miles | Impaired | |
| Vansycle Canyon: Mm 0-18.7 | OR_1188254460675_0_18.7 | Walla Walla: 17070102 | Waterbody Map | River | 18.7 | Miles | Impaired | |
| Walla Walla River: Mm 40.6-50.6 | OR_1189393460624_40.6_50.6 | Walla Walla: 17070102 | Waterbody Map | River | 10.0 | Miles | Impaired | |
| West Little Walla Walla River: Mm 4.6-11.5 | OR_1184802460383_4.6_11.5 | Walla Walla: 17070102 | Waterbody Map | River | 6.9 | Miles | Not_Assessed | |
Causes of Impairment for Reporting Year 2006
Oregon, Walla Walla
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) |
|||||||||||||||
| Nutrients - Eutrophication | 90.2 | ||||||||||||||
| pH | 44.9 | ||||||||||||||
| Heptachlor | 10.0 | ||||||||||||||
| Nutrients | 165.4 | ||||||||||||||
| Dissolved Oxygen | 27.2 | ||||||||||||||
| Iron | 37.8 | ||||||||||||||
| Temperature, Water | 86.1 | ||||||||||||||
| Sedimentation/Siltation | 116.5 | ||||||||||||||
Probable Sources Contributing to Impairments for Reporting Year 2006
Oregon, Walla Walla Watershed
No probable sources data have been reported to EPA for this watershed.
TMDL Alternatives by Cause of Impairment for Reporting Year 2006
Oregon, Walla Walla Watershed
No TMDL Alternatives reported.
Cumulative TMDLs by Pollutant
Oregon, Walla Walla 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 |  4 |
4 |
Total: 4 TMDLs; 0 Causes of Impairment
Search TMDL Documents
Full Text Search of TMDL Documents