TMDL image

Water Quality Improvement Projects (TMDLs)

Garfied County watershed map.

Garfield County projects

The following table lists overview information for water quality improvement projects (including total maximum daily loads, or TMDLs) for this county. Please use links (where available) for more information on a project.

To get additional information about the water bodies in Garfield County please use the Water Quality Assessment Query Tool.


WRIAs in Garfield County

Waterbody Name Pollutants Status TMDL Leads
Pataha Creek Ammonia-N
BOD (5-day)
EPA approved David T. Knight
Snake River, Middle
  • Clearwater River to Palouse River
Total Dissolved Gas EPA approved

Implementation in progress

Chad Brown
Tucannon-Pataha Creeks Fecal Coliform   David T. Knight
Temperature Streamlined TMDL

EPA approved



Last updated March 2016