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Water Quality Improvement Projects (TMDLs)

Map showing Grant County, Washington State.

Grant 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 Grant County please use the Water Quality Assessment Query Tool.

 

WRIAs in Grant County

  • WRIA 36 - Esquatzel Coulee
  • WRIA 41 - Lower Crab
  • WRIA 42 - Grand Coulee
  • WRIA 43 - Upper Crab-Wilson
  • WRIA 44 - Moses Coulee
  • WRIA 53 - Lower Lake Roosevelt

Waterbody Name Pollutant(s) Status TMDL Lead(s)

Crab Creek, Upper

DO
FC
pH

On hold

Hydrological Connection from Lake Audubon to Crab Creek
This is a study conducted by a team of Gonzaga University undergraduate students to determine if a surface water connection between Lake Audubon and Upper Crab Creek exists. This study confirmed that a surface water connection between Lake Audubon and Upper Crab Creek was highly unlikely or a rare event.

Karin.Baldwin
509-329-3601

Moses Lake

Nitrogen
Total Phosphorus

Under development:

On legislative hold 3/03

David.T.Knight
509-329-3590

Quincy NPDES Permit TMDL for Wasteway DW237 and W645

Ammonia
BOD (5-day)
Fecal Coliform

EPA approved

Karin Baldwin
509-329-3601

 

Last updated October 2016