TMDL image

Water Quality Improvement Projects (TMDLs)

Water Resource Inventory Area (WRIA) 49 map, Washington State.

WRIA 49: Okanogan

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

 

Counties


Waterbody Name Pollutant(s) Status** TMDL Lead
Okanogan River, Lower DDT
PCB
EPA approved

Has an implementation plan

Mark Peterschmidt
509-454-7843
Similkameen River

Tributary:

Palmer Creek

Arsenic EPA approved Mark Peterschmidt
509-454-7843

** Status will be listed as one of the following: Approved by EPA, Under Development or Implementation

For more information about WRIA 49:

* The Department of Ecology and other state resource agencies frequently use a system of 62 "Water Resource Inventory Areas" or "WRIAs" to refer to the state's major watershed basins.

Back to top of page

Last updated January 2013