Water quality

Ecology is responsible for keeping Washington waters clean and helping polluted waters recover.
Ecology is responsible for keeping Washington waters clean and helping polluted waters recover.

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Puget Sound Nutrient Watch: A new blog series

This Puget Sound Nutrient Watch looks at the importance of excess nutrients and how they affect Puget Sound.

Ecology has received a new request to use Imidacloprid to control burrowing shrimp

We are evaluating an application requesting permission to use the pesticide Imidacloprid to control burrowing shrimp in Willapa Bay and Grays Harbor.

Eyes Over Puget Sound: River flows above normal

Cooler and wetter conditions set the stage for a favorable supply of freshwater in June 2017.

Finding a balanced approach for aquatic plant management
Our draft environmental study reviews eight new chemicals, five alternatives for management, and updates information on other chemicals currently covered under the permits.
Commercial net pen aquaculture planning meeting March 23
You are invited to attend the next planning meeting for updating the Recommendations for Managing Commercial Net Pen Aquaculture in Washington's straits and estuaries.
Even on the 'dry side' we can have healthy streamsides
Riparian restoration experts face many challenges including poor seedling survival, slow tree growth, disconnected floodplains, livestock damage, and competition from noxious weeds.
Clean water funding continues to support local communities

This year, we’re proposing $188 million in financial assistance for 165 high-priority clean-water projects.

New commercial fish farm (net pen) management tools being developed: Provide your input on project scoping by March 4
Washington's 30-year-old management guidelines for commercial, marine fish farms (net pens) are getting an overhaul.
Money available for forest and farm land improvements in Spokane River watershed
Livestock producers, dry-land farmers, and forestry operations are encouraged to apply for financial and technical assistance to adopt conservation practices to protect and restore their property.
Affordable Clean Water Loans are a lifeline when your septic system fails
There are about a million privately-owned and operated septic systems across Washington and many are at risk of failing due to old age.