QA planning process for NEP grantees
Printable and accessible PDF version of a flowchart showing the approval process for Quality Assurance Project Plans for National Estuary Program grantees.
Section 401 Pre-Filing Meeting Request Form
The EPA Clean Water Act Section 401, effective Sept. 11, 2020, requires all project proponents submit a pre-filing meeting request to the certifying authority at least 30 days prior to submitting a Section 401 Water Quality Certification request.
Whole effluent toxicity testing ensures wastewater does not harm aquatic life.
We collect data on the health of environmental systems that support plant and animal life.
Freshwater Aquatic Plants Manual
An illustrated guide to some of the more common freshwater aquatic plants found in Washington, such as hydrilla, milfoil, pondweeds, bladderworts, and more.
Models & spreadsheets
Computer models predict changes and spreadsheets calculate. We offer these tools to the public.
Eyes over Puget Sound
We use aerial photos and data from our monitoring stations and ferries to report on Puget Sound.