2026年1月30日 · The Washington State Department of Ecology provides resources and information to protect and manage Washington's environment and natural resources.

We accredit environmental laboratories — including those that analyze drinking water, wastewater, surface water, groundwater, stormwater, biosolids, fish tissue, soil, sediments, and solid and …

Ecology has issued a Request for Information (RFI) to support implementation of Washington’s Recycling Reform Act. The RFI seeks technical information, datasets, and recommendations to …

2025年9月5日 · Ecology issued an official rebuke of a federal report being used to justify the rollback of climate regulations and released a new scientific analysis of local climate impacts.

About us Our vision: Our partnerships protect and sustain healthy land, air, water, and climate in harmony with a strong economy. Our mission: To protect, preserve, and enhance Washington’s …

Children's product manufacturers are required to report each year if their products contain chemicals of high concern to children (CHCC list) (WAC 173-334-130). Some of these chemicals are restricted …

Public comments are accepted over a 30-, 45-, or 60-day period. During that time, you can share your input with us about specific changes in the permits we regulate. We review all comments and then …

2026年1月6日 · As we enter 2026, let’s take a moment to check in on what a wild month of December weather has meant for snowpack, water supplies, and the potential for drought in the year ahead. …

2025年9月10日 · Ecology is working closely with toxicologists and staff at Washington Department of Fish and Wildlife to develop this approach. Phosphorus control treatments Phosphorus is a nutrient …

2025年11月20日 · Ecology releases revised draft study looking at potential environmental impacts of proposed Chehalis River flood control project..