On Jan. 1, 2023, two new Washington laws designed to reduce greenhouse gas emissions took effect: the Clean Fuel Standard (CFS) and the Climate Commitment Act (CCA).

Ecology released the final Environmental Impact Statement (EIS) for the Goldendale Energy Storage Project. The EIS examines significant adverse environmental impacts if the project is built. The document also identifies if those impacts may be reduced or eliminated through mitigation measures.

This series of colorful, interactive story maps describes the work of our Marine Sediment Monitoring Team. These scientists conduct long-term monitoring to assess and determine change over time in the condition of Puget Sound sediments and the animals that live in them.

We are committed to providing information and services that are accessible to people with disabilities. We provide accommodations for the public, Ecology employees, and job applicants.

Clean Earth/Burlington, located within the Port of Camas in Washougal, WA, is currently undergoing a formal dangerous waste cleanup process at their site. The company is publicly known as Clean Earth, legally named Burlington Environmental, and is a subsidiary of PSC Environmental Services.

Kitsap County Public Works Solid Waste Division, Kitsap Public Health District, and Ecology are working together to complete the first Five-Year Periodic Review for Olalla Landfill.

List of links to publications related to wetlands.

Burlington Environmental-Georgetown in Seattle consists of two sites, one to the east of Fourth Avenue South (known as “East of 4th”), and one to the west (known as “West of 4th”)

See our recent decisions on Section 401 water quality and CZM federal consistency.

A calculator for the CO2 system in seawater written in Excel/VBA. This Excel/VBA version included in the comparison of ten packages by Orr et al. (2015)

Description for the Ecology Water Quality Funded Activity Projects Zip File of ArcReader Map Layer for 12 Digit HUC Lookup

Interactive map and downloadable data for assistance provided by the tug stationed at Neah Bay.

The Columbia River Policy Advisory Group helps the Washington State Department of Ecology identify policy issues and priorities for developing water supply.

See a listing of all the federal facility permits that direct our work on the treatment, storage and disposal of dangerous and mixed wastes.

Interactive map and downloadable data for location-specific oil spill response plans.

Apply for a litter cleanup job with the Ecology Youth Corps.

See a listing of all the federal facility permits that direct our work on the treatment, storage and disposal of dangerous and mixed wastes.

Cleanup site on the north shore of the Columbia River that is the location of a former Alcoa aluminum smelter.

The most-recent version of CO2SYS: A calculator for the CO2 system in seawater written in Excel/VBA. This program takes any two parameters of the CO2 system in seawater(alkalinity, total inorganic carbon, pH, and fugacity or partial pressure of CO2), and calculates the other two parameters for given input and output conditions of temperature and pressure.

Addressing water quality impairments in the East Fork Lewis River watershed through collaborative work with government entities, non-profits and private industry.