Thanks to a multi-agency cleanup partnership and over $100 million of MTCA funds, Bellingham's waterfront, once a heavy industrial zone, is now the heart of a growing neighborhood.

Stormwater runoff can flow directly into fresh or marine waters, or it may go into a storm-drain system and continue through storm pipes until discharging into the environment. Stormwater management ...

Climate change is increasing the uncertainty of Washington’s water supplies. Recent droughts created hardships for farmers, ranchers, small communities and aquatic species. Drought and climate impacts ...

A 2016 Washington State Supreme Court decision changed how counties decide to approve or deny building permits that use wells for a water source. In the Whatcom County vs. Hirst, Futurewise, et al.

We approve continuing education units (CEUs) for drillers in Washington and share information about CEU providers and educational opportunities. Well operators need approved CEUs when applying for or ...

Low Impact Development (LID) is a stormwater and land-use management strategy that tries to mimic natural hydrologic conditions by emphasizing the following techniques: Conservation Use of on-site ...

The Salish Sea Model is a powerful computer tool that simulates hydrodynamic and water quality processes to improve our understanding of how nutrients affect water quality in Puget Sound, the Strait ...

Have a wetland-related question? Find our regional wetland and subject-specific wetland contacts.

Ecology, local clean air agencies, and Tribes can restrict indoor and outdoor burning under certain conditions. Fire safety burn bans protect people and property when wildfire danger is high. Air ...

Under the state Growth Management Act, local governments are required to use the best available science to develop their policies and regulations for managing and protecting wetlands in their ...

See what we hope to accomplish in our strategic plan for protecting the state's wetlands. We're working across the state with Washington Tribes and agencies. This includes the state departments of ...