Health and safety

Our Mission and Units

Removing beavers and/or their dams can be difficult. If you are experiencing drainage issues because of beaver dams, a beaver deceiver may help. 

The Manual of Best Management Practices for Maintenance of Agricultural Waterways in King County provides suggestions for how to dredge agricultural drainageways while protecting salmon and water quality.

Environmental education and training programs appropriate for college-aged adults and older, provided by King County.

Find a laboratory project manager or unit supervisor

Come join us! Build your path to the future. The King County Department of Natural Resources and Parks (DNRP) has been sponsoring Washington Conservation Corps (WCC) crews since 1994. WCC provides the perfect opportunity to learn by doing through hands-on experience.

The Dog Doogity music video spreads the message to scoop dog poop because "nobody wants to swim in poo."

The companies below perform drainage system cleaning and maintenance services. These companies have indicated an interest in appearing on this list by responding to Water and Land Resources Division notices.

Environmental education programs appropriate for elementary school aged children, provided by King County.

This web page addresses only software programs referenced in the Surface Water Design Manual (SWDM).

We want to help you make sure your wastewater system is functioning properly to protect your family, your property, and the environment.

There are eight units at the Environmental Lab:

The kokanee is a salmon native to King County. Local governments, residents, and organizations are working together to preserve this fish’s future.

Find contacts for local cities and counties to report drainage and water quality problems. This webpage is updated when possible, however some contacts may no longer be active.

Environmental education programs appropriate for middle and high school aged youth, provided by King County.

Family-friendly environmental education programs appropriate for young children.

The private companies on the list below perform analysis, engineering, and/or design of stormwater drainage systems. These firms have indicated an interest in appearing on this list by responding to Water and Land Resources Division notices.

Amending the 2021 Surface Water Design Manual King County has amended the 2021 edition of the Surface Water Design Manual (SWDM), adding bioretention using WA Ecology approved High Performance Bioretention Soil Mixes (HPBSM) as an approved water quality treatment facility and as an allowable flow control best management practice (FCBMP).

Reed canarygrass is an aggressive, noxious weed. It can grow so thick in waterways that it causes sediment to build up and restrict flow in a waterway.

Links related to King County Environmental Lab

Information about where and how to report a flooding, drainage, or water quality problem in King County.

Schools have impervious surfaces, like rooftops, concrete and asphalt. These surfaces contribute to surface water problems. Schools can maintain their stormwater facilities and work with us to meet our community education goals.

Tarifa de la Gestión de Aguas Superficiales del Condado de King

We support the King County Wastewater Treatment Division by collecting environmental samples during wastewater overflow events and analyzing them.