Puget Sound view from the SoundGuardian boat

Reducing nitrogen in Puget Sound where it matters

King County is committed to protecting water quality and reducing harm to fish and aquatic life in Puget Sound’s shallow bays caused by human sources of nitrogen. The Department of Natural Resources and Parks supports a science-based approach that capitalizes on innovation and technology and focuses public resources where they can make a real difference.…

Green roof at Sunset Pump Station

Making projects sustainable, resilient, and equitable

King County’s Wastewater Treatment Division (WTD) is being recognized for its commitment to sustainable communities and the environment. WTD’s Sunset / Heathfield Pump Stations and force main upgrade project was awarded an Envision® Silver Award this month for project sustainability. This is the second Envision-certified project for the region’s wastewater utility. In 2018, King County’s…

Aerial view of the West Point Treatment Plant

Charging ahead with reliable battery power for West Point Treatment Plant

The West Point Treatment Plant processes about 100 million gallons of wastewater each day, and up to 440 million gallons during heavy rains. While the plant’s operators are working hard to keep the treatment process flowing smoothly, a momentary lapse of power supply quality can bring vital equipment operations to a hard stop.   That’s why in February 2021, King County Executive Dow Constantine signed an emergency declaration and the King County Council authorized up to $65 million to provide West Point with more reliable power. The team…

Virtual ed program for HS students

Meaningful, virtual classes for high-schoolers are possible!

This July, our utility held an online program for high school-aged students to learn how to help protect clean water in our region. The Clean Water Ambassadors Certificate Program, done in partnership with the Mountains to Sound Greenway Trust, ran for four weeks and was open to all high school-aged youth in the King County…

Accessible meetings video

Welcome people of all abilities to your remote meetings and events!

Are you hosting remote meetings? King County Wastewater Treatment Division (WTD) would like to share some advice that will make your meetings more accessible. Not too long ago, a pandemic might mean intense social isolation for some. Today, technology lets us stay connected in real time, if not in person. Remote interactions are a lifeline…

A homeowner with their cistern

RainWise Goes Virtual to Support Contractors

For RainWise – a program designed to help property owners physically design and install rain gardens and cisterns – going virtual has had its challenges, but also unique opportunities. The RainWise program, a partnership between King County’s Wastewater Treatment Division (WTD) and Seattle Public Utilities (SPU), provides rebates for home and property owners to install…

Brown is the new ‘green’ as South Plant becomes a major local source of renewable biofuels

Purified renewable natural gas produced at South Treatment Plant in Renton is now a clean diesel alternative for local commercial trucks. Each year, the volume of renewable natural gas produced at the South Treatment Plant is the energy equivalent of about 1.7 million gallons of diesel fuel.