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 WTD's conveyance inspection team conducts a routine inspection of a sewer line in Redmond.
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Much of WTD’s regional sewer system dates back to the 1960s, with some structures more than a century old! Keeping it reliable takes routine inspection and maintenance. Crews follow a 10-year cycle to inspect every inch of pipe, building a record of how conditions change over time. Some sections are checked more often, about every three years, depending on age, material, or location. We took a look at some of the work of our conveyance inspection team.
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 A replacement project for raw sewage pumps is underway at West Point Treatment Plant.
In April, the King County Executive transmitted a new proposal for the 2027 sewer rate. The proposed 12.75% would provide WTD with the resources we need to protect water quality and public health, while also outlining new actions to achieve long-term affordability for ratepayers.
We continue to face rising costs to comply with state and federal regulations, maintain and modernize aging infrastructure, and increase capacity to serve a growing population. At the same time, our longstanding commitment to strong financial stewardship helps reduce the overall cost of these investments.
This month, Moody's and S&P Global reaffirmed WTD's high bond credit ratings. Maintained for more than 15 consecutive years, these ratings make it possible for King County to borrow money at lower interest rates for critical infrastructure projects. Over the past decade, we have secured low-interest financing through the state revolving fund program, totaling $162 million in savings for ratepayers.
The King County Council must adopt a wholesale sewer rate by June 30 for it to take effect on Jan. 1, 2027.
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 Solar panels on top of the Power Quality Facility at West Point Treatment Plant.
Through federal and local energy-efficiency incentives, clean energy projects at West Point Treatment Plant earned WTD $5.2 million in savings for the 2024 tax year. Those savings mean borrowing less money for critical upgrades, lowering long-term costs, and supporting King County’s Strategic Climate Action Plan goals.
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 Attendees mingle at the King County Contractor Outreach & Networking Event.
WTD is embarking on a busy decade’s worth of capital projects to meet regulatory requirements, upgrade aging infrastructure, and increase capacity for a growing population. King County’s third annual Contractor Outreach & Networking Event, held in April, helps WTD connect with small businesses, consultants, and contractors, expanding access to economic opportunity across the region. The event also increases competition for bids, helping ensure work is completed at fair and prudent prices while protecting ratepayer dollars. More than 700 people attended this year’s event — the largest yet!
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 WTD interns on a tour of the Georgetown Wet Weather Treatment Station.
Complete your summer plans with a wastewater treatment plant tour! We offer tours at our three regional facilities, as well as our state-of-the-art Georgetown Wet Weather Treatment Station in Seattle!
We invite everyone ages 9 and older to learn how we clean wastewater and transform it into valuable resources. Registration is required, so be sure to reserve your spot in advance.
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Meet Julio Rodriguez, our new West Point Treatment Plant manager! Julio joined King County in 2016 through the Operator-in-Training Program.
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It takes all kinds of jobs to run a clean water utility! Our talented team brought their expertise beyond the job site to share career opportunities at the Women in Trades Fair.
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Check out membrane replacement underway at Brightwater Treatment Plant! Thanks to our staff’s care and maintenance, the original system lasted 5 years longer than expected.
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