Upcoming contract opportunities

Informational Open House: Upcoming Contracting Opportunities – King County Wastewater Treatment Division

King County Wastewater Treatment Division (WTD) is hosting a virtual Informational Open House for interested firms to learn more about upcoming projects and events. For additional details, please visit WTD's Upcoming Contract Opportunities page.

During the open house, WTD will provide schedule updates on upcoming projects, information on upcoming construction, consulting, and work order contracts, procurement updates, and more.

More specific details will be shared closer to the event.

Event Date/Time:
Tuesday, November 10, 2026, at 11:00 AM (PST)
Duration: Approximately 1 hour
Location: Virtual (Microsoft Teams)

Registration is required:
Register for the Informational Open House

Alternative registration link:
https://tinyurl.com/WTDOpenHouse-11102026

Once registered, you will receive a confirmation email with the meeting link and an option to add the event to your calendar.

King County Contractor Outreach and Networking Event

Thank you for attending our third annual King County Contractor Outreach and Networking Event!

We had a fantastic turnout with over 800 attendees representing nearly 400 different businesses – our biggest event yet!

Additional information from the event can be found below:

• Updated Event Guide
• King County Capital Programs presentation slides
• Business Promotional Slides
• Visit our Procurement & Payable page to register with King County, sign up for an orientation, get certified, and more!

We value your feedback! Please fill out our feedback form so we can continue to add features and make improvements to future events.

Check out a short video from the event: LinkedIn  Facebook  Instagram

Contractor 1:1 Meetings

King County Wastewater Treatment Division (WTD) will be hosting opportunities for contractors and consultants to meet individually with WTD staff to discuss specific projects of interest. Below is a registration form to provide WTD with your firm’s date(s) of availability and project(s) of interest. We look forward to meeting your team!

When: January 22 to February 4, 2026

Where: Virtual meetings

Please register HERE.

Informational Open House: Upcoming Contracting Opportunities - King County Wastewater Treatment Division 

King County Wastewater Treatment Division (WTD) is hosting a virtual Informational Open House for interested firms to learn about upcoming projects and events. To encourage early teaming arrangements, we hope interested firms attend.

Event Date/Time

January 15, 2026, at 10:00 AM (PST)

Recording

Open house materials

• Presentation
• Attendance list

About the event

WTD will provide schedule updates on some of our collaborative delivery projects as well as a number of upcoming construction, consulting and work order contracts and highlight upcoming projects. A brief description of some of the projects presenting at this open house are below:

Brightwater Operations Center Roof & HVAC Replacement: This project will replace the roof and associated heating, ventilation, and air conditioning (HVAC) equipment on top of the Brightwater Treatment Plant Operations Center (BOC) (92,000SF). The project will also add a solar panel system and remove decommissioned equipment that is no longer operational.

South Plant Treatment & Electrical Improvements: Eight Projects all delivered under a single construction project. Undergoing evaluation for collaborative delivery.

Sammamish Plateau Diversion: This project will address regional conveyance system capacity needs by diverting flows out of the South Lake Sammamish Planning Area north. Diverting flows northward will alleviate capacity needs at several King County conveyance facilities.

South Plant DAFT Tank Rehabilitation: WTD will replace DAFTs 1 through 6 process equipment and covers at the STP. The DAFTs co-thicken primary sludge and waste activated sludge. Work includes performing demolition and replacement of the DAFT metal equipment components with new 316 Stainless Steel equipment, conversion of rail track system to cantilever system, new flat aluminum covers, ventilation system upgrades, access improvements, and pilot testing a sludge blanket level monitoring device. The equipment vendor package will include bridge beams, center column with internal motor, two rake arms, eight skimmer arms, two float boxes, and effluent Launder pipe.

Additionally, East Ship Canal Engineering RFP, Minor Asset Management Projects (MAMs) and Capital Asset Management Projects (CAMPs).