For questions about the Wastewater Treatment Division website, please send an e-mail message or contact us at:

King Street Center
201 S. Jackson St., Suite 500
Seattle, WA 98104-3855
Phone: 206-684-1280
Fax: 206-684-1741
Telecommunication device for the deaf (TTY): 711

Get Directions to our office location in Seattle, Washington.

Staff Contacts

Puget Sound shoreline next to the West Point Treatment Plant, Seattle
Brightwater Treatment System Banner

Brightwater project public events and news releases

Public events

The Brightwater Center is now open. Learn more.

Brightwater Tunnel Media Kit

2012 Brightwater Project Cost Trend and Sewer Rate Impacts (PDF); also available as web page

Project Overview (and list of general contractors)

Brightwater: sewer hookups, septic systems and who pays

Brightwater Project Awards 2003-2012

November 15, 2012 news release -- Brightwater-to-Sound wastewater conveyance system begins full operation (also available as PDF)

MAP: Brightwater
MAP: Brightwater Conveyance System (tunnels)
MAP: Brightwater System Overall Hydraulic Profile 

For use by reporters and editors -- to schedule interviews and get information about the King County Wastewater Treatment Division for print and broadcast, please contact Annie Kolb-Nelson, WTD media relations, at 206-263-6157. Visit the WTD newsroom.

Brightwater news releases

2012

Nov. 15, 2012 -- Brightwater-to-Sound wastewater conveyance system begins full operation

Oct. 9, 2012 -- Brightwater earns 'Best Project' honors in regional engineering competition

Sept. 18, 2012 -- Brightwater Center earns prestigious LEED® Platinum certification

July 2, 2012 -- Sewer utility work requires temporary traffic revisions along 73rd Ave. N. E. in Kenmore 

Feb. 15, 2012 -- King County honored by NACWA Environmental Achievement Awards

Jan. 25, 2012 -- Brightwater project honored with state engineering achievement awards

Jan. 25, 2012 -- Infrastructure investments top 2012 priority list for clean-water utility

2011

Dec. 5, 2011 -- Brightwater tunneling contractors take top international industry honors

Dec. 5, 2011 -- Pump station glass art tower illuminates Brightwater's environmental purpose

Nov. 3, 2011 -- Brightwater partnership with IslandWood to broaden environmental education horizons

Oct. 11, 2011 -- King County’s clean-water utility hosts Brightwater Center open house, Oct. 15

Sept. 24, 2011 -- Public celebrates clean water as Brightwater begins operations

Sept. 15, 2011 -- Soon-to-open Brightwater plant already receiving kudos for energy efficiencies

Sept. 14, 2011 -- Public invited to celebrate Brightwater’s grand opening, Sept. 24

Sept. 6, 2011 -- Reported odors not related to Brightwater testing and startup

Aug. 17, 2011 -- No more daily grind — Brightwater tunnel mining now complete

July 13, 2011 -- Two tunnels soon to become one as Brightwater mining wraps up

June 1, 2011 -- Habitat restoration project planned at Horse Creek in Bothell

April 21, 2011 -- Earth Day event takes school outside for 125 students
>> More photos: Earth Day with the Executive (Facebook)

2010

Oct. 1, 2010 -- Construction resumes on final Brightwater tunnel; Tunnel machine rebuild completed on schedule, 1.9 miles of mining to go

June 24, 2010 -- Machines emerge in Bothell, Shoreline; tunneling now 85 percent complete

April 8, 2010 -- Infrastructure projects support regional environmental, economic goals; Clean-water investments a priority in 2010

April 5, 2010 -- Light at the end of the Brightwater tunnel as contractor inks deal to complete construction on "BT-3"

Feb. 18, 2010 -- King County Executive calls for new contractor to get Brightwater tunneling back on track

2009

Dec. 29, 2009 -- Engineers keep an eye on Brightwater tunnel alignment in Bothell

Dec. 18, 2009 -- Water quality quickly improves, beach reopened at West Point

Dec. 11, 2009 -- Brightwater outfall earns prestigious ‘Best of the Best’ engineering award

Sept. 10, 2009 -- Construction begins on Brightwater Environmental Education and Community Center

August 14, 2009 -- Brightwater tunnel boring machine repair plan in the works

June 23, 2009 -- Second tunnel boring machine to undergo needed repairs

June 8, 2009 -- Tunnel machine repairs to step up in late June

May 29, 2009 -- Brightwater tunnel machine temporarily idle for repairs and maintenance

May 27, 2009 -- No damage reported from broken water main at Brightwater construction site

May 19, 2009 -- Milestone reached on Brightwater tunneling, reclaimed water projects

May 19, 2009 -- Brightwater outfall earns local 'Project of the Year' award

May 7, 2009 -- Local architects praise Brightwater sustainability; Treatment plant education center wins prestigious design award

May 4, 2009 -- Brightwater outfall design team wins Award of Excellence

March 30, 2009 -- Construction accident reported at Brightwater central tunnel worksite

March 12, 2009 -- Sinkhole repairs complete, Kenmore road reopened

March 9, 2009 -- Repair work continues on Kenmore sinkhole

March 8, 2009 -- Brightwater project staff respond to Kenmore sinkhole

2008

Nov. 18, 2008 - Brightwater tunnel boring machine sees the light, marking major project milestone

Oct. 20, 2008 - Brightwater education event takes school outside for 160 local students

Sept. 9, 2008 - Smooth sailing for Brightwater outfall pipelines

Sept. 5, 2008 - Brightwater outfall pipeline tow rescheduled for late Sunday morning

Aug. 27, 2008 - Brightwater outfall construction to temporarily affect marine traffic from Everett to Shoreline

Aug. 6, 2008 - Brightwater project crew investigating reports of turbidity in Bothell's Horse Creek

April 24, 2008 - Public invited to tour Brightwater habitat restoration site on Saturday, May 10

April 17, 2008 - Lake Forest Park Water District and King County reach agreement on water supply program

Feb. 12, 2008 - Infrastructure investments, environmental improvements top clean-water agency priorities in 2008

2007

Oct. 22, 2007 - Education comes through volunteering at Brightwater habitat restoration event

July 17, 2007 - International interest in Brightwater Plant innovations

June 20, 2007 - Brightwater Environmental Education/Community Center receives state grant

May 21, 2007 - June 14 meeting will offer information on upcoming Brightwater construction bid package

April 23, 2007 - Sign up for Brightwater habitat restoration tours, April 28

March 21, 2007 - Christie True to head Wastewater Treatment Division

March 9, 2007 - Brightwater habitat project draws international visitors

March 6, 2007 - Wastewater infrastructure investments a major priority in 2007

Feb. 20, 2007 - Public invited to tour Brightwater habitat restoration site on Saturday, March 3

Jan. 24, 2007 - Community open house on Jan. 31 to focus on Brightwater construction at Point Wells

2006

Dec. 6, 2006 - Independent Analysis of Brightwater Geotechnical Report Confirms Lack of Seismic Faults

Nov. 21, 2006 - Snohomish County to receive its first Brightwater mitigation payment today

Nov. 2006 - Investigations continue into cause of fatal accident at Kenmore construction site

Nov. 13, 2006 - Report of fatal accident at Kenmore construction site

Oct. 20, 2006 - Report confirms no active faults on critical portion of Brightwater site

Oct. 15, 2006 - Final Brightwater tunneling bid comes in below estimate

Aug. 31, 2006 - Sims to join in celebration of apprenticeship programs at Seahawks 'Union Day' on Aug. 31

Aug. 30, 2006 - Concrete environmental benefits, cost savings found in Brightwater construction material

Aug. 22, 2006 - King County to seek contractors with design-build experience for outfall

Aug. 22, 2006 - Brightwater treatment technology promotes improvements to Puget Sound salmon and orcas

Aug. 15, 2006 - Habitat for Humanity finds a 'home' at Brightwater treatment plant site

Aug. 9, 2006 - King County selects contractor to build Brightwater central tunnel

July 11, 2006 - No evidence of active faults found in Brightwater seismic investigation

April 24, 2006 - Bid for Brightwater tunneling project $20 million below estimate

April 12, 2006 - Brightwater construction officially underway

Mar. 20, 2006 - King County secures major portion of 2006 funding for Brightwater reclaimed water project

Feb. 27, 2006 - Inflation and mitigation commitments affect Brightwater cost trend

Jan. 26, 2006 - Executive Sims recognized as 2005 'Economic Development Champion' for Brightwater-related work

2005

Dec. 29, 2005 - King County awards first Brightwater construction contract

Nov. 3, 2005 - Sims lauds King County's water conservation, says climate change requires continued savings; Executive says reclaimed water source an important part of future plans

Oct. 26, 2005 - Sims urges funding of Brightwater reclaimed water delivery system as climate change 'insurance'

Oct. 10, 2005 - Proposed agreement on Brightwater wastewater facilities will lead to 'a bright future' for two counties

Oct. 10, 2005 - Sims to describe details, benefits of Brightwater agreement with Snohomish County

Oct. 3, 2005 - County to procure design-build and construction management contracts for major marine outfall project

Sept. 23, 2005 - King County to hold public hearing on transfer of some Brightwater property for SR-9 widening project

Sept. 9, 2005 - Electrifying proposals requested for studying energy technologies at future Brightwater treatment plant

Aug. 2, 2005 - Brightwater called an 'extraordinary facility' by awards jury for landscape architects organization

July 27, 2005 - King County seeking bids for first major Brightwater construction contract

July 27, 2005 - Route 9 location reaffirmed as 'optimal site' for Brightwater wastewater treatment plant

July 19, 2005 - No major changes needed in environmental impact statement for Brightwater wastewater treatment system

July 14, 2005 - Bothell, King County agree on ways to mitigate impact of Brightwater wastewater facilities

June 24, 2005 - King County to enhance streams at Brightwater site with fallen trees from highway project

June 21, 2005 - Superior Court affirms decision upholding Brightwater project

June 20, 2005 - Brightwater Project Labor Agreement benefits workers, community

June 15, 2005 - Brightwater project receives major environmental permit from U.S. Army Corps of Engineers

May 9, 2005 - King County challenges legality of Snohomish County requirements on Brightwater wastewater facilities

April 26, 2005 - Proposed Brightwater labor agreement would ensure timely, cost-effective construction

April 4 , 2005 - King County and StockPot Inc. reach agreement to relocate culinary campus from Brightwater site

March 18, 2005 - King County promises to protect water quality while building Brightwater Treatment Plant

March 17, 2005 - Superior Court upholds growth management decisions on Brightwater as an essential public facility

March 17, 2005 - New wastewater treatment filters will help provide drought-proof source of reclaimed water

March 11, 2005 - Sammamish Valley Grange hosts open house March 19 on Brightwater reclaimed water program

March 3, 2005 - Largest industrial land acquisition for a public project earns project of the year award

Jan. 20, 2005 - Open house Feb. 3 about public art in Brightwater wastewater facilities

Jan. 7, 2005 - Fire, police training planned for vacant office building in north Bothell

2004

Nov. 5, 2004 - King County helping Snohomish County Fire District 7 conduct firefighter training

Oct. 14, 2004 - Open house Oct. 28 at new Brightwater Project Office

Sept. 29, 2004 - King County using seismic findings in design of Brightwater Treatment Plant

Sept. 22, 2004 - Hearing examiner approves shoreline permit for Brightwater tunnel portal, Puget Sound outfall

Sept. 10, 2004 - Three public meetings in September on reducing impacts of Brightwater wastewater pipeline

Sept. 3, 2004 - New information available about plans for Brightwater treatment system

Aug. 3, 2004 - Brightwater Final Environmental Impact Statement ruled adequate

July 29, 2004 - Community meeting Aug. 10 in Woodinville on design, mitigation for Brightwater treatment system

July 7, 2004 - King County and Campbell settle appeal of Brightwater FEIS

June 8, 2004 - Community meeting June 23 on shaping design of Brightwater Treatment Plant

June 2, 2004 - Early construction contract for Brightwater should streamline project, reducing costs, impacts and schedule

May 4, 2004 - New information available about plans for Brightwater treatment system

April 21, 2004 - Brightwater project earns international award for public participation process

April 7, 2004 - New information available about plans for Brightwater treatment system

March 9, 2004 - Learn about tunnel construction for Brightwater pipelines at public meetings in Kenmore, Bothell, Shoreline

March 3, 2004 - First Brightwater permit application includes plan for protecting nearshore habitat in Puget Sound

Jan. 28, 2004 - New information available about plans for Brightwater treatment system

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Related information

Contact us if you need more information about Brightwater.

King County Brightwater Project

22505 State Route 9
Woodinville, WA 98072
E-mail: Brightwater
Phone: 206-684-6799
TTY Relay: 711

Driving directions to Brightwater project office.