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9611 SE 36th Street
Mercer Island, WA 98040
Phone: 206.275.7793
Fax: 206.275.7663
Contact: Deb Estrada, City Clerk
Email: deb.estrada@mercer. . .
Hours: 8:30 am - 5:00 pm (Mon - Fri)
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City of Mercer Island / City Clerk / Interlocal Agreements

Interlocal Agreements

RCW 39.34 permits a local government to enter into interlocal agreements with other public agencies in the interest of cooperatively sharing resources for their mutual benefit. In accordance with RCW 39.34, the City of Mercer Island has executed interlocal agreements with other public agencies for various purposes over the years.
RCW 39.34.040 permits a public agency to list interlocal agreements on its website in lieu of having the agreement filed with the county auditorís office.
The agreements shown below are posted here to comply with RCW 39.34.040.  Original interlocal agreements are on file with the Mercer Island City Clerk and may be accessed by public records request or may be available through King County.  The City has posted all agreements with other local jurisdictions including Memorandums of Understanding or other local agency agreements, as well as interlocal agreements.
Click on the descriptions below to view the agreements.  They are in order of most recent to oldest. To find a specific agreement, hold down the "CRTL" key and press the "F" key to initiate the find function (on a Mac: use the Apple key and the "F"key).

Description: SCORE Inmate Housing
Effective Date: January 1, 2020

Description: Mercer Island School District: Counseling Services
Effective Date: September 1, 2019

DescriptionKing County Fire Departments: Automatic Aid
Effective Date: March 20, 2018

Description: King County: Animal Control Services
Effective Date: January 1, 2018

Description: Mercer Island School District: Use, Maintenance and Improvements of Certain School District Sports Fields
Effective Date: May 18, 2017

Description: DSHS - Respite Care Reimbursement
Effective Date: April 25, 2017

Description: City of Bellevue: Human Services Pooled Fund
Effective Date: October 28, 2016

Description: Regional Equitable Development Initiative (REDI) Fund
Effective Date: September 16, 2016

Description: Mercer Island School District: Law Enforcement and Court Services for School Bus Paddle Cameras Infractions
Effective Date: June 28, 2016

Description: WA State Department of Enterprise Services: Surplus Operations Services
Effective Date: May 18, 2016

Description: King County Metro: Alternative Transit Service Funding
Effective Date: April 26, 2016
Description: WA State Department of Recreation & Conservation: Island Crest Park Renovations Project Agreement
Effective Date: January 11, 2016

Description: WRIA 8: Watershed Basins
Effective Date: January 1, 2016

Description: Bellevue: Marine Patrol
Effective Date:  January 1, 2016
Description: Puget Sound Emergency Radio Network
Effective Date: October 23, 2015

Description: Mercer Island School District: School Impact Fees
Effective Date: September 24, 2015

Description: King County: Commute Trip Reduction
Effective Date: July 1, 2015

Description: Mercer Island Transportation Benefit District: Staff Services
Effective Date: March 2, 2015

Description: WA State Dept of Revenue: Mercer Island Transportation Benefit District Vehicle Fee
Effective Date: March 2, 2015

Description: WCIA: Mercer Island Transportation Benefit District Insurance
Effective Date: March 2, 2015

Description: King County: Automated Fingerprint Identification System
Effective Date: January 12, 2015

Description: Inmate Housing at SCORE Facility
Effective Date: January 1, 2015

Description: Mercer Island School District: Operation of the Mary Wayte Pool
Effective Date: January 1, 2015

Description: King County: Community Development Block Grant (CDBG) Program
Effective Date: January 1, 2015

Description: Braun NW Inc: Fire Apparatus
Effective Date: August 5, 2014​

Description: Chelan County: Housing of Inmates (Jail Services)
Effective Date: July 1, 2014

Description: King County: Parks Property Tax Levy Agreement
Effective Date: April 21, 2014

Description: King County Regional Coordination Framework for Disasters and Planned Events
Effective Date: April 21, 2014

Description: Seattle: Hearing Examiner Services
Effective Date: April 14, 2014

Description: DSHS: Let's Draw the Line Project
Effective Date: April 10, 2014

Description: Eastside Transportation Program
Effective Date: January 22, 2014

Description: King County Solid Waste Division: Solid Waste
Effective Date: November 6, 2013

Description: East Metro (Fire) Training Group
Effective Date: December 31, 2013

Description: WA State Dept of Natural Resources - Urban Forestry & Restoration
Effective Date: October 23, 2013

Description: Association of Washington Cities Employee Benefit Trust Health Care Program
Effective Date: October 22, 2013

Description: King County Flood Control Zone District
Effective Date: November 16, 2012

Description: Mercer Island School District - Island Crest Park Improvements
Effective Date: September 27, 2012

Description: King County: Cities Climate Collaboration
Effective Date: June 28, 2012

Description: King County: Regional Affordable Housing Program (RAHP)
Effective Date: January 1, 2012

Description: King County: Jail Services
Effective Date: January 1, 2012

Description: Mercer Island School District: Aid Services at High School Football Games
Effective Date: September 16, 2011

Description: Amended and Restated Interlocal Agreement for ARCH (A Regional Coalition for Housing)
Effective Date:   July 1, 2010
Description: Mercer Island School District: MI High School Stadium Improvement, Scheduling, Use & Operation
Effective Date:   January 8, 2010
Description: Zone One Fire Departments & Districts: Technical Rescue
Effective Date: December 1, 2009

Description: WA State: Water/Wastewater Agency Response Network (WARN)
Effective Date: June 15, 2009

Description: Seattle-KC Dept of Public Health/EMS: Basic Life Support Services
Effective Date: January 1, 2009
Kirkland: Marijuana Evidence Testing
Effective Date: December 31, 2008
Description: North East King County Regional Public Safety Communications Agency (NORCOM)
Effective Date: November 1, 2007

Description: Houston-Galveston Area Council: Cooperative Purchasing
Effective Date: June 18, 2007
Description: Downpayment Assistance, House Key Plus ARCH Program
Effective Date: June 6, 2007
Description: American Red Cross: Disaster Relief Supplies Container Maintenance
Effective Date: May 2, 2007

Description: Newcastle: Prisoner Transports
Effective Date: 2007
Description: Issaquah: Jail Services
Effective Date: September 15, 2006 
Description: Kirkland: Shared Building Services
Effective Date: 2005
Description: Coalition of Small Police Agencies: Authorizing Extraterritorial Law Enforcement
Effective Date:
Description: Naval Criminal Investigative Service - LInX (Law Enforcement Information Exchange)
Effective Date: October 6, 2005
Description:  WA State: Dept of General Administration: Purchasing
Effective Date: 2005
Description: WA State: Dept of Printing: Printing
Effective Date: 2004

Description: Newcastle: Municipal Court Services
Effective Date: 2004
Description: Senior Services of Seattle: Meals on Wheels Program
Effective Date: 2002 

Description: Department of Retirement Systems: PERS Information Sharing
Effective Date: April 29, 2002
Description:  Northshore Fire District: Live Fire Training Trailer
 Effective Date: 2001
Description: Woodinville Fire and Life Safety District: Mobile Fire Protection System Resource
Effective Date: 2000
Description: King County Dept of Transportation Road Services: Traffic Services & Roadway Maintenance
Effective Date: 1999
Description: Mercer Island School District: School Resource Officer
 Effective Date: 1997
Description: Renton: Marine Patrol
Effective Date: 1994
Description: Bellevue: Joint Firefighter Testing
Effective Date: 1993
Description: King County Library System: Mercer Island Library Property
Effective Date: 1993

Description: Northshore Fire District: Search & Rescue Training Trailer
Effective Date: 1993
Description: Pierce County: WA State Urban Search & Rescue
Effective Date: 1993
Description: KCDA: Purchasing Agreement
Effective Date: 1992

Description:      Eastside Public Safety Communications Agency (EPSCA)
 Effective Date: 1992
Description: Mercer Island School District: Fuel Purchase
Effective Date: 1992
Description: Puget Sound Regional Council
Effective Date: 1991
Description: King County Water & Land Resources Division - Open Space Acquisitions Unit: Conservation Futures
Effective Date: 1990
Description:WA State: Information Services Dept: Goods & Services (SCAN)
Effective Date: 1990

Description: WA State Parks & Recreation Commission: Boating Safety Program
Effective Date: 1990
Description: King County: Mutual Assistance for Fire and Emergency Medical Services
Effective Date: 1989
Mercer Island School District: South Mercer Playfields
Effective Date: 1985
Description: WA State: Dept of Revenue: State Administration of Sales & Use Tax
Effective Date: 1983
Description: Seattle: Mutual Aid Agreement (Fire)
Effective Date: 1982
Description: Washington Cities Insurance Authority
Effective Date: 1981
Description: Seattle: Water Purveyor
Effective Date: 1981
Description: WA State Transportation Commission (WA DOT), King County, Seattle, Bellevue, Mercer Island, Central Puget Sound Regional Transit Authority (Sound Transit): I-90 Memorandum of Agreement
Effective Date: 1976

Description: WA State Department of Natural Resources: Use of State Owned Aquatic Lands - Luther Burbank
Effective Date: November 1, 1973
Description: King County Wastewater Treatment Division: Sewage Disposal
Effective Date: 1961


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