HomeMy WebLinkAboutTIS 2026-02-23 Item 1C - Resolutions - 2025 Comprehensive Water Plan / 2024 Comprehensive Sewer PlanCity of Tukwila
Thomas McLeod, Mayor
Marty Wine, City Administrator
AGENDA BILL
ITEM NO.
1.C.
Agenda Item Adopt the Comprehensive Water System Plan Update and the Comprehensive
Sewer Plan Update
Sponsor Adib Altailal, Utilities Engineer
Legislative History February 23, 2026 Transportation & Infrastructure Services Committee
March 2, 2026 Regular Meeting, Consent Agenda
Recommended Motion
❑ Discussion Only Z Action Requested
MOVE TO approve the resolutions adopting the Comprehensive Water
System Plan and Comprehensive Sanitary Sewer Plan Updates.
EXECUTIVE SUMMARY
Council action is requested to adopt the updated comprehensive plans for the City's water and sanitary sewer
utilities. These plans document existing conditions, evaluate future needs, and identify system improvements that
may be needed over the planning horizon. Long range plans are required to be adopted by the City for regulatory
compliance. A resolution has been prepared for each Plan for Council's consideration.
DISCUSSION
The Water System Plan Update documents the current status of the City's water system and analyzes future
needs. Maintaining a current plan is required for Department of Health compliance. The plan received a SEPA
Determination of Non -Significance and has been reviewed by all required agencies.
The Sanitary Sewer Plan Update provides a 20-year outlook for managing the collection system and
accommodate projected growth, including the recommended capital improvement plan and potential funding
strategies. It received a SEPA Determination of Non -Significance and notes that any future projects will go
through all required reviews as they advance. The plan has been submitted to the Department of Ecology for
review and received concurrence.
ATTACHMENTS
• Draft Resolution to Adopt Comprehensive Water System Plan
• Comprehensive Water System Plan Update (September 2025)
• Draft Resolution to Adopt Comprehensive Sanitary Sewer Plan
• Comprehensive Sanitary Sewer Plan Update (December 2024)
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A RESOLUTION OF THE CITY COUNCIL OF THE
CITY OF TUKWILA, WASHINGTON, ADOPTING
THE 2025 COMPREHENSIVE WATER PLAN, AND
PROVIDING FOR WATER SERVICE POLICIES
FOR THE CITY, AND REPEALING RESOLUTION
NO. 1857.
WHEREAS, the City of Tukwila is an Optional Municipal Code city, subject to the
duties imposed under the provisions of Chapter 35A of the Revised Code of Washington;
and
WHEREAS, the Comprehensive Water Plan identifies specific actions and strategies
to manage and control the quality of the water system in Tukwila; and
WHEREAS, the City Council of the City of Tukwila has deemed it desirable to adopt
a Comprehensive Water Plan in accordance with the provisions of WAC 246- 290-100;
and
WHEREAS, the City Council of the City of Tukwila adopted the 2015 Comprehensive
Water Plan via Resolution No. 1857 on April 20, 2015.
NOW, THEREFORE, THE CITY COUNCIL OF THE CITY OF TUKWILA,
WASHINGTON, HEREBY RESOLVES AS FOLLOWS:
Section 1. The 2025 Comprehensive Water Plan and Appendices, dated September
2025, prepared by Carollo Engineers, are attached hereto and are hereby adopted by this
reference as if set forth in full.
Section 2. The Comprehensive Water Plan shall be revised every ten (10) years to
reflect changes in the City of Tukwila's Capital Improvement Program, which requires
facility modifications, as it relates to the standards outlined in WAC 246-290-100.
Section 3. Repealer. Resolution No. 1857 is hereby repealed.
2026 Legislation: Water Comprehensive Plan
Version: 02/13/2026
Staff: A. Altallal
Page 1 of 2
73
PASSED BY THE CITY COUNCIL OF THE CITY OF TUKWILA, WASHINGTON, at
a Regular Meeting thereof this day of , 2026.
ATTEST/AUTHENTICATED:
Andy Youn-Barnett, CMC, City Clerk Armen Papyan, Council President
APPROVED AS TO FORM BY:
City Attorney
Filed with the City Clerk:
Passed by the City Council:
Resolution Number:
Attachment: 2025 Comprehensive Water Plan and Appendices dated
September 2025
2026 Legislation: Water Comprehensive Plan
Version: 02/13/2026
Staff: A. Altallal
Page 2 of 2
74
Exhibit A
2025 Comprehensive Water Plan
ON FILE WITH CITY
Can be accessed electronically here:
https://records.tuk ila a
•
ov/ ebLink/ lectronicFile.aspx?docid=437096
75
A RESOLUTION OF THE CITY COUNCIL OF THE
CITY OF TUKWILA, WASHINGTON, ADOPTING THE
2025 SANITARY SEWER COMPREHENSIVE PLAN
AND PROVIDING FOR SANITARY SEWER SERVICE
POLICIES FOR THE CITY, AND REPEALING
RESOLUTION NO. 1827.
WHEREAS, the City of Tukwila is an Optional Municipal Code city, subject to the
duties imposed under the provisions of Chapter 35A of the Revised Code of Washington;
and
WHEREAS, the Sanitary Sewer Comprehensive Plan identifies specific actions and
strategies to manage and control the quality of the sanitary sewer system in Tukwila; and
WHEREAS, the City Council of the City of Tukwila has deemed it desirable to adopt
a Sanitary Sewer Comprehensive Plan in accordance with the provisions of WAC 173-
240-050;
NOW, THEREFORE, THE CITY COUNCIL OF THE CITY OF TUKWILA,
WASHINGTON, HEREBY RESOLVES AS FOLLOWS:
Section 1. The 2025 Sanitary Sewer Comprehensive Plan and Appendices dated
December 2024, prepared by Carollo Engineers, are attached hereto and hereby adopted
by this reference as if set forth in full.
Section 2. The Sanitary Sewer Comprehensive Plan shall be revised every ten (10)
years to reflect changes in the City of Tukwila Capital Improvement Program requiring
facility modifications, as it relates to the standards outlined in WAC 173-240-050.
Section 3. Repealer. Resolution No. 1827 is hereby repealed.
2026 Legislation: Sewer Comprehensive Plan
Version: 02/13/2026
Staff: A. Altallal
[signatures to follow]
Page 1 of 2
76
PASSED BY THE CITY COUNCIL OF THE CITY OF TUKWILA, WASHINGTON, at
a Regular Meeting thereof this day of , 2026.
ATTEST/AUTHENTICATED:
Andy Youn-Barnett, CMC, City Clerk Armen Papyan, Council President
APPROVED AS TO FORM BY:
City Attorney
Filed with the City Clerk:
Passed by the City Council:
Resolution Number:
Attachment: 2025 Sanitary Sewer Comprehensive Plan and Appendices dated
December 2024
2026 Legislation: Sewer Comprehensive Plan
Version: 02/13/2026
Staff: A. Altallal
Page 2 of 2
77
Exhibit A
2025 Comprehensive Sanitary Sewer Plan
ON FILE WITH CITY
Can be accessed electronically here:
https://records. uk ia a. ov/ ebLink/ lectronicFile.aspx?docid=4370
78