King County Water District 125

King County Water District 125
3460 S 148th ST Suite 110
Tukwila, WA 98168

(206) 242-9547   
Office Phone
(206) 248-1744   Fax
Developing in the District

Developer Checklist
Developer Extension applications are available at the District office for $50.00.
Two (2) Applications must be submitted to the District for approval. One will be
returned to you when the project is completed. A deposit is also required at the
time of submittal. For more information please contact the Office.
Developer Forms
Performance Bond Application

Developer's Extension Application

Maintenance Bond Application

Bill of Sale Form

Easement Form

Standard Water Notes
Construction Details
Installing Water Service / Water Availability Letter
Contractors developing property will need to have a completed Water Availability Letter
(WAL) in order to obtain a building permit.

Please make checks payable to Water District #125
Commercial / Multifamily                 $ 150.00
Single Family Residential                  $   75.00

Please bring the following items to the office.

*Completed Application
* Legal Description
* Vicinity Map
* Tax Parcel Number
* Payment (Check or Cash)
Applications take approximately 3-4 days to approve.

Applications are available to download and print on
the right or can be filled out at the District office.
Water Service and Meter Installation Fee

For installation fees please see the Charges Page

If you would like to apply to be on Water District 125's small works roster
please fill out the
attached application and return it to the District.
Capital Improvement Projects

Water District 125 is continuously upgrading our facilities to replace aging infrastructure
throughout the District.

Capital improvement projects are currently being designed for 2020. Check back here to see
what improvements the District makes throughout the following year.
Water District 125 Base Map