Stormwater Utility

Maintenance and Inspection Program

The goal of the City’s Inspection Program is to protect and restore our local water resources by ensuring a high performance level from current and future stormwater systems. This effort can reduce flooding and polluted runoff from reaching our streams, rivers, wetlands and Puget Sound.

Without regular maintenance and inspection, your system can become compromised, allowing water to directly discharged into local streams without sediment and pollution control. An unmaintained system could cause flooding on your property and those around you, resulting in costly damage or loss.

Stormwater Utility Rate Study

A new utility fee was adopted with the 2023 Fee Schedule on November 2nd, 2022, please refer to the fee schedule for current rates. An enhanced level of service was adopted by City Council on October 18, 2022.  Please check the City Council calendar for more details.

Stormwater Utility Rates and System Development Charges

Refer to the City's latest Fee Schedule for the current rates.

2023 Stormwater Rates

Residential $420.75   
Non-residential $420.75 Per equivalent service unit (ESU)*

*One equivalent service unit (ESU) is equal to 3,500 square feet of impervious surface.


Surface Water Development Charge (21.03.050)
New residential dwelling unit or commercial building with up to 2,500 square feet of impervious coverage $2,085.00
Each additional 250 square feet of impervious coverage over 2,500 square feet $208.50
Other structures or additions of up to 250 square feet of impervious coverage requiring a building permit $208.50 + $208.50 for each additional 250 square feet
Surface Water Retention Locks $32.00 plus tax



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