The City's stormwater division works to control flooding, protect water quality, improve creek and lake habitat, and comply with state and federal requirements for clean water.  Actions undertaken include maintaining and cleaning stormwater facilities to avoid flooding, public education and outreach, responding to pollutant spills, inspections, reviewing stormwater plans for new development, and managing municipal operations to protect stormwater.   To accomplish these tasks, revenue is required.  In 2019, the MLT stormwater rate study reviewed stormwater division costs to deliver services and capital improvements against the revenue received from stormwater service fees.  The stormwater rate study report provides a detailed explanation of that analysis.

Mountlake Terrace Stormwater Rate Study Final Report 

How commercial & multi-family stormwater rates are calculated

2020 Stormwater Management Program Plan

DRAFT 2020 Stormwater Management Plan for Mountlake Terrace

Want to report a spill?

Spill Control Hotline - To report a pollutant spill to the stormwater system call the Public Works Department at 425-670-8264 between 7 a.m. and 3:30 p.m. weekdays. Call 911 after hours, on weekends or during holidays.

Mountlake Terrace was one of the first cities in the Puget Sound region to incorporate stormwater activities as part of a combined Utility Fund in the mid 1960s. The Stormwater Division works to protect water quality, enhance habitat, control flooding, and comply with state and federal requirements. Activities include managing the stormwater comprehensive facility maintenance plan, public education and outreach, site inspection to ensure proper maintenance of stormwater facilities, identification and control of pollutant discharges to the stormwater system, and spill cleanup response.

Hall Creek