Surface Water Management

Surface Water Design Manual 

Updated December 30, 2016

The City incorporated and published the 2016 Bothell Surface Water Design Manual as Chapter 4 in the Bothell Design and Construction Standards on December 30, 2016.  The changes to Chapter 4 are effective immediately. View the Surface Water Design Manual as a PDF.

Here is a copy of the previous Surface Water Design Manual for those who were permitted prior to December 30, 2016 and will be under construction prior to 2022.  

General Program Overview

Surface water staff work to protect our local streams through storm system inspection, maintenance, construction oversight, stream monitoring, and education and outreach opportunities to foster healthy watershed stewardship.
To Report Illicit Discharges or Spills
Spills to our roads and storm drains are carried through our stormwater drainage system to local streams where they cause problems for people, pets, and the environment. Call us right away if you see a spill so we can clean it up before it can reach our local streams.

If the spill is a direct hazard to human or environmental health, dial 911. Otherwise, contact the Public Works Department at 425-806-6750 (during the day you will be routed to our Maintenance and Operations staff and after hours you will be transferred to the Police Department non-emergency number) or via our online form on our spill page. Thank you for being a part of our efforts to protect our streams.