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City Council adopted the 2019 Stormwater Management Manual of Western Washington for all future development, re-development, and construction projects effective June 30, 2022.
Permits issued by the City after June 30, 2022 shall be for project designed, reviewed, and constructed in accordance with BIMC 15.20 and the 2019 SWMMWW.
Site Assessment RequirementsEffective October 1, 2017, all projects are required to complete a Site Assessment Review (SAR) prior to submission of any land use or building permit. Forms & Information for the Site Assessment & Review (SAR)
Ordinance & Resolution to Implement SAR
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LID Ordinance
Approved by City Council at their December 13, 2016 meeting:
Useful links and guidance:
- 2019 Stormwater Management Manual for Western Washington
- Managing Stormwater Runoff for Rural Landowners: Options for Managing Surface Water Drainage
- 2012 Low Impact Development Technical Guidance Manual for Puget Sound
- Rain Garden Handbook for Western Washington
- Statewide Low Impact Development Training Program
- Western Washington Continuous Simulation Hydrology Model
- Department of Ecology Water Quality Permits
For more information, contact Engineering via email.