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Stormwater Submittal Form (PDF) Please fill out this form first to see which of the following forms, if any, you will also need to complete.
Minor Project Stormwater Form (PDF)
Small Project Stormwater Site Plan Short Form (PDF)
Major Project Stormwater Intake Form (PDF)
Flow Chart (PDF)
Raingarden Info
Soil Amendment Info
Dike vs Hillside Map (PDF)
Department of Ecology - 2014 SWMMWW
Cowlitz County Stormwater Drainage Manual
2019-2024 Western Washington Phase II Municipal Stormwater Permit
