Stormwater Permitting

Guidance for building & Developing (SMC 13.104)

• Stormwater submittal intake tool for Single Family Residential  [online tool in progress]
• Construction Stormwater Pollution Prevention CHECKLIST (PDF)
• Map of USDA soils 6 & 63 showing parcel lines (Blue shaded area)
• Glossary of stormwater terms

Checklists for maintaining stormwater facilities (SMC 13.108)

Catch basin (PDF)
Infiltration drainline (PDF)
Trench drain (PDF) 
Drywell (PDF)
Detention pond (PDF)
Closed detention (manhole) (PDF)
Control structure/flow restrictor (such as inside manhole) (PDF)
Biofiltration (vegetated) swale (PDF)
Wet vegetated swale (PDF)
Wet ponds (series) (PDF)
Filter strip (PDF)
Bioretention (rain garden) (PDF)
Energy dissipator (PDF)
Debris barrier (trash rack) (PDF)
Permeable pavement (PDF)
(Please contact Sequim Public Works for other facilities.)

External links:

• 2012-14 State Stormwater Design Manual
• Rain Garden Handbook
• Low Impact Development (LID) Resources