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🌍 Environmental Rules/Erosion Control

Federal Way vs Kent

How do erosion control rules compare between Federal Way, WA and Kent, WA?

Federal Way and Kent have similar restriction levels.

Federal Way, WA

King County

Heavy Restrictions

Federal Way requires Temporary Erosion and Sediment Control (TESC) plans for construction projects disturbing 7,000 sf or more per state rules. Silt fencing, cover, and stabilized entrances are standard.

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Kent, WA

King County

Heavy Restrictions

Kent requires Temporary Erosion and Sediment Control (TESC) plans for construction projects disturbing 7,000 sf or more per state rules. Silt fencing, cover, and stabilized entrances are standard.

View full Kent rules →

Key Facts Comparison

FactFederal WayKent
TESC trigger7,000 sf disturbance7,000 sf disturbance
Wet seasonOct-Apr, 2-day cover ruleOct-Apr, 2-day cover rule
Required BMPsSilt fence and gravel padSilt fence and gravel pad
State permitOver 1 acreOver 1 acre

Highlighted rows indicate differences between cities.

Federal Way FAQ

Do small house projects need erosion control?

Small single-family remodels below 7,000 sf disturbance can use homeowner-level BMPs without a formal TESC plan.

What happens if silt leaves my site?

Federal Way can issue stop-work orders and fines, and the Department of Ecology can separately penalize under the construction permit.

Kent FAQ

Do small house projects need erosion control?

Small single-family remodels below 7,000 sf disturbance can use homeowner-level BMPs without a formal TESC plan.

What happens if silt leaves my site?

Kent can issue stop-work orders and fines, and the Department of Ecology can separately penalize under the construction permit.

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