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Stormwater drainage assistance
Information about stormwater drainage assistance in King County.
Report a problem
Report a flooding, drainage, or water quality problem in unincorporated King County.
City referrals for drainage concerns
Contact information for local cities and counties to report drainage and water quality problems
Drainage facility maintenance
Resources for maintaining privately-owned stormwater facilities.
Private drainage system engineers
Private companies that perform analysis, engineering, and/or design of stormwater drainage systems.
Private drainage maintenance contractors
Private companies that perform cleaning and maintenance services on stormwater drainage systems.