Septic Help
Got Septic?
Get information about the King County Wastewater program 
  • Resources
  • Brochures
  • Septic Maps/as built
  • Maintenance providers
The Public Health Wastewater Program helps to ensure that over 115,000 septic systems in King County are safe. 

All systems require a "Monitoring Report" to be filed by your certified Onsite System Maintainer with Public Health - Seattle & King County. Check the current law. The frequency of inspections depends on the type of your septic system. 

Check out if your maintenance was recorded at

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