Applications & Fees
To request a septic system construction final inspection, please call the Septic Inspection line at (360) 740-1330.
The On-site Sewage Program is responsible for evaluating site conditions for onsite septic systems, characteristics of soil in test pits, setting permitting conditions, and issuing permits for septic systems. On-site Program staff review and comment on land development projects and activities such as Subdivisions, Special Use Permits, Boundary Line Adjustments, SEPA documents, and other planning processes proposing on-site wastewater treatment and disposal.
To learn more about how a Septic System works, please see Land Use Fact Sheet #2