To apply for a side sewer service a Service Connection Agreement must be signed and the process complete. To understand the process for a Service Connection Agreement visit the District’s Developer Extension Process. The Service Connection Agreement is for work needed to be complete in the right of way. This work includes tapping into the existing sewer main with sewer pipe and installing a cleanout in the right of way.
When the sewer connection has been installed from the sewer main and is approved you can come into the District office to complete a King County Residential Sewer Use Certificate, sign the side sewer permit, and pay the fees. You are not allowed to install the side sewer connection until you have a side sewer permit and have a preconstruction site meeting with the District Inspector and your contractor. Follow sewer standard plan no. 24 for Private Side Sewer Installation Requirements.
Fees
- Side Sewer permit fee for residential - $240.00
- Sewer System Development fee for one house - $3,343.00
Access Sewer Connection Policy.