Burien Septic Regulations and Health Department Requirements
Public Health – Seattle & King County regulates every on-site sewage system in Burien, under King County Board of Health Code Title 13. This isn't a Burien-specific rulebook layered on top of the county's — Burien's own municipal code (BMC 13.05.020) adopts the county's sewage regulations wholesale, without a separate city version, and BMC 13.05.030 reserves space for local amendments that the city has not actually used. In practice, a Burien property is regulated exactly like a septic property anywhere else in unincorporated or incorporated King County.
Connecting to sewer. Because Burien sits inside King County's Urban Growth Area, the county's rule under BOH 13.04.050(B) applies directly: a property within 200 feet of an available sewer main is generally required to connect rather than continue relying on a septic system. Burien's own code adds nothing stricter or looser — there's no separate city connection-distance ordinance to reconcile against the county's. The complication in Burien isn't conflicting rules, it's confirming which of the three districts controls the main near your property and what their own connection process and fees look like, since that's a district-level decision rather than a city one.
Inspections and pumping. King County's code sets the inspection schedule by system type: a conventional gravity system without a pump is inspected every three years, while pressure distribution systems, mounds, sand filters, and proprietary units like aerobic treatment units require an annual inspection (six months applies only to the initial inspection after a new system is installed). There's no fixed countywide pumping interval — that depends on tank size and household water use, which a routine inspection will tell you.
Selling a home. A Burien property changing hands needs a property transfer inspection by a licensed on-site system maintainer, filed with Public Health, unless a report already on file is less than twelve months old.
Repairs, permits, and installations. Repairing or replacing an on-site system in Burien requires a Public Health permit, and design work has to meet the state's on-site sewage regulations under WAC 246-272A, which the county applies when it reviews a system. Because Burien's own code doesn't modify any of this, the process is identical to what applies countywide.
One code, three points of contact. The unusual part of doing septic work in Burien isn't the health code — it's that a repair or replacement near a sewer main means coordinating with whichever special district serves that address, not the city. Upfront Septic handles that coordination as part of the job: we pump, inspect, and give you a straight read on your system's condition, and we flag early if a project is going to need a Public Health permit or a district connection check before you commit to a repair.