King County has dramatically scaled back a proposal that would have required septic inspections on roughly 1,300 waterfront parcels on Vashon Island, narrowing the plan to about 75 properties clustered along isolated shoreline stretches. County officials say the smaller zone can still satisfy the minimum requirements of state law while sparing hundreds of homeowners from new inspection mandates.
The revised proposal would add those 75 properties to an existing Marine Recovery Area that already covers about 250 properties on the island, according to the Vashon-Maury Island Beachcomber. The newly targeted stretches run along inner Quartermaster Harbor, Burton, Dockton and Neill Point, areas the state has identified as having degraded shellfish habitat or harmfully low oxygen levels. Under a Marine Recovery Area designation, properties face regular septic inspections and required system improvements whenever problems turn up.
A Different Approach After Months of Pushback
Meagan Jackson, supervisor of the on-site sewage system operation and maintenance program for Public Health — Seattle & King County, told residents at a meeting that the county is completely shifting its approach. Jackson said the county determined it could meet the minimum requirements of the state law while requiring fewer properties to be inspected, a finding that drove the shrunken footprint of the new proposal.
That meeting, held at the Open Space for Arts Community on Vashon on November 7, drew about 50 attendees, where the county displayed a map of the newly delineated 75-property area. It was one of several recent sessions; the station’s report notes Vashon meetings have attracted more than 200 attendees over the preceding several months, and an online survey the county ran separately received 80 responses.
Why State Law Is Pushing the Issue
The push stems from a state law that mandates routine septic inspections, which King County is working to satisfy through both the Vashon-specific zone and a broader countywide septic maintenance plan it intends to develop with technical experts and community members. That countywide plan, which focuses on high-risk areas and public health protection, treats the Vashon Marine Recovery Area as one subset of a larger effort. Meeting materials from the county’s technical advisory committee cite Board of Health Code Title 13, section 13.60.010(F), which requires septic systems within a Marine Recovery Area to be inspected at least annually…