Property-Transfer Septic Inspection in Snohomish County, WA
Inspection for a property sale under Snohomish County's Nov 1, 2026 property-transfer rule — inspection within 12 months of closing, Report of Property Transfer filed with the county.
Snohomish County, WA
Lake Stevens
Lake Stevens has one of the oldest sewer districts in the county — the Lake Stevens Sewer District was set up in 1957, and the lake perimeter was sewered in the 1970s and 1980s. But the district only covers about 12.8 square miles, and outside its Urban Growth Area there is essentially no sewer. The homes beyond the lake and the UGA are on septic.
We serve the unsewered parts of the Lake Stevens area: outside the Urban Growth Area — north and east of the lake and the UGA, including the 132nd Ave NE area, the east side beyond the district around 99th Ave SE, and the SR-9 corridor north. We do not target the lake perimeter, Frontier Village, or the in-UGA subdivisions, which are on district sewer. As of April 2024 the district served 15,231 residential connections; outside the UGA, connections are rare — about 108 connections in plats in the rural area or the Marysville UGA.
Services
Septic Tank Pumping in Snohomish County, WA
Routine septic tank pumping to keep a septic system working — as a general guide, every 3–5 years depending on household size and tank size.
Septic Repair and Drainfield Repair in Snohomish County, WA
Septic repair and drainfield repair and replacement in Snohomish County — from minor component repairs to a full system replacement.
FAQ
Is my Lake Stevens home on septic or sewer?
Homes around the lake perimeter and inside the Lake Stevens Urban Growth Area are generally on Lake Stevens Sewer District sewer. Homes outside the UGA are generally on septic and cannot connect. The exact UGA boundary is in the city's comprehensive plan — do not guess it from the town name.
How often should a Lake Stevens septic tank be pumped?
As a general guide, every 3–5 years, depending on household size and tank size. Pumping in Snohomish County typically runs from $650. See our pumping page for the local pricing guidance.