Post-Remediation Clearance Testing in Olalla, WA

Damp ground near Olalla Bay

Olalla is a small rural community on Olalla Bay off Colvos Passage, with a lagoon at the foot of Olalla Valley Road. Kitsap County's sea level rise risk assessment, a planning document, identifies Olalla's wetlands as at risk of coastal flooding. Wooded lots, wet soils and the long rainy season all slow drying under and inside homes. A remediation crew can clean every visible surface and still leave framing that reads wet for days, which is why the final check matters as much as the removal itself.

Your next steps

1. Do not let the crew strip containment yet. Clearance happens with the plastic still up.
2. Line up an independent assessor. Washington allows the remediation company to test its own work, but Angi recommends separate companies.
3. Find out what was removed. Ask for photos of the damage before and after, and the square footage involved.
4. Check that the water source is fixed. A roof leak, plumbing failure or drainage problem left alone will undo the cleanup.
5. Get moisture numbers. Ask the assessor to record readings on framing and subfloor, not just say it looks fine.
6. Schedule the rebuild after the result. Permits for unincorporated Kitsap County come from the county Department of Community Development.

Common clearance findings

Cost factors

Angi's 2026 national data lists a basic air test at $250 to $350 and a surface or swab test at $200 to $300, with full inspections running $303 to $1,044. Rural travel, crawl space access and the number of samples move the total up or down, as does any retest after a fail. Ask for a quote that lists every sample and whether the written report is included. Washington has no state mold license or certification, so ask about training and which lab the assessor uses. If you rent, Kitsap Public Health says landlords must repair building problems that let water in, so report leaks promptly and in writing.