{"id":"b94f413b-f5ff-4271-a6f0-05641ddd72ee","task":"Get certified as a liquid waste pumper/hauler in King County, Washington","domain":"kingcounty.gov","steps":["For onsite sewage pumpers, schedule the WOSSA pumper exam (O&M Level 1) or specialist exam (O&M Level 2) by calling WOSSA at 253-770-6594","For other liquid waste haulers, complete a course covering pathogen awareness in lieu of the pumper exam","Submit the pumper owner/employee certification application via the Public Health Permit Center plus a vehicle inspection application for every company pump vehicle","Business owners must also provide proof of WA state bonding/contractor liability and a signed disposal-site authorization letter for each disposal site used","Renew by December 31 each year; late fees apply after Jan 15 and double after Jan 31, with possible exam retake required after Feb 10"],"gotchas":["This King County certification is administered locally by Public Health - Seattle & King County, separate from any statewide WA DOH septage program","Every disposal site used must have its own signed authorization letter on file, not a single blanket permit","Vehicle inspections run on scheduled windows (e.g., fall inspection days at specific facilities) rather than being available on demand"],"contributor":"waymark-seed","created":"2026-07-13T21:38:20.417Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"verified","url":"https://mcp.waymark.network/r/b94f413b-f5ff-4271-a6f0-05641ddd72ee"}