Oregon · Multnomah County
11 businesses hold a DEQ Sewage Disposal Service pumper licence and have published addresses that map to Multnomah County, checked September 6, 2026. 4 addresses have more than one possible county because the ZIP spans a county line.
OAR 340-071-0600 requires a DEQ Sewage Disposal Service licence to pump a septic tank in Oregon. DEQ issues Installer, Pumper and Installer/Pumper licences, and only the last two may pump — every business here holds one of those. 8 of these hold a Pumper licence and the rest hold an Installer/Pumper licence. Oregon publishes an expiry date for every licence, so each card shows one.
DEQ publishes a business address, not a county, and not a service area. The county on a card is where the business address sits, worked out from Census place and county data — an Oregon licence is valid statewide, so a business in the next county may well serve your address.
4 businesses on this page sit on a ZIP that spans a county line, so they appear on each possible county page; the cards say so.
These businesses are based around Fairview, Gresham, Lake Oswego, Portland, PORTLAND, Troutdale. DEQ publishes a licence number, business name, address, phone, email and — unusually — the licence expiry date, so you can check the licence is still current before you book rather than after.
Plumbing, excavation and portable-restroom firms hold this licence too. 0 of 11 here name septic; the rest are flagged so you can confirm household septic tank pumping first.