GroundRosterLicensed Septic Contractors: Wasco County, OR
12 licensed septic contractors based in Wasco County. Every license number below is sourced from public licensing records, with a link to look it up yourself.
Grouped by the county of the address on each license record, which can be a mailing address, so it doesn't tell you where the business works. When the record names no county, we place it by ZIP code, then town.
Checked against Oregon DEQ - Sewage Disposal Service Licensed Businesses. Roster copy last refreshed 2026-08-17.
Towns in Wasco County
All 4 towns named on the license records based here, with the number of listings in each, most first.
License classes on the Wasco County records
Each class as the issuing agency prints it on the license record. A record that names more than one class counts once under each, so the rows can add up to more than 12.
| License class | Trade | Listings |
|---|---|---|
| Septic Installer | Septic | 10 |
| Septic Installer & Pumper | Septic | 1 |
| Septic Pumper | Septic | 1 |
Septic Contractors based in Wasco County (12)
Arod Enterprises, Inc
Cougar Excavation, LLC
Columbia River Affordable Portables, LLC
Genesis Septic Solutions, LLC
Shearer Worx LLC
General Excavation, LLC, dba General Excavation,LLC
Delco Excavation, LLC
Tom Olson Trucking, LLC, dba Olson Excavating
Gregrey C. O'Neal, dba Gregrey C. O'Neal Woodworking
Stan Cooper, dba Little Rock Construction
Danny T. and Mary Beth Richman, dba MBR Construction
Crestline Construction Company LLC
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Looking for a specific contractor? Search by name, business name, or license number.
Services in Wasco County, with national cost ranges
Listings based in Wasco County whose license class covers each service. Cost ranges are national; each links its cost guide.
| Service | Based in Wasco County | National cost |
|---|---|---|
| Septic Tank Pumping | 2 | $250 to $600 |
| Septic System Installation | 11 | $3,600 to $12,500 |
| Septic Inspection | 0 | $150 to $900 |
| Septic System Design | 0 | Varies by site |
| Perc Test and Soil Evaluation | 0 | $250 to $1,000 |
None of the listings based in Wasco County hold a license class we can match to septic inspection, septic system design or perc test and soil evaluation. Ask any contractor whether they do this work, or try a nearby city.
Hiring a septic contractor in Wasco County
Septic (onsite wastewater) contractors handle everything from routine septic tank pumping and cleaning to repairs, inspections, and new system installation. States license each role separately (a pumper is not necessarily licensed to install, and vice versa), so match the license class to the job.
Before you sign anything: confirm the license on this page is still active with the agency that issued it, ask for proof of insurance, and get at least three written quotes; pricing on this work varies widely by site conditions.
Do I need a permit for well or septic work in Oregon?