King County, WA Wastewater Treatment Operator Pay
Based on 9 postings, Apr 2026–Aug 2026
King County, WA posted Wastewater Treatment Operator pay of $171,444–$217,308/yr in August 2026. Based on 9 postings by King County, Apr 2026–Aug 2026.
$171,444–$217,308/yr
No Wastewater Treatment Operator openings at King County, WA right now. Past postings and their pay are below.
Posted pay ranges
Each distinct range King County posted for Wastewater Treatment Operator roles, oldest first. Ranges differ by level, department and assignment.
Postings this is based on
Pay as published in the employer's own job postings. Past postings are shown for pay only; they are closed.
| Posted | Posting | Range |
|---|---|---|
| Aug 25, 2026 | Wastewater Treatment Operator - Brightwater | $171,444–$217,308/yr |
| Aug 1, 2026 | Wastewater Treatment Operator | $43–$52/hr |
| May 2, 2026 | Wastewater Treatment Operator - Senior Operator In Charge BW (SDA) | $63/hr |
| Apr 27, 2026 | Wastewater Treatment Operator - East Offsite | $41–$52/hr |
| Apr 15, 2026 | Wastewater Treatment Operator - Senior Operator in Charge SOIC Technical Trainer – WP (SDA) | $63/hr |
| Apr 11, 2026 | Wastewater Treatment Operator - Senior Operator in Charge | $63/hr |
| Apr 9, 2026 | Wastewater Treatment Operator - Senior Operator in Charge - A-Crew, South Treatment Plant | $63/hr |
| Apr 9, 2026 | Wastewater Treatment Operator - Senior Operator in Charge - D-Crew, South Treatment Plant | $63/hr |
| Apr 7, 2026 | Wastewater Treatment Operator - Senior Operator in Charge - B-Crew, South Treatment Plant | $63/hr |
King County, WA Wastewater Treatment Operator Pay: FAQ
How much does King County, WA pay a Wastewater Treatment Operator?
King County, WA's most recent Wastewater Treatment Operator posting (August 2026) listed $171,444–$217,308/yr.
What is the Wastewater Treatment Operator pay range at King County, WA?
Every Wastewater Treatment Operator posting from Apr 2026–Aug 2026 listed $171,444–$217,308/yr.