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Washington sewer inspection and cleaning worker prevailing wage, county by county
A sewer inspection and cleaning worker's prevailing wage on Washington public works runs from $17.13 an hour in Whitman County to $58.16 in Lewis County, wages and fringe benefits together. The median county is $49.90.
Sewer & Water System Inspection/Cleaning rate in each Washington county, A to Z
| County | Base wage | Fringe benefits | Total rate | Effective | Source |
|---|---|---|---|---|---|
Adams CountyInspection: Technician · Spokane County group | $8.55 | $8.58 | $17.13 | Mar 3, 2010 | LNI-130590 |
Asotin CountyInspection: Technician · Spokane County group | $8.55 | $8.58 | $17.13 | Mar 3, 2010 | LNI-130595 |
Benton CountyTechnician · Benton County group | $8.55 | $8.58 | $17.13 | Sep 1, 2010 | LNI-134684 |
Chelan CountyTechnician · King County group | $34.30 | $15.60 | $49.90 | Sep 2, 2026 | LNI-149899 |
Clallam CountyTechnician · King County group | $34.30 | $15.60 | $49.90 | Sep 2, 2026 | LNI-149899 |
Clark CountyTechnician | $17.39 | $0.00 | $17.39 | Sep 1, 2010 | LNI-134687 |
Columbia CountyInspection: Technician · Spokane County group | $8.55 | $8.58 | $17.13 | Mar 3, 2010 | LNI-130620 |
Cowlitz CountyTechnician · Benton County group | $8.55 | $8.58 | $17.13 | Sep 1, 2010 | LNI-134689 |
Douglas CountyTechnician · King County group | $34.30 | $15.60 | $49.90 | Sep 2, 2026 | LNI-149899 |
Ferry CountyInspection: Technician · Spokane County group | $8.55 | $8.58 | $17.13 | Mar 3, 2010 | LNI-130635 |
Franklin CountyTechnician · Benton County group | $8.55 | $8.58 | $17.13 | Sep 1, 2010 | LNI-134692 |
Garfield CountyInspection: Technician · Spokane County group | $8.55 | $8.58 | $17.13 | Mar 3, 2010 | LNI-130645 |
Grant CountyTechnician · Benton County group | $8.55 | $8.58 | $17.13 | Sep 1, 2010 | LNI-134694 |
Grays Harbor CountyTechnician · King County group | $34.30 | $15.60 | $49.90 | Sep 2, 2026 | LNI-149899 |
Island CountyTechnician · King County group | $34.30 | $15.60 | $49.90 | Sep 2, 2026 | LNI-149899 |
Jefferson CountyTechnician · King County group | $34.30 | $15.60 | $49.90 | Sep 2, 2026 | LNI-149899 |
King CountyTechnician · King County group | $34.30 | $15.60 | $49.90 | Sep 2, 2026 | LNI-149899 |
Kitsap CountyTechnician · King County group | $34.30 | $15.60 | $49.90 | Sep 2, 2026 | LNI-149899 |
Kittitas CountyTechnician · King County group | $34.30 | $15.60 | $49.90 | Sep 2, 2026 | LNI-149899 |
Klickitat CountyTechnician · Benton County group | $8.55 | $8.58 | $17.13 | Sep 1, 2010 | LNI-134700 |
Lewis CountyInspection: Grout Truck Operator · Pierce County group | $42.30 | $15.86 | $58.16 | Sep 2, 2026 | LNI-149933 |
Lincoln CountyInspection: Technician · Spokane County group | $8.55 | $8.58 | $17.13 | Mar 3, 2010 | LNI-130695 |
Mason CountyTechnician · King County group | $34.30 | $15.60 | $49.90 | Sep 2, 2026 | LNI-149899 |
Okanogan CountyTechnician · King County group | $34.30 | $15.60 | $49.90 | Sep 2, 2026 | LNI-149899 |
Pacific CountyInspection: Grout Truck Operator · Pierce County group | $42.30 | $15.86 | $58.16 | Sep 2, 2026 | LNI-149933 |
Pend Oreille CountyInspection: Technician · Spokane County group | $8.55 | $8.58 | $17.13 | Mar 3, 2010 | LNI-130714 |
Pierce CountyInspection: Grout Truck Operator · Pierce County group | $42.30 | $15.86 | $58.16 | Sep 2, 2026 | LNI-149933 |
San Juan CountyTechnician · King County group | $34.30 | $15.60 | $49.90 | Sep 2, 2026 | LNI-149899 |
Skagit CountyTechnician · King County group | $34.30 | $15.60 | $49.90 | Sep 2, 2026 | LNI-149899 |
Skamania CountyInspection: Technician · Spokane County group | $8.55 | $8.58 | $17.13 | Mar 3, 2010 | LNI-130734 |
Snohomish CountyTechnician · King County group | $34.30 | $15.60 | $49.90 | Sep 2, 2026 | LNI-149899 |
Spokane CountyInspection: Technician · Spokane County group | $8.55 | $8.58 | $17.13 | Mar 3, 2010 | LNI-130744 |
Stevens CountyInspection: Technician · Spokane County group | $8.55 | $8.58 | $17.13 | Mar 3, 2010 | LNI-130749 |
Thurston CountyInspection: Grout Truck Operator · Pierce County group | $42.30 | $15.86 | $58.16 | Sep 2, 2026 | LNI-149933 |
Wahkiakum CountyTechnician · Benton County group | $8.55 | $8.58 | $17.13 | Sep 1, 2010 | LNI-134923 |
Walla Walla CountyInspection: Technician · Spokane County group | $8.55 | $8.58 | $17.13 | Mar 3, 2010 | LNI-130764 |
Whatcom CountyTechnician · King County group | $34.30 | $15.60 | $49.90 | Sep 2, 2026 | LNI-149899 |
Whitman CountyInspection: Technician · Spokane County group | $8.55 | $8.58 | $17.13 | Mar 3, 2010 | LNI-130774 |
Yakima CountyTechnician · King County group | $34.30 | $15.60 | $49.90 | Sep 2, 2026 | LNI-149899 |
Main sewer inspection and cleaning worker classification in each county, L&I period 2026-2, commercial rates. You pay the rate for the county where the work is done. Checked October 24, 2026.
How much does a sewer inspection and cleaning worker make on prevailing wage in Washington?
$17.13 to $58.16 an hour, base wage plus fringe benefits, depending on the county; the median county pays $49.90. 4 groups of counties with identical rates and 1 county with rates of their own, highest main rate first, each split into base wage and fringe benefits on one scale.
- Pierce County group4 counties · Inspection: Grout Truck Operator$58.16
- King County group16 counties · Technician$49.90
- Clark County1 county · Technician$17.39
- Spokane County group12 counties · Inspection: Technician$17.13
- Benton County group6 counties · Technician$17.13
Which counties share a rate
| Counties | Main classification | Base wage | Total rate |
|---|---|---|---|
| Pierce County group, 4 counties: Lewis, Pacific, Pierce, Thurston | Inspection: Grout Truck Operator | $42.30 | $58.16 |
| King County group, 16 counties: Chelan, Clallam, Douglas, Grays Harbor, Island, Jefferson, King, Kitsap, Kittitas, Mason, Okanogan, San Juan, Skagit, Snohomish, Whatcom, Yakima | Technician | $34.30 | $49.90 |
| Clark County | Technician | $17.39 | $17.39 |
| Spokane County group, 12 counties: Adams, Asotin, Columbia, Ferry, Garfield, Lincoln, Pend Oreille, Skamania, Spokane, Stevens, Walla Walla, Whitman | Inspection: Technician | $8.55 | $17.13 |
| Benton County group, 6 counties: Benton, Cowlitz, Franklin, Grant, Klickitat, Wahkiakum | Technician | $8.55 | $17.13 |
4 groups of counties with identical L&I rates, and 1 county with rates of its own.
These are journey-level rates. Registered apprentices are paid L&I's apprentice rate for the trade (RCW 39.12.021), which L&I publishes in its wage lookup.
Questions about Washington sewer inspection and cleaning worker pay
What is the sewer inspection and cleaning worker prevailing wage in King County?
$49.90 an hour: a $34.30 base wage plus $15.60 in fringe benefits, under L&I period 2026-2. Overtime and every sewer inspection and cleaning worker classification in King County.
Does sewer inspection and cleaning worker prevailing wage include fringe benefits?
Yes. In King County the $49.90 total is a $34.30 base wage plus $15.60 in fringe benefits, about 31% of the total. The employer owes the full amount for every hour worked.
Do apprentice sewer inspection and cleaning workers get this rate?
Registered apprentices get L&I's apprentice rate for the trade (RCW 39.12.021), which L&I publishes in its wage lookup. Anyone else on the job is paid as a journey-level worker.
Why do some counties have the same sewer inspection and cleaning worker rate?
L&I often publishes the same sewer inspection and cleaning worker rates for several counties. Across Washington, the 39 counties with a sewer inspection and cleaning worker rate fall into 5 distinct sets of rates, and 4 of those sets are shared by more than one county; the largest covers 16 counties (the King County group).
Which county pays sewer inspection and cleaning workers the most in Washington?
Lewis County, at $58.16 an hour for the main classification. The lowest is Whitman County at $17.13, and the median county is $49.90.