Occupation · SOC 51-8031

Water and Wastewater Treatment Plant and System Operators: pay and where the jobs are

What water and wastewater treatment plant and system operators earn in the U.S., how pay varies across workers and states, and tools to plan around it.

BLS May 2025 data · methodology

National pay, May 2025

$60,020 median annual wage

Mean (average) annual wage
$62,540
Median hourly wage
$28.86
Mean hourly wage
$30.07
Employment
128,490

Source: U.S. Bureau of Labor Statistics, OEWS May 2025 (released 2026-05-15), SOC 51-8031.

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How much do water and wastewater treatment plant and system operators make?

The median annual wage for water and wastewater treatment plant and system operators was $60,020 in May 2025, so half of workers earned more and half earned less. The lowest-paid 10% earned less than $39,110 and the highest-paid 10% more than $91,060. As an hourly rate, the median is $28.86. About 128,490 people work in this occupation nationwide. The highest state medians are in California ($81,770), Nevada ($81,440) and Washington ($80,800). After taxes and local prices, though, a median paycheck goes furthest in Nevada.

Pay ladder

What each step of the pay range for water and wastewater treatment plant and system operators looks like per month. Take-home here includes federal tax, Social Security and Medicare for a single filer; add your state in the paycheck calculator.

Water and Wastewater Treatment Plant and System Operators: pay at each percentile
StepAnnualHourlyMonthly grossMonthly after federal tax & FICA
10th percentile$39,110$18.80$3,259$2,800
25th percentile$48,040$23.10$4,003$3,398
Median$60,020$28.86$5,002$4,201
75th percentile$74,780$35.95$6,232$5,120
90th percentile$91,060$43.78$7,588$6,074

Water and Wastewater Treatment Plant and System Operators: pay by state

52 states and territories have a published median, sorted from highest to lowest. The last two columns are our estimates: the median after 2026 federal and state taxes, and that take-home restated in national-average prices.

1

Nevada

$66,137 take-home in national prices

2

Washington

$60,322 take-home in national prices

3

Minnesota

$58,281 take-home in national prices

Where a median water and wastewater treatment plant and system operator paycheck goes furthest after 2026 taxes and BEA price levels.

Annual wages by state, May 2025, with after-tax and price-adjusted estimates
StateEmploymentMedian10th pct.90th pct.Median after tax*In national prices†
California11,630$81,770$56,030$123,380$61,933$55,936
NevadaNot published$81,440$56,110$101,820$66,123$66,137
Washington2,030$80,800$57,720$106,270$64,552$60,322
Connecticut980$78,820$60,900$98,850$60,301$58,200
New Jersey2,500$78,760$51,050$99,240$60,889$55,962
Minnesota2,290$74,670$52,130$87,250$57,478$58,281
Colorado2,620$74,200$50,130$95,730$58,147$56,425
Oregon1,240$69,720$50,270$87,880$52,765$51,050
Massachusetts2,510$68,550$50,980$91,390$53,532$50,618
Illinois3,500$67,810$42,240$103,690$53,323$53,345
Hawaii610$65,560$46,900$82,680$51,351$46,703
Delaware340$64,940$48,160$84,360$51,154$51,253
New York5,300$63,990$48,350$102,260$50,430$46,729
Vermont320$63,640$50,820$81,100$51,617$52,693
Wisconsin2,230$63,550$50,340$78,790$50,979$54,178
Pennsylvania4,660$63,310$45,670$80,480$51,062$52,332
Wyoming500$63,260$46,960$107,370$53,009$57,189
New Hampshire510$62,940$49,170$81,290$52,752$50,643
Maine710$61,870$49,220$84,730$49,085$50,577
Maryland1,770$61,870$44,990$88,970$49,320$46,990
Rhode Island420$61,820$49,150$84,640$49,471$48,368
Arizona3,950$61,340$46,690$80,040$50,327$49,989
Utah1,900$61,290$45,710$79,860$49,105$49,669
Nebraska740$61,220$44,620$76,250$49,464$54,898
Iowa2,370$60,990$46,880$76,040$49,520$56,425
North Dakota550$60,470$47,250$78,940$50,768$57,069
Alaska750$60,160$35,200$99,840$50,248$49,090
Virginia3,460$59,420$38,590$79,470$47,321$46,805
Michigan3,400$59,270$46,710$75,910$47,535$49,404
Ohio5,870$59,170$45,350$75,200$48,539$52,320
Florida7,440$59,030$39,630$84,280$49,611$47,973
Montana690$58,040$37,320$81,420$46,844$49,494
Indiana3,140$53,540$40,590$75,290$43,649$46,769
South Dakota1,060$53,370$43,890$73,170$45,063$50,869
Idaho1,480$52,210$40,820$74,950$42,472$44,476
South Carolina2,650$52,090$39,060$76,850$42,896$45,756
Alabama2,770$51,870$35,100$79,950$41,706$46,954
North Carolina3,620$51,680$37,860$75,600$42,152$44,687
Tennessee3,140$50,670$35,430$75,540$42,893$46,689
Missouri3,000$49,940$38,600$64,930$40,897$45,032
Texas10,520$49,460$36,550$70,270$41,921$43,192
Georgia3,310$48,930$36,970$67,520$39,802$41,334
New Mexico2,110$48,190$36,110$80,090$39,796$43,157
Virgin Islands30$48,030$36,500$72,840——
West Virginia1,100$47,560$35,360$75,240$39,053$43,636
Kansas1,560$46,780$35,870$66,800$37,957$42,143
Mississippi1,150$46,480$35,230$64,130$38,399$44,161
Louisiana2,450$46,210$31,440$63,870$38,310$43,432
Oklahoma2,280$45,890$35,250$63,040$37,533$42,727
Kentucky2,540$45,430$33,210$63,740$37,211$41,272
Arkansas2,010$44,320$31,480$61,780$36,639$42,144
Puerto Rico1,030$29,220$21,840$40,290——

Source: U.S. Bureau of Labor Statistics, OEWS May 2025 (released 2026-05-15), SOC 51-8031. *Our estimate for a single filer paid biweekly with no pre-tax deductions or local tax, 2026 federal and state rules. †Take-home ÷ BEA Regional Price Parity × 100 (2024 price levels).

Sources

  1. OEWS May 2025 (oesm25nat.zip) — U.S. Bureau of Labor Statistics. Accessed 2026-10-09.
  2. OEWS May 2025 (oesm25st.zip) — U.S. Bureau of Labor Statistics. Accessed 2026-10-09.