How Much Do Water and Wastewater Treatment Plant and System Operators Make in Delaware?
Median wage from BLS May 2025 — and the after-tax number the salary sites skip. Tax year 2026.
Quick answer
According to payandtaxes.com's analysis of BLS May 2025 data and 2026 tax law, the median Water and Wastewater Treatment Plant and System Operators in Delaware earns $64,940 per year and takes home $51,414 ($4,285/month) — a keep-rate of 79.2%, with 340 employed in the state.
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| Gross pay | $5,411.67 |
| Federal income tax | $467.73 |
| Social Security | $335.52 |
| Medicare | $78.47 |
| Delaware state income tax | $245.42 |
| You keep | $4,284.52 |
How much do Water and Wastewater Treatment Plant and System Operators make in Delaware?
The median Water and Wastewater Treatment Plant and System Operators in Delaware earns $64,940 per year (BLS May 2025), about $31.22 per hour.
What is that after taxes?
$64,940 gross in Delaware keeps $51,414 after federal income tax ($5,613), FICA ($4,968) and state income tax ($2,945) — $4,285 per month, a 79.2% keep-rate.
How does Delaware compare to the national median for Water and Wastewater Treatment Plant and System Operators?
The Delaware median is $4,920 above the national median of $60,020.
Which state pays Water and Wastewater Treatment Plant and System Operators the most?
California has the highest median gross for Water and Wastewater Treatment Plant and System Operators at $81,770 — but compare take-home, not gross: state taxes change the order.
Water and Wastewater Treatment Plant and System Operators salary in every state · Delaware paycheck calculator · Delaware minimum wage