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Water and Wastewater Treatment Plant and System Operators Salary in Delaware
Last updated: 2025 BLS data · Page refreshed:
How much do Water and Wastewater Treatment Plant and System Operators make in Delaware?
Last updated: 2025 data from the Bureau of Labor Statistics
$64,940
Median Annual Salary
▲
+8.3% vs 2024
$66,310
Mean Salary
$64,940
Median Salary
$31.22
Hourly Rate
340 people work as Water and Wastewater Treatment Plant and System Operators in Delaware
Water and Wastewater Treatment Plant and System Operators salary by percentile in Delaware
BLS-reported salary distribution — from entry-level (10th percentile) to top earners (90th percentile).
Water and Wastewater Treatment Plant and System Operators in Delaware earn a median salary of $64,940 per year ($5,411/month).
This is 8.3% above the national average of $59,966.
Delaware ranks #12 out of 50 states for Water and Wastewater Treatment Plant and System Operators pay.
Approximately 340 people work in this occupation across Delaware.
Salaries increased by 8.3% compared to 2024.
About This Job: Water and Wastewater Treatment Plant and System Operators
Operate or control an entire process or system of machines, often through the use of control boards, to transfer or treat water or wastewater.
Top Skills
Operations Monitoring
3.88
Operation and Control
3.75
Monitoring
3.62
Active Listening
3.38
Quality Control Analysis
3.38
Key Knowledge Areas
Chemistry
3.98
Biology
3.9
Mechanical
3.89
Mathematics
3.62
Public Safety and Security
3.48
Typical Education: High School Diploma or Equivalent
(41.8% of workers)
Salary Range: Water and Wastewater Treatment Plant and System Operators in Delaware
Salaries for Water and Wastewater Treatment Plant and System Operators in Delaware range from $48,160 at the 10th percentile (entry level) to $84,360 at the 90th percentile (experienced). The middle 50% earn between $54,960 and $76,240.
Median $64,940
P10: $48,160P25: $54,960P75: $76,240P90: $84,360
10th
$48,160
25th
$54,960
Median
$64,940
75th
$76,240
90th
$84,360
Percentile
Annual Salary
Hourly Rate
Monthly
10th Percentile (Entry Level)
$48,160
$23.15
$4,013
25th Percentile
$54,960
$26.42
$4,580
Median (50th)
$64,940
$31.22
$5,411
75th Percentile
$76,240
$36.65
$6,353
90th Percentile (Experienced)
$84,360
$40.56
$7,030
Note: The mean (average) salary of $66,310 differs from the median because salary distributions are typically skewed by high earners.
📊 How Does This Compare?
#12
Delaware ranks #12 of 50 states
$59,966
National avg. for Water and Wastewater Treatment Plant and System Operators
How much do Water and Wastewater Treatment Plant and System Operators make in Delaware?
The median annual salary for Water and Wastewater Treatment Plant and System Operators in Delaware is $64,940 as of 2025. The average (mean) salary is $66,310.
What is the salary range for a Water and Wastewater Treatment Plant and System Operators in Delaware?
Salaries for Water and Wastewater Treatment Plant and System Operators in Delaware range from $48,160 at the 10th percentile to $84,360 at the 90th percentile. The middle 50% earn between $54,960 and $76,240.
What is the starting salary for a Water and Wastewater Treatment Plant and System Operators in Delaware?
Entry-level Water and Wastewater Treatment Plant and System Operators positions in Delaware typically start around $48,160 (10th percentile). With some experience, salaries rise to $54,960 (25th percentile).
How many people work as Water and Wastewater Treatment Plant and System Operators in Delaware?
According to 2025 BLS data, approximately 340 people are employed as Water and Wastewater Treatment Plant and System Operators in Delaware.
What is the hourly rate for a Water and Wastewater Treatment Plant and System Operators in Delaware?
Based on a standard 2,080-hour work year, the median hourly rate for a Water and Wastewater Treatment Plant and System Operators in Delaware is approximately $31.22 per hour.
Salary data is sourced from the U.S. Bureau of Labor Statistics (BLS) Occupational Employment and Wage Statistics (OEWS) survey, 2025 estimates. The OEWS survey covers approximately 1.1 million establishments nationwide.
Annual salaries are calculated based on a standard 2,080-hour work year. Actual compensation may vary based on experience, education, employer, and local market conditions. Figures do not include benefits, bonuses, or overtime pay.
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