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Water and Wastewater Treatment Plant and System Operators Salary in Maryland
Last updated: 2025 BLS data · Page refreshed:
How much do Water and Wastewater Treatment Plant and System Operators make in Maryland?
Last updated: 2025 data from the Bureau of Labor Statistics
$61,870
Median Annual Salary
▲
+5.3% vs 2024
$64,570
Mean Salary
$61,870
Median Salary
$29.75
Hourly Rate
1,770 people work as Water and Wastewater Treatment Plant and System Operators in Maryland
Water and Wastewater Treatment Plant and System Operators salary by percentile in Maryland
BLS-reported salary distribution — from entry-level (10th percentile) to top earners (90th percentile).
Water and Wastewater Treatment Plant and System Operators in Maryland earn a median salary of $61,870 per year ($5,155/month).
This is 3.2% above the national average of $59,966.
Maryland ranks #19 out of 50 states for Water and Wastewater Treatment Plant and System Operators pay.
Approximately 1,770 people work in this occupation across Maryland.
Salaries increased by 5.3% 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 Maryland
Salaries for Water and Wastewater Treatment Plant and System Operators in Maryland range from $44,990 at the 10th percentile (entry level) to $88,970 at the 90th percentile (experienced). The middle 50% earn between $49,820 and $76,850.
Median $61,870
P10: $44,990P25: $49,820P75: $76,850P90: $88,970
10th
$44,990
25th
$49,820
Median
$61,870
75th
$76,850
90th
$88,970
Percentile
Annual Salary
Hourly Rate
Monthly
10th Percentile (Entry Level)
$44,990
$21.63
$3,749
25th Percentile
$49,820
$23.95
$4,151
Median (50th)
$61,870
$29.75
$5,155
75th Percentile
$76,850
$36.95
$6,404
90th Percentile (Experienced)
$88,970
$42.77
$7,414
Note: The mean (average) salary of $64,570 differs from the median because salary distributions are typically skewed by high earners.
📊 How Does This Compare?
#19
Maryland ranks #19 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 Maryland?
The median annual salary for Water and Wastewater Treatment Plant and System Operators in Maryland is $61,870 as of 2025. The average (mean) salary is $64,570.
What is the salary range for a Water and Wastewater Treatment Plant and System Operators in Maryland?
Salaries for Water and Wastewater Treatment Plant and System Operators in Maryland range from $44,990 at the 10th percentile to $88,970 at the 90th percentile. The middle 50% earn between $49,820 and $76,850.
What is the starting salary for a Water and Wastewater Treatment Plant and System Operators in Maryland?
Entry-level Water and Wastewater Treatment Plant and System Operators positions in Maryland typically start around $44,990 (10th percentile). With some experience, salaries rise to $49,820 (25th percentile).
How many people work as Water and Wastewater Treatment Plant and System Operators in Maryland?
According to 2025 BLS data, approximately 1,770 people are employed as Water and Wastewater Treatment Plant and System Operators in Maryland.
What is the hourly rate for a Water and Wastewater Treatment Plant and System Operators in Maryland?
Based on a standard 2,080-hour work year, the median hourly rate for a Water and Wastewater Treatment Plant and System Operators in Maryland is approximately $29.75 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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