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The average salary for a Wastewater Treatment Supervisor in the United States is approximately $50,911 per year, or about $24 per hour. This figure can fluctuate based on various factors such as state, experience level, and the specific industry of employment.
Entry-level supervisors typically earn less, while those with extensive experience can command higher wages. For instance, supervisors with over ten years of experience may see salaries exceeding $60,000.
States such as California and Texas often offer more lucrative salaries due to higher demand for skilled professionals in wastewater management. Cities like San Francisco and Los Angeles are among the highest paying locations for this role, with salaries reflecting local living costs and job market conditions.
As a Wastewater Treatment Supervisor, you will oversee treatment processes, ensuring compliance with environmental regulations and maintaining operational efficiency. Job listings for this position can be found on major job boards, providing a pathway to a fulfilling career.
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| Experience level | Avg. salary | Hourly rate |
|---|---|---|
| Entry-level wastewater treatment supervisor | $50,200 | $24.13 |
| Mid-level wastewater treatment supervisor | $63,500 | $30.52 |
| Senior-level wastewater treatment supervisor | $64,300 | $30.93 |
The average wastewater treatment supervisor salary in Wyoming, Massachusetts, and California are the highest in the U.S. The lowest average wastewater treatment supervisor salary states are Georgia, Alabama, and Arkansas.
| Rank | State | Avg. salary | Hourly rate |
|---|---|---|---|
| 1 | Massachusetts | $63,446 | $30.50 |
| 2 | New Hampshire | $58,379 | $28.07 |
| 3 | Maine | $55,733 | $26.79 |
| 4 | Connecticut | $59,969 | $28.83 |
| 5 | Rhode Island | $61,433 | $29.54 |
| 6 | Wisconsin | $52,803 | $25.39 |
| 7 | Wyoming | $68,634 | $33.00 |
| 8 | Minnesota | $54,825 | $26.36 |
| 9 | Indiana | $51,400 | $24.71 |
| 10 | California | $61,453 | $29.54 |
| 11 | Nevada | $52,763 | $25.37 |
| 12 | Ohio | $50,757 | $24.40 |
| 13 | North Dakota | $53,271 | $25.61 |
| 14 | Colorado | $58,344 | $28.05 |
| 15 | New Jersey | $58,974 | $28.35 |
| 16 | Iowa | $50,370 | $24.22 |
| 17 | Michigan | $50,569 | $24.31 |
| 18 | South Dakota | $54,105 | $26.01 |
| 19 | Vermont | $55,735 | $26.80 |
| 20 | Alaska | $58,331 | $28.04 |
| 21 | District of Columbia | $65,029 | $31.26 |
| 22 | Washington | $53,757 | $25.84 |
| 23 | Delaware | $54,950 | $26.42 |
| 24 | Pennsylvania | $49,673 | $23.88 |
| 25 | Maryland | $55,804 | $26.83 |
| 26 | New York | $55,883 | $26.87 |
| 27 | Nebraska | $49,561 | $23.83 |
| 28 | Oregon | $53,133 | $25.54 |
| 29 | Illinois | $50,794 | $24.42 |
| 30 | Kentucky | $45,663 | $21.95 |
| 31 | Texas | $49,993 | $24.04 |
| 32 | Utah | $50,684 | $24.37 |
| 33 | West Virginia | $48,620 | $23.38 |
| 34 | Arizona | $47,269 | $22.73 |
| 35 | Tennessee | $44,769 | $21.52 |
| 36 | Missouri | $46,757 | $22.48 |
| 37 | Montana | $49,673 | $23.88 |
| 38 | North Carolina | $44,695 | $21.49 |
| 39 | Idaho | $48,495 | $23.31 |
| 40 | Kansas | $45,805 | $22.02 |
| 41 | Hawaii | $45,318 | $21.79 |
| 42 | Louisiana | $46,578 | $22.39 |
| 43 | Georgia | $42,684 | $20.52 |
| 44 | South Carolina | $42,015 | $20.20 |
| 45 | Virginia | $44,502 | $21.40 |
| 46 | Mississippi | $39,728 | $19.10 |
| 47 | Alabama | $42,572 | $20.47 |
| 48 | Oklahoma | $43,655 | $20.99 |
| 49 | New Mexico | $43,873 | $21.09 |
| 50 | Arkansas | $42,016 | $20.20 |
| 51 | Florida | $36,747 | $17.67 |
The highest-paying cities for wastewater treatment supervisors are Pueblo, CO, New York, NY, and Minneapolis, MN.
| Rank | City | Avg. salary | Hourly rate |
|---|---|---|---|
| 1 | Pueblo, CO | $57,749 | $27.76 |
| 2 | New York, NY | $56,040 | $26.94 |
| 3 | Minneapolis, MN | $54,868 | $26.38 |
| 4 | Renton, WA | $53,931 | $25.93 |
| 5 | Chicago, IL | $51,118 | $24.58 |
| 6 | Columbus, OH | $50,352 | $24.21 |
| 7 | Arlington, TX | $49,907 | $23.99 |
| 8 | Reading, PA | $49,851 | $23.97 |
| 9 | Kalamazoo, MI | $49,562 | $23.83 |
| 10 | Alexandria, VA | $46,128 | $22.18 |
A wastewater treatment supervisor's salary ranges from $34,000 a year at the 10th percentile to $75,000 at the 90th percentile.

| Percentile | Annual salary | Monthly salary | Hourly rate |
|---|---|---|---|
| 90th Percentile | $75,000 | $6,250 | $36 |
| 75th Percentile | $62,000 | $5,167 | $30 |
| Average | $50,911 | $4,243 | $24 |
| 25th Percentile | $41,000 | $3,417 | $20 |
| 10th Percentile | $34,000 | $2,833 | $16 |
The highest paying types of wastewater treatment supervisors are control supervisor, materials supervisor, and section supervisor.
| Job title | Annual salary | Monthly salary | Hourly rate | Job openings |
|---|---|---|---|---|
| Shop Supervisor | $50,689 | $4,224 | $24.37 | 35,924 |
| Supervisor | $53,902 | $4,492 | $25.91 | 224,920 |
| Processing Supervisor | $53,013 | $4,418 | $25.49 | 68,640 |
| Production Supervisor | $63,391 | $5,283 | $30.48 | 83,529 |
| 2nd Shift Supervisor | $34,465 | $2,872 | $16.57 | 145,604 |
| Night Supervisor | $35,289 | $2,941 | $16.97 | 62,170 |
Top companies hiring wastewater treatment supervisors now:
Wastewater treatment supervisor salaries at King County and City Of Alexandria are the highest-paying according to our most recent salary estimates. In addition, the average wastewater treatment supervisor salary at companies like NTUA and Pennsylvania State Treasurer are highly competitive.
| Rank | Company | Average salary | Hourly rate |
|---|---|---|---|
| 1 | King County | $65,156 | $31.32 |
| 2 | City Of Alexandria | $63,794 | $30.67 |
| 3 | NTUA | $55,667 | $26.76 |
| 4 | Pennsylvania State Treasurer | $50,311 | $24.19 |
| 5 | Tyson Foods | $49,972 | $24.02 |
| 6 | Apis | $48,542 | $23.34 |
| 7 | The GEO Group | $47,585 | $22.88 |
| 8 | Samaritas | $46,682 | $22.44 |
| 9 | Darling Ingredients | $46,338 | $22.28 |
| 10 | American Addiction Centers | $45,735 | $21.99 |
| 11 | Metro Nashville | $45,191 | $21.73 |
| 12 | Nationwide Children's Hospital | $45,143 | $21.70 |
| 13 | JBS USA | $44,077 | $21.19 |
| 14 | Commonwealth Of Pennsylvania | $43,534 | $20.93 |
| 15 | Pilgrim's | $40,888 | $19.66 |
| 16 | Graham Windham | $40,264 | $19.36 |
| 17 | Supportive Concepts for Families | $39,859 | $19.16 |
| 18 | Abraxas Youth & Family Services | $39,184 | $18.84 |
The average wastewater treatment supervisor salary varies across industries:
| Rank | Industry | Average salary | Hourly rate |
|---|---|---|---|
| 1 | Manufacturing | $59,257 | $28.49 |
| 2 | Professional | $51,352 | $24.69 |
| 3 | Health Care | $48,241 | $23.19 |
| 4 | Utilities | $45,190 | $21.73 |
| 5 | Government | $43,347 | $20.84 |
The average wastewater treatment supervisor salary has risen by $7,436 over the last ten years. In 2014, the average wastewater treatment supervisor earned $43,475 annually, but today, they earn $50,911 a year. That works out to a 9% change in pay for wastewater treatment supervisors over the last decade.
Compare wastewater treatment supervisor salaries for cities or states with the national average over time.
Compare wastewater treatment supervisor salaries for individual cities or states with the national average.
| Year | Avg. salary | Hourly rate | % Change |
|---|---|---|---|
| 2025 | $50,900 | $24.48 | +2.5% |
| 2024 | $49,700 | $23.88 | +1.5% |
| 2023 | $48,900 | $23.53 | +2.6% |
| 2022 | $47,700 | $22.93 | +1.9% |
| 2021 | $46,800 | $22.50 | +2.5% |
| Company | Job | Location | Date added | Salary |
|---|---|---|---|---|
| Frontier Behavioral Health | Supervisor-Mobile Community Assertive Treatment (Mcat)-SAT & SUN 9PM AM | Spokane, WA | 06/28/2025 | $76,322 |
| City of Astoria | Wastewater Supervisor | Astoria, OR | 06/20/2025 | $69,393 |
| City of Westbrook, Me | Wastewater Supervisor | Westbrook, ME | 05/31/2025 | $61,587 |
| 360 Talent Avenue | Senior Wastewater Treatment Supervisor | Lafayette, IN | 05/26/2025 | $100,000 |
| Coastal Horizons Center | Family Centered Treatment Supervisor-Hybrid-Guilford County | Greensboro, NC | 05/15/2025 | $65,000 |
| Perricone Farms | Wastewater Supervisor | Beaumont, CA | 05/12/2025 | $70,000 |
| State of Pennsylvania | Juvenile Justice Specialist Supervisor-South Mountain Secure Treatment Unit-Franklin County | Mountainhome, PA | 04/24/2025 | $60,506 |
| Clackamas County, or | Septic/Onsite Wastewater Supervisor | Oregon City, OR | 04/10/2025 | $93,210 |
| City of La Crosse, Wi | Wastewater Seasonal Laborer | La Crosse, WI | 03/19/2025 | $41,740 |
| Handex Consulting & Remediation | Wastewater Supervisor | Chester, NJ | 02/04/2025 | $62,610 |
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