How to Become a Water and Wastewater Treatment Plant and System Operator in 2026
Median salary: $58,260 · -6.5% projected decline (2024–2034)
What does a Water and Wastewater Treatment Plant and System Operator do?
Operate or control an entire process or system of machines, often through the use of control boards, to transfer or treat water or wastewater.
Water and Wastewater Treatment Plant and System Operator Salary in 2026
The median annual salary for Water and Wastewater Treatment Plant and System Operators is $58,260. The bottom 10% earn around $37,870 while the top 10% earn over $86,160.
| Experience level | Annual salary |
|---|---|
| Entry-level (P10) | $37,870 |
| Early career (P25) | $47,020 |
| Median | $58,260 |
| Experienced (P75) | $71,280 |
| Top earners (P90) | $86,160 |
Highest-paying metros
Water and Wastewater Treatment Plant and System Operator salary by state
| State | Median salary |
|---|---|
| Californiatop | $82,100 |
| Nevada | $79,140 |
| Washington | $78,810 |
| Alaska | $76,910 |
| New Jersey | $75,200 |
| Connecticut | $74,450 |
| Minnesota | $70,470 |
| Colorado | $68,220 |
| New Hampshire | $66,240 |
| Hawaii | $65,800 |
| Massachusetts | $65,620 |
| Oregon | $64,500 |
| Illinois | $63,790 |
| New York | $63,140 |
| Wisconsin | $62,360 |
| Vermont | $61,530 |
| Arizona | $61,480 |
| Maine | $60,960 |
| Wyoming | $60,580 |
| Delaware | $59,960 |
| Montana | $59,960 |
| Iowa | $59,400 |
| Pennsylvania | $59,170 |
| Utah | $59,120 |
| Virginia | $58,920 |
| Maryland | $58,740 |
| Ohio | $58,720 |
| Florida | $58,630 |
| Michigan | $58,470 |
| North Dakota | $58,250 |
| Nebraska | $57,640 |
| Rhode Island | $57,060 |
| Indiana | $55,170 |
| South Dakota | $54,090 |
| Idaho | $53,250 |
| Missouri | $52,990 |
| Tennessee | $50,760 |
| North Carolina | $49,710 |
| South Carolina | $49,480 |
| Georgia | $49,370 |
| Alabama | $48,730 |
| Texas | $48,110 |
| Kansas | $47,950 |
| Kentucky | $47,700 |
| New Mexico | $46,680 |
| Mississippi | $44,970 |
| West Virginia | $43,960 |
| Oklahoma | $41,380 |
| Louisiana | $38,690 |
| Arkansas | $38,310 |
How to earn more as a Water and Wastewater Treatment Plant and System Operator
The salary range for Water and Wastewater Treatment Plant and System Operators spans $48,290 — from $37,870 at entry level to $86,160 for top earners. The highest-paying metro area is San Francisco-Oakland-Fremont, CA at $123,390 — $65,130 above the national median. Union membership, additional certifications, and supervisory experience are the most reliable paths to higher earnings in this field.
How to get there
Typical education: High school diploma or equivalent
On-the-job training: Long-term on-the-job training
Starting from high school
- Complete on-the-job training (long-term on-the-job training)
- Earn industry-recognized certifications (OSHA 10/30-Hour, quality certifications (ASQ), machine-specific training)
- Complete OSHA 10-Hour or OSHA 30-Hour safety certification ($25–$200)
- Gain 1–2 years of supervised work experience
- Advance to journeyman level or specialized role
Manufacturing plants often hire with just a high school diploma and provide all training on-site. OSHA 10-Hour General Industry certification is widely required. Look for manufacturing apprenticeship programs through the Department of Labor. Community colleges offer manufacturing technology certificates that can accelerate your starting wage.
Many employers provide paid training. Union apprenticeships are typically paid from day one. Trade school programs may require tuition.
Switching from another career
- Assess which of your existing skills transfer (many do — see below)
- Complete a short certification or orientation program (OSHA 10/30-Hour, quality certifications (ASQ), machine-specific training)
- Apply for entry-level or apprentice positions — highlight transferable skills
- Complete any required on-the-job training (often shortened for experienced workers)
- Advance faster than new entrants using your professional experience
Manufacturing values reliability, attention to detail, and the ability to follow procedures — skills transferable from nearly any career. Many plants provide full training and will hire career changers with a high school diploma. If you have experience with machinery, tools, quality processes, or inventory management from any field, you're a strong candidate. Contact local manufacturers directly — job boards often don't reflect the actual openings.
Certification costs are typically self-funded, but some employers reimburse. Union programs are paid positions.
Already working in another career?
See how your skills transfer to Water and Wastewater Treatment Plant and System Operator — free. PathScorer maps your experience against the requirements and shows you what you already qualify for.
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The Water and Wastewater Treatment Plant and System Operator role faces above-average AI exposure. Some tasks are increasingly automatable, but the role is evolving rather than disappearing.
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Based on skill overlap analysis — these occupations share core competencies with Water and Wastewater Treatment Plant and System Operator.
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SOC: 51-8031.00 · Data: O*NET 29.1, BLS OEWS 2024, BLS Employment Projections 2024–2034