Career comparison
Hazardous Materials Technician vs. Water Treatment Plant Operator
Side-by-side pay, training, growth and day-to-day duties to help you choose between two related careers.
Water treatment plant operators earn more at the median ($60,020 vs. $49,450), while hazardous materials technicians usually get to work faster (1–4 weeks of required training of training). Hazardous materials technicians safely remove and clean up asbestos, lead, chemicals and other hazardous materials. Water treatment plant operators run the plants and systems that clean drinking water and treat wastewater.
Pay data: BLS OEWS, May 2025 · Outlook: BLS 2025–35 · Checked October 15, 2026
| Hazardous Materials Technician | Water Treatment Plant Operator | |
|---|---|---|
| Median pay | $49,450 ($23.78/hr) | $60,020 ($28.86/hr) |
| Pay range (10th–90th) | $38,460 – $82,410 | $39,110 – $91,060 |
| Job growth, 2025–35 | +1.5% (slower than average) | -5.7% (a projected decline) |
| Openings per year | 4,300 | 10,000 |
| Typical entry education | High school diploma or equivalent | High school diploma or equivalent |
| Training time | 1–4 weeks of required training | Months to years (on the job + certification) |
| Key credential | OSHA HAZWOPER 40-hour | State water treatment operator certification |
| Work setting | Hazmat technicians work at demolition and renovation sites, industrial facilities, contaminated land and emergency scenes. | Operators work at water and wastewater plants, lift stations and distribution systems, both indoors and outdoors. |
What each job does
Hazardous Materials Technician
- Set up regulated areas, containment and decontamination zones
- Identify hazardous materials and review safety data and site plans
- Remove asbestos, lead paint, mold or contaminated materials using approved methods
- Wear and maintain respirators and chemical protective clothing
- Decontaminate workers, tools and equipment
Water Treatment Plant Operator
- Monitor and adjust treatment processes and equipment
- Add and adjust chemicals for coagulation, disinfection and pH control
- Collect samples and perform laboratory tests
- Read meters, gauges and SCADA displays
- Maintain pumps, motors, valves and filters
How they’re similar
Both careers involve hands-on work, high responsibility, indoor work, and working outdoors. Both are part of the safety & environmental field, so many skills transfer between them.
Which should you choose?
Choose hazardous materials technician if…
- I follow safety procedures exactly, every time
- I can work in hot, heavy protective gear
- I want a fast path into a skilled field
Choose water treatment plant operator if…
- I like monitoring systems and keeping things running
- I’m comfortable with chemistry and math
- I want stable work that serves the community
Still torn? Take the Hazardous Materials Technician fit quiz and the Water Treatment Plant Operator fit quiz, or the full Career Match Quiz.
Quick comparisons
Which pays more, hazardous materials technician or water treatment plant operator?
Water Treatment Plant Operators earn more at the median: $60,020 versus $49,450 for hazardous materials technicians, based on BLS May 2025 data.
Which takes less time to train for?
Hazardous Materials Technicians typically train faster (1–4 weeks of required training) than water treatment plant operators (Months to years (on the job + certification)).
Which career has better job growth?
BLS projects hazardous materials technicians to grow +1.5% from 2025–35, compared with -5.7% for water treatment plant operators.