Water Treatment System Operator

About Us

Onterris is a leading global environmental solutions company. Our mission is to advance the way of life while protecting the integrity of the environment. We work across disciplines to help clients achieve sustainable outcomes.

Water Treatment System Operator (Full‑time, 60 hours per week, $25/hour).

Location:

Corona, CA. This role will maintain and operate groundwater and vapor treatment plants.

• Coordinate operation, maintenance, and repair of water treatment equipment and associated well field and support equipment.
• Perform and direct activities to meet codes, standards, and water treatment objectives.
• Operate and control motors, pumps, and valves for vapor and water treatment systems.
• Collect water samples and coordinate laboratory analysis.
• Self‑perform periodic maintenance and manage subcontractors for specialized equipment service.
• Troubleshoot mechanical and electrical process equipment for initial diagnostics.
• Promote a safety‑first culture in all activities.
• Maintain effective communication with project team members.
• Plan and schedule work to meet required timelines.
• Maintain daily operations logs, inventory, site consumables, and vendor service contracts.
• Provide occasional off‑hour remote monitoring and call‑ins for system performance issues, including weekends.
• Work day/night shift rotations as required.

• Working knowledge of low‑pressure steam boilers, water treatment equipment, and control systems.
• Excellent problem‑solving skills with critical thinking and mechanical/electrical systems focus.
• Strong time‑management skills.
• Ability to work autonomously and as part of a team.
• Valid driver’s license with a clean motor‑vehicle record.
• Reliable transportation to travel to job sites.

• 1–3 years of experience in a similar role (preferred but not required).
• OSHA 40‑Hour Hazwoper certification.

We are an equal‑opportunity employer and encourage applications from people of all backgrounds. We provide access and reasonable accommodation for all applicants. For US residents, to learn more.