Capital Project, Construction Projects, Crane, Customer Support/Service, Data Analysis, Data Collection, Documentation, Driver's License, Emergency Response, Employee Assistance Plan, Equipment Maintenance/Repair, Flow Meter, Groundskeeping, Heavy Equipment/Vehicles, High School Diploma, Housekeeping/Cleaning, Identify Issues, Laboratory, Laboratory Operations, Laboratory Techniques, Manufacturing Equipment Maintenance, Operational Audit, Operations Management, People Management, Performance Analysis, Process Analysis, Project Planning, Project/Program Coordination, Public/Media/Press/Analyst Relations, Pumps, Purchasing/Procurement, Regulations, Regulatory Compliance, Regulatory Requirements, Reporting Skills, Retirement Plan, Safety Training, Safety/Work Safety, Specimen Analysis, Specimen Collection, Supervisory Control and Data Acquisition (SCADA), Systems Maintenance, Water Treatment
Join the City of O'Fallon Team!
Operator (Multiple Levels) & Operator-in-Training
Water & Wastewater Treatment Plants
Hourly Rate:
- Operator in Training: $24.74
- Operator I: $25.98
- Operator II: $28.64
- Operator III: $30.07
The City of O'Fallon is seeking motivated individuals to join our Water and Wastewater Treatment Plant Operations team. We offer multiple levels of Operator positions, including Operator-in-Training, Operator I, Operator II, and Operator III, providing clear opportunities for advancement and certification growth.
Please Note: The Water and Wastewater Treatment Plants operate 24 hours per day, 7 days per week. All employees must be available to work varying shifts, including evenings, nights, weekends, holidays, and occasional emergency call-ins.
Operator-in-Training
Overview:
This entry-level role provides foundational experience in plant operations, maintenance, and laboratory procedures. It is ideal for candidates beginning a career in water or wastewater treatment.
Major Duties:
- Perform entry-level operational and maintenance tasks
- Receive training on plant processes, equipment, safety, and regulatory requirements
- Assist experienced operators and acquire skills toward independent work
- Operate and maintain pumps, motors, treatment systems, generators, and lift stations
- Monitor and control SCADA systems
- Collect, analyze, and process various samples
- Calibrate and maintain chemical feed systems and flow meters
- Prepare MoDNR monthly operating reports and internal documentation
- Engage in data collection, reporting, and archiving
- Perform housekeeping and groundskeeping duties
- Provide customer service and promote positive public relations
- Assist with emergency bypass pumping and snow removal
- Perform other related tasks as assigned
- Work a variety of shifts in a 24/7 facility
Minimum Qualifications:
- High school diploma or GED
- Ability to obtain a valid Missouri driver's license
- Must obtain a Missouri Class D Treatment Certification within one year
Operator I
Overview:
Operator I performs routine plant monitoring, process adjustments, equipment care, and grounds maintenance to ensure safe, efficient, and compliant operations.
Major Duties:
- Make regular rounds to inspect plant operations
- Record operational data into SCADA; maintain logbook
- Clean and maintain plant grounds and facilities
- Troubleshoot equipment and make repairs
- Perform incremental cleaning and maintenance on equipment and structures
- Respond to emergency situations
- Carry out all tasks associated with Operator-in-Training
- Operate and maintain pumps, motors, treatment systems, generators, cranes, and lift stations
- Collect and process samples
- Prepare and submit MoDNR and internal reports
- Provide customer service and support public relations
- Assist with snow removal
- Perform other related duties as assigned
- Work varying shifts in a 24/7 operation
Minimum Qualifications:
- High school diploma or GED
- 1-2 years of related experience or apprenticeship
- Valid Missouri driver's license
- Missouri Class D Treatment Certification
Operator II
Overview:
Operator II serves as an experienced team member capable of performing advanced operational tasks, troubleshooting equipment, and supporting less experienced staff.
Major Duties:
- Make regular plant rounds and inspect equipment
- Record and analyze data in SCADA and operational logs
- Perform advanced troubleshooting and equipment repair
- Clean and maintain plant equipment and facilities
- Adjust plant processes as needed
- Provide guidance to less experienced operators
- Operate heavy equipment, when applicable
- Collect and analyze samples
- Prepare MoDNR reports and in-house documentation
- Perform facility housekeeping and grounds work
- Assist with emergency situations and snow removal
- Work varying shifts in a 24/7 facility
Minimum Qualifications:
- High school diploma or GED
- 2-5 years of experience in water/wastewater operations
- Valid Missouri driver's license
- Missouri Class C or Class B Treatment Certification
- Must attempt the highest certification level when eligible
Operator III
Overview:
Operator III serves as a senior operator and often acts as a crew lead in the absence of the Plant Manager or Crew Leader. This role includes advanced operational oversight, regulatory support, and project coordination.
Major Duties:
- Assist with planning, organizing, and performing daily operational tasks
- Train new Plant Operators
- Review operational and laboratory data for regulatory compliance
- Lead the crew when supervisory staff is unavailable
- Make process modifications and monitor performance through SCADA
- Perform laboratory duties when needed
- Maintain a clean and safe working environment
- Assist with chemical ordering and invoice tracking
- Support purchasing and capital project planning
- Review drawings and provide input on construction projects
- Coordinate contractor work with the Senior Plant Engineer
- Assist with groundskeeping and snow removal
- Work varying shifts in a 24/7 facility
Minimum Qualifications:
- High school diploma or GED
- 6 or more years of experience in water/wastewater operations
- Valid Missouri driver's license
- Missouri Class A Treatment Certification
- Must attempt highest-level certification when eligible
Why Work for the City of O'Fallon?
We value our employees and their wellbeing. Our comprehensive benefits package includes:
- Medical, Dental, and Vision Insurance
- Employer-paid Accident and Life Insurance
- Optional HSA with employer contributions
- FSAs and optional Pet Insurance
- Wellness rewards and onsite workout facilities
- Discounted Renaud Center membership
- Employee Assistance Program and Identity Theft Protection
- 3 weeks of vacation for new hires, 11 holidays, 1 personal holiday
- Sick leave and extended illness leave
- Zen and lactation rooms in select facilities
- Participation in the Missouri LAGERS L‑6 Pension Plan
- 457(b) retirement plan options
- Tuition reimbursement to support continued growth
Apply Today!
Make a difference where you live. Apply now to join a team that helps keep O'Fallon beautiful, active, and welcoming for all.
Visit www.ofallonmo.gov/hr to submit your application.
The City of O'Fallon is an Equal Opportunity Employer and participates in E‑Verify.