Join the City of O'Fallon Team!Operator (Multiple Levels) & Operator-in-TrainingWater & Wastewater Treatment PlantsHourly Rate:• Operator in Training: $24.74• Operator I: $25.98• Operator II: $28.64• Operator III: $30.07The 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-TrainingOverview: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 facilityMinimum 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 yearOperator IOverview: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 operationMinimum Qualifications:• High school diploma or GED• 1–2 years of related experience or apprenticeship• Valid Missouri driver's license• Missouri Class D Treatment CertificationOperator IIOverview: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 facilityMinimum 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 eligibleOperator IIIOverview: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 facilityMinimum 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 eligibleWhy 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 growthApply 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.
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