Operator positions focus on delivering results in their domain. This page aggregates open Operator roles and what employers typically expect.
**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 Qualifi…