Job Title Waterworks Maintenance Mechanic / Operator Department Public Works Department Posting Date June 30, 2026 Closing Date for Resumes/Applications Open Until Filled Salary – C Certification Salary – B Certification Salary – A Certification $31.38/ hourly $32.95/ hourly $36.24/ hourly Comprehensive, Cost Effective Benefits Package: Medical, Dental, Voluntary Vision, Life and Disability Insurance; FSA; HSA; Lagers Pension- L6 Tier and Deferred Compensation program; Paid Vacation; Paid Holidays; Employee Assistance Programs and Educational Benefits. Exempt/Non-exempt Non-exempt Status Full time The City of Saint Charles Public Works Department is currently recruiting for the position of Waterworks Operator. The purpose of this position is to perform a variety of semi-skilled and skilled technical work in the operation & maintenance of water treatment facilities and systems. Essential Duties and Responsibilities The following duties are normal for this position. These are not to be construed as exclusive or all-inclusive. Other duties may be required and assigned. • Operate and maintain all water treatment plant systems, pump stations, generators, gauges, pumps, filters, controls and equipment. • Collect bacteriological and all other samples as required by MDNR. • Monitors the performance of and operates and maintains all equipment, electrical systems, gauges, and charts in the treatment plant, pump stations, generators, pumps, filters, and other control systems; Record data concerning plant operations • Charts lab test results for trend analysis and maintains accurate records of analysis and test results; evaluates data and writes reports as required. • Collects samples and identifies concentrations of chemical characteristics of water required in accordance with local, State and Federal requirements; gathers and tests water samples for reports as required. • Perform quality control tests on lab equipment and lab analysis; chart tests results for trend analysis; and evaluate procedures to assure accuracy of test results. • Calibrate and modify instrumentation and control equipment including recorders and other water quality monitoring equipment. • Mandatory attendance and participation in: Days & Nights rotating schedule as follows: Work Shifts: 6:30AM-6:30PM(AM) & 6:30PM-6:30AM(PM) & 4-hour Friday Shift • Saturday-PM, Sunday-PM, Wed-PM, Thurs-PM, 4hr-shift Fri(PM), Mon(PM) , Tues(PM), 4-hr shift Friday(PM), Change to 12-hr Day Shift: Sat(AM), Sun(AM), Wed(AM), Thurs(AM), 4-hr shift Friday(PM), Mon(AM), Tues(AM), 4-hr shift Friday(PM), àRepeat ) • Assigned overtime as necessary to cover other shift openings. • Mathematically proficient in addition, subtraction, multiplication, division, geometry, trigonometry, and calculation of percentages, fractions, decimals, volumes, ratios, etc. • Receives after hour emergency phone calls while on duty and notifies appropriate Public Works supervisors, on-call personnel, and Public Works Management. Minimum Training and Experience Required to Perform Essential Job Functions • High school diploma or G.E.D. supplemented by two (2) years post-secondary college or technical training in biology, environmental science, chemistry or a closely related field and two (2) years' experience in a utility, or any combination of education and experience that provides equivalent knowledge, skills, and abilities. • Working knowledge of equipment, facilities, materials, maintenance and operation activities, including laboratory procedures. • Valid Missouri driver's license required. • Department of Natural Resources Class C (B, or A) Water Treatment Plant Operator Certification Preferred. Minimum requirement of Class D Certification within 6 months with ability to obtain Class C or higher certification within 18 months of hire. A Water Maintenance Worker/Operator must be capable of performing physically demanding work in a variety of outdoor and indoor environments. The position requires the ability to safely perform the following essential physical functions: • Frequently lift, carry, push, and pull materials, tools, and equipment weighing up to 50 pounds and occasionally up to 100 pounds with assistance or appropriate equipment. • Perform strenuous manual labor for extended periods of time. • Walk, stand, bend, stoop, kneel, crouch, crawl, climb, and reach while performing maintenance and repair activities. • Enter and work within trenches, excavations, vaults, pits, and other confined spaces in accordance with safety regulations. • Climb ladders, stairs, embankments, and uneven terrain. • Operate hand tools, power tools, valves, hydrants, pumps, and heavy equipment requiring manual dexterity and hand-eye coordination. • Work in awkward positions and confined areas for extended periods. • Distinguish colors, gauges, warning lights, and utility markings necessary for safe operation and maintenance activities. • Hear verbal instructions, alarms, and warning signals in noisy environments. • Maintain balance and coordination while working on wet, slippery, uneven, or elevated surfaces. • Perform emergency repairs during adverse weather conditions, including extreme heat, cold, rain, snow, and ice. • Work outdoors for prolonged periods and be exposed to dust, dirt, noise, chemicals, fumes, and other environmental conditions associated with water distribution system maintenance. • Operate motor vehicles and equipment safely and effectively. • Wear and utilize required personal protective equipment (PPE), including respiratory protection when necessary. • Respond to emergency callouts and work extended hours, including nights, weekends, holidays, and overtime as required. How to Apply: Online employment applications can be accessed on our City Website: www.stcharlescitymo.gov The City of Saint Charles is an Equal Opportunity Employer and participates in E-Verify