Waterworks Maintenance Mechanic / Operator

St Charles, MO, USA | 31.38 per hour | Full Time

| 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

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), à Repeat )

• 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