Top 11 Water plant operator Jobs in St. Louis, Mo

Water Treatment Plant Operator
City of St. Louis —St. Louis, MO
- $54,860 - $78,416 a year
- Overtime
- Engineering
- Mid-level
- Residential
Treatment Plant Operator Senior County Plant
Metropolitan St. Louis Sewer District —St. Louis, MO
- Full-time
- Pass drug screening
- Mid-level
- High school diploma or GED
Probationary Shift Operator
Belleville Police Department —Belleville, IL
- $28.61 an hour
- Full-time
- Mid-level
- Forklift
- High school diploma or GED
Quick Apply
Waterworks Maintenance Mechanic / Operator
City of St. Charles, MO —Saint Charles, MO
- From $31.38 an hour
- 12 hour shift
- Data analysis skills
- Mid-level
- Ability to climb stairs
- Health savings account
- Paid holidays
Quick Apply
Control Room Technician II (2nd shift) - Enterprise Physical Operations
Washington University in St. Louis —St. Louis, MO
- $25.47 - $39.49 an hour
- Online Application
- Clean driving record
- Computer literacy
- Pass drug screening
- Commuter assistance
- Employee assistance program
11d
Plant Operations Technician II
SSM Health —St. Louis, MO
- Full-time
- Mid-level
- Welding
- 2 years
- Paid parental leave
- Health insurance
Control Room Technician I (2nd shift) - Enterprise Physical Operations
Washington University in St. Louis —St. Louis, MO
- $21.17 - $32.85 an hour
- Online Application
- Clean driving record
- Computer literacy
- Writing skills
- Commuter assistance
- Employee assistance program
11d
Water Treatment Plant Supervisor I
City of St. Louis —St. Louis, MO
- $57,642 - $86,450 a year
- Full-time
- Writing skills
- Mid-level
- Residential
2nd Shift Production Operator
Closed Loop Recycling, LLC —St. Louis, MO
- $18 - $20 an hour
- Monday to Friday
- Carpentry
- Mechanic experience
- High school diploma or GED
- Paid holidays
- Dental insurance
Quick Apply
Regional Training & Operations Technician
Water Technologies —St. Louis, MO
- Nights as needed
- Writing skills
- Mid-level
- 3 years
- Health savings account
- AD&D insurance
Quick Apply
Field Service Engineer
Water Technologies —St. Louis, MO
- $42 - $46 an hour
- Full-time
- Construction site
- Customer service
- 5 years
- Health savings account
- AD&D insurance
Quick Apply

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Water Treatment Plant Operator
City of St. Louis —St. Louis, MO
Must possess a valid driver's license at the time of filing application and be able to present it upon request. Replaces and repairs plumbing equipment.
$54,860 - $78,416 a year
UTILITY PLANT OPERATOR
City Of St. Peters —Saint Peters, MO
Motor Vehicle Operator's license, valid in the state of Missouri. Maintain a valid State operator's license and participate in safety compliance.
$27.37 - $31.71 an hour
Quick Apply

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Utility Plant Operator II
ENGIE —Columbus, OH
Must possess a valid U.S. driver’s license; will drive company vehicle. You will be responsible for monitoring and regulating the performance of plant machinery…
$27.40 - $42.02 an hour
Water Plant Operator I (Vacancy)
City of Columbus —Columbus, OH
A valid driver’s license is required. Possession of a valid driver’s license. Conducts required laboratory equipment maintenance, periodic laboratory…
$30.70 - $40.01 an hour

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water plant operator jobs near st. louis, mo

Water Treatment Plant Operator

City of St. Louis -
St. Louis, MO

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Job Details

Full-time
$54,860 - $78,416 a year

Qualifications

Computer operation
Laboratory instruments
Visual color comparison
Industrial equipment adjustment
Driver's License
Data interpretation
Industrial pumps
Computer skills
Industrial equipment
Algebra
Hand tools

Full Job Description

Description

Salary: $54,860 - $78,416

Position Grade: 210T

Department: Water Division

Job Type: Full-Time (Permanent)

Examination Number: EX1693

Location: St. Louis, MO

Incumbents in this position operate and maintain a coagulant house and filter plant in order to purify drinking water and ensure the safety of the drinking water system.

Essential Functions and Responsibilities:

Operates and maintains chemical feed equipment; calculates chemical feed rates.
Maintains and monitors clear well and treatment basin elevations.
Collects bacteria water samples in order to perform lab analysis.
Completes and updates daily log sheets and laboratory test results; enters data into computer.
Operates a mechanical scraper to clean and flush chemical lines; records chemical tank elevation readings.
Inspects water treatment related equipment in order to ensure proper and safe operation.
Receives and records chemical deliveries; monitors chemical storage areas.
Operates chlorine building.
Backwashes filters and sets for proper pump rate.
Replaces and repairs plumbing equipment.
Responds to chemical emergencies.

Knowledge, Skills, and Abilities:

Data Utilization: Requires the ability to perform basic level of data analysis including the ability to review, classify, categorize, prioritize and/or reference data, statutes and/or guidelines and/or group, rank, investigate and diagnose. Requires discretion in determining and referencing such to established standards to recognize interactive effects and relationships.
Human Interaction: Requires the ability to provide guidance, assistance and/or interpretation to others, such as coworkers and the public, on how to apply policies, procedures and standards to specific situations.
Equipment, Machinery, Tools and Materials Use: Requires the ability to operate, calibrate, tune and synchronize, and perform complex rapid adjustment on equipment, machinery and tools such as hand tools, chemical pumps, chlorine and laboratory equipment, computer and/or related materials used in performing essential functions.
Verbal Aptitude: Requires the ability to utilize a wide variety of reference and descriptive data and information such as chemical records, daily logs and lab reports, blueprints, correspondence and general operating manuals.
Mathematical Aptitude: Requires the ability to perform addition, subtraction, multiplication and division; may require the ability to perform mathematical operations involving basic algebra.
Functional Reasoning: Requires the ability to apply principles of rational systems. Ability to interpret instructions furnished in written, oral, diagrammatic or schedule form. Ability to exercise independent judgment to adopt or modify methods and standards to meet variations in assigned objective.
Situational Reasoning: Requires the ability to exercise the judgment, decisiveness and creativity required in situations involving the evaluation of information against measurable or verifiable criteria.
Environmental Factors: Tasks may risk exposure to adverse environmental conditions, such as odors, wetness, humidity, fumes, noise extremes, machinery, electric currents, toxic/poisonous agents or disease.
Physical Requirements: Requires the ability to lift, carry, push, and pull moderately heavy objects and materials, twenty to fifty pounds; and may occasionally involve objects and materials up to one hundred (100) pounds, such as lifting sacks of filter gravel and pushing gas cylinders. Tasks involve the ability to exert regular and sustained heavy physical effort with an emphasis on climbing and balancing which also involves stooping, kneeling, crouching and crawling in order to perform operations and maintenance duties.
Sensory Requirements: Requires the ability to recognize and identify similarities or differences between characteristics of colors, shapes, sounds, odors and textures associated with job-related objects, materials and tasks, such as interpreting lab results or detecting machinery malfunction.

Other Requirements:

Must be available to work varying shifts including nights, weekends, holidays, and overtime.

Qualifications

An Associate's degree in Engineering, Environmental or Industrial Technologies, Building Maintenance or a related field; or at least one year experience assisting in the operation of a water treatment facility. OR an equivalent combination of training and experience.

Certification: Must obtain a Missouri Public Drinking Water Treatment System Operator Certification (Class D) by completion of the working test period.

License: Must possess and maintain a valid driver's license while employed by the City of St. Louis. Must possess a valid driver's license at the time of filing application and be able to present it upon request. Please note type of license, number, class and expiration date on the Employment Application. Only qualified applicants who provide proof of a valid driver’s license will be considered for this position.

Scoring Components and Their Weights
Experience and Training: 100%
May be Subject to:

Background Investigation: Pass/Fail
Medical Examination: Pass/Fail

Documentation of Academic Credentials must be Submitted Upon Request

When completing the Employment History and the Educational/Training History sections of the Employment Application, please be as thorough as possible when describing your education, training and experience relating to this position. Applicants will only receive credit for their experience, training and education as shown on the application. Resumes will not be accepted as a substitute to a fully completed application. Incomplete applications will not be considered.

Veterans Preference Points

To be eligible for veteran's preference points, the applicant must submit a copy of their DD 214 Certificate of Release or Discharge from Active Duty with the Employment Application or upon request. The Director of Personnel may, in their discretion, accept alternate documentation.

City Residence Preference Points

City residents who pass an examination for a position in the classified service and do not receive any other preference will receive a five (5) point preference on a scale of 100 points on the exam. An additional one (1) point shall be added to the passing score of City residents who receive any other preference on a scale of 100 points. City residents must have resided in the City for at least one (1) year at the time of filing their application to be eligible for the preference points.

Accommodations

If assistance with the job application is necessary based on a physical impairment, mental impairment, or otherwise, they should reach out to the Office on the Disabled with contact information. This office will not disclose any information that an applicant or employee has a disability or has discussed possible accommodations without the applicant's or employee's prior consent.

Job Posting: Jun 30, 2026, 3:49:04 PM

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Refine Your Search

water plant operator jobs in st. louis, mo

Water Treatment Plant Operator

Treatment Plant Operator Senior County Plant

Probationary Shift Operator

Waterworks Maintenance Mechanic / Operator

Control Room Technician II (2nd shift) - Enterprise Physical Operations

Plant Operations Technician II

Control Room Technician I (2nd shift) - Enterprise Physical Operations

Water Treatment Plant Supervisor I

2nd Shift Production Operator

Regional Training & Operations Technician

Field Service Engineer

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