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Water Treatment Plant Operator

Job

City of St. Louis

Saint Louis, MO (In Person)

$66,638 Salary, Full-Time

Posted 1 week ago (Updated 5 days ago) • Actively hiring

Expires 8/3/2026

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Job Description

Water Treatment Plant Operator City of St. Louis - 3.2 St. Louis, MO Job Details Full-time $54,860 - $78,416 a year 23 hours ago Qualifications Computer operation 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:
210
T Department:
Water Division Job Type:
Full-Time (Permanent)
Examination Number:
EX1 693
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 room, which includes round-the-clock monitoring of chlorine railcar. 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