City of Sioux City WWTP Maintenance Mechanic - IV-6224 in Sioux City, Iowa

WWTP Maintenance Mechanic - IV-6224

Job Code


Posted On

August 11th, 2017

Closing On

September 1st, 2017


Bargaining Units more...


Waste Water Treatment Plant


Waste Water Treatment Plant Sioux City, IA 3100 S Lewis Blvd, Sioux City, IA 51106

Pay Rate


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Civil Service Application - Entrance/EEO/One Source [pdf]



Maintenance Mechanic-Wastewater Treatment Plant, $21.84/Hour. Under general direction of the Maintenance Supervisor, performs maintenance and repair work for the Waste Water Treatment Plant Facilities. General mechanical skills with emphasis on pumps, compressors, blowers, etc. This full-time position 40 hours per week will work Monday – Friday, including stand-by hours of one week per month.

Job Description


Under general direction of the Maintenance Supervisor, assists with the routine and skilled maintenance and repair of the Wastewater Treatment Plant and related facilities and equipment

ESSENTIAL DUTIES OF POSITION (with or without accommodation)

The following duties are normal for this position. These are not to be construed as exclusive or all inclusive. Other duties may be assigned.

  • Performs maintenance and repair work on plant facilities, pumps, engines, motors, chemical feeders, filters, bar screens, valves, pipes, heat exchangers, air compressors, heating/cooling equipment, aeration equipment, and other major mechanical and hydraulic equipment found in a wastewater treatment facility.

  • Checks grease charts and bearing temperatures to assure proper maintenance of equipment.

  • Changes spark plugs, oil and related items.

  • Welds cast iron, steel, brass, copper, and aluminum.

  • Installs new equipment

  • Fabricates and machines repair parts for equipment; uses lathes, drill presses and other metal working power tools.

  • Inspects mechanical and hydraulic equipment being installed under contracts to insure compliance with contract requirements.

  • Monitors facilities and equipment to identify and repair leaks or other malfunctions.

  • Operates oils and adjusts pumps and machinery; wash filters.

  • Maintains log of maintenance activities, repairs and operations.

  • Maintains buildings and grounds.

  • Keeps records and makes reports.

  • Performs janitorial work.

  • Washes and maintains filters.

  • Collects water samples and conducts routine tests and analysis.

  • Monitors plant operation and controls; and makes adjustments to maintain proper operation.

  • Receives, records and dispatches after hours calls for service.

  • May act in the absence of the wastewater treatment plant operator, if in possession of required certificiation.

  • Maintains regular and punctual attendance at work, accept "on-call" rotations as assigned.

  • Establishes and maintains effective working relationships with officials, other agencies, fellow employees, and the general public.

  • Regularly lifts up to 50 pounds and occasionally lifts up to 75 pounds.

  • Expected to temporarily perform duties outside of normal classification in the event of a declared emergency. In the event that an employee is excused from work other than being sick, they will be required to report to work in a state of declared emergency.

Preferred Skills


Graduation from standard high school or GED, preferably including course work in algebra, chemistry and biology; and five years experience in mechanical maintenance and repair of equipment and machinery, preferably including three years experience in a water or wastewater facility; or any combination of experience and training which provides the required knowledge, skills and abilities.



The employee frequently is required to use hands to finger, handle or feel; reach with hands and arms; and smell. Ability to quickly move hands, hands together with arms, or two hands to grasp, manipulate, or assemble objects, ability to exert muscle force repeatedly or continuously over time; this involves muscular endurance and resistance to muscle fatigue, ability to use abdominal and lower back muscles to support part of the body repeatedly or continuously over time without 'giving out' or fatiguing, ability to quickly and repeatedly bend, stretch, twist, or reach out with body, arms and/or legs. Ability to speak clearly so others can understand you, ability to see details at close range (within a few feet of the observer), ability to see details at a distance, ability to identify and understand the speech of another person, ability to listen to and understand information and ideas presented through spoken words and sentences.

Job Knowledge

Requires a working knowledge of the maintenance and repair of machinery and related mechanical equipment; some knowledge of the waste water treatment system, personal computers and related software, and routine chemical tests for water quality. Knowledge of the operation and maintenance of utility plant operating equipment, low pressure boilers, clarifiers, filters, digesters, pumps, and auxiliary equipment, knowledge of the principles of hydraulics, electricity, combustion and standard safety practices. Ability to diagnose equipment problems and to determine proper remedial action; ability to use a wide variety of hand tools, shop and diagnostic equipment; ability to read piping and wiring diagrams and blueprints; ability to plan and complete assigned work. Ability to read meters, gauges and charts and maintain routine records; operate pumps, hand tools, mowers, computers, and small trucks. Establish and maintain effective working relationships with fellow employees, City officials and regulatory personnel.

Language Skills and Interpersonal Communication

Requires effective communication skills and the ability to provide assistance to employees. Requires the ability to speak clearly, distinctly and effectively with fellow employees; read in English and compare similarities and differences between words and series of numbers; apply common sense understanding to the work process and procedures; and follow verbal and written instructions.

Work Environment

While performing the duties of this job, the employee is frequently exposed to wet and/or humid conditions, moving mechanical parts, toxic or caustic chemicals, outside weather conditions, and risk of electrical shock. The employee is occasionally exposed to high, precarious places; fumes or airborne particles; extreme cold and extreme heat. The noise level in the work environment is usually loud.

Special Requirements

Requires a valid Motor Vehicle Operators License issued by the State of Iowa. In order to voluntarily act as a plant operator, employees must have possession of an Iowa Grade II Wastewater Treatment License.