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Wastewater Treatment Plant Operation and Maintenance Supervisor IV (F2-13)
County of MauiMaui County (various), United Statesfull_timeVerifiedPosted 9 Jul 2026
💰 $101,448/yr
About the role
Posting number: HC R-04349
Department: Department of Environmental Management
Job classification: WASTEWATER TREATMENT PLANT OPERATION AND MAINTENANCE SUPERVISOR IV
Posting type: Open
Categories: Waste Management, Wastewater
Summary
IMMEDIATE VACANCIES:
Permanent Full-Time: Lahaina
Supervises the operation, maintenance, overhaul and repair of a Class II, III, or IV wastewater treatment plant and lower classed plants, as well as related tributary pumping plants, equipment and facilities through subordinate supervisors; and performs other related duties as required.Distinguishing Characteristics:
These classes differ from the Assistant Wastewater Treatment Plant Operation and Maintenance Supervisor II, III, and IV in that the Wastewater Treatment Plant Operation and Maintenance Supervisor II, III, and IV supervises through subordinate supervisors and has immediate charge of and twenty-four (24) hour responsibility for, all operational, maintenance, overhaul and repair activities at a Class II, III, or IV wastewater treatment plant and tributary pumping plants; whereas the Assistant Wastewater Treatment Plant Operation and Maintenance Supervisor II, III, and IV assists in the supervision and participates in the operation, maintenance, overhaul and repair of a Class II, III, or IV wastewater treatment plant and it's related tributary pumping plants, equipment and facilities.
Grade IV: This level is characterized by its primary responsibility for supervising through a subordinate level of supervision, all operational, maintenance, overhaul and repair activities at a Class IV wastewater treatment plant, as rated by the State Board of Certification of Operating Personnel in Wastewater Treatment Facilities.
Examples of duties
The following are examples of duties and are not necessarily descriptive of any one position in this class. The omission of specific duties statements does not preclude management from assigning such duties if such duties are a logical assignment for the position.
Supervises, through subordinate supervisors, the overall operation, maintenance, overhaul and repair of a Class II, III, or IV wastewater treatment plant and has twenty-four hour responsibility for the wastewater treatment plant and its related tributary pumping plants in regulating the flow of wastewater, air and sludge through the various stages of the treatment processes; inspects plant equipment and observes unit process functions at regular intervals to determine efficiency of plant operation; initiates changes as required to meet process quality control requirements; analyzes and evaluates instrument readings and reports of laboratory analyses to maintain or improve plant operations; assigns duties to plant personnel and instructs and supervises them in their work; determine causes of malfunctions and initiates corrective actions; supervises the operation of chemical feed systems and in the operation, installation, maintenance, overhaul, repair, and testing of all wastewater treatment and pumping plant equipment; supervises the painting of equipment, buildings and other plant structures, the collection and laboratory analyses of samples; maintains and evaluates operating and maintenance records, and prepares and submits various operational reports; recommends process modifications to improve plant performance; reads and interprets plans and specifications, and maintains familiarity with manufacturers' manuals and new treatment processes and techniques; responds to emergency calls; submits job orders and requisitions for tools, materials and supplies; participates in the evaluation of subordinates; participates in the on-going safety and training programs; operates a motor vehicle to transport personnel and equipment.
Qualifications
Training and Experience:Grade IV: A combination of education and experience substantially equivalent to graduation from high school, and four and one-half (4-1/2) years of work experience in the operation and maintenance of a Grade III or higher level wastewater treatment plant, six (6) months of which shall have been in a supervisory capacity.
License Requirement: Possession of the applicable Hawaii Mandatory Wastewater Treatment Plant Operator Certificate and possession of a valid Hawaii State driver's license (Type 3).
Knowledge of: principles and practices of supervision; practices and procedures used in the operation, maintenance, overhaul and repair of wastewater treatment and pumping plant equipment; the various types of wastewaters and associated treatment and disposal problems and processes; sampling methods and the physical and chemical tests used in treatment plant control;
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