Water Resources Plant Maintenance Specialist I​/II- Reclamation

Description/Duties

The current recruitment will be used to fill current vacancies in the Water Reclamation Plant Assignment at either the Water Resources Plant Maintenance Specialist I or Water Resources Plant Maintenance Specialist II level. Employees may progress through the full salary range, subject to their successful performance and annual budget approval. The first review of applications will be on Monday, September 22, 2025 and weekly thereafter as needed.

A Water Resources Plant Maintenance Specialist I is a one-year assignment where incumbents function as a trainee and are responsible for learning how to and begin to maintain the City of Mesa’s water reclamation or water treatment plants (depending on assignment). An employee in this class accompanies and observes a lead person, specifically the Water Resources Plant Maintenance Specialist II and/or III class, thus performing daily activities and assisting in performing entry-level work.

As the incumbent demonstrates the ability to perform the full range of the proposed Water Resources Plant Maintenance Specialist I duties, the complexity and difficulty of assignments will increase. During this one-year assignment the incumbent must meet requirements and expectations outlined in the criteria-based promotion document. In addition, the incumbent must complete these requirements and proceed to the Water Resources Plant Maintenance Specialist II classification within the one-year time frame.

Incumbents may be assigned to either the Southeast, Northwest, or Greenfield Water Reclamation Plants. Entry-level work will consist of plant maintenance work including installing, maintaining, and repairing equipment and facilities such as bar screens, compactors, degritters, mixers, pumps, compressors, pipes, blowers, odor control devices, centrifuges, ultraviolet (UV) equipment, chemical metering pumps, sludge hoppers, conveyor systems, boilers, biogas systems, waste gas flares, valves, gear boxes, and tanks.

Incumbents also learn the basics of plant operations involving primary treatment, secondary treatment, activated sludge processes, filtration, disinfection, sludge dewatering, and digestion.

This class is distinguished from the Water Resources Plant Maintenance Specialist II class by its responsibility for performing entry-level plant maintenance duties while learning to perform journey-level plant maintenance. This class is provided guidance by either the Water Resources Plant Maintenance Specialist II, Water Resources Plant Maintenance Specialist III, or Water Resources Plant Supervisor. On-site observation of work in progress, finished projects, and meetings to discuss strategy and other challenges while performing routine duties.

An employee in this class is required to use appropriate safety equipment and follow safety procedures in performing assignments. Job hazards may include a variety of weather conditions, ferrous chloride, raw sewage, toxic chemicals, high-voltage lines, and confined spaces. This class may be subject to emergency callout, stand‑by and must be willing to work overtime as required.

Employees in this class may progress to the Water Resources Plant Maintenance Specialist II class by non‑competitive, criteria‑based promotion after successful completion of required coursework, on‑the‑job training, and achievement of satisfactory performance appraisals. This class is FLSA nonexempt.

The Water Resources Plant Maintenance Specialist II is responsible for performing specialized, journey‑level work that involves installing, maintaining, and repairing water treatment or water reclamation equipment (depending on assignment). An employee in this class accompanies and observes a lead person, the Water Resources Plant Maintenance Specialist III, performing daily activities and assisting in performing treatment plant maintenance activities. Assigned tasks increase in scope and difficulty as the incumbent demonstrates the ability to perform the full‑range of duties…