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Water / Wastewater Manager

County of Mason (WA)
Mason, WA Full Time
POSTED ON 1/5/2026 CLOSED ON 5/16/2026

What are the responsibilities and job description for the Water / Wastewater Manager position at County of Mason (WA)?

Plan, organize and manage the day-to-day activities of the Water, Wastewater Utility, and is responsible for the on-going operation and reporting for the potable water systems and the wastewater systems, consistent with all regulatory provisions.(Any one position may not include all the duties listed nor do the listed examples include all tasks which may be found in positions of this class.)
Responsible for the daily operations and maintenance assignments to sustain the operation of potable water and wastewater systems. Responsible for assigning, training, supervising, and evaluating the work performance of assigned staff. Responsible for preparing and submitting all required reports and other documentation, as required to maintain compliance with County, State Federal and local laws, regulations and/or standards.
Assign, supervise, and evaluate the work of staff. Advise and train subordinates as necessary. Participate in the selection of new employees and makes recommendations regarding hiring, performance, discipline, transfer, and termination.
Assist the Deputy Director with the preparation, administration, and monitoring of the Utilities budgets. Monitor and document program expenditures, ensuring compliance with approved budget(s) and staffing levels. Enforce department and county policies, procedures, guidelines, regulations, and safety and health standards.
Assist the Deputy Director regarding short- and long-range plans for utility operations.CoordinatesdivisionalactivitiesinconjunctionwithotherCounty departments and outside governmental agencies. Maintain interagency cooperation with all regulatory agencies and commissions.
Review permits, construction plans and specifications under guidance from the Deputy Director when needed. Oversee new construction, rehabilitation and maintenance of water and wastewater facilities.
Provide representation on interdepartmental committees and before HOA’s; make presentations and provide technical advice and assistance regarding  utilities.
Analyze and recommend systematic maintenance approaches to existing facilities, equipment, and operating systems of the division. 
Maintain records for proper evaluation, control, and documentation of assets.
Resolve inquiries, complaints, problems, or emergencies affecting the availability or quality of services. Respond to sensitive or complex inquiries of service complaints with guidance from the Deputy Director
Authorize payments for contracted services; and participate in resolution of disputed contractual matters.
Remain current on legislation, legal requirements, and regulations and communicates changes that affect operations with team. 
Regular, reliable, and punctual attendance. 
Other duties as assigned. 
Knowledge of:
  • Wastewater treatment processes, including preliminary, primary, secondary, and tertiary treatment. 
  • Solids digestion, sludge handling, and plant-wide air, water, electrical and hydraulic support systems.
  • Collection systems, including pumping stations, regulatory stations and miscellaneous structures and disinfecting methods.
  • Wastewater terminology and process control. 
  • Industrial safety procedures and practices.
  • Wastewater laboratory protocols and typical process control testing for a wastewater plant.
  • Delegates authority appropriately and monitors production/progress with effective control techniques.
  • Management and supervision principles and practices.
  • Legal requirements, regulations, and laws applicable to area of assignment
  • Techniques and practices utilized in the construction, operation and maintenance of water and wastewater systems.
  • Principles and practices of contract and grant administration.
  • County Government process, procedures and practices.
Skill in:
  • Exercising sound, ethical judgment in the decision-making process.
  • Fiscal management, including budget preparation, expenditure control and recordkeeping.
  • Computer applications including word processing and spreadsheets.
Ability to:
  • Plan, organize and oversee assigned work programs.
  • Develop departmental goals and objectives and conduct planning activities.
  • Analyze and evaluate operations, develop and implement corrective actions.
  • Establish and maintain effective working relationships with stakeholders.
  • Communicate effectively, both orally and in writing, about complex or sensitive issues.
OTHER JOB DUTIES:
  • May be required to obtain additional education as required to conduct business functions. 
(Any equivalent combination of education and experience which provides the applicant with the knowledge, skills, and abilities required to perform the job may be considered.) 
  • High School Diploma or GED and two (2) years of college (90 credits or CEU’s) and four (4) years of treatment plant experience, with at least two (2) years at a class III or higher plant. 
OR
  • High School Diploma or GED and six (6) years of treatment plant experience, with at least two (2) years at a class III or higher plant.
OR
  • High School Diploma or GED and four (4) years of college (180 credits or CEU’s) and two (2) years of treatment plant experience at a class III or higher plant. 

LICENSES, CERTIFICATES AND OTHER REQUIREMENTS:
Valid Washington State drivers' license
State of Washington Certification as a Group 3 Wastewater Operator 
Water Distribution Manager (WDM) 1 certification or ability to obtain in one (1) year
First Aid/CPR Card
Cross Connection Specialist (CCS) or ability to obtain in one (1) year
Confined Space Entry training 

This position is required to follow chapter 13 of the Mason County Personnel Policy. If offered the position you must provide a Abstract Driving Record from the WA State DOL.

Salary : $88,469 - $110,485

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