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State of Washington Classified Job Specification


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Class Code: 602V
Category: Maintenance Trades & Labor


As a certified Group 3 wastewater treatment plant operator, operates and maintains a Class 3 wastewater treatment plant at an institution.

Typical Work

Plans, schedules, and supervises, and performs the operation and maintenance of the wastewater treatment plant and potable water system; supervises unskilled and skilled workers and residents; Instructs operating personnel in proper operating and maintenance methods and procedures;

Inspects plant and advises management regarding maintenance, operational and safety problems and recommends corrective action;

Directs and/or performs and records physical and analytical tests as required by regulatory agencies and applicable permits; Maintain laboratory accreditation; Attends meetings;

Coordinates with contractors, engineers, vendors, maintenance personnel, and other agencies to ensure the uninterrupted operation of the water and wastewater treatment plants;

Orders supplies, parts, and equipment; Keep necessary inventory for testing and maintenance needs; file and maintain all records pertaining to plant operations;

Attend appropriate training relevant to water, wastewater, and sludge as required to keep licenses active and abreast of new laws and technologies;

Instructs operating personnel in proper operating and maintenance methods and procedures;

Performs other work as required.

Knowledge and Abilities

Knowledge of: waste water disposal laws; methods, materials and tools used in operation and maintenance of secondary sewage treatment plant; treatment plant safety; heating, power and other related mechanical equipment; standard types of automatic controls.

Ability to: perform chemical tests and analyze plant operation; instruct and supervise others; keep records; make written reports.

Legal Requirement(s)

There may be instances where individual positions must have additional licenses or certification. It is the employer’s responsibility to ensure the appropriate licenses/certifications are obtained for each position.

Desirable Qualifications

Certification by Department of Ecology as a Group 3 wastewater treatment plant operator.

Note:  Classification of the wastewater treatment plant will be determined by the Department of Ecology.

Note:  Incumbents in some positions in this class will be required to obtain and maintain a Water Distribution Manager 2 Certificate of Competency issued by the Department of Health.  This Certificate of Competency is required by the Safe Drinking Water Act.

Class Specification History

New class adopted June 11, 1999.
Revise class. Revises class code (formerly 75421), adopted May 10, 2007, effective July 1, 2007.