Maintenance Technician III - Stormwater Crew - INTERNAL

The Opportunity

The City of Tumwater is seeking a skilled Maintenance Technician III to serve as a technical subject matter expert on the Stormwater Crew. This advanced journey-level position plays a critical role in maintaining and improving the City’s stormwater infrastructure, including drainage systems, catch basins, pipelines, ditches, and treatment facilities.

In this role, you will perform complex maintenance, inspection, and repair work with a high degree of independence, including advanced troubleshooting and coordination of work activities. You will help support water quality goals, respond to storm‑related events and emergency conditions, and ensure stormwater systems continue operating safely and effectively.

As a Maintenance Technician III, you will provide technical guidance and mentorship to Maintenance Technician I and II staff, support team coordination, and help drive safe and efficient field operations. This is an excellent opportunity for an experienced technician ready to take on increased responsibility, apply advanced skills, and continue growing within the City.

• Independently inspect, diagnose, maintain, and repair complex stormwater conveyance systems including mains, culverts, manholes, open channels, and outfalls.
• Perform advanced maintenance and corrective actions at stormwater treatment facilities such as ponds, vaults, swales, and proprietary BMP systems.
• Identify structural deficiencies, erosion issues, and system failures and determine appropriate corrective actions.

• Lead response efforts to flooding events, storm‑related system failures, and drainage emergencies.
• Identify, assess, and respond to illicit discharges, spills, and water quality concerns in coordination with supervisory staff.
• Support compliance with state and federal stormwater permits by ensuring proper field practices and documentation.

• Operate advanced stormwater maintenance equipment including vactor trucks, street sweepers, jetting equipment, pumps, and dewatering systems.
• Lead setup, maintenance, and teardown of traffic control and work zones in accordance with City standards and MUTCD requirements.
• Perform and oversee routine inspections, greasing, fueling, and preventive maintenance of assigned vehicles and equipment.

• Ensure accurate and timely completion of work orders, inspection reports, and maintenance documentation.
• Review field documentation for completeness and accuracy and assist with correcting deficiencies.
• Update asset condition data, inspection findings, and maintenance history in asset management and GIS systems.

• Implement and adjust traffic control setups in accordance with approved plans, MUTCD requirements, and City standards.
• Serve as traffic control lead or flagger as assigned.

• Provide day‑to‑day technical guidance, mentoring, and training to Maintenance Technician I and II staff.
• Coordinate job site activities, assign tasks, and ensure safe and efficient work practices.
• Serve as project coordinator on complex or multi‑day stormwater projects.

Perform other related duties as assigned.

• Provides technical leadership and coordination of work activities on job sites when designated.
• Serves as a technical subject‑matter resource during field operations, as directed.
• Troubleshoot complex issues.
• Coordinates job‑site activities and work sequencing within established plans, procedures, and authority.
• Shares institutional knowledge.
• Possesses most/all necessary credentials for service to the assigned team.
• Mentors junior staff on policies and procedures, including (but not limited to):
• work orders
• documentation
• task performance safety practices and personal protective equipment use.

• Makes field‑level technical decisions within established procedures and authority and does not exercise formal supervisory or regulatory authority.
• Independently plans and executes complex stormwater maintenance tasks.
• Performs…