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Water Quality Planner​/Project Manager III

Job in Seattle, King County, Washington, 98127, USA
Listing for: King County, WA
Full Time position
Listed on 2026-07-06
Job specializations:
  • Engineering
    Environmental Engineer, Water Management, Water Engineer, Environmental & Urban Planning
Salary/Wage Range or Industry Benchmark: 80000 - 100000 USD Yearly USD 80000.00 100000.00 YEAR
Job Description & How to Apply Below

Overview

This opportunity is open to current King County employees. We are not accepting external applications at this time.

King County Wastewater Treatment Division (WTD) Environmental and Community Services Section (ECSS) is seeking up to two (2) qualified candidates for the role of Water Quality Planner/Project Manager III. This senior-level position will support complex projects that protect and enhance water quality, serving as a subject matter expert on water quality permitting issues for capital projects during design and implementation. The Water Quality team provides expertise on development and execution of water quality management for construction of capital improvement projects.

The role offers opportunities to apply and enhance technical skills related to construction site water management and erosion and sediment controls, with water quality compliance oversight on WTD construction projects in a collaborative environment.

About

The Role

This senior-level position uses technical expertise in water quality principles to support a wide range of capital projects and programs during all phases of project delivery. Responsibilities include independently managing a diverse project portfolio to ensure CSWGP, KCIW, and local municipality stormwater and sanitary sewer permits are acquired efficiently and timely. The role will oversee and coordinate the development of project strategies for temporary erosion and sediment control and site water management with consultant and county project teams.

QA/QC functions during construction will ensure water quality requirements are met. The Water Quality Planner/Project Manager III will support capital projects and programs as a construction water quality subject matter expert on projects with complex or significant environmental impacts, collaborating with Environmental Planners, Mitigation-Monitoring staff, Construction Management staff, and other team members. The role also supports program development by contributing to contract scopes of work, facility program planning, and program goals.

What

You Will Be Doing
  • Serve as a water quality subject matter expert for complex, high-risk capital and operating projects involving decisions where guidelines or procedures may need to be developed.
  • Provide technical expertise on construction site water management and sediment/erosion control during design and implementation for complex capital projects and programs.
  • Conduct weekly construction site inspections of temporary erosion and sediment controls (TESC) and water quality permit compliance.
  • Develop scopes of work for consultant support of capital projects.
  • Coordinate with Washington Department of Ecology, King County Industrial Waste, and local jurisdictions to resolve construction challenges and ensure projects meet surface water quality and sanitary sewer requirements.
  • Support other Water Quality and Mitigation and Monitoring staff as needed.
Qualifications You Bring
  • Extensive knowledge of water quality principles in fields such as environmental engineering or planning, geology, hydrology, water resource management, environmental monitoring, or related areas.
  • At least five years of experience conducting construction inspections with responsibilities for compliance with Construction Stormwater General Permit and King County Industrial Waste permits.
  • Excellent oral and written communication skills and the ability to convey complex technical information to diverse audiences.
  • Ability to analyze and summarize complex data to inform project planning and construction.
  • Strong technical writing skills for environmental planning documents and scopes of work.
  • Experience working with construction contract specifications and contractors to ensure water management plans conform with permits.
  • Knowledge of dewatering processes, permit implications, and management of dewatering discharges.
  • Knowledge of critical area protections and restoration principles.
Competencies You Bring
  • Action Oriented:
    Taking on new opportunities and tough challenges with urgency and energy.
  • Collaborates:
    Building partnerships and working collaboratively to meet shared objectives.
  • Manages Ambiguity:
    Navigatin…
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