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Water Quality Planner​/Project Manager III

Job in Seattle, King County, Washington, 98104, USA
Listing for: King County
Full Time position
Listed on 2026-07-02
Job specializations:
  • Engineering
    Environmental Engineer, Water Management, Water Engineer, Environmental/ Urban Planning
Job Description & How to Apply Below

Water Quality Planner/Project Manager III

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 and Services Section (ECSS) is seeking up to two qualified candidates for the role of Water Quality Planner/Project Manager III to support complex projects that protect and enhance water quality. This position will act as a subject matter expert representing water quality permitting issues on capital projects during design and implementation.

This is a great opportunity to play a critical role in upholding King County's values of responsible environmental stewardship while supporting projects that deliver essential public infrastructure to communities. The Water Quality team is a high-performing, dynamic group of professionals who provide expertise on the development and execution of water quality management for construction of capital improvement projects. This senior-level position will offer opportunities to apply and enhance technical skills related to construction site water management and erosion and sediment controls, and will also provide water quality compliance oversight on WTD construction projects, all in a collaborative environment.

About the Role

This senior-level position will use technical expertise in water quality principles to support a wide range of capital projects and programs during all phases of project delivery. As a Water Quality Planner/Project Manager III, this position will independently manage a diverse project portfolio to ensure Ecology's Construction Stormwater General Permit (CSWGP), King County Industrial Waste (KCIW) permits, and local municipality stormwater and sanitary sewer permits are acquired in an efficient and timely manner.

This position 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. Work includes performing Quality Assurance/Quality Control (QA/QC) functions during construction to ensure water quality requirements are met. The Water Quality Planner/Project Manager III will independently support capital projects and programs by serving as a construction water quality subject matter expert on projects with complex or significant environmental impacts.

This role includes opportunities to apply stormwater and dewatering site water management expertise to project design and implementation in collaboration with Environmental Planners, Mitigation-Monitoring staff, Construction Management staff, and other project team members. The WQPPM III will also support program development by collaborating with other team members on contract scopes of work, facility program planning, and program goals. This position provides a career growth opportunity for candidates with broad expertise in stormwater management and temporary erosion and sediment control principles and practices, surface water quality requirements for construction, hazardous spill and emergency response procedures, CSWGP and KCIW permit compliance, contract management, construction processes, and knowledge of environmental regulations such as the federal Clean Water Act, the National Pollution Discharge Elimination System (NPDES), and the Washington State Environmental Policy Act (SEPA).

About the Team

WTD's mission is to protect public health and the environment by collecting and cleaning wastewater while recovering valuable resources for a thriving Puget Sound. Our regional wastewater treatment system has a big job to do. Not only does it operate around the clock to sustain a healthy environment, but this vital infrastructure also supports economic development that enables our region to flourish.

WTD's Environmental and Community Services Section has over 110 employees supporting the growth and strategic development of the largest capital program in King County, with projects and programs stretching across 2,200 square miles and serving a population of over two million people. ECSS integrates permitting, environmental review, ecological protection and mitigation/restoration, real estate acquisition and management, and community engagement. Within ECSS, the Environmental Services Unit provides subject matter expertise in environmental review, environmental permitting and regulatory compliance strategy, cultural resources protection, and environmental mitigation.

ECSS is committed to WTD's core values of environmental stewardship, quality of service, and financial accountability. Our team members are empowered to work collaboratively, communicate effectively, learn and grow from each other, and create innovative solutions to various challenges. Our commitment to equity and social justice, consistent with King County's values, makes our teams stronger and allows us to serve King County residents more effectively, especially related to environmental determinants…

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