This recruitment will be used to fill two (2) Career Service vacant positions and may be used to create a list of competitive candidates to fill possible future Wastewater Treatment Operator vacancies within the next 6 months.
King County’s Department of Natural Resources and Parks – Solid Waste Division is seeking a Wastewater Treatment Operator who’s ready to make a meaningful difference. In this role, you’ll help protect our region’s environment by supporting the safe, efficient, and compliant operation of wastewater systems that keep our landfill sites running responsibly. Your work will contribute directly to environmental stewardship, regulatory compliance, and the reliability of essential infrastructure across the Cedar Hills Regional Landfill and other remote sites. If you’re motivated by work that truly matters and want to help safeguard our community’s natural resources, we would be excited for you to join our team!
About this Role
Working under the direction of the Wastewater Treatment Operator - Senior In Charge, this position plays a key role in the operation, maintenance, and repair of pumps, conveyance systems, and wastewater processes at the Cedar Hills Regional Landfill and other Solid Waste Division sites. The role includes monitoring water levels and pump performance, troubleshooting equipment, preparing daily control data sheets and reports, and responding to unusual or emergency situations. This is primarily outdoor work that requires proper preparation for all weather conditions, occasional overnight shifts, and support for Vactor Truck operations. You’ll perform hands-on tasks essential to keeping landfill wastewater systems operating safely, efficiently, and in compliance with environmental standards.
About the Team
The Operations Section of the Solid Waste Division runs a countywide transfer and disposal system that keeps waste moving efficiently from local transfer facilities to the Cedar Hills Regional Landfill, where a network of environmental controls manages the by-products of decomposition. It’s a dynamic, high-energy environment centered on teamwork, where skilled professionals in transportation, maintenance, landfill operations, landfill gas, and wastewater work together to deliver reliable, responsible service for the community. In this collaborative setting, you’ll be supported by a knowledgeable supervisor, communicate frequently, and apply your interpersonal skills while working both independently and as part of a team dedicated to operational excellence. To learn more about SWD visit https://kingcounty.gov/depts/dnrp/solid-waste.aspx.
Commitment to Equity, Racial, and Social Justice:
King County, named after Dr. Martin Luther King, Jr., is a diverse and vibrant community that represents cultures from around the world. Our True North is to create a welcoming community where everyone can thrive. We prioritize equity, racial and social justice, making it a foundational and daily expectation for all employees. In this position, you will actively apply these principles in all aspects of your work. Learn more about our commitment at http://www.kingcounty.gov/equity.
Apply now for a rewarding career at the Solid Waste Division of the King County Department of Natural Resources & Parks. Join our talented workforce in protecting and restoring the natural environment and promoting more resilient, sustainable, and equitable communities. Enjoy training, comprehensive benefits, and growth opportunities.
Working Conditions:
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Work Location: Primary work location is Cedar Hills Regional Landfill located at 16645 228th Ave SE, Maple Valley, WA 98038 with various locations throughout King County, WA.
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Work Schedule: This position works a 40-hour workweek, is non-exempt from the Fair Labor Standards Act and is overtime eligible. This position will likely work a 5/8 schedule Monday through Friday 6:00 a.m. to 2:30 p.m. or 2:30 p.m. to 11:00 p.m. or 4/10 schedule 6 a.m. – 4:30 a.m. In addition, this position may be assigned to be on stand-by on off-shift times and emergency call-out, and must be available for weekends, holidays and on call status which is optional. Solid Waste Division facilities are open seven days a week.
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Union Representation: This position is represented by the International Union of Operating Engineers, Local 302.
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Physical Environment: The incumbents perform field work at Cedar Hills Regional Landfill and associated facilities and must be able to walk long distances and may need to lift and carry up to 50 lbs. The candidate must have the ability to work in confined spaces, climb in and out of tanks using ladders, work inside/outside in heat/cold, wet/humid, inclement weather while on uneven slopes, surfaces, grades and terrain and other adverse conditions such as odor, high volume noise, dust, and heavy traffic. This is primarily an outdoor duty assignment; dressing properly for all weather conditions needs to be considered.
Application and Selection Process: We welcome applications from all qualified applicants. We value diversity, diverse perspectives, and life experience and encourage people of all backgrounds to apply.
Application materials will be screened for clarity, completeness, and alignment with the experience, qualifications, knowledge, and skills essential for this role to determine which candidates may be invited to participate in one or more panel interviews.
To apply, submit a:
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Complete Application including answering the Supplemental Questions
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Optional Resume (will be reviewed if submitted)
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Optional Cover Letter (will be reviewed if submitted)
Note: Additional documents won't be considered during minimum qualification screening.
For more information regarding this recruitment, please contact Susan Ng at [email protected]
Discover More About the Solid Waste Division: Visit our website at our website at Solid Waste Division and check us out at Facebook | Twitter | Instagram | YouTube.
Discover More About DNRP: Visit our website, explore an interactive map of our recent accomplishments and check us out at Facebook, X (formerly Twitter), LinkedIn, TikTok, Instagram, YouTube and Keeping King County Green News.
Sign up for Job Alerts to be notified of additional career opportunities with King County. Select the Natural Resources category for DNRP opportunities and explore other categories of interest.
Are you ready to make a difference? Come join the team dedicated to serving one of the nation's best places to live, work and play.
Application Process
If you are interested in pursuing this position and supporting King County’s vision for unified, equitable, and high-performing government, please follow the application instructions carefully. Provide us with your work history as applicable, ensuring that you provide details that highlight your ability to fulfill the requirements for this position.
If you need this announcement in an alternate language or format, or you would like to request accommodation or assistance in the application or assessment process, please contact Susan Ng at [email protected].
King County's Vision, Mission, and ACTIVATE Values unite us.
King County serves residents with a relentless sense of urgency, delivering on commitments with transparency and accountability. We are action-oriented, creative problem solvers who collaborate across roles, engage directly with communities, and challenge the status quo to achieve meaningful impact. As a unified team, we uphold high ethical and stewardship standards, embrace change, stay curious, and continuously improve. Across all interactions, we listen first, act quickly, and stay aligned as a team to earn and sustain public trust. Learn more about our Vision, Mission, and ACTIVATE Values here and visit our Why work at King County page here.
King County is an Equal Employment Opportunity (EEO) Employer
No person is unlawfully excluded from employment opportunities based on sex, race, color, national origin, ethnicity, religious affiliation, disability, sexual orientation, gender identity or expression, age except by minimum age and retirement provisions, pregnancy, status as a family caregiver, parental status, marital status, military status or status as a veteran who was honorably discharged or who was discharged solely as a result of the person's sexual orientation or gender identity or expression, citizenship or immigration status, genetic information, or other protected class. However, to the extent that distinction or differential treatment on the basis of citizenship or immigration status is authorized by either federal or state law, regulation, or government contract, it is not an unfair practice.
Our EEO policy applies to all employment actions, including but not limited to recruitment, hiring, selection for training, promotion, transfer, demotion, layoff, termination, rates of pay or other forms of compensation.
