Previous experience with Wastewater Collection System Planning/Hydraulic Modeling is required, including master planning, infiltration and inflow analysis, flow monitoring, risk assessments ...
Quick apply
Previous experience with Wastewater Collection System Planning/Hydraulic Modeling is required, including master planning, infiltration and inflow analysis, flow monitoring, risk assessments ...
Quick apply
Previous experience with Wastewater Collection System Planning/Hydraulic Modeling is required, including master planning, infiltration and inflow analysis, flow monitoring, risk assessments ...
Medford, OR · On-site
$101K - $180K/yr
Previous experience with Wastewater Collection System Planning/Hydraulic Modeling is required, including master planning, infiltration and inflow analysis, flow monitoring, risk assessments ...
Quick apply
Medford, OR · On-site
$101K - $180K/yr
Previous experience with Wastewater Collection System Planning/Hydraulic Modeling is required, including master planning, infiltration and inflow analysis, flow monitoring, risk assessments ...
Previous experience with Wastewater Collection System Planning/Hydraulic Modeling is required, including master planning, infiltration and inflow analysis, flow monitoring, risk assessments ...
Previous experience with Wastewater Collection System Planning/Hydraulic Modeling is required, including master planning, infiltration and inflow analysis, flow monitoring, risk assessments ...
Previous experience with Wastewater Collection System Planning/Hydraulic Modeling is required, including master planning, infiltration and inflow analysis, flow monitoring, risk assessments ...
Previous experience with Wastewater Collection System Planning/Hydraulic Modeling is required, including master planning, infiltration and inflow analysis, flow monitoring, risk assessments ...
OR · On-site
$83K - $108K/yr
Position Description This position focuses on wastewater collection system improvement projects and provides engineering support from initial planning through design, construction, and project ...
OR · On-site
$83K - $108K/yr
Position Description This position focuses on wastewater collection system improvement projects and provides engineering support from initial planning through design, construction, and project ...
$83K - $108K/yr
Position Description This position focuses on wastewater collection system improvement projects and provides engineering support from initial planning through design, construction, and project ...
$83K - $108K/yr
Position Description This position focuses on wastewater collection system improvement projects and provides engineering support from initial planning through design, construction, and project ...
Salem, OR · On-site
$32.46 - $39.49/hr
Technical Knowledge Familiarity with wastewater collection systems. Ability to read and interpret maps, diagrams, technical documents, and written specifications. Comfort operating a variety of ...
Salem, OR · On-site
$32.46 - $39.49/hr
Technical Knowledge Familiarity with wastewater collection systems. Ability to read and interpret maps, diagrams, technical documents, and written specifications. Comfort operating a variety of ...
The System Operator shall possess and maintain current wastewater level III treatment and level II collection certification OR level I certification in water distribution, treatment, and a Cross ...
Quick apply
The System Operator shall possess and maintain current wastewater level III treatment and level II collection certification OR level I certification in water distribution, treatment, and a Cross ...
Ontario, OR · On-site
$22.50/hr
The selected candidate will work in the operations, repair and maintenance of streets, water distribution systems and wastewater collection systems. Hours are Monday - Friday, 7:00am - 3:30pm This ...
Ontario, OR · On-site
$22.50/hr
The selected candidate will work in the operations, repair and maintenance of streets, water distribution systems and wastewater collection systems. Hours are Monday - Friday, 7:00am - 3:30pm This ...
Wastewater Treatment Plant Operator 2 or 3 Non-Union Position WTR-Operations Water Services-Hiland ... Oversee collection system operation, inspection, and repair. This is a staff leadership position ...
Wastewater Treatment Plant Operator 2 or 3 Non-Union Position WTR-Operations Water Services-Hiland ... Oversee collection system operation, inspection, and repair. This is a staff leadership position ...
Wastewater Treatment Plant Operator 2 or 3 Non-Union Position WTR-Operations Water Services-Hiland ... Oversee collection system operation, inspection, and repair. This is a staff leadership position ...
Wastewater Treatment Plant Operator 2 or 3 Non-Union Position WTR-Operations Water Services-Hiland ... Oversee collection system operation, inspection, and repair. This is a staff leadership position ...
Wastewater Treatment Plant Operator 2 or 3 Non-Union Position WTR-Operations Water Services-Hiland ... Oversee collection system operation, inspection, and repair. This is a staff leadership position ...
Wastewater Treatment Plant Operator 2 or 3 Non-Union Position WTR-Operations Water Services-Hiland ... Oversee collection system operation, inspection, and repair. This is a staff leadership position ...
$145K - $165K/yr
Registration as a Professional Engineer * 10-15 years of directly-relevant experience in Wastewater Engineering working with wastewater treatment facilities and wastewater collection systems * 5+ ...
Quick apply
$145K - $165K/yr
Registration as a Professional Engineer * 10-15 years of directly-relevant experience in Wastewater Engineering working with wastewater treatment facilities and wastewater collection systems * 5+ ...
Ontario, OR · On-site
$22.50/hr
... comfortable operating equipment and performing outdoor labor in various weather conditions ... wastewater collection systems • Inspect and maintain water lines, sewer systems, storm drains ...
Ontario, OR · On-site
$22.50/hr
... comfortable operating equipment and performing outdoor labor in various weather conditions ... wastewater collection systems • Inspect and maintain water lines, sewer systems, storm drains ...
Keizer, OR · On-site
$104K - $142K/yr
Lead the planning, design, and delivery of wastewater collection systems, pump stations, and treatment facilities. * Develop project scopes, budgets, and schedules, ensuring quality and efficiency at ...
Keizer, OR · On-site
$104K - $142K/yr
Lead the planning, design, and delivery of wastewater collection systems, pump stations, and treatment facilities. * Develop project scopes, budgets, and schedules, ensuring quality and efficiency at ...
$38.12 - $47.52/hr
The Wastewater Operator II maintains established water quality standards through the effective ... Portland's collection system, headworks, secondary and influent flows, peak-flow gates, offsite ...
$38.12 - $47.52/hr
The Wastewater Operator II maintains established water quality standards through the effective ... Portland's collection system, headworks, secondary and influent flows, peak-flow gates, offsite ...
Tualatin, OR · On-site
$108K - $149K/yr
Lead the planning, design, and delivery of wastewater collection systems, pump stations, and treatment facilities. * Develop project scopes, budgets, and schedules, ensuring quality and efficiency at ...
Tualatin, OR · On-site
$108K - $149K/yr
Lead the planning, design, and delivery of wastewater collection systems, pump stations, and treatment facilities. * Develop project scopes, budgets, and schedules, ensuring quality and efficiency at ...
Corvallis, OR · On-site
$17 - $19.50/hr
Position Summary Inspect, install, maintain, operate, and repair the City's water distribution, wastewater collection, and stormwater, transportation systems, vehicles, equipment, facilities and ...
Corvallis, OR · On-site
$17 - $19.50/hr
Position Summary Inspect, install, maintain, operate, and repair the City's water distribution, wastewater collection, and stormwater, transportation systems, vehicles, equipment, facilities and ...
$110K - $152K/yr
Registration as a Professional Engineer * 10-15 years of directly-relevant experience in Wastewater Engineering working with wastewater treatment facilities and wastewater collection systems * 5+ ...
$110K - $152K/yr
Registration as a Professional Engineer * 10-15 years of directly-relevant experience in Wastewater Engineering working with wastewater treatment facilities and wastewater collection systems * 5+ ...
Portland, OR · On-site
$110K - $152K/yr
Registration as a Professional Engineer * 10-15 years of directly-relevant experience in Wastewater Engineering working with wastewater treatment facilities and wastewater collection systems * 5+ ...
Portland, OR · On-site
$110K - $152K/yr
Registration as a Professional Engineer * 10-15 years of directly-relevant experience in Wastewater Engineering working with wastewater treatment facilities and wastewater collection systems * 5+ ...
$15.76 - $18.65
6% of jobs
$18.65 - $21.53
17% of jobs
$21.87 is the 25th percentile. Wages below this are outliers.
$21.53 - $24.42
14% of jobs
The median wage is $27.09 / hr.
$24.42 - $27.31
14% of jobs
$27.31 - $30.20
10% of jobs
$30.20 - $33.09
11% of jobs
$34.35 is the 75th percentile. Wages above this are outliers.
$33.09 - $35.97
9% of jobs
$35.97 - $38.86
7% of jobs
$38.86 - $41.75
5% of jobs
$41.75 - $44.64
4% of jobs
$44.64 - $47.53
3% of jobs
$15
$29
$47
| Aspect | Wastewater Collection System Operator | Wastewater Treatment Plant Operator |
|---|---|---|
| Certifications | May require state-specific wastewater collection licenses | Often requires wastewater treatment operator certifications |
| Work Environment | Fieldwork in sewer systems, manholes, and pipelines | Plant-based, working with treatment equipment and processes |
| Industry Usage | Used in municipal and industrial sewer systems | Used in wastewater treatment facilities |
While both roles involve working with wastewater, the Wastewater Collection System Operator focuses on maintaining and operating sewer collection systems, often outdoors and in the field. In contrast, the Wastewater Treatment Plant Operator manages treatment processes within a facility. Both roles require specialized certifications and are essential in wastewater management, but they differ in work environment and specific responsibilities.

$101K - $180K/yr
Full-time
Re-posted 13 days ago
Who We Are:
West Yost is a water resource management and engineering firm focused exclusively on water. Since our founding in 1990, we have partnered with public agencies including cities, counties, utilities, and water districts to plan, design, and deliver water, wastewater, and stormwater solutions that support safe, reliable, and resilient communities.
Our team of more than 260 professionals brings together expertise in groundwater, water supply, treatment, infrastructure, recycled water, stormwater, construction management, and operations technology. We support projects from early planning and permitting through design and construction and complement our engineering services with program management and public outreach to help clients move work forward and engage their communities.
We are proud to be certified as a Great Place to Work®, and to be recognized among Fortune’s® Best Workplaces in Consulting and Professional Services from 2023 to 2025, as well as a top-ranked firm in the AEC Advisors Diversity Index. At West Yost, we are committed to being the water firm of choice for our clients and our team, advancing water resources for future generations through strong partnerships, practical solutions, and a shared commitment to quality.
Compensation range: $101,325 to $180,915. Based on our Davis, CA office location. (West Yost uses geographic salary differentials that would apply for candidates in other regions).
LOCATION: Can sit in any of our CA or OR office locations - (https://www.westyost.com/locations/ ).
This is a Hybrid role with 3 days in the office and 2 days remote.
Senior - Principal Engineer - Wastewater Collection System Planning
The Senior - Principal Engineer role will contribute to the development of the firm’s Water Business Sector (which encompasses water system, water resource, recycled water, and collection system planning). Previous experience with Wastewater Collection System Planning/Hydraulic Modeling is required, including master planning, infiltration and inflow analysis, flow monitoring, risk assessments, alternatives analysis and development of capital improvement plans. Candidates with a desire to develop their career toward technical leadership, client service management, and/or regional/sector management are ideal.
Key Responsibilities & Functions:
Required Qualifications:
Preferred Qualifications:
Travel Requirements:
This position may require travel to other offices and/or client offices.
A Little About the West Yost Life:
You will experience many opportunities to grow and develop professionally with your colleagues through collaborative in-person work experience, knowledge sharing, and mentorship opportunities. We also offer hybrid and flexible work schedules to our employees to help promote and encourage a healthy work/life balance. All of our team members have access to local and company-wide events, our Diversity, Equity and Inclusion Workgroup, Culture Workgroup, Wellness Workgroup, book clubs, charitable giving and community service, firm-wide resources, peer groups (young professionals & middlers group), and mentorship and leadership programs. We support and foster your career success and encourage you to be in control of your future with us.
At West Yost, we make space for connection across the firm. Each month, we hold an all-hands meeting that bring together team members from every location, including those working remotely, to stay aligned and engaged. Individual sectors and teams also hold their own monthly meeting. At the local level, our offices host gatherings, from camping trips and river rafting to community events and celebrations.
Once a year, we come together in person for our Annual All Staff event, a firmwide experience focused on learning, networking, and building relationships across teams. That evening, we continue our longest-standing tradition, the Duck Dinner, where West Yosters are encouraged to bring a guest and enjoy a night of great food, connection, and entertainment.
We work hard, and we place equal value on having fun.
Our commitment to quality begins with our hiring practices. We employ the most talented team members in our industry from all backgrounds. We are highly selective of the individuals we choose to represent the firm, seeking only those individuals whose technical abilities and commitment to client service matches our vision for excellence. We are dedicated to our number one asset, our employees. Because we are employee-owned, we are responsible for and rewarded by our own success. Come to West Yost where, with our support, you’ll do the best work of your life.
Standard Benefits:
We provide a comprehensive array of valuable benefits to protect your health, your family, and your way of life. Benefits include medical, dental, vision, flexible spending accounts, health saving accounts (with West Yost contribution), paid vacation, paid sick leave and holidays, two employee assistance programs, travel assistance program, 401(k) profit sharing with employer match, leaves of absence with additional supplemental paid time off, parental leave, life and AD&D insurance, short-term and long-term disability insurance, and even pet insurance.
Other Unique Benefits:
You’ll be provided with support in on-going education through our 529 college savings plan/student loan repayment program, tuition reimbursement, paid professional memberships, paid training, and Leadership Academy programs. You’ll be recognized for your contributions at West Yost through milestone anniversary benefits, peer to peer recognition programs, the potential for employee stock ownership, annual monetary and paid time off bonuses, performance-based bonus eligibility, merit increase eligibility, and employee referral bonuses. We also offer a wellness reimbursement.
We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.
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Civil engineering construction
201 - 500 Employees
Davis, CA, US
1990