Model fixes before anything's built
Model the water network, find where pressure drops, and see whether a pipe or pump change helps.
Career profile
Water and Wastewater Engineer
Water/wastewater engineers design pipes, pumps and treatment for drinking water and releasing or reusing wastewater.
Why does water pressure sag in just one neighborhood? A software model lets you test the likely causes, then figure out which fixes would help.
A day in the life
Chase a drop in treatment
Set lab results beside plant logs, and when they worsen, study the process with operators and test fixes.
Pick an upgrade option
Weigh treatment methods and equipment against water-quality rules and cost, then recommend one for the plant upgrade.
Draw plans and write specifications
Map pipe routes and equipment details in drawing software, then write specifications telling contractors what to build.
Send pointed comments to designers
In regulatory jobs, you check proposed treatment plans against permits and flag calculations or equipment to fix.
Quick facts
Usually a bachelor's degree
United States
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Salary ranges differ by role and location.
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Water-system repairs and treatment upgrades create project work, while public funding affects which projects move ahead.
Quick orientation
Preparation, pay & outlook
Preparation
Usually a bachelor's degreeEngineering study provides the usual foundation for this work.
Pay
Not displayedSalary ranges differ by role and location.
Outlook
Not displayedWater-system repairs and treatment upgrades create project work, while public funding affects which projects move ahead.
Fit, tradeoffs & changing tools
You might like this if…
- You like using math to explain why a physical system is behaving strangely.
- You enjoy checking a proposed design against measurements.
- You can explain a technical choice to someone who will operate the equipment.
Things to weigh
- Much of the work happens at a desk, checking calculations and working through documents.
- Project deadlines can stretch the workweek, especially when you are responsible for keeping a design on schedule.
- Plant visits can involve noise, stairs, and exposure to biological or chemical hazards.
Where AI may help
Software calculates pipe pressure and pumping energy. Drinking-water modeling tools can also connect models to live operating data.
What people still lead
You judge whether equipment will fit the plant's needs and work through design questions with operators and construction staff.
What we can’t predict yet
How far automated analysis will take over choosing designs remains uncertain, especially when actual system behavior differs from the model.
Pay in context
Earnings
These national benchmarks cover civil engineers broadly, including water and wastewater engineers. They give you context for comparing jobs, rather than a specialty-only estimate or a starting-pay promise.
National pay and spread
Median pay was $100,840 a year ($48.48 an hour). The lowest-paid 10% earned below $68,240; the highest-paid 10% earned above $163,220. These thresholds describe the workforce, not career stages.
Pay across workplaces
Annual medians were $100,620 in engineering services, $102,440 in state government, and $113,640 in local government. Government figures exclude education and hospitals; these comparisons cover all civil-engineering specialties.
Projected openings
Civil-engineer employment is projected to grow 6%, with about 22,700 openings a year on average. Many openings replace people leaving the occupation or retiring.
Getting started
Build the engineering foundation
- What the route involves
- Complete an engineering bachelor's degree. Civil and environmental engineering are common choices for water work.
- What it can lead to
- Meet the degree requirement for many junior roles and learn the mathematics behind design calculations.
- What to check
- For the usual licensure route, check for Engineering Accreditation Commission accreditation through ABET, formerly the Accreditation Board for Engineering and Technology.
Join a junior water-design team
- What the route involves
- After your engineering degree, prepare calculations and construction drawings alongside experienced staff.
- What it can lead to
- Build experience connecting a design on screen with field conditions and construction requirements.
- What to check
- Entry jobs generally do not require a Professional Engineer license. Your early work is reviewed by experienced engineers.
The usual sequence is an engineering degree followed by a junior engineering job. Internships can add practical experience during college.
After entry
Career paths
This starts where the entry routes leave off: early work, growing capability, and advancement or specialization. This path also has a credential or licensing boundary; see the requirements and limits.
Get established
Learn to produce calculations and drawings that others can check, and connect them with what you observe in the field.
Carry a design further
Take an equipment recommendation through design review, contractor questions, and testing after installation.
Lead or specialize
With experience and applicable licensure, lead a treatment-upgrade project, guide junior engineers, or develop deeper expertise in treatment equipment and processes.
Where you can work
Engineering consulting firm
You prepare designs and construction documents for clients, then check work in the field. Some roles include extended travel to project sites.
- Office
- Field work
- Travel
Water or wastewater utility
In a treatment-process role, you stay close to an operating plant, working with operators on performance problems and improvements to existing equipment.
- Office
- Field work
- Safety-sensitive
State environmental agency
Your work centers on reviewing proposed facilities, resolving technical questions with designers, and inspecting treatment sites for compliance.
- Office
- Field work
Try it
See whether the job clicks before you commit to the path.
Sketch a water tank supplying three streets through pipes. Imagine water use doubles on one street. Mark where you would want pressure measurements, then compare a larger pipe with added storage. Write what you would need to know before choosing. Notice whether turning a service problem into design questions interests you.
Sources
- O*NET OnLine. Water/Wastewater Engineers — 17-2051.02. Accessed 2026-10-04.
- U.S. Bureau of Labor Statistics. Civil Engineers — Occupational Outlook Handbook. Accessed 2026-10-04.
- U.S. Bureau of Labor Statistics. Occupational Projections and Worker Characteristics. Accessed 2026-10-03.
- U.S. Environmental Protection Agency. EPANET. Accessed 2026-10-03.
- U.S. Environmental Protection Agency. Enhancements to the EPANET-RTX (Real-Time Analytics) Software Libraries-2015. Accessed 2026-10-03.
- Iowa Department of Natural Resources. Environmental Engineer — Wastewater, 26-03464. Accessed 2026-10-03.
- King County. Wastewater Process Engineer II, 2026-26208. Accessed 2026-10-03.
- Kenvirons. Civil Engineer — Water & Wastewater. Accessed 2026-10-03.
- City of San José. Sanitary Engineer, 202501357. Accessed 2026-10-03.
- National Council of Examiners for Engineering and Surveying. Licensure. Accessed 2026-10-03.
- National Council of Examiners for Engineering and Surveying. Fundamentals of Engineering Exam. Accessed 2026-10-03.
- ABET. About ABET. Accessed 2026-10-03.