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What are the key skills and qualifications needed to thrive as a Water Quality Modeler, and why are they important?

To thrive as a Water Quality Modeler, you need a solid background in environmental science or engineering, strong analytical skills, and experience with hydrology and water chemistry. Familiarity with modeling software such as SWAT, HEC-RAS, or QUAL2K, as well as GIS applications and relevant certifications, is typically required. Excellent problem-solving, communication, and teamwork skills help convey complex findings and collaborate on multidisciplinary projects. These competencies are crucial for accurately assessing water systems, informing policy or remediation, and ensuring environmental and public health.

What are some common challenges faced by professionals working in water quality modeling, and how can they be addressed?

Professionals in water quality modeling often encounter challenges such as handling incomplete or inconsistent data, adapting models to diverse environmental conditions, and communicating technical findings to non-specialist stakeholders. Addressing these requires strong data management skills, continuous learning about new modeling techniques, and effective collaboration with field scientists and policymakers. Additionally, keeping up with regulatory changes and advancements in modeling software can help ensure reliable and actionable results.

What is water quality modeling?

Water quality modeling is the process of using mathematical and computational techniques to simulate how water pollutants move and change within rivers, lakes, reservoirs, and groundwater systems. These models help scientists and engineers predict the impacts of human activities, such as agriculture or industrial discharge, on water quality. Water quality models are essential tools for managing water resources, developing pollution control strategies, and complying with environmental regulations.

What is the difference between Water Quality Modeling vs Water Treatment Plant Operator?

AspectWater Quality ModelingWater Treatment Plant Operator
CredentialsEnvironmental or Civil Engineering degree, certifications in modeling softwareHigh school diploma or equivalent, state licensing
Work EnvironmentOffice, laboratory, field data analysisWater treatment facilities, plant operations
Industry UsageDesigning models, analyzing water quality dataOperating treatment equipment, ensuring water safety

Water Quality Modeling focuses on creating simulations to predict water quality changes, while Water Treatment Plant Operators manage daily operations of water treatment facilities. Both roles require understanding water systems but differ in their primary tasks and work settings.

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Water Quality Modeling jobs near you
Infographic showing various Water Quality Modeling job openings in the United States as of May 2026, with employment types broken down into 20% Internship, 60% Full Time, and 20% Part Time. Highlights an 80% In-person, and 20% Remote job distribution.
Water Quality Modeling Engineer/Water Resources Engineer

Water Quality Modeling Engineer/Water Resources Engineer

Hazen and Sawyer

Dallas, TX • On-site

$73.70K - $100.80K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 17 days ago

Job description

Hazen and Sawyer is seeking an experienced candidate with interests and expertise related to stream and lake hydrodynamics and receiving water quality modeling (temperature, DO, nutrients, eutrophication, stratification), quantitative assessment of NPDES discharge permit limits, and watershed pollutant loading to join our growing water resources practice.

The candidate should have a background in one or more of the following disciplines: water quality, water resources engineering, limnology, hydrology, and H&H modeling. We prefer candidates who have a strong background in lake, river and estuarine water quality modeling, but skills in the other disciplines would be useful. Experience with programming tools such as R and Python is desirable, as is competency in GIS. Additionally, the candidate should have experience managing planning, modeling, and/or engineering tasks.

Our group operates with the philosophy that effective water resources solutions balance economic, social, and environmental needs to achieve resilient and sustainable results. Our team is passionate about solving complex water-related issues, and we regularly interface with other engineering disciplines. Our ideal candidate will be capable of collaborating internally with Hazen colleagues and externally with clients and stakeholders while working independently and productively from both home and in office.

Why Hazen and Sawyer:

  • Founded in 1951 by the son of Allen Hazen (developer of the Hazen-Williams equation), we are an employee-owned company with a singular focus on "all things water."
  • Our work includes planning, design, and oversight of construction of environmental infrastructure – for water, wastewater, and stormwater management.
  • We foster a work environment low on bureaucracy and high in creativity.
  • We recruit talented professionals, provide them with challenging, interesting, and creative assignments, and furnish them with the tools they need to succeed.
  • We currently have over 2,000 employees in 80+ offices throughout the United States, Latin America, Canada, and the UK.

Our ideal candidate can demonstrate sufficient experience managing projects and tasks, issuing deliverables, and coordinating with similarly skilled technical staff with minimal supervision. The candidate will support work across the Midwest and South Central regions of Hazen.

Key Responsibilities:

  • Develop, analyze, interpret, summarize, and present water quality and water resources data;
  • Build, calibrate, run, and describe models used in the analysis of water quantity and quality;
  • Analyze, interpret, and develop water quality model results and maps;
  • Deliver presentations at public meetings, workshops, conferences, and client meetings;
  • Support proposal development and estimate budgets;
  • Support a large team of individuals working on complex water quality models
  • Participate in field data collection efforts.

Required Qualifications:

  • Degree from four-year college or university with BS in engineering, water resources, or closely related subject;
  • Master’s degree in civil engineering, environmental engineering, water resources engineering, limnology, or similar;
  • 3 to 8 years of experience in water quality modeling, H&H modeling, and permitting;
  • Proficiency with MS-Excel, Python, R or similar processing or scripting tools;
  • Familiarity with QGIS, ESRI-GIS products, or similar;
  • Experience with water quality, hydrologic and hydraulic modeling tools, such as CE-QUAL-W2, SWAT, EFDC, HSPF, QUAL2K, Mike-SHE, etc. Experience with all examples listed is not expected.
  • Familiarity with water quality monitoring and analysis instrumentation and/or data collection methods;
  • Professional Engineer’s license, or ability to obtain soon; and
  • US Citizenship, or proof of legal right to work in the US.

What We Offer:

  • Comprehensive health benefits (medical, dental, vision, and prescription plans)
  • Pre-tax flexible spending plans for medical, dependent care, and transportation
  • Short and long-term disability, and employer paid life insurance
  • Paid holidays, floating holidays, and paid time off (PTO)
  • Employer-contributed 401(k) plan and additional financial planning support
  • Professional growth opportunities, including tuition reimbursement, in-house training, and incentives for professional registration and professional organization memberships
  • Starting pay range for this position depends on skills, experience, education and geographical location
HAZEN AND SAWYER logo

About HAZEN AND SAWYER

Sourced by ZipRecruiter

Hazen and Sawyer, headquartered in New York, NY, US, operates within the field of environmental science and engineering. Founded in 1951, the firm specializes in designing drinking water, wastewater, and stormwater facilities, comprehensive solid waste services, and other environmental infrastructure projects. Striving towards nurturing clean, safe water supply, the company upholds it as its primary mission. Their dedication reflects in their numerous honors received at the national and regional levels, including awards from the American Society of Civil Engineers, American Council of Engineering Companies, and Water Environment Federation.

Industry

Environmental consulting services

Company size

501 - 1,000 Employees

Headquarters location

New York, NY, US

Year founded

1951

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