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Water Quality Modeling Jobs in California (NOW HIRING)

Water Reuse Engineer

Los Angeles, CA · On-site

$85K - $116K/yr

The ability to conduct analyses, modeling and designs and to produce engineering deliverables like ... Evaluate treatment approaches for water quality parameters, including constituents of emerging ...

Water Reuse Engineer

Irvine, CA · On-site

$84K - $116K/yr

The ability to conduct analyses, modeling and designs and to produce engineering deliverables like ... Evaluate treatment approaches for water quality parameters, including constituents of emerging ...

Water Reuse Engineer

San Diego, CA · On-site

$83K - $114K/yr

The ability to conduct analyses, modeling and designs and to produce engineering deliverables like ... Evaluate treatment approaches for water quality parameters, including constituents of emerging ...

Water Reuse Engineer

Walnut Creek, CA · On-site

$88K - $120K/yr

The ability to conduct analyses, modeling and designs and to produce engineering deliverables like ... Evaluate treatment approaches for water quality parameters, including constituents of emerging ...

Water Reuse Engineer

Rancho Cordova, CA · On-site

$84K - $115K/yr

The ability to conduct analyses, modeling and designs and to produce engineering deliverables like ... Evaluate treatment approaches for water quality parameters, including constituents of emerging ...

Analyzing flow, demand, population, water quality, and facilities condition data * Performing ... Experience with modeling software applications such as InfoWater, InfoSewer, InfoWorks ICM ...

Analyzing flow, demand, population, water quality, and facilities condition data * Performing ... Experience with modeling software applications such as InfoWater, InfoSewer, InfoWorks ICM ...

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Water Quality Modeling information

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 are the key skills and qualifications needed to thrive as a water quality modeler?

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 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.

What job categories do people searching Water Quality Modeling jobs in California look for?

The top searched job categories for Water Quality Modeling jobs in California are:

What cities in California are hiring for Water Quality Modeling jobs?

Cities in California with the most Water Quality Modeling job openings:

Infographic showing various Water Quality Modeling job openings in California as of August 2026, with employment types broken down into 1% As Needed, 85% Full Time, 10% Part Time, 3% Contract, and 1% Nights. Highlights an 86% Physical, 2% Hybrid, and 12% Remote job distribution.

Water Quality Analyst I (50.26)

American States Water Company

San Dimas, CA • On-site

$29.36 - $47.09/hr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 16 days ago


Job description

Golden State Water Company is one of the largest investor-owned water utilities in the United States. We deliver quality, reliable water to more than 1 million people in over 80 communities throughout California. Golden State Water has been in business for more than 90 years because we put customers first.
POSITION DEFINITION:
The incumbent in this position is a part of the Water Quality Team and maintains databases, manages records, and tracks compliance. The Analyst is also responsible for preparing reports from databases to support the daily activities and long-term goals of the department.
Accountability
• Performs tasks to implement, maintain and comply with all water quality and environmental regulations and programs within the district
• Assists in the preparation of reports for compliance purposes that may include but not be limited to: State Water Resources Control Board - Division of Drinking Water (DDW) Annual Report, Consumer Confidence Report, Public Health Goal Report, NPDES report, etc.
• Researches technical documents and assists in conducting water quality studies to achieve business objectives and goals
• Maintains water quality and environmental databases
• Maintains water quality monitoring schedules and tracks samples and laboratory reports.
• Conducts data analysis, summarizes data with tables and graphs, and prepares reports and/or presentations as directed by the Water Quality Engineer or Water Quality Manager
• Coordinates document management of records, reports, and regulatory correspondence
• Maintains Cross-Connection Control Program. This may include maintaining administration functions and/or functions as performed by a Cross Connection Control Specialist (conducting surveys and making decisions related to backflow protection requirements). May be required to obtain Cross Connection Control Specialist certification and conduct field work
• Uses hydraulic modeling to develop flushing plans using ArcGIS
• Coordinates meetings, agendas, action items and project schedules
• Maintains organized compliance records and tracking system.
• Initiates corrective action for procedural, product, or process deficiencies.
• Manages database and prepare procedures and protocol for database entry.
• Performs other duties as assigned
Skills and Competencies
• Analytical and attentive to details
• Able to analyze data, make observations, and draw preliminary conclusions
• Able to perform QA/QC on database and make necessary corrections
• Able to conduct data analysis, summarize data with tables and graphs, and prepare reports and/or presentations
• Skilled in the use of computer systems, business software, cloud-based applications, and digital communication tools such as Microsoft Teams to perform assigned duties
MINIMUM QUALIFICATIONS
• High school diploma or equivalent
• Bachelor's degree in engineering, environmental sciences, chemistry, biology, or related discipline strongly preferred
• Two years of progressively responsible experience in three or more of the following areas: water quality, environmental regulations, compliance tracking, database management, data analysis, cross connection control, hydraulic modeling, and reporting writing
• A Bachelor's Degree can substitute for the required experience
• Familiarity with local, state, federal environmental regulations or safety practices preferred
• Strong communication skills, both verbal and written
Qualities / Core Competencies:
• Familiar with database management and able to perform data query
• Good organizational skills
• Attentive to details
• A team player
• Excellent critical and analytical thinking skills
• Excellent problem-solving abilities
May include but not limited to standing, climbing, walking, lifting, bending, pulling and/or pushing, grasping, reaching, stooping and crouching, sitting, typing, walking, reading, writing, color determination, speaking and listening for extended periods of time.
BENEFITS
Our Company supports our employees with rich benefit programs and resources to help them thrive today and prepare for tomorrow. Benefit options include medical, dental, and vision plans with the Company currently paying 85% of the monthly premium for employees and their eligible dependents. We also offer paid vacation and sick time and twelve Company paid holidays per year. To help our employees plan for the future, we offer both a 401(k) retirement plan as well as a Defined Contribution Profit Sharing retirement plan. Additional benefits include life, AD&D, and LTD insurance as well as health savings account and flexible spending plans.
COMPENSATION INFORMATION
The compensation range provided is in compliance with state specific laws. Multiple factors are used to determine the actual starting rate of pay for all of our positions, including specific skills, years of experience, education, certification(s), and other job related factors.
The responsibilities of this position will involve access to information that may be considered confidential, private and sensitive. Therefore, the individual filling this position will be required to both allow and pass a background check.
NOTE: Reasonable accommodations will be made to enable individuals with special needs to perform the essential functions.