Hydrogeologist Jobs in California

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AECOM is seeking a self-motivated Geologist or Hydrogeologist III in our Long Beach, CA office to support a variety of environmental projects including site investigation and remediation programs throughout the Los Angeles Basin. The successful candidate will prepare and execute work plans to collect and analyze geological, hydrogeological, and geochemical data. The field activities will consist of soil, groundwater, surface water, sediment, air, and soil vapor sample collection, geological logging and interpretation, and the oversight of subcontractors including excavation, drilling, well construction, aquifer testing, and well rehabilitation. The office activities will involve planning, task management, and preparation of site investigation and remediation progress reports. Flexibility to work on a multitude of diverse projects, a positive attitude, willingness to mentor junior staff, and commitment to workplace health and safety are imperative.

JOB RESPONSIBILITIES:

• Support site characterization, subsurface investigation, and remediation activities.
• Collect, evaluate, and interpret geological, hydrogeological, and geochemical data in field and office settings.
• Plan, conduct, and supervise fieldwork, including:
  • Stakeholder engagement, team communication, and coordination of logistics.
  • Subcontractor coordination oversight.o Conduct due diligence for utility clearance.
  • Soil and bedrock drilling, characterization, and sampling.
  • Monitoring well (groundwater and soil vapor) installation.
  • Soil, sediment, soil vapor, sanitary system, surface water, and groundwater sampling.
  • Surface and borehole geophysical techniques.
  • Aquifer testing (e.g., slug tests, packer testing, step-drawdown, tracer tests).
• Remedial systems performance monitoring:
  • Prepare and/or task-manage plans, permits, and reports for hazardous waste, air quality, stormwater, and wastewater programs.
  • Perform and/or task-manage Phase I and II Environmental Site Assessments.
  • Provide environmental compliance support to clients, including on-site assistance as needed.
  • Support Project Managers to deliver within scope, budget, and schedule, ensuring quality standards on all deliverables.
  • Communicate clearly with subcontractors, regulators, and clients during field and office activities.
  • Apply scientific principles, theories, and practices to develop practical solutions to complex problems.
  • Interpret and record data, conduct analyses, and compare findings to applicable local, state, and federal regulations to ensure compliance.
  • Work under general direction, independently determining and developing approaches to problem-solving.
  • Solve problems using standard procedures and modifications based on prior assignments.
  • Perform inspections and tests to verify regulatory and project compliance.
• Mentor junior staff and contribute to team knowledge sharing.
• Champion health and safety by participating in hazard recognition, project activity planning, and H&S planning and oversight.
• Travel up to 25% to various sites, as project needs require.
• Data management, report preparation and coordination with technical team.

MINIMUM REQUIREMENTS:

• BA/BS or similar.
• 4 years of relevant experience or demonstrated equivalency of experience and/or education in environmental investigation and remediation.
• A valid driver’s license is required, along with the ability to pass a Motor Vehicle Records (MVR) check in accordance with company policy.
• US Citizen or US Permanent Resident.

PREFERRED QUALIFICATIONS:

• 6+ years of environmental investigation and remediation experience.
• California GIT and/or PG license
• Strong technical report writing skills; ability to lead preparation of investigation and compliance reports.
• Proficiency with Microsoft Office Suite (e.g., Excel, Word, PowerPoint).
• 40-hour OSHA HAZWOPER with current 8-hour refresher.
• 30-hour OSHA Construction Supervisory certificate.
• Current First Aid/CPR certification.

At AECOM, we are committed to maintaining a secure and trustworthy recruitment process and take any fraudulent hiring activity seriously. To support this commitment, all newly hired employees are required to attend an in-person Day 1 onboarding at an AECOM office location as a condition of employment.

About AECOM

AECOM is proud to offer comprehensive benefits to meet the diverse needs of our employees. Depending on your employment status, AECOM benefits may include medical, dental, vision, life, AD&D, disability benefits, paid time off, leaves of absences, voluntary benefits, perks, flexible work options, well-being resources, employee assistance program, business travel insurance, service recognition awards, retirement savings plan, and employee stock purchase plan.

AECOM is the global infrastructure leader, committed to delivering a better world. As a trusted professional services firm powered by deep technical abilities, we solve our clients’ complex challenges in water, environment, energy, transportation and buildings. Our teams partner with public- and private-sector clients to create innovative, sustainable and resilient solutions throughout the project lifecycle – from advisory, planning, design and engineering to program and construction management. AECOM is a Fortune 500 firm that had revenue of $16.1 billion in fiscal year 2025. Learn more at aecom.com.

What makes AECOM a great place to work

You will be part of a global team that champions your growth and career ambitions. Work on groundbreaking projects - both in your local community and on a global scale - that are transforming our industry and shaping the future. With cutting-edge technology and a network of experts, you’ll have the resources to make a real impact. Our award-winning training and development programs are designed to expand your technical expertise and leadership skills, helping you build the career you’ve always envisioned. Here, you’ll find a welcoming workplace built on respect, collaboration and community—where you have the freedom to grow in a world of opportunity.

As an Equal Opportunity Employer, we believe in your potential and are here to help you achieve it. All your information will be kept confidential according to EEO guidelines.