Risk Assessor II

HydroGeoLogic, Inc•Reston, VA

3d•$96,480 - $144,720•Hybrid

About The Position

HGL is seeking a Risk Assessor II to support environmental projects, including hazardous, toxic, and radioactive waste; PFAS; mining; and military munitions response program projects nationwide. The Risk Assessor II will prepare human health risk assessments and/or ecological risk assessments in accordance with CERCLA, RCRA, and applicable state guidance, with support from HGL’s risk assessment team, including senior- and principal-level staff. The ideal candidate can lead both human health and ecological risk assessments; candidates with strong experience in either discipline will also be considered. This role is well suited for a self-directed individual who enjoys integrating complex environmental data, technical analysis, and regulatory requirements to support sound project and remedial decisions. HGL is seeking to fill one hybrid position based out of our Reston, VA office.

Requirements

Bachelor’s degree in toxicology, environmental science, public health, engineering, or a related health or environmental science discipline.
At least 6 years of work experience in an environmental consulting or regulatory environment on DoD or EPA projects, with a focus on site investigation and human health or ecological risk assessment; or an equivalent combination of education and experience.
Experience implementing EPA’s Risk Assessment Guidance for Superfund and/or EPA’s Ecological Risk Assessment Guidance for Superfund.
Working knowledge of relevant federal regulations, especially CERCLA and RCRA, and the ability to integrate federal requirements with varying state regulations.
Ability to present technical information effectively to scientific, regulatory, and public audiences.
Ability to succeed in a fast-paced consulting environment, manage multiple project assignments, meet strict deadlines, travel to client facilities as needed, and work independently as a self-starter.
Demonstrated ability to learn and adopt new technologies and digital tools to improve project delivery and operational efficiency.

Nice To Haves

Advanced degree (MS, MPH, or PhD) in toxicology, environmental science, public health, engineering, or a related health or environmental science discipline.
Experience completing statistical comparisons of site data to background data and geochemical evaluations to distinguish site-related contaminants from background constituents.
Experience in technical areas beyond risk assessment—such as contaminant fate and transport, analytical chemistry, characterization of the nature and extent of contamination, or development of remediation strategies—to support integration across project teams.
Experience designing and leading baseline ecological risk assessments that include collection of site-specific data, such as biota tissue, toxicity testing, bioaccumulation studies, or habitat and/or species surveys.
Experience in blood lead modeling to support human health risk assessments.
Familiarity with environmental databases, primarily LOCUS, and statistical software.
Experience using generative AI tools (e.g., Microsoft Copilot, ChatGPT, Claude, or similar) to improve technical writing, data analysis, research, visualization, or project delivery efficiency.

Responsibilities

Manage and analyze large environmental datasets.
Prepare tables, figures, and other data exhibits.
Author risk assessments, risk assessment work plans, and other technical deliverables.
Review and interpret environmental and toxicological studies and reports.
Support remedial strategy design, including development of risk-based cleanup levels.
Conduct statistical analyses, including statistical comparisons of background data to site data.
Serve as the project risk assessor in project meetings and technical discussions with clients, regulatory agencies, and stakeholders.
Lead and provide technical direction to junior-level staff.