Geo-Logic Associates conducts comprehensive site investigations to characterize environmental impacts in soil, soil vapor, indoor air, and groundwater under state, local, and federal regulatory programs. We collect and analyze field data to develop high-resolution conceptual site models that support risk evaluation, remedial planning, and regulatory decision-making. Our multidisciplinary teams perform soil vapor assessments, indoor air sampling, drilling and subsurface investigations, monitoring well installation, groundwater sampling, and analytical testing for a wide range of contaminants. Geo-Logic Associates has completed site investigation programs in diverse geologic and hydrogeologic settings across the United States and internationally, including:

Geo-Logic Associates helps clients navigate the complex regulatory requirements of CERCLA (Superfund) and RCRA programs. Our team supports all phases of site assessment, investigation, remediation, compliance, and long-term stewardship for industrial, government, and commercial facilities.  We are fully versed in all steps of the state and federal Superfund process from National Priorities List (NPL) ranking, preliminary assessment/site inspections (PA/SI), remedial investigation/feasibility studies (RI/FS), remedial design/action (RD/RA), and to 5-year remedy reviews and ongoing operations support. We are also experienced in Resource Conservation and Recovery Act (RCRA) regulations and the RCRA processes governing active industrial operations and waste generation. Geo-Logic Associates has completed RCRA Facility Investigation (RFI) reports and Corrective Measures Studies (CMS) for multiple facilities. Our work for clients includes:

As a member of the National Ground Water Association (NGWA) PFAS Working Group, Geo-Logic Associates remains actively engaged in advancing PFAS science and best practices. Our professionals have presented on PFAS science and environmental forensics for Law Seminars International (LSI), NGWA, and the American Ground Water Trust (AGWT).

Geo-Logic Associates has built a reputation for delivering innovative, technically sound, and cost-conscious remediation solutions. We design, install, operate, and maintain remediation systems ranging from targeted excavations to complex multi-media extraction and treatment programs.

Our team provides complete remediation services, including remedy planning, pilot testing, design, installation, operation, and performance evaluation. We have successfully addressed contaminants in soil, soil vapor, and groundwater, including metals, radionuclides, petroleum hydrocarbons, chlorinated solvents, PCBs, pesticides, nitrate, pharmaceuticals, PFAS, 1,4-dioxane, perchlorate, MTBE, and other emerging contaminants.

From feasibility studies and remedial action planning to in-situ and ex-situ treatment, vapor intrusion mitigation, and third-party remedy evaluations, Geo-Logic Associates develops practical, site-specific solutions that support regulatory compliance and long-term project objectives.

Technologies we have implemented or evaluated include:

Long-term operation, maintenance, and monitoring programs play a critical role in remediation performance, regulatory compliance, and site closure. Geo-Logic Associates provides comprehensive monitoring, reporting, and system management services for groundwater, soil, soil vapor, stormwater, surface water, and other environmental media.

Our engineers and technicians operate, troubleshoot, and maintain a wide range of remediation systems and specialty instrumentation. We manage large-scale monitoring programs involving hundreds of sampling locations and thousands of data points while working closely with clients and regulators to support compliance and project objectives.

Geo-Logic Associates integrates GIS, database development, software applications, and data visualization to help clients manage, analyze, and communicate complex environmental data. Our team transforms large datasets into meaningful insights through interactive maps, 3D models, visualizations, dashboards, and custom applications that support technical analysis, regulatory reporting, litigation support, and stakeholder communication.

We also develop GIS-enabled web and desktop applications that automate workflows, improve data accessibility, and enhance decision-making. Our proprietary GLA-Data platform provides customized, web-based dashboards designed to meet the unique needs of data-intensive projects. Our expertise includes:

Geo-Logic Associates performs all aspects of environmental and natural resource studies, from biological assessments and habitat evaluations to USACE jurisdictional determinations, Clean Water Act permitting, cultural resource services, environmental impact studies, and watershed management. Our team helps clients navigate complex environmental regulations and permitting requirements while balancing project objectives with resource stewardship.

Our work includes species surveys, conservation planning, wetland delineations, threatened and endangered species evaluations, low-impact development studies, mudflow and debris-flow assessments, wildfire impact studies, forest management, and watershed restoration.

Regulatory expertise includes: