J.S. Held adquiere GLI Advisors para fortalecer sus servicios de apoyo a proyectos de construcción en el oeste de EE. UU. y Hawái
LEER MÁSWe deliver turnkey environmental investigation and remediation services that address environmental risk and cleanup from initial assessment through regulatory closure.
J.S. Held es reconocida como líder de la industria en el informe Green Quadrant de Verdantix por consultoría en gestión de riesgos empresariales.
Our approach combines specialized expertise in both environmental investigation and remediation to deliver integrated, sustainable solutions that resolve environmental issues, support complex litigation and disputes, inform insurance and corporate risk decisions, and achieve regulatory closure. We conduct site assessments and air, vapor, soil, groundwater, and surface water sampling to evaluate environmental conditions and identify risk drivers, including PFAS and other emerging contaminants. Based on our findings, we design and implement remediation strategies, alternatives, and corrective-action plans that support long-term performance and regulatory compliance.
J.S. Held experts conduct environmental investigation services that identify risks and define clear next steps for clients managing environmental releases, planning site redevelopment, navigating regulatory compliance, or involved in complex legal disputes and litigation. We provide specialized expertise to characterize conditions, confirm impacts and risks, and deliver insight necessary for remediation planning and execution.
Our environmental assessments evaluate chemical releases and spills, soil contamination, groundwater and surface water contamination, vapor intrusion, the presence of hazardous or regulated materials, ecological impacts, and emerging contaminants, including PFAS. Our field programs include environmental sampling across air and vapor, soil, groundwater, and surface water to define the nature and extent of impacts. Our analyses help clarify source areas, migration mechanisms, and exposure pathways for informed strategic planning and decision-making.
Further, when natural resources and habitats may be impacted by operations on the site, we provide ecological remediation and restoration guidance, aligning cleanup objectives with restoration requirements and stakeholder expectations. Our investigative findings support project planning and achieving regulatory closure, including remediation sequencing decisions, redevelopment timelines, and additional considerations when PFAS assessments and PFAS remediation must be evaluated within a broader corrective action strategy.
Our experts leverage decades of experience in environmental law, engineering, and scientific disciplines to provide environmental litigation support, advisory services, and expert witness testimony.
Ofrecemos orientación técnica a los asesores legales para formular estrategias de litigio, elaborar documentos previos al juicio y para el juicio, gestionar las pruebas escritas y proporcionar dictámenes periciales. Cuando nos lo solicitan, preparamos informes periciales exhaustivos sustentados en hechos y datos defendibles, prestamos declaraciones y testimonios periciales, y ayudamos a los clientes a preparar presentaciones y demostraciones convincentes y probatorias en los juicios.
Nuestros expertos en litigios ambientales intervienen en asuntos que abarcan la concesión de permisos ambientales y el cumplimiento de la normativa; demandas colectivas ambientales; daños a los recursos naturales; determinaciones de responsabilidad empresarial y profesional; asignación de costos, contribución y recuperación, responsabilidad extracontractual por sustancias tóxicas proyectos de limpieza estatales y en el marco del programa Superfund; asuntos de seguros y resolución de conflictos internacionales.
Nuestros servicios de consultoría en litigios incluyen:
Determining the key factors that contributed to environmental damage is a central part of our environmental investigation and environmental remediation services. Our cause and origin investigations evaluate how environmental releases and contamination may have occurred, what mechanisms contributed to migration, and what site conditions influenced the extent of impact. We provide detailed analysis regarding the history of site operations, incident documentation, and the physical conditions that influence potential contaminant movement through air, soil, groundwater, and building environments.
Our expert reviews integrate operating history and document review with on-site observations and interpretation of field and laboratory data to connect observed conditions to plausible release pathways. Our evaluations help determine how contaminants may have moved, what conditions accelerated or limited migration, and whether observed patterns align with known activities, materials, or site changes over time.
When applicable, our analyses incorporate air sampling, soil contamination assessment, groundwater and surface water evaluation, and vapor intrusion testing. Our investigations address relevant issues regarding PFAS and other emerging contaminants, including review of potential source materials, transport mechanisms, and pathways for detection or distribution.
Our findings clarify the cause of contamination, source pathways, remediation planning and prioritization, and are used for regulatory closure, environmental claims consulting, and in legal disputes.
Our remedial feasibility studies help clients compare cleanup options with a clear understanding of remedial scope, regulatory requirements, expected performance, and estimated costs to complete. Our studies are informed by environmental investigation data to define the nature and extent of impacts and evaluate practical alternatives for addressing soil, groundwater, and other forms of contamination.
Our experts evaluate options against site-specific constraints including access, constructability, sequencing, and long-term operations and maintenance considerations, with attention to how different approaches may perform under the conditions present. When applicable, the analysis compares treatment, containment, removal, and monitored approaches to clarify tradeoffs and support selection of a remedy aligned with project objectives and regulatory expectations. These studies help guide remediation strategy and implementation, and are used in redevelopment planning, risk management decisions, and dispute-related decision making when cleanup approaches are contested.
When a remediation approach needs to be selected and defended, remedial strategy and alternatives analysis connects environmental investigation findings to a practical corrective action path. Our experts help clarify what factors are driving risk at the site, the outcomes that remediation must achieve, and the associated costs and impacts of each approach.
Our corrective action pathways are stress tested against site constraints and closure expectations, including access, utilities, adjacent receptors, schedule, and long-term operations and maintenance. The end product provides clarity on the ideal approach, practical alternatives that remain viable, and implementation guidance that aligns environmental remediation services with project planning and achieving regulatory closure.
Los proyectos de remodelación de sitios industriales pueden ser sumamente complejos, por lo que es imprescindible contar con una fuente de conocimientos in situ para dirigir el trabajo de principio a fin. Our multidisciplinary experience in remediation, site civil engineering, and vast knowledge of land development/redevelopment uniquely positions us to execute successful brownfield projects.
We help clients move brownfield redevelopment forward by aligning site due diligence, cleanup planning, and clearly defining how a property will be reused following redevelopment. Our work is designed to reduce the uncertainty that can stall acquisition, financing, design, and scheduling by clarifying current site conditions, regulatory expectations, and the cleanup approaches that fit the redevelopment plan. Our analyses support strategic redevelopment sequencing decisions and coordinating remediation activities with construction phasing and stakeholder requirements.
Our brownfield redevelopment planning helps connect desired outcomes with corrective action selection, implementation oversight, and coordination with regulatory agencies. We deliver key insight to inform environmental risk and redevelopment decision-making, including acquisition and divestiture considerations and situations where potential liability may influence project strategy.
Our experts specialize in transforming complex environmental datasets into clear, defensible visualizations that make technically challenging issues simple to understand and communicate. We distill information from environmental disclosures, regulatory reporting, monitoring programs, and historical or on-site investigations into visual formats that highlight patterns, timelines, relationships, and other environmental dynamics that are difficult to discern from raw data alone.
By turning detailed environmental measurements and modeling outputs into intuitive graphics and interactive exhibits, we help legal teams and corporate stakeholders engage quickly and confidently with the conditions, trends, and drivers underlying an environmental matter. These visual tools support the development of strong narratives, clearer evaluations of environmental impacts, and more informed decision-making across dispute resolution and strategic planning.
Through this combination of scientific expertise and accessible visualizations, we help clients bring clarity to complex environmental issues and navigate technically demanding environmental challenges with confidence.
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Nuestros conocimientos cubren una variedad de temas que afectan a las empresas, a la sociedad, a la economía y al medioambiente. Consulte nuestros últimos documentos técnicos, informes de investigación, seminarios educativos, charlas de la industria y artículos de perspectiva.
Colapso de un almacén de alimentos congelados a causa de una tormenta de nieve
Falla del pozo petrolero
Limpieza de Superfund
Testimonio de expertos en una importante disputa sobre acceso ambiental
Inspección de campo petrolífero
Gestión de un programa de reemplazo de transformadores
Instalación de pozos
B.W. Cooper
Tanque de almacenamiento subterráneo
Hotel Pallas
Seminario afectado por el huracán Ida
