Environmental Litigation

Companies may face environmental litigation arising from regulatory agency enforcement actions, contamination and remediation disputes, cost recovery and contribution claims, permit and entitlement challenges, and private-party or class actions alleging exposure to hazardous substances. These matters frequently involve state and federal statutes, such as the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), Clean Water Act, California Environmental Quality Act (CEQA), National Environmental Policy Act (NEPA) and claims tied to emerging contaminants like PFAS. Cooley represents clients across these matters with an end-to-end approach, managing disputes with trial-tested focus and defensible strategy to maintain our clients’ business objectives.

Environmental litigation often begins with investigations, enforcement notices or administrative orders issued by state or federal agencies. These matters may escalate into administrative proceedings or court litigation over alleged violations, remediation obligations, penalties or permit conditions. Cooley guides clients through each phase – responding to agency actions, contesting orders and litigating challenges where appropriate – drawing on deep regulatory fluency and trial experience to resolve disputes efficiently.

Emerging contaminants, such as PFAS, are increasing environmental litigation risk due to evolving regulations, intensified enforcement, and growing private‑party and class action claims. These disputes often involve complex scientific evidence, testing methodologies and historical liability questions. Cooley advises and defends companies facing PFAS‑related claims, agency actions and transaction‑related exposure, coordinating strategies across jurisdictions while integrating litigation insight into risk assessment and due diligence.