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O’Melveny helps clients maximize the value of every deal by limiting and allocating environmental risks. With an international, interdisciplinary team skilled in transactions, litigation and regulation, we have extensive experience advising on environmental, health, and safety issues associated with mergers, acquisitions, divestitures, joint ventures, and financings. Our clients include buyers, sellers, and investors in virtually every industrial, commercial, and real estate sector.

For large-scale, complex global transactions, we work with a network of environmental consultants, toxicologists, local law specialists, insurance advisors, and actuaries, among others. On behalf of private equity giant Apollo Global Management, for example, we have provided diligence and documentation services in dozens of M&A transactions spanning five continents. 

And when companies are charged with violation of, or liability under, EHS laws, our renowned litigators are skilled at crafting creative and effective defense strategies, often taking into consideration claims in multiple jurisdictions

  • Environmental Issues
    • Water quality and supply
    • Air quality including climate change and greenhouse gas regulation
    • Reporting obligations
    • Permitting issues
    • Regulation and remediation of hazardous substances
  • Public Hearings
    • US Environmental Protection Agency
    • US Departments of Agriculture, Labor,  Energy, Interior, and Homeland Security
    • Army Corps of Engineers
    • Cal-EPA’s Department of Toxic Substances Control
    • Department of Health Services
    • Air Resources Board and local air districts
    • State Water Resources Control Board and regional boards
    • California Energy Commission
    • California Coastal Commission, and other states' counterpart agencies

Apollo Global Management

O’Melveny advised Apollo Global Management on EHS matters in connection with its acquisition of Tenneco, one of the world’s largest auto parts makers, with approximately 200 facilities in 28 countries. Read

Bloom Energy Corporation

O’Melveny represented Bloom Energy in its equity financing by Exelon Corporation of a portfolio of base load fuel cell electricity generators with 21 megawatts of capacity to be located at 75 commercial facilities in the states of California, Connecticut, New Jersey, and New York. Read

Building Energy

O’Melveny has advised Building Energy in its development of several renewable energy (including solar and wind) projects and concurrent construction and tax equity financing related thereto. Read

Environmental Health and Safety

We help clients plan, finance, and implement projects that clean up contaminated soil and groundwater. We have worked for financial institutions and private equity firms that arrange for remediation and repurposing of refineries and power generation facilities, in some cases providing for enhanced transmission grids. We also counsel clients on their hazardous and medical waste disposal compliance programs, ensuring proper handling of regulated waste to mitigate any impacts on human health or the environment. Read

Nu-West Industries

O’Melveny represents Nu-West Industries in connection with the investigation and remediation of several former phosphate mining sites in Southeast Idaho.  Read

Renewable Energy Projects

O’Melveny has represented developers and institutional investors in more than 150 wind, solar, fuel cell, geothermal, biomass and other clean and renewable energy projects.  Read

The Carlyle Group

O’Melveny represented Carlyle in environmental diligence and documentation related to its acquisition of a majority stake in the Traxys Group. Read

Vantage Airport Group

O’Melveny represents Vantage Airport group in connection with its redevelopment projects at New York’s LaGuardia and John F. Kennedy International Airports, and our Environmental team has played a key role in evaluating and managing environmental risks on those projects. Read
    • ADT
    • Agrium/Nu-West 
    • American Airlines
    • Apollo Global Management 
    • Avenue Capital Group 
    • Bank of America
    • The Carlyle Group 
    • Chemtura Corporation 
    • CI Capital Partners 
    • Edison Mission Energy 
    • Exxon Mobil Corporation 
    • Franklin Templeton
    • Gamut Capital
    • IFM Investors
    • JP Morgan 
    • KIK Custom Products
    • King Street Capital
    • LaGuardia Gateway Partners
    • Lennar 
    • LGT
    • Macquarie Infrastructure Company 
    • MHR Fund Management 
    • Momentive Specialty Chemicals 
    • Nations Petroleum (California) LLC 
    • Noranda 
    • Norwegian Cruise Lines 
    • Oaktree Capital Partners
    • Passaic Joint Defense Group 
    • Port of Oakland 
    • POSCO Energy 
    • Quality Distribution, Inc. 
    • Republic Services, Inc./Allied Waste/BFI 
    • Rexnord
    • Santa Cruz Biotechnology, Inc. 
    • Sithe Global Power 
    • Soros Capital Partners
    • SteelRiver Infrastructure Partners 
    • Trian Partners
    • Trilantic Capital Partners
    • UBS
    • Verso Corporation
    • Walmart