Beveridge & Diamond, P.C. > Washington DC, United States > Firm Profile

Beveridge & Diamond, P.C.
1350 I STREET, N.W.
WASHINGTON DC 20005-3311
United States

Industry focus > Environment: regulatory Tier 1

Led from Baltimore and Washington DC by Pamela Marks and Paul Hagen, Beveridge & Diamond, P.C.‘s environmental team has the breadth of expertise to handle a tremendous range and volume of regulatory work for a variety of clients facing cutting-edge legal issues at the federal, state and local level. Fully dedicated to environmental law, the firm stands out in the market for its established reputation of acting for Fortune 500 clients and major public entities in an array of industry sectors in nationwide matters involving PFAS regulatory schemes, environmental issues regarding supply chain due diligence, circular economy, climate change, environmental justice and environmental, social, and governance (ESG) issues. Its air and climate change practice has unparalleled experience of assisting refineries, chemical plants and other industries in securing permits for major expansions, while the water group is routinely engaged by companies, states and municipalities in challenges posed by federal and state water laws. Karen Hansen, who is based in Austin, oversees the water practice and focuses on programs for regulating and permitting water discharges and water supply. In the same office, Maddie Boyer takes the lead on international environmental, health and safety standards mandates, with a particular emphasis on Latin America. ESG matters are a core area of focus for Lauren Hopkins in Seattle, where Allyn Stern advises on environmental compliance and government regulations, given her former experience as EPA regional counsel. Premier environmental lawyer John Cruden, whose outstanding experience covers compliance, civil and criminal enforcement, is a key individual in DC.

Practice head(s):

Pamela Marks; Paul Hagen

Other key lawyers:

John Cruden; Karen Hansen; Maddie Boyer; Lauren Hopkins; David Weber; Allyn Stern; Julius Redd; Parker Moore; Sarah Munger

Key clients

McLane Company

Volkswagen AG

Johnson Controls Inc.

Contra Costa Transportation

Mountain Valley Pipeline

City and County of San Francisco

Kinder Morgan Energy Partners

United Airlines, Inc.

Los Angeles Metropolitan Transportation Authority

Work highlights

  • Providing ongoing national environmental compliance and counseling to McLane across 27 states.
  • Representing multinational companies and municipal clients in complex environmental disputes and high-profile project management, corporate responsibility, environmental compliance, and investigations related to environmental justice and Title VI of the Civil Rights Act of 1964 enforcement.
  • Regularly advising Fortune 100 Companies on cutting-edge regulatory issues related to product stewardship, circular economy, and corporate sustainability/ESG.

Industry focus > Environment: litigation Tier 2

Rated by clients for its ‘deep level of knowledge‘, Beveridge & Diamond, P.C. is an environmental boutique with an extremely strong reputation in the United States. The firm’s litigation practice is skilled at handling high-profile cases with national and international significance, especially cutting-edge legal matters involving toxic tort, soil and water contamination, citizen suits, constitutional law, and enforcement defense. Recent mandates saw the team represent major companies and trade associations in defending or settling multi-party claims involving PFAS liability and disposal, plastic waste, climate change, environmental justice, product stewardship, and EHS issues related to COVID-19. Complex contaminated site cost recovery claims also feature on the team’s caseload. The full-service practice is jointly managed by Megan Brillault in New York and John Cruden in Washington DC; Brillault acts for Fortune 500 companies, trade associations and businesses in civil and criminal environmental proceedings, and Cruden is a preeminent attorney in high-stakes natural resources and environmental litigation. John Guttman, who splits his practice between New York and DC, combines expertise in toxic tort, environmental litigation and natural resource damages claims. David Weber in Seattle serves as co-chair of the firm’s air and climate change group, and focuses on litigation and enforcement matters. Sitting in the San Francisco office, Susan Smith maintains a national litigation practice covering toxic torts, insurance coverage and drinking water contamination. Bina Reddy is a key practitioner in Austin.

Practice head(s):

Megan Brillault; John Cruden

Other key lawyers:

Loren Dunn; Susan Smith; James Slaughter; John Guttman; David Weber; Eric Klein; Bina Reddy; John Paul; Kaitlyn Shannon; Katelyn Ciolino; Mike Vitris


‘I think what makes this practice unique is the collaboration and truly listening to the client on issue/goal and then providing the legal expertise and potential paths forward. The vast expanse of knowledge in the states and regions we work in is very much appreciated and we are not wasting time on getting anyone up to speed. The deep level of knowledge and relationships is very valuable.’

‘The folks I work with truly take the time to understand the process and collaborate with the subject matter experts to find solutions. David Weber has been incredibly helpful and insightful which has led to a good outcome in a timely manner.’

Key clients

Clarios, LLC

City of Newark


EVRAZ Inc. NA (Oregon Steel)

International Joint Commission

Waste Connections, Inc.

Lincoln Military Housing

TLA-Holbrook LLC

Westlands Water District


Work highlights

  • Successfully represented the City of Newark, NJ in defense of a federal citizen suit under the Safe Drinking Water Act (and the associated Lead and Copper Rule) brought by NRDC after Newark allegedly exceeded the federal lead action limit on lead in drinking water in 2017.
  • Acting as lead litigation counsel for Clarios, LLC, the world’s largest producer of lead-acid batteries for automobiles, in federal CERCLA litigation over environmental contamination from a lead smelter in Vernon, California.
  • Represents subsidiaries of Waste Connections, Inc. in three putative class action lawsuits filed in New York state courts, regarding three landfills.