Beveridge & Diamond
David C. Weber photo

David C. Weber


600 University Street
Suite 1601
Seattle, WA 98101-3109

  • University of Oregon (B.S., Journalism and Political Science, 1998)
  • University of Oregon School of Law (J.D., 2001; Associate Editor of the Oregon Law Review)
Bar Admissions & Memberships
Bar Admissions & Memberships
  • Oregon
  • Washington
  • American Bar Association, Section of Environment, Energy, and Resources

David Weber is the Managing Principal and co-founder of Beveridge & Diamond’s Seattle, Washington office.  He also serves as the co-chair of the Firm’s Air and Climate Change Practice Group. David focuses his practice on environmental litigation and compliance counseling, including air and water quality regulation, hazardous waste handling and remediation, and contaminated site cleanups under federal and state laws.

A cornerstone of David’s practice is advising clients on national air quality and climate change issues. He represents businesses in connection with enforcement proceedings, agency rulemakings, and permitting issues under the Clean Air Act and similar state air laws and regulations.  His work has included a wide range of CAA compliance issues, including Title V, NSR/PSD, NSPS, and NESHAP/MACT projects.  He also has significant experience in matters related to the regulation of mobile and off-road sources, such as California’s off-road diesel and large spark-ignition regulations.

David also devotes a significant portion of his practice to handling complex environmental remediation and restoration projects. He has extensive experience in successfully and efficiently prosecuting and defending cost recovery and natural resource damages claims under CERCLA and state Superfund laws. 


David is an active member of the ABA Section of Environment, Energy, and Resources. He is an EPA Region 10 reporter for the Air Quality Committee and recently served as a Vice-Chair of the Environmental Litigation and Toxic Torts Committee.  David has represented Washington State CASA, the Pike Market Medical Clinic, and KCBA’s Legal Services for the Homeless Program on a pro bono basis.

David received his B.S. in Journalism and Political Science from the University of Oregon, and his J.D. from the University of Oregon School of Law. In law school, he was an Associate Editor of the Oregon Law Review.  In college, David was a captain for the Oregon Ducks football team, as well as a three-time Pac-10 conference All-Academic selection.  Away from his law practice, David enjoys rooting for his Ducks and spending time with his wife, Courtney, and their two lively daughters.   

Representative Matters
Representative Matters

Examples of David's experience include:1

  • Outside counsel to a major international transportation company, advising on federal and state air quality compliance, permitting, enforcement, and climate change matters.
  • Represent multiple parties in preparing defenses to contribution, cost recovery, and natural resource damages claims at Superfund sediment sites, including cases involving a regional electric utility, a U.S. affiliate of a major steel manufacturer, and a national paper and packaging manufacturer.
  • For multiple clients, regularly support corporate transactions that involve or implicate environmental issues. Provide advice on the allocation of environmental risks, and assist in the development of new environmental audit and risk assessment techniques.
  • Represented multiple parties in citizen suit actions under the CWA, including suits brought against a Washington municipal sewer district and against a plastic film manufacturer.
  • Represented the nation’s largest producer of building materials made from polystyrene (EPS) insulating foam. Representation included responding to Section 114 information requests and notices of violations under the CAA; petitioning for Title V permit variances; and challenging draft Title V permit issued by regional air authority.
  • Represented an EPA remedial action construction contractor in defending claims by property owner for contribution for costs of conducting EPA emergency removal action at pesticide-contaminated hop farm.
  • Represented one of the Northwest’s leading utilities on multiple manufactured gas plant remediation / cleanup sites, including at Superfund sediment sites.
  • Represented a leather manufacturer in a CERCLA/Oregon hazardous substance statute lawsuit, and ODEQ consent judgment proceedings concerning a former tannery.
  • Represented owner of wood treatment facility in defense of claims by EPA for recovery of costs incurred by EPA in performing time-critical emergency removal action.

1 Experience listed here includes work done at other law firms.