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J.D., University of California at Los Angeles, School of Law, 1969

B.A., University of California at Los Angeles, 1966




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Ragna Henrichs is senior counsel in the environmental section of Porter Hedges. Her practice focuses on environmental law, and she has extensive experience with remediation projects, enforcement and compliance matters, permitting and regulatory counseling. Ms. Henrichs has represented steel, chemical, oil and gas, oilfield service, real estate development, waste management companies, airlines and public utilities, in permit proceedings, including contested permit hearings, and in the defense of civil and criminal enforcement actions and citizen suits.

Her representation of potentially responsible parties in federal Superfund actions has ranged from steering committee and settlement committee service in large, multi-party cases to numerous de minimis settlements and various cost recovery actions. Her practice also includes clients involved in cleanup of contaminated sites under other programs, including the Texas Voluntary Cleanup Program.

Ms. Henrichs works with corporate and real estate clients and lenders in environmental due diligence arising out of transactions. She provides counseling to resolve issues through mechanisms such as tailored auditing programs, remediation and indemnity agreements, environmental insurance, environmental management systems and compliance plans.

In 2017, Ms. Henrichs was named on the Best Lawyers “Women in the Law” list in the area of Environmental Law.  In November 2011, she was one of a select group of environmental attorneys who received the George W. Perkins Award from Parks & Trails New York honoring her as a “Pioneer in Environmental Law.”  She is listed as one of America's leading lawyers in environmental law by Chambers USA and has been listed for twenty years in The Best Lawyers in America, Environmental Law. She has been selected for inclusion in Texas Super Lawyers in Environmental/ Land Use Law since 2003, Super Lawyers Corporate Counsel Edition for the State of Texas in Environmental Law since 2009, and recognized by ALM as a "2013 Top Rated Lawyer in Energy/Environmental."    

Prior to joining the firm, Ms. Henrichs practiced in a corporate law department in Basel, Switzerland and a private law firm in New York.

Representative Experience

  • Defense of chemical manufacturer in high-profile federal RCRA enforcement action raising issues of first impression.
  • Development of a regulatory compliance program for a client with operating locations in more than twenty states.
  • Superfund defense and cost recovery actions.
  • Wetlands delineation and permitting.
  • Remediation projects involving soil groundwater and surface water concerns, some with off-site implications, including projects relating to oilfield releases.
  • Negotiation and litigation of environmental insurance provisions.
  • Defense of citizen suits and agency enforcement actions.
  • Environmental planning for corporate transactions.

Professional / Civic Affiliations

  • Martindale Hubbell AV Rated Attorney
  • New York State Bar Association, Chair of the Environmental Law Section (1990-1991)
  • New York State Bar Association, Member Environmental Law Section Council
  • American Bar Association, State Bar Associations of Texas and New York, and Houston Bar Association, Member of the Environmental Section
  • Houston Delta Gamma Foundation, Board of Trustees and Former President