Danny G. Worrell

Austin Office
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Danny Worrell focuses his practice on environmental contested case permitting and enforcement, Superfund litigation, and transactions and investigations involving environmental matters. He advises clients on regulatory compliance involving solid and hazardous waste, air quality, water quality, injection wells, underground and above-ground storage tanks, asbestos, polychlorinated biphenyls (PCBs), water and wastewater utilities, pesticides and pipelines, and in situ uranium mining.

Danny previously worked as a geologist for the ARCO Oil and Gas Company, specializing in oil and gas exploration. While attending law school, he was a member of the staff of the Houston Journal of International Law. Danny has earned an MS and a BS in geology.

Shown below is a selection of Danny’s engagements.

  • Representation of client in settling federal Superfund litigation involving a former barge-cleaning facility.
  • Lead attorney in contested case hearing on a municipal wastewater discharge permit proceeding that settled prior to the hearing on the merits.
  • Lead attorney in contested case hearing on air permit authorization for a concrete batch plant.
  • Assistance to client in successfully obtaining first Regulatory Flexibility Order from the TCEQ for use of the EPA Comparable Fuels Rule allowing substitution of fuels at chemical manufacturing facility.
  • Lead attorney in administrative contested case hearing and district court appeal. Successfully obtained renewal and new Class 1 hazardous-waste injection well permits from the TCEQ.
  • Assistance to client in successful settlement of product liability litigation relating to oil well cementing operations.
  • Representation of client in successfully negotiating settlement of administrative proceedings, involving a contested case hearing, on an application for renewal and major modification of Commercial Hazardous Waste Treatment, Storage and Disposal Facility permit.
  • Representation of clients in settling state Superfund cases involving a former scrap metal recycling facility, a former toll chemical manufacturing facility and a former electrical equipment refurbishing facility.
  • Representation of client in administrative contested case hearing involving amendment to production area authorization for in situ uranium mining permit before the Texas Commission on Environmental Quality.
  • Representation of clients in settling claims associated with federal Superfund litigation cases involving a former tin smelter and a former industrial waste disposal facility.
  • Lead attorney in contested case hearing on application to obtain a Municipal Solid Waste Type I landfill permit from the TCEQ.
  • Lead attorney in administrative contested case hearing and district court appeal. Successfully obtained a Texas Pollution Discharge Elimination System permit for a municipal wastewater discharge.
  • Representation of clients in successfully obtaining Single Property Designations from the TCEQ for air quality regulatory purposes.
  • Representation of client in administrative contested case, district court and appeals court proceedings involving major modifications to Class 1 non-hazardous injection well permits from the TCEQ.
  • Lead attorney in administrative contested case hearing and appeals before the Travis County District Court and Texas Eleventh Court of Appeals. Successfully obtained a Texas Clean Air Act preconstruction permit for an 800 megawatt coal-fired electric generating facility with a CO2 capture unit.


AV Preeminent Peer Review Rating by LexisNexis Martindale-Hubbell
Best Lawyers in America, 2007–2008, 2010–2012, 2014–2017
Who's Who Legal, Environment, 2014–2016
Texas, 2007–2008
Chambers USA, 2005–2011, 2014–2017
Legal 500, 2017
Brownfields Law & Practice, Texas chapter (Matthew Bender)
RCRA: Resource Conservation and Recovery Act, with co-authors John W. Teets and Dennis P. Reis (American Bar Association)
Subsurface Trespass Claims Against Underground Injection Control Operations, in conference materials for the Texas Natural Resource Conservation Commission 2002 Underground Injection Control Symposium
Legal and Strategic Considerations in Risk-Based Closures, in proceedings of Energy Week Conference and Exhibition
Land Disposal Restrictions: Current Developments and The Corrective Action Management Unit (CAMU) Rule, in conference materials for the Brown McCarroll & Oaks Hartline Annual Client Environmental Seminar
Exploration and Production Wastes and Class II Injection Wells: Current Regulatory Developments (SPE 27706), in Proceedings of the Permian Basin Oil & Gas Recovery Conference, sponsored by the Society of Petroleum Engineers
Understanding the New Corrective Action Management Unit (CAMU) Rule and its Impact on CERCLA Projects, in Operating Under RCRA and CERCLA Requirements, sponsored by Executive Enterprises, Inc.
Producing Property Conveyances and Environmental Liabilities: A Mine Field for the Unwary, with R. Kinnan Golemon, 43rd Annual Institute on Oil and Gas Law and Taxation, Matthew Bender
Overview of Federal and Texas Class II Injection Well Regulatory Programs and New Developments in Efforts to Revise These Programs, in proceedings of the Symposium on Class II Injection Well Management and Practices, sponsored by the Underground Injection Practices Search Foundation and the US Department of Energy
Recent Regulatory Changes Affecting Class I Injection Wells, with Albert R. Axe, Jr. and R. Steven Morton, in Proceedings of the Underground Injection Practices Council
Permitting Injection Wells in the New Texas, with Albert R. Axe, Jr., in Proceedings of the Underground Injection Practices Council
An Overview of the Use of Injection Wells for Industrial Waste Disposal, with R. Steven Morton and Susan Thompson
September 2011
Speaker | BACT and MACT- "Hunches in Bunches" | Texas Environmental Superconference | Austin, Texas
Speaker | What Happens When a Rule Is Vacated? MACT Hammer and Title V Impacts | TCC/ACIT Environmental, Health & Safety Seminar | Galveston, Texas
Speaker | The Impact of Changing Federal Energy and Environmental Laws and Policy | Gulf Coast Power Association, 25th Annual Fall Conference and Exhibition | Austin, Texas
Speaker | Compliance: Confidentiality and Ethics, Changing Times Require Changing Approaches | Texas Bar Law Center | Austin, Texas
Speaker | Environmental Law 101: Solid Waste | Texas Environmental Superconference | Austin, Texas


  • JD, University of Houston Law Center
  • MS, Louisiana State University
  • BS, The University of Texas at Austin

Bar Admissions

  • Texas

Court Admissions

  • US Court of Appeals, Fifth Circuit
  • Supreme Court of Texas


2007–2008, 2010–2012, 2014–2017
Environment, 2014–2016
Texas, 2007–2008
2005–2011, 2014–2017
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  • American Bar Association, Section of Environment Energy and Resources
  • Austin Bar Association
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