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Janessa M. Glenn

Fax +1.512.482.6859
Janessa Glenn is counsel at the firm’s Austin office where she concentrates her practice on a variety of administrative law issues, environmental regulatory issues, and environmental litigation. Ms. Glenn practices both before state agencies, including contested case proceedings, and in state court related judicial review of agency decisions. Her current practice also includes a concentration on the management and conveyance of surface and groundwater rights, Superfund cost recovery and appellate practice before the Texas Courts of Appeal and the Texas Supreme Court.

Professional Background

Prior to joining the firm, Ms. Glenn was a partner at an Austin law firm. She served as briefing attorney to the Honorable Justice Woodie Jones, Third Court of Appeals for the State of Texas, during the 1998-1999 term.


  • Rated AV-Preeminent
  • Rated Best Lawyers - Environmental

Professional/Civic Activities

  • Industry Council on the Environment (Current Legal Counsel; Former Board Member)
  • American Bar Association
  • Austin Bar Association (Environmental, Administrative, and Appellate Law Sections)
  • Girl Scouts of Central Texas (Oak Hill Service Unit Director)

Speaking Engagements

  • “Environmental Policy Under the Trump Administration: Legal Mechanisms for Change,” The Texas Women in Energy Conference, Spring 2017 
  •  “Implementation of Environmental Change under the Trump Administration,” January 2017
  • “A New Day Dawning for CERCLA Liability,” Industry Council on the Environment, 2010
  • “Water Law in Texas,” LBJ School, University of Texas, 2006
  • “Challenging the HGA SIP Rules: Litigation Thoughts, Strategies, and Potential Impact,” Clean Air Solutions for NOx Reduction Seminar, Houston, January 2001

Additional Information

  • St. Mary’s University School of Law (Freshlaw Program, 1995/1996)


  • Water conveyance aspects of property sale and acquisition of large ranch property for development as a subdivision with both surface and groundwater
  • Property transaction involving conveyance of Edwards Aquifer groundwater rights
  • Review and analysis of historical transfer of groundwater for large commercial transaction
  • Environmental due-diligence aspects of commercial property transactions for purchasers and lenders


  • PRP Group Counsel for Texas Superfund Site addressing PCB soil and groundwater contamination
  • Municipal Settings Designation applications for commercial property transactions
  • Counseling on remediation of “Brownfield” commercial sites nationwide
  • Conduct “All Appropriate Inquiry” analysis for commercial sites nationwide
  • Advise aluminum extrusion company in management of hazardous and solid waste
  • Favorably navigate client from Texas Superfund to the Texas VCP program


  • Federal Court representation of clients in CERCLA cost recovery litigation
  • Cost recovery against 100 parties in Superfund Cost Recovery action
  • Represent large waste management company in appeal of TCEQ’s issuance of MSW landfill permit
  • Settlement negotiations against State of Texas in Superfund Cost recovery matter.
  • Successful in defending client against EPA Region VI enforcement alleging improper recycling of hazardous waste
  • Defend against enforcement actions by TCEQ related to USTs
  • Defend against DOJ claims of improper hazardous waste recycling
  • Defend against local wastewater treatment violation allegations
  • Respond to EPA 104(e) information requests and coordinate Good Faith Offers
  • Appeal of Edward’s Aquifer Authority denial of permit from trial court through the Texas Supreme Court

Regulatory Counseling

  • Regulatory Counseling on State and Federal Water Quality/Pretreatment Environmental issues.
  • Regulatory Counseling on State and Federal Hazardous Waste Recycling issues

Air Issues

  • Represent oil and gas companies with respect to internal audits
  • Single Property Designation application

Administrative Hearings

  • Represent large waste management company in contested application for new MSW landfill permit before the State Office of Administrative Hearings
  • Represent applicant for horse and greyhound racetracks in contested matters before the State Office of Administrative Hearings