David L. Wallis

"The Phoenix-based Gallagher & Kennedy environmental team has remarkable depth and expertise across the full environmental spectrum- remediation, reclamation, air, water, waste and contribution/cost recovery. Dave Wallis is an outstanding, client-focused and solution driven environmental lawyer."
Anonymous client
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David L. Wallis


David’s practice focuses on environmental remediation, enforcement, and litigation and regulatory counseling.  David represents clients with complex environmental remediation sites, natural resource damage claims, environmental and toxic tort litigation, solid and hazardous waste compliance and permitting, asbestos abatement, water quality permitting and compliance, underground storage tank corrective actions, and environmental due diligence matters.  During the past year, he has advised clients on remediation sites in 20 states involving soil, groundwater, and sediment cleanup.  He also has conducted over 120 comprehensive environmental compliance audits throughout the United States and internationally over the past 25 years.  He has counseled clients on over 500 real estate transactions in 11 different states.

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  • Brigham Young University
    J.D., magna cum laude, 1988
    Order of the Coif
    Editor-in-Chief, Law Review
  • Brigham Young University
    B.A., 1985