Ann E. Prouty



Ann Prouty helps clients navigate all aspects of environmental compliance. She assists businesses of all sizes with permitting, compliance and enforcement actions, environmental audits, rulemaking, environmental litigation and dispute resolution.

Environmental Compliance and Enforcement Actions

Ann advises clients on compliance issues arising under:

  • The Comprehensive Environmental Response, Compensation and Liability Act (CERCLA)
  • The Resource Conservation and Recovery Act (RCRA)
  • The Clean Air Act (CAA)
  • The Clean Water Act (CWA)
  • Various state and local regulations
  • Contractual environmental indemnity provisions

She frequently represents businesses in enforcement actions relating to violations of air and waste statutes and regulations, including the development of supplemental environmental projects to assist in settlement. She also advises on release reporting obligations and all aspects of emergency response.

Environmental Litigation

When informal dispute resolution fails, Ann represents clients in litigation arising from environmental matters. This includes litigation under traditional environmental laws, as well as contractual environmental obligations and common law issues.


Ann counsels corporations on their environmental obligations and liability during real estate and M&A transactions, including brownfield issues.
Ann Prouty Named 2020 'Top Women in Energy' Honoree by the Denver Business Journal


Bar Admissions



Columbia Law School
J.D. James Kent Scholar, Harlan Fiske Stone Scholar, Hamilton Fellow, Columbia Journal of Environmental Law (senior executive editor) (2009)

Pomona College
B.A. cum laude, Phi Beta Kappa (2005)

Insights & Events

Leadership & Community

Pro Bono

  • Human Rights
  • Immigration and Asylum

Professional Associations

  • American Bar Association — Environmental and Energy Litigation Section; Young Lawyers Division, (Co-Chair, 2011-present)
  • Colorado Environmental Management Society — Vice President, 2012; President, 2013; Board Member, 2014
  • Colorado State Bar Association

Civic Activities

  • Downtown Denver Partnership — Leadership Program Alumnus
  • The Kitchen Community — Associate Board Member
  • Colorado Oil and Gas Association EnGen Leadership Program — 2018 Participant

Firm Leadership


  • Best Lawyers® — Environmental Law, 2022-23
  • Denver Business Journal — Top Women in Energy, 2019-20
  • Faegre Baker Daniels — Pro Bono Honor Roll, 2014, 2018-19
  • Super Lawyers — Colorado Rising Star, 2014-19

Awards Methodology

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