Matthew K. Tieslau focuses his practice on environmental compliance, water law, and brewery representation.
Matt counsels clients on a range of natural resources and environmental matters, including state and federal regulatory compliance, environmental liability (CERCLA, RCRA, CWA), litigation, permitting, auditing, reporting, enforcement, agency negotiations and environmental due diligence for purchase and sale transactions. His clients have included industrial manufacturers, oil and gas operators, municipalities, mines, property owners, and ranchers.
Matt advises on water law matters related to water applications covering senior and junior rights, as well as exchanges and expansions, historical use quantification, and issues of state versus federal law. He also provides counsel on remediation and other water quality issues.
Matt also advises brewery, distillery, and food and beverage clients on local, state, and federal licensing, ongoing compliance, and day-to-day operations.
Concentrations
•Environmental compliance: auditing, enforcement, permitting, reporting.
•Mining
•Right-of-access
•Election law in the environmental context
•Brewery, distillery, and food and beverage representation, including liquor licensing
Recognition & Leadership
Awards & Accolades
•Listed, The Best Lawyers in America
•'Ones to Watch,' Litigation - Environmental, 2023-2025
•'Ones to Watch,' Natural Resources Law, 2023-2025
•'Ones to Watch,' Environmental Law, 2024-2025
•Listed, The Legal 500 United States, Dispute Resolution Product Liability, Mass Tort and Class Action - Defense - Toxic Tort, 2024
•Listed, Super Lawyers magazine, Colorado Super Lawyers, 'Rising Stars,' 2023-2024
•Team Member, a Law360 “Environmental Practice Group of the Year,” 2022