Lauren Hammond

Lauren Hammond is an environmental law attorney with nearly a decade of experience managing and enforcing complex regulatory matters under federal and state laws. As a former Senior Clean Air Act attorney for the U.S. Environmental Protection Agency, Lauren counseled, litigated, and negotiated high profile cases under the Clean Air Act, Clean Water Act, and Resource Conservation and Recovery Act.

Lauren has deep experience enforcing and addressing compliance matters with the oil and gas industry across the Mountain West, and on a national scale developing and leading the EPA’s National Enforcement and Compliance Initiative to mitigate air impacts from oil and gas.

Additionally, Lauren advised on numerous New Source Performance Standards for the oil and gas sector and other rulemakings under the Clean Air Act.

Lauren’s government experience also involved work with municipalities and construction companies on water quality issues, air quality issues related to diesel engine defeat device investigations, oil spill cleanup and spill prevention with gasoline distributors, waste cleanup related to oil wastewater disposal facilities, and municipal landfill air quality investigations. Lauren has led more than two dozen enforcement actions and investigations and draws from this breadth of experience to provide effective counsel on a diversity of environmental issues.

Concentrations

• Air quality

• Upstream, midstream, and downstream oil and gas

• Federal regulation, policy, and permitting under the Clean Air Act, Clean Water Act, Resource Recovery and Retention Act, National Environmental Policy Act, National Historic Preservation Act, and Endangered Species Act

• Climate change policy

• Greenhouse gas emissions

• Energy

• Dispute resolution

• Regulatory and governmental affairs

• Administrative law

Experience

Representative Matters

• Litigation team member for the S. & the State of Colorado et al. vs. City of Colorado Springs, and on an upstream oil and gas Clean Air Act case in the U.S. District Court for the District of Colorado.°

• Represented the U.S. EPA on numerous upstream and midstream oil and gas judicial enforcement matters.°

• Represented the U.S. EPA on multiple construction stormwater Clean Water Act enforcement actions.°

• Initiated administrative enforcement actions on behalf of the U.S. EPA on Clean Air Act and Clean Water Act actions.°

• Advised on national rulemakings including the New Source Performance Standards Subpart OOOOa, OOOOb, and OOOOc.°

• Developed, implemented, and led the National Compliance and Enforcement Initiative on Mitigating Climate Change for the oil and gas sector.°

• Led Clean Air Act enforcement investigations regarding municipal landfills.°

• Advised on Title V permit renewals for a coal-fired power plant and on new synthetic minor source permit applications for oil and gas sources across the Mountain West.°

• Represented the U.S. EPA on an administrative enforcement action against an oily wastewater disposal facility.°

• Advised the U.S. EPA on the implementation of a national refinery judicial consent decree.°

°The above representations were handled by Ms. Hammond prior to her joining Greenberg Traurig, LLP.

Government Experience

• U.S. Environmental Protection Agency, Region 8 Legal Enforcement Branch, 2015-2025

o Senior Clean Air Act Enforcement Attorney, 2024-2025

o Senior Assistant Regional Counsel, 2019-2024

o Enforcement Attorney, 2015-2019

Internships

• Law Clerk, Colorado Office of the Attorney General, Natural Resources and Environment Section, 2015

• Judicial Intern, Hon. Shelley Gilman, U.S. District Court for the District of Denver, 2014

• Law Clerk, U.S. Environmental Protection Agency, Office of Enforcement and Compliance Assurance, Mobile Source Enforcement Unit, 2014

Recognition & Leadership

Awards & Accolades

• Recipient, U.S. EPA National Gold Medal for Natural Gas Plant Enforcement, 2023

• Recipient, U.S. EPA James W. Craig Pollution Prevention Leadership Award, 2022

• Recipient, U.S. Department of Justice, Environmental Enforcement Section Annual Award, 2022

• Recipient, EPA National Silver Medal Recipient for Superior Service, 2021

• Recipient, U.S. Department of Justice Assistant Attorney General’s Award for Excellence, 2019

• Recipient, EPA Bronze Medal Recipient for Commendable Service, 2016

Professional & Community Involvement

• Member, Colorado Bar Association—Section of Environment, Natural Resources, and Energy Law, 2015-2017, 2025