LAWYER PROFILE
Leah Hurtgen Ziemba

Leah Hurtgen Ziemba

USA 2026

Chambers ranking badge
Chambers ranking badge

Ranked in 1 practice area

About

Provided by Michael Best & Friedrich LLP

Practice Areas

Leah Hurtgen Ziemba takes a big-picture approach in advising clients as they face challenges on environmental, food safety, and regulatory compliance issues, drawing on experience gained in cases involving the EPA, FDA, and other public agencies.

Her work includes:

• Counseling clients through legal issues associated with PFAS and other contamination plumes that impact drinking water resources and residential homes

• Investigating, assessing, and remediating vapor intrusion issues at sites with historic solvent contamination

• Providing environmental liability assessments and risk management during transactional due diligence

• Implementing the Food Safety Modernization Act and advising on food labeling matters

• Navigating local, county, and state environmental regulations to permit and build or expand manufacturing facilities and commercial dairy operations

Leah has successfully negotiated State Pollutant Discharge Elimination System-related consent orders for agribusinesses with state regulatory agencies and the EPA. She has experience with Per-and Polyfluoroalkyl substances (PFAS), including performing detailed legal analyses regarding the extent of state and federal regulatory authority related to PFAS compounds, evaluating PFAS-focused supply chain requirements, and advising clients on best practices to assess current and historical PFAS risk exposures and related considerations.

Leah has also achieved positive outcomes for clients with Concentrated Animal Feeding Operations (CAFOs) on environmental compliance matters.

Chambers Review

Provided by Chambers

Chambers Guide to the USA

Natural Resources & Environment - Wisconsin

Band 3
Band 3

Individual Editorial
Leah Hurtgen Ziemba is well regarded for her handling of environmental issues including compliance. She has notable experience in remediation, liability assessment, PFAS matters and environmental indemnity agreements.

Strengths

Provided by Chambers

  • Leah Ziemba is a trusted adviser to my company. Her expertise and experience comes through repeatedly.

    Natural Resources & EnvironmentChambers Guide to the USA
  • Leah is personable, incredibly knowledgeable and solution-oriented.

    Natural Resources & EnvironmentChambers Guide to the USA

Ranked Individuals at Michael Best & Friedrich LLP (49)

District of Columbia

Illinois

North Carolina

Utah

Wisconsin

What success is built on

Chambers is the leading data and intelligence partner for the legal sector.

Explore thought leadership