Photo of Shannon L. Haney

Shannon L. Haney


“Environmental compliance issues that arise in everyday operations or due diligence can result in significant disruption. I take a detailed, practical approach to help minimize impacts from environmental issues so that a client can achieve their business goals.”



  • Missouri
  • Illinois
  • U.S. District Court, Eastern District of Missouri
  • U.S. District Court, Western District of Missouri
  • U.S. District Court, Southern District of Illinois


J.D., Washington University School of Law, 2002

B.A., Political Science and History, Butler University, 1999


Environmental compliance can be a full-time job for manufacturers and requires a detailed focus on permitting requirements and reporting deadlines.  When a notice of non-compliance occurs, a manufacturer’s continued operations can be on the line along with potential hefty penalties and risk of failing to meet internal company benchmarks.

Environmental Compliance

In her environmental legal practice, Shannon Haney helps manufacturing clients ensure allegations of environmental non-compliance do not affect their bottom line or day-to-day operations.  She works with EH&S personnel or in-house counsel to ensure that such allegations are resolved efficiently through detail-oriented advocacy, either through negotiations with agency personnel or in court proceedings. Shannon’s prior work at the Missouri Attorney General’s Office and more than 15 years’ environmental legal experience make her uniquely situated to effectively resolve permitting, disposal or other environmental issues for manufacturers.

Due Diligence – Mitigating Environmental Risks in Transactions

Another focus for Shannon is identifying and mitigating environmental risks in real estate transactions or mergers and acquisitions. Using a methodical approach crafted for each transaction, Shannon identifies and offers solutions to property contamination risks, historical improper waste disposal issues or other environmental exposures that are discovered through an appropriate environmental due diligence review. Shannon works closely with the corporate team to ensure that any environmental risks are appropriately addressed as a part of the overall transaction.

Environmental & Energy Litigation

Shannon has also extensively litigated CERCLA/Superfund cost recovery actions and represented companies in complex cost-allocation matters involving multimedia environmental impacts.

Shannon’s practice also involves representing energy clients in resolving hydrocarbon contamination claims stemming from pipeline releases or historic refinery operations.  In these matters, Shannon has represented refiners in addressing agency enforcement, negotiating consent orders, litigating class actions and tort claims.  

Professional Affiliations

  • Member of Commercial Real Estate Women – St. Louis
  • Member and Speaker for Chemical Industry Council of Illinois
  • Co-Chair – Greensfelder’s Women’s Connect Committee

Honors & Awards

Honors & Awards


Representative Matters

  • Assisted a client in assessing the environmental risk at a historic metal plating facility in a multi million-dollar project.
  • Litigated and resolved a multi million-dollar liability arising from historic pesticide manufacturing operations.
  • Assists a formal wear company with navigating historic liability sites through four state voluntary remediation programs to obtain no further action letters.
  • Assisted in the due diligence process for acquisition on a number of properties for commercial clients.
  • Assists a major oil refiner in the management of environmental risk resulting from historic refinery operations.
  • Provides daily advice to a manufacturer with operations across the U.S. regarding compliance issues and responding to releases and agency inquiries.
  • Resolved through negotiation a notice of violation to a local Illinois metal manufacturer.
  • Served as environmental due diligence counsel for client’s acquisition of four fuel centers and 20 retail locations.

News & Insights


Seminars & Speaking Engagements

  • "Lessons Learned & Practical Tips in Environmental Due Diligence: Phase I ESAs and Beyond"
    Missouri Chamber of Commerce and Industry's Energy & Environment Conference, Columbia, MO, August 21, 2019
  • CICI Hot Topics Seminar, St. Louis, MO, October 12, 2017
  • Planning committee member and session moderator
    Missouri Chamber of Commerce Environmental & Energy Conference at the Lake, July 29-31, 2015
  • "The Ever Moving Bulls Eye of CERCLA Cost Recovery Actions"
    Missouri Waste Control Coalition Conference, 2013
  • REGFORM Missouri Hazardous Waste Compliance Seminar
    Fall 2013
  • "Responding to Agency Enforcement"
    Missouri Chamber of Commerce Environmental Conference at the Lake, July 2011
  • September 30, 2010

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