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  2. Office of Inspector General

Congressional Testimony

This section lists all Office of Inspector General testimonies before the U.S. Congress.

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The Office of Inspector General is an independent organization that performs audits and investigations of the EPA to detect and prevent fraud, waste and abuse. Learn more

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DateTestimony and EPA OIG Witness
30-Sep-13A Look at the Audit Response of the Office of Inspector General, U.S. EPA to the Beale Investigation 
1-Oct-13Congressional Testimony: A Look at the Recent Work of the Office of Inspector General, U.S. EPA 
30-Apr-15Congressional Testimony: Employee Misconduct at the U.S. EPA 
6-Sep-17Congressional Testimony: EPA Oversight - Unimplemented Inspector General and GAO Recommendations 
17-Nov-11Congressional Testimony: Fostering Quality Science at EPA 
19-Apr-23Congressional Testimony: Hearing Before the Committee on Science, Space, and Technology, U.S. House of Representatives 
19-Sep-24Congressional Testimony: Hearing Before the Subcommittee on Environment, Manufacturing, and Critical Materials, Committee on Energy and Commerce, U.S. House of Representatives 
26-Feb-25Congressional Testimony: Hearing Before the Subcommittee on Oversight and Investigations, Committee on Energy and Commerce, U.S. House of Representatives 
13-Sep-23Congressional Testimony: Hearing Before the Subcommittee on Oversight and Investigations, Committee on Energy and Commerce, U.S. House of Representatives 
29-Mar-23Congressional Testimony: Hearing Before the Subcommittee on Oversight and Investigations, Committee on Energy and Commerce, U.S. House of Representatives 
9-Dec-21Congressional Testimony: Hearing on Examining Federal Efforts to Address PFAS Contamination 
19-Jun-14Congressional Testimony: Lack of cooperation by the U.S. Chemical Safety Board with the EPA’s Office of Inspector General 
18-May-16Congressional Testimony: OIG Investigations of Employee Misconduct at the U.S. Environmental Protection Agency 
1-Mar-07Congressional Testimony: Statement of Bill A. Roderick Before the Subcommittee on Environment and Hazardous Materials Committee on Energy and Commerce U.S. House of Representatives 
18-May-06Congressional Testimony: Statement of Bill A. Roderick Before the Subcommittee on Water Resources and Environment Committee on Transportation and Infrastructure U.S. House of Representatives 
29-Apr-09Congressional Testimony: Statement of Melissa Heist Before the Committee on Transportation and Infrastructure U.S. House of Representatives 
25-Jun-02Congressional Testimony: Statement of Nikki L. Tinsley Before The Senate Environment and Public Works Committee 
28-Sep-05Congressional Testimony: Statement of Nikki L. Tinsley Before the Subcommittee on Oversight and Investigations Committee on Energy and Commerce U.S. House of Representatives 
31-Jul-02Congressional Testimony: Statement of Nikki L. Tinsley Before the Subcommittee on Superfund, Toxics, Risk, and Waste Management, Senate Committee on Environment and Public Works 
20-Jul-04Congressional Testimony: Statement of Nikki L. Tinsley Before the Subcommittee on Water Resources and the Environment Committee on Transportation and Infrastructure U.S. House of Representatives 
25-Sep-08Congressional Testimony: Statement of Stephen J. Nesbitt Before the Committee on Environment and Public Works United States Senate 
4-Oct-07Congressional Testimony: Statement of Wade T. Najjum Before the Subcommittee on Environment and Hazardous Materials Committee on Energy and Commerce U.S. House of Representatives 
25-Jul-07Congressional Testimony: Statement of Wade T. Najjum Before the Subcommittee on Superfund and Environmental Health Committee on Environment and Public Works United States Senate 
30-Jul-08Congressional Testimony: Statement of Wade T. Najjum Before the Subcommittee on Water Resources and Environment Committee on Transportation 
3-Mar-04Congressional Testimony: Testimony of Melissa Heist Before The Committee on Environment and Public Works United States Senate 
1-Oct-03Congressional Testimony: Testimony of Melissa Heist Before the Subcommittee on Water Resources and the Environment Committee on Transportation and Infrastructure United States House of Representatives 
11-Jun-03Congressional Testimony: Testimony of Nikki L. Tinsley Before the Subcommittee on Water Resources and the Environment Committee on Transportation and Infrastructure United States House of Representati 
29-Apr-02Congressional Testimony: Testimony of Nikki Tinsley Before the Subcommittee on Energy Policy, Natural Resources and Regulatory Affairs Committee on Government Reform United States House 
14-Jun-16Congressional Testimony: Unimplemented OIG Recommendations at the U.S. Environmental Protection Agency and the U.S. Chemical Safety and Hazard Investigation Board 
12-Oct-11Cutting EPA Spending 
14-Mar-13EPA’s Fiscal Year 2012 Management Challenges 
7-May-14How the EPA’s Office of Homeland Security Impedes the Investigations of the EPA’s Office of Inspector General 
October 14, 2014Ineffective Oversight of Purchase Cards Results in Inappropriate Purchases at EPA 
10-Sep-14Is it Necessary to Clarify or Strengthen the Inspector General Act of 1978? 
2-Mar-11Major Management Challenges at the EPA 
30-Apr-15Management and Performance Oversight by the Office of Inspector General for the EPA and CSB 
30-Apr-15Ongoing Negotiations Regarding Impediments to Full Inspector General Access with the Office of Homeland Security and Importance of Timely Reporting of Employee Misconduct 
3-Feb-15Progress and Remaining Challenges Regarding Impediments to Access Faced by Office of Inspector General for EPA and CSB 
26-Mar-15Records Management Practices at the EPA 
4-May-11Stimulus Status: Two Years and Counting 
1-Oct-13The EPA OIG’s Investigation of John C. Beale 
4-Mar-15The EPA OIG’s Oversight of the U.S. Chemical Safety and Hazard Investigation Board 
7-May-14The Office of Inspector General’s Cases of Employee Misconduct at the EPA 
April 19, 2023Protecting the American Taxpayer: Highlighting Efforts to Protect Against Federal Waste, Fraud, and Mismanagement
March  29, 2023Follow the Money: Oversight of President Biden’s Massive Spending Spree
Statement of Sean W. O’Donnell, Inspector General
Dec 9, 2021Hearing on Examining Federal Efforts to Address PFAS Contamination
Statement of Sean W. O’Donnell, Inspector General of the Environmental Protection Agency
Sept 6, 2017EPA Oversight - Unimplemented Inspector General and GAO Recommendations
Statement of Alan S. Larsen, Counsel to the Inspector General
June 14, 2016Unimplemented OIG Recommendations at the U.S. Environmental Protection Agency and the U.S. Chemical Safety and Hazard Investigation Board
Statement of Alan S. Larsen, Counsel to the Inspector General
May 18, 2016OIG Investigations of Employee Misconduct at the U.S. Environmental Protection Agency
Statement of Patrick Sullivan Assistant Inspector General for Investigations
Apr 30, 2015Ongoing Negotiations Regarding Impediments to Full Inspector General Access with the Office of Homeland Security and Importance of Timely Reporting of Employee Misconduct
Statement of Arthur A. Elkins Jr. Inspector General
Apr 30, 2015Employee Misconduct at the U.S. EPA
Statement of Patrick Sullivan Assistant Inspector General for Investigations
Apr 14, 2015Management and Performance Oversight by the Office of Inspector General for the EPA and CSB
Statement of Arthur A. Elkins Jr. Inspector General
Mar 26, 2015Records Management Practices at the EPA
Written Statement of Kevin Christensen Assistant, Inspector General for Audits
Mar 4, 2015The EPA OIG's Oversight of the U.S. Chemical Safety and Hazard Investigation Board
Statement of Patrick Sullivan Assistant Inspector General for Investigations
Feb 3, 2015Progress and Remaining Challenges Regarding Impediments to Access Faced by Office of Inspector General for EPA and CSB
Statement of Arthur A. Elkins Jr., Inspector General
Oct 14, 2014Ineffective Oversight of Purchase Cards Results in Inappropriate Purchases at EPA
Statement of Janet Kasper, Director, Contracts and Assistance Agreement Audits
Sept 10, 2014Is it Necessary to Clarify or Strengthen the Inspector General Act of 1978?
Statement of Arthur A. Elkins Jr., Inspector General
June 19, 2014Lack of cooperation by the U.S. Chemical Safety Board with the EPA's Office of Inspector General
Statement of Arthur A. Elkins Jr., Inspector General
May 7, 2014The Office of Inspector General's Cases of Employee Misconduct at the EPA
Statement of Allan Williams, Deputy Assistant Inspector General for Investigations
May 7, 2014How the EPA’s Office of Homeland Security Impedes the Investigations of the EPA’s Office of Inspector General
Statement of Patrick Sullivan, Assistant Inspector General for Investigations
Oct 1, 2013The EPA OIG’s Investigation of John C. Beale
Statement of Patrick Sullivan, Assistant Inspector General for Investigations
Oct 1, 2013A Look at the Recent Work of the Office of Inspector General, U.S. EPA
Statement of Arthur A. Elkins Jr., Inspector General
Sept 30, 2013The EPA OIG's Investigation of John C. Beale
Oral Statement of Patrick Sullivan, Assistant Inspector General for Investigations
Sept 30, 2013A Look at the Audit Response of the Office of Inspector General, U.S. EPA to the Beale Investigation
Oral Statement of Arthur A. Elkins Jr., Inspector General
Mar 14, 2013EPA's Fiscal Year 2012 Management Challenges
Statement of Arthur A. Elkins, Jr., Inspector General
Nov 17, 2011Fostering Quality Science at EPA
Statement of Arthur A. Elkins, Jr., Inspector General
Oct 12, 2011Cutting EPA Spending
Statement of Arthur A. Elkins, Jr., Inspector General
May 4, 2011Stimulus Status: Two Years and Counting
Statement of Arthur A. Elkins, Jr., Inspector General
Mar 2, 2011Major Management Challenges at the EPA
Statement of Arthur A. Elkins, Jr., Inspector General
Oct 15, 2009The Clean Water Act after 37 Years: Recommitting to the Protection of the Nation's Waters
Statement of Wade T. Najjum, Assistant Inspector General for Program Evaluation
Apr 29, 2009Statement of Melissa Heist Before the Committee on Transportation and Infrastructure U.S. House of Representatives
Sept 25, 2008Statement of Stephen J. Nesbitt Before the Committee on Environment and Public Works United States Senate
July 30, 2008Statement of Wade T. Najjum Before the Subcommittee on Water Resources and Environment Committee on Transportation and Infrastructure U.S. House of Representatives
Oct 4, 2007Statement of Wade T. Najjum Before the Subcommittee on Environment and Hazardous Materials Committee on Energy and Commerce U.S. House of Representatives
July 25, 2007Statement of Wade T. Najjum Before the Subcommittee on Superfund and Environmental Health Committee on Environment and Public Works United States Senate
Mar 1, 2007Statement of Bill A. Roderick Before the Subcommittee on Environment and Hazardous Materials Committee on Energy and Commerce U.S. House of Representatives
May 18, 2006Statement of Bill A. Roderick Before the Subcommittee on Water Resources and Environment Committee on Transportation and Infrastructure U.S. House of Representatives
Sept 28, 2005Statement of Nikki L. Tinsley Before the Subcommittee on Oversight and Investigations Committee on Energy and Commerce U.S. House of Representatives
July 20, 2004Statement of Nikki L. Tinsley Before the Subcommittee on Water Resources and the Environment Committee on Transportation and Infrastructure U.S. House of Representatives
Mar 3, 2004Testimony Of Melissa Heist Before The Committee On Environment and Public Works United States Senate
Oct 1, 2003Testimony Of Melissa Heist Before The Subcommittee On Water Resources and The Environment Committee On  Transportation and Infrastructure United States House Of Representatives
June 11, 2003Testimony of Nikki L. Tinsley Before The Subcommittee On Water Resources And The Environment Committee On Transportation and Infrastructure United States House of Representatives
July 31, 2002Statement of Nikki L. Tinsley Before The Subcommittee On Superfund, Toxics, Risk, and Waste Management, Senate Committee On Environment and Public Works
June 25, 2002Statement of Nikki L. Tinsley Before The Senate Environment and Public Works Committee
Apr 29, 2002Testimony of Nikki Tinsley Before the Subcommittee on Energy Policy, Natural Resources and Regulatory Affairs Committee on Government Reform United States House of Representatives
  

OIG Independence of EPA

The EPA's Office of Inspector General is a part of the EPA, although Congress provides our funding separate from the agency, to ensure our independence. We were created pursuant to the Inspector General Act of 1978, as amended.

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Environmental Protection Agency  |  Office of Inspector General
1200 Pennsylvania Avenue, N.W. (2410T)  |  Washington, DC 20460  |  202-566-2391
OIG Hotline: 1-888-546-8740.

Office of Inspector General

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Last updated on January 27, 2026
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