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Abbreviation
EPA
Agencies
Environmental Protection Agency
Chemical Safety and Hazard Investigation Board
Federal Agency
Yes
Location

United States

What to Report to the OIG Hotline
Be as specific as possible and provide the following: • Relevant name(s) of all parties involved, including witnesses and other contacts. • Dates and times of the events or issues that you are identifying. • The location of the issue or the area that it impacts. • Name of contractor or grantee. • Contract or grant numbers. • Contract or grant award date. • Any additional pertinent information you have concerning the issue.
What Not to Report to the OIG Hotline
The OIG Hotline handles allegations of fraud, waste and abuse in EPA and CSB programs generally. For immediate concerns regarding an environmental hazard, please contact an EPA hotline, as shown below. • Contact a specific EPA hotline. • Or use the EPA Environmental Violations Form to report any incident.

Independent Audit of the EPA's Fiscal Years 2024 and 2023 (Restated) Consolidated Financial Statements

2025
25-F-0010
Audit
Environmental Protection Agency OIG
Environmental Protection Agency

We rendered an unmodified opinion on the EPA's consolidated financial statements for fiscal years 2024 and 2023 (restated), meaning that they were fairly presented and free of material misstatement. However, we noted three material weaknesses and one significant deficiency. The most concerning...

Management Implication Report: Cybersecurity Concerns Related to Drinking Water Systems

2025
25-N-0004
Other
Environmental Protection Agency OIG
Environmental Protection Agency

The passive assessment covered 1,062 drinking water systems for cybersecurity vulnerabilities that serve over 193 million people across the United States. Scan results for October 8, 2024, identified 97 drinking water systems serving approximately 26.6 million users as having either critical or high...

Management Implication Report: Poor Data Management Hinders Oversight of State Clean and Drinking Water State Revolving Fund Programs

2025
25-N-0002
Other
Environmental Protection Agency OIG
Environmental Protection Agency

Some states are collecting and storing their CWSRF and DWSRF subrecipient and contractor data in unstructured or nonmachine-readable formats. Data that are not collected or stored in a structured database or machine-readable format can be difficult to access and can significantly inhibit the ability...

Inadequate Execution of the 7th DWINSA Lead Service Line Questionnaire Led to Flawed Data Being Used to Allot Lead Service Line Replacement Funds

2025
25-E-0002
Inspection / Evaluation
Environmental Protection Agency OIG
Environmental Protection Agency

The design and execution of the 7th Drinking Water Infrastructure Needs Survey and Assessment did not result in allotments of lead service line, or LSL, funds that accurately reflected the LSL replacement needs in each state. The EPA used the responses to the survey's supplemental LSL questionnaire...

The CSB Complied with Improper Payment Requirements in Fiscal Year 2023

2025
25-P-0001
Audit
Environmental Protection Agency OIG
Chemical Safety and Hazard Investigation Board

In fiscal year 2023, the CSB complied with improper payment requirements pursuant to the PIIA. The CSB's combined outlays for all programs totaled $8.988 million. CSB management decided to perform an improper payment risk assessment for fiscal year 2023 even though it was not required to do so, as...

Most States Did Not Provide Some Required Fee Information in the Intended Use Plan or Annual Report for Their Clean Water State Revolving Funds

2024
24-N-0069
Audit
Environmental Protection Agency OIG
Environmental Protection Agency

Most of the 47 states that charged fees to CWSRF loan recipients did not provide some required fee information in either their intended use plan or annual report for 2022. This may have occurred because the Office of Water's guidance was not clear with respect to the definitions of the required...

The EPA Awarded WIIN Act Funds Consistent with Nearly All Guidance and Improved Its Processes to Increase Transparency of Funding Decisions

2024
24-P-0068
Audit
Environmental Protection Agency OIG
Environmental Protection Agency

We determined that the EPA awarded WIIN Act funds consistent with nearly all guidance and improved Agency processes to increase the transparency of funding decisions. We identified two documentation issues that the EPA experienced before it awarded funds. Agency staff reported to us that they had...

The EPA's Brownfields Projects Program Is on Track to Meet Its Justice40 Goal but Overestimated Disadvantaged Community Benefits

2024
24-P-0067
Audit
Environmental Protection Agency OIG
Environmental Protection Agency

We found that the EPA's Brownfields Projects Program, a subset of the overall Brownfields Program, met the Executive Office of the President's Justice40 Initiative reporting requirements for fiscal year 2022 Infrastructure Investment and Jobs Act-funded projects. The program is also projected to...

Report of Investigation: Whistleblower Reprisal Investigation

2024
24-N-0062
Other
Environmental Protection Agency OIG
Environmental Protection Agency

The OIG received hotline complaints from five EPA scientists who raised multiple allegations of misconduct, including that the Agency took retaliatory actions from 2019 through 2022 after each scientist expressed differing scientific opinions and after they filed hotline complaints with the EPA OIG...

Report of Investigation: Whistleblower Reprisal Investigation

2024
24-N-0065
Other
Environmental Protection Agency OIG
Environmental Protection Agency

The OIG received hotline complaints from five EPA scientists who raised multiple allegations of misconduct, including that the Agency took retaliatory actions from 2019 through 2022 after each scientist expressed differing scientific opinions and after they filed hotline complaints with the EPA OIG...

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