Science & Technology

Report: The CSB Complied with Improper Payment Requirements in Fiscal Year 2023

Designation and NAAQS Information Related to SO2 (2010 Standard)

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

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

Report: Management Implication Report: Cybersecurity Concerns Related to Drinking Water Systems

Report: U.S. Chemical Safety and Hazard Investigation Board Fiscal Years 2024 and 2023 Financial Statement Audit Controls

U.S. Chemical Safety and Hazard Investigation Board Fiscal Years 2024 and 2023 Financial Statement Audit

Semiannual Report: The EPA Should Improve Monitoring of 2022 Clean School Bus Rebate Recipients’ Use of Funds and Deployment of Buses and Infrastructure

Report: The EPA Should Improve Monitoring of 2022 Clean School Bus Rebate Recipients’ Use of Funds and Deployment of Buses and Infrastructure

The EPA Should Improve Monitoring of 2022 Clean School Bus Rebate Recipients’ Use of Funds and Deployment of Buses and Infrastructure

Report: Evaluation of Trends in Resource Conservation and Recovery Act State-Level Enforcement Data

Report: OIG Report to the Office of Management and Budget on the EPA’s and CSB’s Implementation of Recommendations Related to Purchase and Travel Card Programs

In compliance with the Act, the U.S. Environmental Protection Agency Office of Inspector General conducts periodic audits, assessments, and reviews of the travel and purchase card programs at the EPA and the U.S. Chemical Safety and Hazard Investigation Bo

Report: The EPA Left $20 Million Unawarded in the Sewer Overflow and Stormwater Reuse Municipal Grants Program

Report: EPA Guidance Addresses Implementation Requirements for Infrastructure Investment and Jobs Act for Drinking Water State Revolving Fund Emerging Contaminants Funding, but Clarification Is Needed Before More States Spend Funds

Report: EPA Guidance Addresses Implementation Requirements for Infrastructure Investment and Jobs Act for Drinking Water State Revolving Fund Emerging Contaminants Funding, but Clarification Is Needed Before More States Spend Funds

Report: Independent Audit of the EPA’s Fiscal Years 2022 and 2021 (Restated) Toxic Substances Control Act Service Fee Fund Financial Statements

Report: Independent Audit of the EPA’s Fiscal Years 2023 and 2022 (Restated) Pesticides Registration and Expedited Processing Fund Financial Statements

Report: Evaluation of Institutional Control Documentation in the Superfund Enterprise Management System on IIJA-Funded Sites

Science & Technology

Report: The CSB Complied with Improper Payment Requirements in Fiscal Year 2023

Designation and NAAQS Information Related to SO2 (2010 Standard)

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

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

Report: Management Implication Report: Cybersecurity Concerns Related to Drinking Water Systems

Report: U.S. Chemical Safety and Hazard Investigation Board Fiscal Years 2024 and 2023 Financial Statement Audit Controls

Semiannual Report: The EPA Should Improve Monitoring of 2022 Clean School Bus Rebate Recipients’ Use of Funds and Deployment of Buses and Infrastructure

Report: The EPA Should Improve Monitoring of 2022 Clean School Bus Rebate Recipients’ Use of Funds and Deployment of Buses and Infrastructure

Report: Evaluation of Trends in Resource Conservation and Recovery Act State-Level Enforcement Data

Report: OIG Report to the Office of Management and Budget on the EPA’s and CSB’s Implementation of Recommendations Related to Purchase and Travel Card Programs

Report: The EPA Left $20 Million Unawarded in the Sewer Overflow and Stormwater Reuse Municipal Grants Program

Report: EPA Guidance Addresses Implementation Requirements for Infrastructure Investment and Jobs Act for Drinking Water State Revolving Fund Emerging Contaminants Funding, but Clarification Is Needed Before More States Spend Funds

Report: Independent Audit of the EPA’s Fiscal Years 2022 and 2021 (Restated) Toxic Substances Control Act Service Fee Fund Financial Statements

Report: Independent Audit of the EPA’s Fiscal Years 2023 and 2022 (Restated) Pesticides Registration and Expedited Processing Fund Financial Statements

Report: Evaluation of Institutional Control Documentation in the Superfund Enterprise Management System on IIJA-Funded Sites

Report: Accessing Superfund Five-Year Reviews Listed in the EPA’s Annual Reports to Congress

Report: Audit of the EPA’s Compliance with the Federal Information Security Modernization Act for Fiscal Year 2024

February 28, 2005 RFC: Health Effects of Diisocyanates

EPA response to RFC: Risk Assessment for Metan Sodium

RFC: Toxics Release Inventory Listing of Isopropyl Alcohol