Science & Technology

Wastewater Utility Response Protocol Toolbox Introduction

Learn about how to use the Wastewater Response Protocol Toolbox to help wastewater utilities respond to contamination emergencies

Module 4: Wastewater Utility Analytical Guide

Learn how o plan an approach to analyze samples when the wastewater utility and/or collection system is contaminated.

Module 1: Water Utility Planning Guide for Drinking Water Utilities

This module helps utilities plan for contamination threats in public water supply.

Investigating for Possible Contamination in Norwood, Pennsylvania

Up-to-date information on EPA's site assessment in Norwood, Pennsylvania.

2022v1 Emissions Modeling Platform

Modeling files from the 2022 Emissions Modeling Platform

The CSB’s Fiscal Year 2024 Top Management Challenges

The EPA’s Fiscal Year 2024 Top Management Challenges

Report: EPA's FYs 2020–2021 Top Management Challenges

Report #20-N-0231, July 21, 2020. Identifying and resolving top management challenges is essential to the EPA's protection of human health and the environment.

Report: Fiscal Year 2020 U.S. Chemical Safety and Hazard Investigation Board Management Challenges

Report #20-N-0218, July 6, 2020. Unaddressed management challenges will impede the ability of the CSB to function effectively.

FY 2024 U.S. Chemical Safety and Hazard Investigation Board Management Challenges

At a Glance, December 6, 2023. The OIG is required by statute to prepare an annual report summarizing what the OIG considers the “most serious management and performance challenges facing the agency.”

FY 2025 U.S. Chemical Safety and Hazard Investigation Board Management Challenges

At a Glance, December 6, 2025. The OIG is required by statute to prepare an annual report summarizing what the OIG considers the “most serious management and performance challenges facing the agency.”

FY 2026 U.S. Chemical Safety and Hazard Investigation Board Management Challenges

At a Glance, December 6, 2026. The OIG is required by statute to prepare an annual report summarizing what the OIG considers the “most serious management and performance challenges facing the agency.”

Report: EPA’s Fiscal Year 2023 Top Management Challenges

Report #22-N-0004, November 12, 2021. The OIG is required by statute to prepare an annual report summarizing what the OIG considers the “most serious management and performance challenges facing the agency.”

FY 2024: Top Management Challenges

Report #24-N-0008, November 15, 2023. The OIG is required by statute to prepare an annual report summarizing what the OIG considers the “most serious management and performance challenges facing the agency.”

FY 2025: Top Management Challenges

At a Glance, November 15, 2024. The OIG is required by statute to prepare an annual report summarizing what the OIG considers the “most serious management and performance challenges facing the agency.”

Nonpoint Source News-Notes

Links to all issues of the Nonpoint Source News-Notes

National Nonpoint Source Monitoring Program

National Program description

Semiannual Report: Oct 1, 2016 - March 31, 2017

Semiannual Report #EPA-350-R-17-001, May, 2017. During the semiannual period, the OIG issued various audit and program evaluation reports with recommendations to help the EPA improve efficiency, as well as better protect people and the environment.

Semiannual Report to Congress: April 1, 2018 - September 30, 2018

Report #EPA-350-R-18-003, November 00, 2018. The EPA OIG is pleased to present this semiannual report for the period ending September 30, 2018. The work produced by our office in the past 6 months was broad in scope and deep in rigor.

Semiannual Report to Congress: October 1, 2019 – March 31, 2020

Report #EPA-350-R-20-001, May 2020. The OIG continues to move steadily forward, conferring with congressional and Agency leadership; issuing reports; and investigating waste, fraud, and abuse.