Learn the Issues

2023 National Emissions Inventory (NEI) Resources for State, Local, Tribal Agencies

Submittal and preparation documents for state, local, tribal agencies for all data categories of the 2020 National Emissions Inventory

Tribal Clean Water Act Programs and Grants in EPA's Pacific Southwest (Region 9)

EPA's Tribal Water Office in Region 9 manages all grants related to the Clean Water Act for over 100 federally recognized Tribes and provides programmatic and technical assistance for water quality standards and CWA grant programs.

Clean Water Indian Set-Aside Program Contacts

FOIA Assistance and Agency Consultations

FOIA Public Liaison Contact Information

Turkey Creek Human Health Risk Assessment

This report (292-pages), required under the EPA RCRA Corrective Action Program, reviews and evaluates surface water, sediment, and fish data to determine possible chemicals that pose a human health concern.

Superfund Five-Year Review Annual Report to Congress

EPA is responsible for reviewing Superfund remedial actions at least every 5 years where hazardous substances will remain on site above levels that allow for unlimited use and unrestricted exposure. Access the annual reports presented to Congress.

Wildfire Smoke and Your Patients' Health

course objectives for wildfire smoke and your patient's health course

Who is at Increased Risk of Health Effects from Wildfire Smoke Exposure?

Populations and lifestages at greatest risk from wildfire smoke

Strategies to Reduce Exposure Indoors

Steps to take to reduce exposure during a wildfire event

Risk Evaluation for 4,4'-(1-Methylethylidene)bis[2, 6-dibromophenol] (TBBPA)

EPA designated 4,4'-(1-methylethylidene)bis[2, 6-dibromophenol] (TBBPA) as a high priority chemical in December 2019 and the chemical is currently undergoing risk evaluation.

Risk Evaluation for 1,3,4,6,7,8-Hexahydro-4,6,6,7,8,8-hexamethylcyclopenta [g]-2-benzopyran (HHCB)

EPA designated 1,3,4,6,7,8-Hexahydro-4,6,6,7,8,8-hexamethylcyclopenta [g]-2-benzopyran (HHCB) as a high priority chemical in December 2019 and the chemical is currently undergoing risk evaluation.

Economic Analysis of the National Pollutant Discharge Elimination System (NPDES) Electronic Reporting Final Rule

This Economic Analysis (EA) quantifies the costs and savings of the proposed NPDES Electronic Reporting Rule, while acknowledging many of the qualitative benefits that will result from its implementation.

Proposed NPDES Electronic Reporting Rule - Consultations with Indian Tribes

This document describes EPA's Tribal Consultations efforts with the National Tribal Caucus and National Tribal Water Counsel and 563 individual tribes on the Proposed NPDES Electronic Reporting Rule

Compliance Advisory: EPA Regulations About UV Lights that Claim to Kill or Be Effective Against Viruses and Bacteria

Compliance advisory on uv lights

Compliance Advisory: Compliance Concerns Associated with Increasing Oil Storage

Compliance advisory designed to help owners and operators of new and existing oil storage facilities achieve and maintain compliance by better understanding federal regulatory requirements that may apply to their site.

Build Resilience & Adapt to Climate Change Impacts for Drinking Water & Wastewater Utilities Part 2

In this webinar, EPA provides an overview of the CRWU initiative and its tools and resources.

Knowing Your Headworks: Identifying the Pitfalls in Preliminary Treatment

This webinar demonstrates examples of the screening and grit removal equipment as well as troubleshooting and maintenance required of this equipment. The presenters also discuss collection system techniques leading up to the waste coming into the plant.