Data and Tools

How-To Guides To Assemble Your E3 Team

"How-To Guides" lead communities and manufacturers through the process of assembling your E3 team and preparing for an E3 assessment.

HYSPLIT for Exceptional Events

Basic page for more information and link to HYSPLIT tool

Proposed Reporting Requirements for the Sixth Unregulated Contaminant Monitoring Rule (UCMR 6)

This page provides information on reporting requirements for unregulated contaminant monitoring program.

Drinking Water Emerging Contaminant Programs

Assistance for federally recognized Tribes within EPA's Pacific Southwest Region (Region 9) to address emerging contaminants in drinking water.

How to Customize the Tool

How to Use the Managing and Transforming Waste Streams Tool - A Tool for Communities.

Indian Environmental General Assistance Program (GAP) Funding

EPA Region 9 invites Indian Environmental General Assistance Program (GAP) grant proposals from federally recognized Tribal governments and eligible inter-Tribal consortia for Fiscal Year 2026-2027 (FY27) workplan program development activities.

Expedited Modeling of Burn Events Results (EMBER)

Basic page for more information and link to EMBER tool

Exceptional Events Analysis and Visualization Tools

This page contains a list of tools that could help identify days potentially impacted by exceptional events, like wildfire smoke or dust events, and help assess the regulatory significance of excluding such days from design value calculations.

User Guide for the Recycling Infrastructure and Market Opportunities Map

Guidance, details, and examples for using the Recycling Infrastructure and Market Opportunities Map.

TRI Overview

The Toxics Release Inventory (TRI) contains information about more than 650 toxic chemicals that are being used, manufactured, treated, transported, or released into the environment.

Real Water Technical Assistance (RealWaterTA) Request Form

Web Intake Form

CBI Claim Expiration

Notice of expiring CBI claims 2026

EPA Hotlines

Links to EPA hotlines

Ammonia WQS Variance Tools for Small Communities with Lagoon Wastewater Treatment Systems

These tools provide a user-friendly, streamlined way for a state, Tribe, or community to help determine whether a water quality standards variance is appropriate for a small community experiencing lagoon system compliance challenges related to ammonia.