Data and Tools

Exceptional Events Documents Ozone - Sacramento County, CA

PDF documents associated with ozone exceptional events for Sacramento County, CA.

Exceptional Events Documents PM2.5 - Granite City, IL

PDF documents associated with PM2.5 exceptional events for Granite City, IL.

Exceptional Events Documents Particulate Matter - Klamath Falls, OR

Exceptional Events Documents Ozone - Washoe, Nevada

Exceptional Events Documents PM10 - Las Vegas Valley

Exceptional Events Documents PM10 - Phoenix, AZ

Exceptional Events Documents PM2.5 - Rose Park and West Valley, UT

How the W126 index value is calculated

This is a simple step-by-step guide to show how to calculate a W126 value.

Draft Analyses of PM Data for the PM NAAQS Review - Cover Memo

This is the three-page cover memo summarizing the analyses.

Analyses of 1999 PM Data for the PM NAAQS Review

These files document all analyses conducted in association with the EPA memorandum from Terence Fitz-Simons, Scott Mathias, and Mike Rizzo titled "Analyses of 1999 PM Data for the PM NAAQS Review," November 17, 2000.

Draft Analyses of PM Data for the PM NAAQS Review

These files document all analyses conducted in association with the EPA memorandum from Mark Schmidt, David Mintz, Tesh Rao, and Lance McCluney titled "Draft Analyses of PM Data for the PM NAAQS Review," January 31, 2005.

General Conformity Training Module III: Details

Module III provides detailed information on evaluating conformity.

General Conformity Training Module 4.1: State, Tribal, and Local Involvement

Module 4.1 explains houw State, tribal and local air quality agencies have a number of responsibilities under the General Conformity Regulations and what they are.

Surface Water Quality Modeling Tools

Fourth Unregulated Contaminant Monitoring Rule

This page contains a list of UCMR 4 Contaminants and Analytical Methods

Third Unregulated Contaminant Monitoring Rule

This page contains a list of UCMR 3 Contaminants and Analytical Methods

Environmental Benefits Calculator – Calculations and References

This page describes the calculations used to convert greenhouse gas emission numbers into different types of equivalent units. Go to the environmental benefits calculator page for more information.

Accounting Tool to Support Federal Reporting of Hydrofluorocarbon Emissions

This document provides technical documentation to support the HFC Tool.

COBRA Future Input Files

This page houses links to COBRA input files.

Green Infrastructure Opportunities that Arise During Municipal Operations

This document provides approaches that local government officials and municipal program managers in small to midsize communities can use to incorporate green infrastructure components into work they are doing in public spaces.

Funding Opportunities in the Chesapeake Bay Watershed

This page provides links to financial assistance opportunities to help the Chesapeake Bay jurisdictions (Delaware, District of Columbia, Maryland, New York, Pennsylvania, Virginia, and West Virginia) restore the Chesapeake Bay.