Data and Tools

Learn about Regional SDAMs

Streamflow Duration Assessment Methods are rapid field methods using hydrological, geomorphological, and biological indicators, observable in one site visit, to classify streamflow duration as perennial, intermittent, or ephemeral at the stream reach scale

TracMyAir

TracMyAir is a web application air pollution exposure model that estimates a person’s daily exposure to outdoor-generated fine particulate matter (PM2.5) and ozone. The TracMyAir web app is an efficient and cost-effective tool for researchers.

Greenhouse Gas Equivalencies Calculator - Revision History

Describes the updates made to the Greenhouse Gas Equivalencies Calculator since it was first posted on EPA’s website in February 2008.

Air Toxics Monitoring National Program Reports

This page contains links to associated documents linked to on main Air Toxics monitoring page.

MOFAT: A Two-Dimensional Finite Element Program for Multiphase Flow and Multicomponent Transport

MOFAT is a two-dimensional, finite element model for simulating coupled multiphase flow and multi-component transport in planar or radically symmetric vertical sections.

State Designations for 2008 Lead Standards

Tables displaying States and areas of non-attainment of 2008 Lead Standard.

Hydrocarbon Spill Screening Model (HSSM) en Español

HSSM simula el flujo de la fase LNAPL (líquidos livianos en fase no acuosa) y el transporte de un componente químico por estos líquidos desde la superficie hasta las napas freáticas.

Structured Decision Making: Increasing Community Resilience

This Structured Decision Making StoryMap explains the six-step SDM process and provides guidance for its use. Each section of the StoryMap provides details about a different step of the SDM process, supported by case study examples from across the U.S.

Community Case Studies: Practical Applications of Ecosystem Services and Structured Decision Making

Community Case Studies: Practical Applications of Ecosystem Services and Structured Decision Making tells the story of communities across the U.S. that have worked with EPA to address diverse community challenges using SDM concepts. This StoryMap uses maps

Virus Fate and Transport (Virulo) Model

This is a probabilistic screening model for predicting leaching of viruses in unsaturated soils.

Capture Zone Analytic Element Model (CZAEM)

CZAEM is a single-layer model for simulating steady flow in homogeneous aquifers using the Analytic Element Method. CZAEM generates output on ground water capture zones and residence times.

Non-aqueous Phase Liquid (NAPL) Simulator

NAPL Simulator conducts a simulation of the contamination of soils and aquifers that results from the release of organic liquids commonly referred to as nonaqueous-phase liquids.

Finding and Managing Your Uploaded Files

Files, or media, may include images, audio, video, and documents. Learn how to locate and manage files you have previously uploaded to the WebCMS using the Media tab.

Required SIP Elements by Nonattainment Classification

SIP requirements by classification

Basic QA Tests for Web Council Staff

WebCMS users can help QA new code deployed to the EPA staging WebCMS prior to that code being deployed to the live site.

Timeline of Particulate Matter (PM) National Ambient Air Quality Standards (NAAQS)

The table includes federal register citations for each revision to the national ambient air quality standards (NAAQS) for particulate matter (PM), and acceptable total suspended particles.

Meaningful Analysis of the Fiscal Year 2013 Service Contract Inventory

This page contains the Meaningful Analysis of the Fiscal Year 2013 Service Contract Inventory for the EPA's Service Contract Inventory.

Summary of Georgia's Water Reuse Guideline or Regulation for Potable Water Reuse

Georgia (State Regulation) | Source water: Treated municipal wastewater | End use: Potable Water Reuse

Summary of Georgia's Water Reuse Guideline or Regulation for Agriculture

Georgia (State Regulation) | Source water: Treated municipal wastewater | End use: Agriculture

Summary of Georgia's Water Reuse Guideline or Regulation for Landscaping

Georgia (State Regulation) | Source water: Treated municipal wastewater | End use: Landscaping