Welcome to EPA's Data Finder. This site is a single place to find a vast selection of EPA data sources, organized into topics such as air and water that are in easily downloadable formats. Data Finder points to data in downloadable formats to speed up environmental research. For each data source, you can see a basic overview, including the geographic scale and other contextual information, then access the data source itself.
EPA also encourages you to share how the site meets your needs and could be enhanced to help you in the future. Please visit the Data and Developer Forum and share your comments and suggestions.