Environmental Data and Maps

National Maps and Catalogs

WATERS (Watershed Assessment, Tracking & Environmental ResultS) is an integrated information system for the nation's surface waters
National Water Quality Assessment Data Warehouse
The U.S. Geological Survey (USGS) began its NAWQA (National Water Quality Assessment) program in 1991, systematically collecting chemical, biological, and physical water quality data from study units (basins) across the nation. This data warehouse contains data from the first 36 study units
Envirofacts
Provides access to several EPA databases to provide you with information about environmental activities that may affect air, water, and land anywhere in the United States
Window to My Environment
Use interactive maps and tools to answer popular questions about environmental conditions affecting air, land and water in your community; and learn what is being done locally to protect the environment
State Environmental Agencies
Gateway to state environmental and energy agencies. Includes links to some local government environmental offices