EPA Facility Registry Service - National Pollutant Discharge Elimination System Sites (NPDES)

Overview This publicly available FRS data is part of the FRS Sub Facility map service and has been created for ESRI Living Atlas. The Sub facility map service is comprised of the EPA National Pollutant Discharge Elimination Systems Sites (NPDES), authorized by the Clean Water Act by regulating point sources that discharge pollutants into the waters of the United States. The NPDES data set provides outfall locations (or discharge points) of various pollutants into water systems from facilities being monitored by the EPA. The Facility Registry Service (FRS) provides quality facility data to support EPA's mission of protecting human health and the environment by identifying and geospatially locating facilities, sites, or places subject to environmental regulations of environmental interest. Facility data is improved with geospatial processing of incoming data and data curation tools to provide an integrated, dataset to partners and the public through a variety of methods and products. For more detailed information about these facilities, use the FRS Query tool. Feature Layer FRS Interests NPDES: This primary layer contains detailed site-level data including the facility name, location address, city, county, and state codes, along with geographic coordinates standardized to the NAD83 datum. It also includes federal and regional EPA identifiers, environmental interest types related to NPDES permits, program system IDs, and web links to EPA resources for more detailed facility and program information. The data also captures information about the collection and accuracy of location data, activity status of permits, as well as indicators related to public access and federal land ownership. Geographic Coverage The data covers facilities regulated under the NPDES program throughout the United States and its territories. Locations include urban and rural settings, with coverage extending across all U.S. EPA regions, counties, and hydrologic units as identified by federal standards. Use Cases Tracking and managing regulatory compliance of water pollutant discharges. Supporting environmental research and watershed management efforts. Providing public access to information about regulated facilities and their environmental permits. Assisting policymakers and regulators in decision-making related to water quality and pollution control. Data Access and Licensing This dataset is produced by the U.S. EPA and is in the public domain, available for unrestricted use. Users are encouraged to consult associated metadata for data limitations and intended use guidance.