303(d) Impaired Waterbodies

This layer displays impaired waterbodies, which means waterbodies not able to be used for certain purposes due to water quality from physical, chemical and biological factors.

Water Monitoring Locations

This layer displays GIS data from EPA Office of Water STORET Warehouse. Reach indexed NPDES locations comprise two basic types: facilities and pipes. For a given NPDES permit, the program may have locational information on the facility alone or specific … Continued

Avian Flu Outbreaks

This layer displays the number of outbreaks of avian flu and the affected flock size by county since 2022. Data is updated weekly.

Dominant Language Spoken at Home

This layer displays the predominant language spoken at home (excluding English) for towns and counties in the United States. Data are from the 2018-22 American Community Survey.