Supplier
EPA/OW
Years Available
2013 to present
Periodicity
Annual
Mode of Collection
Census: reports on all public water systems.
Description
The Safe Drinking Water Information System (SDWIS) databases store information about drinking water. The federal version (SDWIS/FED) stores the information the U.S. Environmental Protection Agency (EPA) needs to monitor approximately 156,000 public water systems.
Population Covered
Persons served by community water systems (CWS).