The City of San Diego’s Public Utilities Department has completed the 2020 Watershed Sanitary Survey, which evaluates any potential water quality issues at the source and will be used as a basis for future watershed management and planning efforts. A watershed is an area of land that drains water into a specific body of water. Everything that is on the land, whether a natural feature or a human activity, is part of the watershed. Issued every five years, the report identifies actual or potential causes of local source water contamination that might adversely affect the quality and treatability of water used by the City. The City’s tap water meets all state and federal drinking water health standards, which are the primary standards for treating and monitoring water.