Check out the Limitations section of this tab to make sure it includes the data we're looking for.
Tap Score US Water Utilities Map - this is an open source map that displays water system boundaries of community water systems (services more than 25 people or at least 15 service connections year-round). It looks like it pulls from the Water Boards (DDW) (so maybe we pull directly from there?)- but then approximates or models boundaries where they are not publicly available or do not exist
Requested by OPP Be sure to check in with SGMA team Potential to get layers directly from SGMA Data Viewer