Hydrologic region
San Joaquin River hydrologic region
Central Valley region with significant groundwater and surface-water planning.
Why this boundary matters
Water management does not always follow counties or watersheds. This region is used for water planning, groundwater management or regulation. Its boundary may differ from the land that drains to a river.
- State
- California
- Current plan records
- 1
- Communities covered here
- 1
Connected communities