Description: Layer displaying spatial polygons attributed to precipitation stations, used for the Atmospheric River Groundwater Recharge Water Quality Dashboard. Data obtained from California Data Exchange Center, last accessed February 23, 2026. Spatial polygons were created via Thiessen Polygons. Precipitation data obtained from CDEC, all stations with data for at least 95% of requested timeframe.
Service Item Id: 9a5094b518534697bf503c3517f1e4e6
Copyright Text: Data hosted by CDEC, for questions about data, please refer to the link in the description. For questions or comments about the layer, please contact GAMA@waterboards.ca.gov