Groundwater Levels in Yolo County

May contain: plot, map, diagram, and atlas

Groundwater Data Map

View data from any well in the Yolo Subbasin. The YSGA monitoring network contains over 500 wells that are either measured continuously (red dots) or twice a year (blue dots). 69 wells (yellow) are reported to the state for compliance with SGMA.

Fall 2022 Groundwater Levels in YCFCWCD Service Area

Groundwater levels are measured in the YCFCWCD's 160 well network each spring and fall. The graph above shows the average groundwater level of the wells with long periods-of-record. This fall's levels showed a significant decline, as expected, after a dry winter and spring prevented the district from providing any surface water for irrigation in 2022.