Groundwater Level Data Viewer

The Groundwater Level Data Viewer was developed as a resource to support well owners and stakeholders with the latest information on groundwater conditions throughout North Kings GSA.

The North Kings GSA has a network of wells throughout the region where groundwater levels are monitored twice annually, in the spring and fall. This monitoring system provides a picture of both historic and current groundwater conditions within the agency.

Through the interactive map, users can select an area with a monitoring well and view a hydrograph showing the Water Surface Elevation.

On this mapping tool, groundwater data is provided using water surface elevations measured in feet. Water surface elevation measures how high the groundwater is at the well location relative to sea level.

A lowering water surface elevation means the groundwater is lowering, indicating declining groundwater levels. A higher water surface elevation means the groundwater is higher in elevation.

In contrast, depth to groundwater is the vertical distance from the land surface to where groundwater is found in a well. Therefore, a higher depth to groundwater number would mean the groundwater table is further below the ground, whereas a lower number means it is closer to the surface.

While this mapping tool does not provide depth to groundwater data readings in the hydrograph, you can find individua depth to water readings at the bottom of the “Well Properties” widget.

For well owners, understanding groundwater conditions can be an important planning tool. Tracking groundwater levels helps anticipate changes in supply and recognize when a well might begin to experience performance issues. In some cases, this information can guide decisions about equipment checks or pump adjustments, such as lowering a pump. Even if no action is immediately needed, understanding local conditions helps well owners plan ahead for possible maintenance adjustments to maintain the reliability of their water supply.

For the North Kings GSA, regular monitoring provides the data needed to assess trends, identify challenges, and ensure compliance with SGMA. The GSA must demonstrate measurable progress toward sustainable groundwater levels by 2040. Biannual readings, taken in the spring and fall, provides groundwater level data for each Sustainable Management Criteria (SMC) well.

Currently, the North Kings GSA uses 34 representative wells located throughout the service area for data collection and reporting. To improve the accuracy of its network, the GSA is also installing new dedicated monitoring wells throughout the region designed specifically to measure groundwater conditions, providing a clearer and more consistent dataset to guide sustainable management decisions.