Northern Sacramento Valley Groundwater Elevation Change Maps

Groundwater Elevation Change Maps summarize the change in groundwater level measurements over time, collected from wells in the northern Sacramento Valley by the Department of Water Resources (DWR) Northern Region Office (NRO) and monitoring cooperators. Northern Sacramento Valley groundwater levels are measured seasonally, during the annual water year, as part of our ongoing data collection program. Many of the wells have over 30 years of monitoring history, with the longest active monitoring well dating back to 1921. Groundwater level data provides valuable information regarding seasonal fluctuations and long-term changes in groundwater level trends over time. The groundwater level data presented in these figures includes the Sacramento Valley and Redding groundwater basin portions of Shasta, Tehama, Butte, Colusa, Glenn, and Sutter counties and are organized by year, season, well depth, and period of change.

Data and Resources

Additional Info

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Field Value
Public Access Level Public
Rights No restrictions on public use
Program Contact Name Debbie Spangler
Program Contact Email [email protected]
Frequency Semiannual
Temporal Coverage

Map figures are created seasonally after measurement collection and data processing.
Last Updated April 17, 2024, 04:11 (UTC)
Created August 11, 2023, 01:26 (UTC)
DCAT Issued Date 2019-01-03T18:10:51.361043
DCAT Modified Date 2022-06-07T18:27:02.866817