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Groundwater Data & Monitoring

Northern and North Central Regions
Land Subsidence Data

   Land Subsidence Data
DWR is engaged in an ongoing program with Sacramento Valley counties to improve data collection and understanding of the aquifer system. DWR has installed and operates thirteen extensometer stations in the northern Sacramento Valley: 3 in Glenn County, 5 in Butte County, 2 in Colusa County, 1 in Sutter County, and 2 in Yolo County (see station locations). In addition, through cooperative efforts, GPS baseline surveys have been conducted in the Tulelake Basin, as well as Glenn and Yolo counties.

   Glenn County GPS Project (1559 K PDF)

   Yolo Subsidence Monitoring Project

If posted PDF files are not in an accessible text based format, please request an accessible version via the Comments and Suggestion page.

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