THIS JUST IN … NASA Report: San Joaquin Valley Land Continues to Sink

Groundwater Pumping Causes Subsidence, Damages Water Infrastructure From the Department of Water Resources: New NASA radar satellite maps prepared for the California Department of Water Resources (DWR) show that land continues to sink rapidly in certain areas of the San Joaquin Valley, putting state and federal aqueducts and flood control structures at risk of damage. “The rates of San Joaquin […]

» Read more

Groundwater pumping and subsidence in the Central Valley

It’s been called the largest alteration of the earth’s surface.  In the San Joaquin Valley,  since the 1920s, farmers have relied on groundwater to varying degrees, and over time, overpumping of groundwater basin has caused the land to subside – over 30 feet in some locations.  In this presentation, USGS hydrologist Michelle Sneed discusses subsidence in the San Joaquin Valley, […]

» Read more

In her own words: USGS hydrologist discusses subsidence in the Central Valley

Groundwater withdrawals in the Central Valley have caused a 1200-square mile subsidence bowl that is affecting water conveyance and flood control infrastructure, according to the results of a USGS study released yesterday, Land subsidence along the Delta-Mendota Canal in the northern part of the San Joaquin Valley, California.  At yesterday’s news conference on the release of the USGS’s latest report, […]

» Read more

Phil Isenberg on the USGS Report: “Cutbacks in surface water deliveries because of drought or environmental concerns cannot sustainably be replaced or exceeded by continual groundwater extractions”

Phil Isenberg, Chair of the Delta Stewardship Council, issued the following statement regarding the release of the USGS’s latest report showing extensive groundwater pumping from San Joaquin Valley aquifers is increasing the rate of land subsidence, or sinking, potentially causing serious damage to water delivery infrastructure: “This report reinforces the urgency of understanding and better managing California’s groundwater basins. The […]

» Read more

Press release: New USGS study: Renewed land subsidence poses risk to water infrastructure in California’s San Joaquin Valley

From USGS: “Extensive groundwater pumping from San Joaquin Valley aquifers is increasing the rate of land subsidence, or sinking. This large-scale and rapid subsidence has the potential to cause serious damage to the water delivery infrastructure that brings water from the north of the valley to the south where it helps feed thirsty cropland and cities. According to a new […]

» Read more