Groundwater is the sole source for water use to the rural community and two Native American tribes in the Cahuilla Valley and Terwilliger Valley groundwater basins, which are located approximately 35 miles southwest of Palm Springs, California.
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Anza Valley, CA
Groundwater is the sole source for water use to the rural community and two Native American tribes in the Cahuilla Valley and Terwilliger Valley groundwater basins, which are located approximately 35 miles southwest of Palm Springs, California.
Aquifer Compaction
Fine-grained sediments (clays and silts) within an aquifer system are the main culprits in land subsidence due to groundwater pumping. Fine-grained sediments are special because they are composed of platy grains. When fine-grained sediments are originally deposited, they tend to be deposited in random orientations.
Fine-grained sediments (clays and silts) within an aquifer system are the main culprits in land subsidence due to groundwater pumping. Fine-grained sediments are special because they are composed of platy grains. When fine-grained sediments are originally deposited, they tend to be deposited in random orientations.
Map of study area, Yucca Valley, California.
Map of study area, Yucca Valley, California.
Map of study area, Yucca Valley, California.
Land Subsidence in the San Joaquin Valley
Approximate point of maximum subsidence in the San Joaquin Valley, California. Land surface subsided ~9 m from 1925 to 1977 due to aquifer-system compaction. Signs on the telephone pole indicate the former elevations of the land surface in 1925 and 1955.
Photograph by Richard Ireland, U.S. Geological Survey
Approximate point of maximum subsidence in the San Joaquin Valley, California. Land surface subsided ~9 m from 1925 to 1977 due to aquifer-system compaction. Signs on the telephone pole indicate the former elevations of the land surface in 1925 and 1955.
Photograph by Richard Ireland, U.S. Geological Survey
Hooe Building
The Hooe Building
Location
- Address: 16th Street NW, Washington, D.C., at the corner of 16th and H Streets NW.
- Current Reference: The site is now known as the Hooe Building (Historical).
Historical Background
The Hooe Building
Location
- Address: 16th Street NW, Washington, D.C., at the corner of 16th and H Streets NW.
- Current Reference: The site is now known as the Hooe Building (Historical).
Historical Background