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of the valley. Temperature data from monitoring wells indicate that horizontal groundwater flow occurs primarily above 775 ft. (236 m) in southern-central regions and above 510 ft. (160 m) in southeastern areas. Faults also play a big role in how water is control depending on the sediments permeability, the Silver Creek fault creates seasonal subsidence or uplift on the west side or long term uplift on the east side. The Uplift has been associated with the dam on the eastern side of the Valley.
825:
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within the area which is bound by the topography of the region. The faults in the region also play a role in how groundwater is control which furthermore subdivides the aquifer into three sub regions. The hydrogeology of the aquifer has been significantly altered by surface water which is treated and recharged to the aquifer while also providing water to local users.
65:
dropped more than 200 ft (61 m). The decreasing pressure heads resulted in land subsidence of up to 15 ft. (4.6 m). Santa Clara Water Valley
District and other water purveyors have work to refined management practices which have halted land subsidence. During the 1960s due to the substantial decrease in ground water the SCWVD began to import surface water. The
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units. Water bearing units are generally coarse-grained and separated by relatively fine-grained units. The thicknesses of coarse-grained sections vary between 10 and 25 ft. (3.0 and 7.6 m) in the southeast and between 50 and 200 ft. (15 and 61 m) in the south-central and southwestern areas
121:
Decades of ground water depletion due to urban development and agriculture resulted in substantial land subsidence. The Santa Clara Valley Water
District in part with other water purveyors have replenished ground water levels by artificial recharge which is occurring in the upper 500 ft. of the
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Subsidence has been a key issue in the region which led to 17 square miles of dry land to sink beneath high tide levels in the 1969, this region was adjacent to the San
Francisco Bay. The region is now heavily rigged with ring dikes and control levees which work as flood control and prevent landward
112:
The effort conducted in the valley has to halt subsidence which resulted in uplift from 1992 to 1998 the mean uplifted surveyed was 6.4 ± 2.2mm/yr which was noted in
Sunnyvale and east San Jose. However, there is still a lot of land deformation from subsidence, but not notable from fault movement.
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In the early parts of the 20th century the Santa Clara Valley was a vegetable and fruit growing region. Ground water was pumped heavily and led to the Santa Clara valley to be the first region recognized to be affected by land subsidence in the 1940s. Between 1912 and 1966 artesian pressure levels
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The quality of the groundwater is considered as "good", but if the demand for ground water exceeds the amount replenished. This would increase the risk of sea water intrusion which could alter the compositions of the aquifer which may degrade the water quality. The characteristic of the water is
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Percolation ponds were built in the margins of the Santa Clara Valley to help increase the rate of recharge to utilize rainfall runoff. However, the
Percolation pond did not produce any uplift, due to the compacted interbeds of the upper aquifer. Recharge wells pump treated water into the confide
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The groundwater aquifer can be separated into two major regions the Upper and lower aquifer. The alluvial boundary which surrounds the valley allows for water to permeate through the ground which then flows horizontally into the confine region of the aquifer. This system creates a convergent flow
238:"Wells and water levels in principal ground-water basins in Santa Barbara County, California: Part 1, Carpinteria, Goleta, and Santa Ynez Valleys, 1930-41; Part 2, San Antonio, Santa Maria, and Cuyama Valleys, 1920-41"
156:"Wells and water levels in principal ground-water basins in Santa Barbara County, California: Part 1, Carpinteria, Goleta, and Santa Ynez Valleys, 1930-41; Part 2, San Antonio, Santa Maria, and Cuyama Valleys, 1920-41"
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movement of salt water. Land subsidence created a need for controlling stream channels to ensure water flowed into the Bay. The majority of land subsidence has occurred in the confide region of the aquifer.
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317:"Time-dependent land uplift and subsidence in the Santa Clara Valley, California, from a large interferometric synthetic aperture radar data set: SANTA CLARA VALLEY INSAR TIME SERIES"
140:
identified to be
Calcium bicarbonate which occurs in the region of 200 ft and above the subsurface while in-between 200 –1000 ft it is Id as sodium bicarbonate
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404:"Geologic, water-chemistry, and hydrologic data from multiple-well monitoring sites and selected water-supply wells in the Santa Clara Valley, California, 1999-2003"
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Well core data indicate that the Santa Clara valley aquifer consists of between four and six different water bearing units. The aquifer is composed of both
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The majority of notable uplift has been noted to be in the southern most region of the confined zone of the aquifer which has been seen as seasonal.
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Newhouse, M.W.; Hanson, R.T.; Wentworth, C.M.; Everett, Rhett R.; Williams, C.F.; Tinsley, J.C.; Noce, T.E.; Carkin, B.A. (2004).
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of permeable and impermeable units. Management of aquifer resources is associated with the
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48:. The geology of the Santa Clara valley aquifer consists of a complex
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provide the surface water which has been beneficial to the region.
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Devin
Galloway, David R. Jones, S.E Ingebritsen (2001-07-09).
355:"Hydrologic framework of the Santa Clara Valley, California"
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Schmidt, David A.; BĂĽrgmann, Roland (September 2003).
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856:Bodies of water of Santa Clara County, California
438:"State Water Project | Santa Clara Valley Water"
281:"State Water Project | Santa Clara Valley Water"
131:region of the water which have produced uplift.
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321:Journal of Geophysical Research: Solid Earth
222:: CS1 maint: multiple names: authors list (
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861:Geology of Santa Clara County, California
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866:Geography of the San Francisco Bay Area
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210:Land Subsidence in the United States
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54:Santa Clara Valley Water District
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408:Scientific Investigations Report
722:Nubian Sandstone Aquifer System
71:California State water project
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785:Aquifers in the United States
790:Aquifer storage and recovery
537:Buried Valley Aquifer System
353:Hanson, R.T. (2015-06-01).
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587:Santa Clara valley aquifer
38:Santa Clara valley aquifer
31:Santa Clara valley aquifer
818:
557:Kirkwood–Cohansey aquifer
77:Hydrogeological framework
44:located in the southern
506:Laurentian River System
92:confined and unconfined
851:Aquifers in California
738:Yarkon-Taninim Aquifer
717:Lotikipi Basin Aquifer
597:Southern Hills Aquifer
261:Cite journal requires
179:Cite journal requires
86:Hydrogeology structure
67:Central Valley Project
46:San Francisco Bay Area
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21:Overview of the valley
501:Arkell Spring Grounds
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670:Great Artesian Basin
660:Botany Sands Aquifer
333:10.1029/2002JB002267
203:"Santa Clara Valley"
805:Sole Source Aquifer
592:Snake River Aquifer
577:San Diego Formation
552:Fox Hills Formation
442:www.valleywater.org
416:10.3133/sir20045250
371:2015Geosp..11..606H
285:www.valleywater.org
126:Artificial Recharge
680:Yarragadee Aquifer
511:Oak Ridges Moraine
380:10.1130/GES01104.1
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810:Surficial aquifer
764:Upper Rhine Plain
712:Bas Saharan Basin
212:– via USGS.
40:is a groundwater
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800:Artesian aquifer
780:List of aquifers
773:Related articles
696:Waiwhetu Aquifer
567:Ogallala Aquifer
547:Floridan aquifer
527:Biscayne Aquifer
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445:. Retrieved
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50:stratigraphy
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731:Middle-East
689:New Zealand
644:Hamza River
108:Land Uplift
845:Categories
447:2022-05-13
290:2022-05-10
144:References
117:Management
653:Australia
424:2328-0328
389:1553-040X
359:Geosphere
829:Category
607:Wekepeke
487:Aquifers
240:. 1950.
158:. 1950.
69:and the
367:Bibcode
60:History
42:aquifer
747:Europe
705:Africa
616:Mexico
494:Canada
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327:(B9).
206:(PDF)
420:ISSN
385:ISSN
267:help
224:link
185:help
36:The
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
