High Plains Aquifer System

URI: https://gptkb.org/entity/High_Plains_Aquifer_System

GPTKB entity

Statements (54)

Predicate	Object
gptkbp:instanceOf	gptkb:reservoir
gptkbp:alsoKnownAs	gptkb:Ogallala_Aquifer
gptkbp:annualWithdrawal	billions of gallons
gptkbp:area	~174,000 square miles
gptkbp:component	gptkb:Ogallala_Formation
gptkbp:composition	gptkb:ceramics sand silt gravel
gptkbp:conservationEfforts	gptkb:legislation crop rotation water-saving irrigation techniques
gptkbp:contains	groundwater
gptkbp:discoveredBy	late 19th century
gptkbp:firstMajorIrrigation	1940s
https://www.w3.org/2000/01/rdf-schema#label	High Plains Aquifer System
gptkbp:importantFor	one of the world’s largest aquifers
gptkbp:irrigatedArea	over 27% of U.S. irrigated land
gptkbp:locatedIn	gptkb:Colorado gptkb:Kansas gptkb:Nebraska gptkb:New_Mexico gptkb:Oklahoma gptkb:South_Dakota gptkb:Texas gptkb:United_States gptkb:Wyoming gptkb:Great_Plains
gptkbp:majorConcern	depletion
gptkbp:managedBy	gptkb:U.S._Geological_Survey
gptkbp:maximumDepth	varies from 30 to 300 feet
gptkbp:monitors	gptkb:U.S._Geological_Survey state water agencies
gptkbp:namedAfter	gptkb:High_Plains_region
gptkbp:providesWaterFor	drinking water irrigation
gptkbp:rechargeRate	very slow
gptkbp:rechargeSources	precipitation surface water infiltration
gptkbp:significance	critical for U.S. food production
gptkbp:studiedBy	hydrologists
gptkbp:supports	gptkb:livestock agriculture municipal water supply
gptkbp:threats	gptkb:dam climate change over-extraction
gptkbp:waterLevelDecline	up to 150 feet in some areas
gptkbp:waterQualityIssues	salinity pesticide contamination nitrate contamination
gptkbp:waterTableDecline	significant since 1950s
gptkbp:bfsParent	gptkb:Ogallala_Aquifer
gptkbp:bfsLayer	6