Chicot Aquifer System Extent in Southwestern Louisiana, October 2020

Dates

Publication Date: 2021-05-28

Citation

Bussell, A.M., and Killian, C.D., 2021, Chicot aquifer system extent in southwestern Louisiana, October 2020: U.S. Geological Survey data release, https://doi.org/10.5066/P97V6V5D.

Summary

The Chicot aquifer system underlies an area of approximately 9,500 mi2 in southwestern Louisiana and is located within the Gulf Coastal Plain physiographic province. The region includes all or parts of 15 parishes -- Vernon, Rapides, Evangeline, Allen, Beauregard, Calcasieu, Jefferson Davis, Acadia, St. Landry, Lafayette, St. Martin, Cameron, Iberia, Vermilion, and St. Mary. The Chicot aquifer system is a major source of groundwater for southwestern Louisiana, accounts for approximately 48 percent of all groundwater use in the State, and provides freshwater for public supply, industry, agriculture, and aquaculture (Collier and Sargent, 2018). Withdrawals of groundwater have created water-level gradients favorable for saltwater encroachment, [...]

Summary

The Chicot aquifer system underlies an area of approximately 9,500 mi² in southwestern Louisiana and is located within the Gulf Coastal Plain physiographic province. The region includes all or parts of 15 parishes -- Vernon, Rapides, Evangeline, Allen, Beauregard, Calcasieu, Jefferson Davis, Acadia, St. Landry, Lafayette, St. Martin, Cameron, Iberia, Vermilion, and St. Mary. The Chicot aquifer system is a major source of groundwater for southwestern Louisiana, accounts for approximately 48 percent of all groundwater use in the State, and provides freshwater for public supply, industry, agriculture, and aquaculture (Collier and Sargent, 2018). Withdrawals of groundwater have created water-level gradients favorable for saltwater encroachment, and future water availability and production in the region could be impacted by poor water quality. This product is part of a larger study of the Chicot aquifer system in southwestern Louisiana that will benefit local, State, other Federal cooperators, and stakeholders. The extent given here represents the geographic extent of the Chicot aquifer system in southwestern Louisiana and was created using elevation information from U.S. Geological Survey digital elevation models, surface geology maps, and previously published extents (Lovelace and others, 2004; Casarez, 2020).

Contacts

Originator :: Ashley M Bussell
Publisher :: U.S. Geological Survey
Metadata Contact :: Ashley M Bussell
Point of Contact :: Ashley M Bussell
Cooperator/Partner :: Louisiana Department of Natural Resources, Louisiana Department of Transportation and Development
Contributor :: Courtney D Killian
Distributor :: U.S. Geological Survey - ScienceBase
SDC Data Owner :: Lower Mississippi-Gulf Water Science Center
USGS Mission Area :: Water Resources

Attached Files

sorting

Metadata First

Recent First

Alphabetical

Click on title to download individual files attached to this item.

Chicot_Aquifer_System_Extent_metadata.xml Original FGDC Metadata	View	20.38 KB	application/fgdc+xml

Shapefile: Chicot_Aquifer_System_extent.zip
Chicot_Aquifer_System_extent.zip		204.73 KB
Chicot_Aquifer_System_extent.cpg		5 Bytes
Chicot_Aquifer_System_extent.dbf		8.33 KB
Chicot_Aquifer_System_extent.prj		480 Bytes
Chicot_Aquifer_System_extent.sbn		3.14 KB
Chicot_Aquifer_System_extent.sbx		244 Bytes
Chicot_Aquifer_System_extent.shp		303.01 KB
Chicot_Aquifer_System_extent.shp.xml		42.32 KB
Chicot_Aquifer_System_extent.shx		2.53 KB

Related External Resources

Type: Citation

Collier, A., & Sargent, B. P. (2018). Water use in Louisiana, 2015 (No. 18). Louisiana Department of Transportation and Development.	https://wise.er.usgs.gov/dp/pdfs/WaterUseinLouisiana_2015.pdf

Type: ScienceBase Repository

Casarez, I.R., 2020, Aquifer extents in the coastal lowlands aquifer system regional groundwater availability study area in Texas, Louisiana, Mississippi, Alabama, and Florida, U.S. Geological Survey data release, https://doi.org/10.5066/P9BH2KG2.	https://www.sciencebase.gov/catalog/item/5dc1bb6be4b069579750e2a4

Type: PDF Download

Lovelace, J. K., Fontenot, J. W., & Frederick, C. P. (2004). Withdrawals, water levels, and specific conductance in the Chicot aquifer system in southwestern Louisiana, 2000-03 (No. 2004-5212). US Geological Survey.	https://wise.er.usgs.gov/dp/pdfs/SIR_2004-5212.pdf
Smoot, C. W. (1988). Louisiana hydrologic atlas map no. 3—Altitude of the base of freshwater in Louisiana: US Geological Survey Water-Resources Investigations Report 86–4314, 1 sheet, accessed November 2, 2011.	https://pubs.usgs.gov/wri/1986/4314/plate-1.pdf
Nyman, D. J. (1989). Quality of water in freshwater aquifers in southwestern Louisiana. Louisiana Department of Transportation and Development.	https://wise.er.usgs.gov/dp/pdfs/TR42.pdf
Nyman, D. J. (1989). Quality of water in freshwater aquifers in southwestern Louisiana. Louisiana Department of Transportation and Development. Technical Report No. 4 Plates only.	https://wise.er.usgs.gov/dp/pdfs/TR42Plates1-28.pdf
McFarlan Jr, E., & LeRoy, D. O. (1988). Subsurface geology of the late Tertiary and Quaternary deposits, coastal Louisiana and the adjacent continental shelf.	http://archives.datapages.com/data/gcags/data/038/038001/pdfs/0421.pdf
Louisiana Geological Survey, Paulsell, R. L., & Pond, L. (2010). Louisiana's Principal Freshwater Aquifers. Louisiana Geological Survey, Louisiana State University.	https://www.lsu.edu/lgs/publications/products/PDF/Aquifer-Poster-2010.pdf

Purpose

This polygon dataset of the extent of the Chicot aquifer system in southwestern Louisiana was delineated as a part of the U.S. Geological Survey Chicot Integrated Water Availability Assessment and in partnership with the Louisiana Department of Natural Resources and the Louisiana Department of Transportation.

Chicot Aquifer System Extent in Southwestern Louisiana, October 2020

Dates

Citation

Summary

Summary

Contacts

Attached Files

sorting

Metadata First

Recent First

Alphabetical

Purpose

Map

Spatial Services

Communities

Tags

Provenance

Additional Information

Identifiers

Shapefile Extension

Item Actions

Use Item

View Item as ...

Save Item as ...

View Item...

Dates

Citation

Summary

Summary

Contacts

Attached Files sorting Metadata First Recent First Alphabetical

Related External Resources

Purpose

Map

Spatial Services

Communities

Tags

Provenance

Additional Information

Identifiers

Shapefile Extension

Item Actions

Use Item

View Item as ...

Save Item as ...

View Item...

Attached Files

sorting

Metadata First

Recent First

Alphabetical