Allan K Clark
Hydrologist, Oklahoma-Texas Water Science Center
Education and Certifications
Master of Science, Geology (2002) University of Texas San Antonio
Bachelor of Science, Geology (1992) University of Texas San Antonio
Associates Degree, General Studies (1987) Victoria College
Affiliations and Memberships*
Professional Geoscientists License (#5877) The State of Texas
Honors and Awards
Bernold M. "Bruno" Hanson DEG Excellence of Presentation Award (2008) AAPG Annual convention
Thirty Years of Service award (2021) USGS
Science and Products
Karst Aquifers: Pacific Northwest Pseudokarst Aquifers
Karst Interest Group (KIG) Workshop
The Karst Interest Group’s (KIG) mission is to encourage and support collaboration and technology transfer among scientists working in karst areas. The KIG encourages cooperative studies between USGS Programs and Water Science Centers, and between USGS and other Federal agencies, State and local agencies, and universities.
The 9th USGS KIG Workshop will be October 22-24, 2024 in Nashville, TN.
Hydrogeology of the Edwards and Trinity Aquifers within Hays County
Geophysical analysis of the Salmon Peak Formation near Amistad Reservoir Dam, Val Verde County, Texas, and Coahuila, Mexico, March 2006, to aid in piezometer placement
Flow paths in the Edwards aquifer, northern Medina and northeastern Uvalde Counties, Texas, based on hydrologic identification and geochemical characterization and simulation
Geologic Map of the Edwards Aquifer In Northern Medina and Northeastern Uvalde Counties, South-central Texas
Helicopter electromagnetic and magnetic survey data and maps, northern Bexar County, Texas
Geologic framework and hydrogeologic features of the Glen Rose Limestone, Camp Bullis Training Site, Bexar County, Texas
Geologic framework and hydrogeologic characteristics of the Edwards aquifer, Uvalde County, Texas
Vulnerability of ground water to contamination, Edwards Aquifer recharge zone, Bexar County, Texas, 1998
Geologic framework and hydrogeologic characteristics of the Edwards Aquifer outcrop, Medina County, Texas
Geologic framework of the Edwards Aquifer and upper confining unit, and hydrogeologic characteristics of the Edwards Aquifer, south-central Uvalde County, Texas
Science and Products
Karst Aquifers: Pacific Northwest Pseudokarst Aquifers
Karst Interest Group (KIG) Workshop
The Karst Interest Group’s (KIG) mission is to encourage and support collaboration and technology transfer among scientists working in karst areas. The KIG encourages cooperative studies between USGS Programs and Water Science Centers, and between USGS and other Federal agencies, State and local agencies, and universities.
The 9th USGS KIG Workshop will be October 22-24, 2024 in Nashville, TN.
Hydrogeology of the Edwards and Trinity Aquifers within Hays County
Geophysical analysis of the Salmon Peak Formation near Amistad Reservoir Dam, Val Verde County, Texas, and Coahuila, Mexico, March 2006, to aid in piezometer placement
Flow paths in the Edwards aquifer, northern Medina and northeastern Uvalde Counties, Texas, based on hydrologic identification and geochemical characterization and simulation
Geologic Map of the Edwards Aquifer In Northern Medina and Northeastern Uvalde Counties, South-central Texas
Helicopter electromagnetic and magnetic survey data and maps, northern Bexar County, Texas
Geologic framework and hydrogeologic features of the Glen Rose Limestone, Camp Bullis Training Site, Bexar County, Texas
Geologic framework and hydrogeologic characteristics of the Edwards aquifer, Uvalde County, Texas
Vulnerability of ground water to contamination, Edwards Aquifer recharge zone, Bexar County, Texas, 1998
Geologic framework and hydrogeologic characteristics of the Edwards Aquifer outcrop, Medina County, Texas
Geologic framework of the Edwards Aquifer and upper confining unit, and hydrogeologic characteristics of the Edwards Aquifer, south-central Uvalde County, Texas
*Disclaimer: Listing outside positions with professional scientific organizations on this Staff Profile are for informational purposes only and do not constitute an endorsement of those professional scientific organizations or their activities by the USGS, Department of the Interior, or U.S. Government