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 Karst Interest Group (KIG) Workshop
Hydrogeology of the Edwards and Trinity Aquifers within Hays County
Geologic framework and hydrogeologic characteristics of the Glen Rose limestone, Camp Stanley Storage Activity, Bexar County, Texas Geologic framework and hydrogeologic characteristics of the Glen Rose limestone, Camp Stanley Storage Activity, Bexar County, Texas
An Integrated Hydrogeologic and Geophysical Investigation to Characterize the Hydrostratigraphy of the Edwards Aquifer in an Area of Northeastern Bexar County, Texas An Integrated Hydrogeologic and Geophysical Investigation to Characterize the Hydrostratigraphy of the Edwards Aquifer in an Area of Northeastern Bexar County, Texas
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 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 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 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 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 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 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 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 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 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 Karst Interest Group (KIG) Workshop
Hydrogeology of the Edwards and Trinity Aquifers within Hays County
Geologic framework and hydrogeologic characteristics of the Glen Rose limestone, Camp Stanley Storage Activity, Bexar County, Texas Geologic framework and hydrogeologic characteristics of the Glen Rose limestone, Camp Stanley Storage Activity, Bexar County, Texas
An Integrated Hydrogeologic and Geophysical Investigation to Characterize the Hydrostratigraphy of the Edwards Aquifer in an Area of Northeastern Bexar County, Texas An Integrated Hydrogeologic and Geophysical Investigation to Characterize the Hydrostratigraphy of the Edwards Aquifer in an Area of Northeastern Bexar County, Texas
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 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 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 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 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 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 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 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 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 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