Hydrologic Studies Chief, Oklahoma Branch, Oklahoma-Texas Water Science Center
Shana has been working for the USGS since 2001 and started as a student Hydrologic Technician. She worked for the USGS Colorado Water Science Center in Denver from 2005 to 2007 on water quality of the South Platte River alluvium and Denver Basin aquifers. Shana served as the Groundwater Specialist of the Oklahoma Water Science Center from 2008-2018. Shana also worked for the Oklahoma Water Survey in Norman, Oklahoma at the University of Oklahoma during 2018 on collaborative hydrologic projects. Her projects in Oklahoma have included studies on alluvial aquifers and bedrock hydrogeology.
Shana worked in a collaborative study team on the Garber-Wellington aquifer, in cooperation with the Oklahoma Water Resources Board, that included potentiometric-surface maps, percent-sand-based geologic framework, groundwater-flow modeling with water-use allocation scenarios. In addition, Shana has been involved in the Rush Springs aquifer studies for the Caddo Nation that included water-level data collection, streambed-conductance measurements, analysis of groundwater/surface-water interactions, springs inventory, and water budget and water-use modeling. She has worked on various water concerns with Tribes across Oklahoma, including the Osage Nation, Absentee Shawnee Tribe, Chickasaw Nation, Pawnee Nation, and Cheyenne and Arapaho Tribes.
Shana has more recently been working with Hydrologists in the Studies Section on various projects throughout the state including hydrogeologic framework and modeling of water quantities of the Boone and Roubidoux aquifers in northeastern Oklahoma and the Arbuckle-Simpson aquifer in south-central Oklahoma.
Education and Certifications
M.S. in Geology, Oklahoma State University, May 2003
B.S. in Geology, Oklahoma State University, May 2000
Honors and Awards
Twenty Years of Service Award (2021) USGS
Science and Products
Karst Aquifers: Arbuckle-Simpson Aquifer
The Arbuckle-Simpson aquifer, which underlies more than 500 square miles in south central Oklahoma, is the principal water source for approximately 39,000 people in several cities in the region. The U.S. Environmental Protection Agency has designated the aquifer's eastern portion as a Sole Source Aquifer, a mechanism to protect drinking water supplies in areas with limited water supply.
Deep Well Monitoring During Seismic Activity
The USGS Oklahoma Water Science Center is working cooperatively with the USGS Earthquake Science Center (California) to monitor real-time downhole pressures, temperatures, and water levels in an effort to understand changes in pore-fluid pressure in the Arbuckle Group associated with seismic activity.
Water Budget Analysis of the Pawnee Tribe Jurisdictional Area in Payne County, OK
The objective of this proposed project is to construct an annual water budget for the Cimarron River alluvial aquifer between USGS streamgages Cimarron River near Ripley, OK and a proposed new USGS streamgage. Components of the water budget (precipitation, [runoff], evapotranspiration, stream base flow, bedrock lateral flow, and groundwater pumping) will be calculated for the 2017 water year...
Boone and Roubidoux Aquifers Study
The objective of the study is to conduct an investigation of the hydrogeology of the Boone and Roubidoux aquifers that will provide information to the Oklahoma Water Resources Board that will enable that agency to determine maximum annual yield of the aquifers based on different proposed management plans.
Groundwater Modeling at the Oklahoma-Texas Water Science Center
The Oklahoma-Texas Water Science Center performs computer simulations using MODFLOW to simulate groundwater/surface-water interaction, quantify groundwater resources, and evaluate the effects of withdrawals on future groundwater supplies for aquifers in Oklahoma and Texas.
Investigation of Hydrogeology and Water Availability in the Osage Nation of Oklahoma
The purpose of this project is to evaluate the spatial distribution and volume of the fresh and brackish (saline) groundwater resources on the Reservation of the Osage Nation in Oklahoma. This investigation will evaluate the sources of water and water use in the Reservation, through activities such as historical water use, characterization of water wells, and predicting the potential effects of...
Subject-Area Specialists
Please feel free to contact any of our subject-area specialists. Center Director/Surface-water specialist - Jason LewisData Chief - VacantStudies Chief - Matthew VaronkaGeographic Information Systems (GIS) specialist - S. Jerrod SmithGroundwater specialist - Shana MashburnWater-quality specialist - Stephanie BuckWater-use specialist - Carol Becker
Interpretive Reports
The Oklahoma Water Science Center publishes water-information reports on many topics and in many formats. From this Web page, you can locate, view, download, or order scientific and technical articles and reports as well as general interest publications such as booklets, fact sheets, pamphlets, and posters resulting from the research performed by our scientists and partners.Scientific...
Oklahoma Water Science Center Publications
This page will help you locate, view, and download scientific and technical articles and reports as well as general interest publications such as booklets, fact sheets, pamphlets, and posters resulting from the research performed by our scientists and partners.The USGS Publications Warehouse contains on-line content and citations for over 100,000 publications.
Other Reports and Data Releases
The Oklahoma Water Science Center publishes water-information reports on many topics and in many formats. From this Web page, you can locate, view, download, or order scientific and technical articles and reports as well as general interest publications such as booklets, fact sheets, pamphlets, and posters resulting from the research performed by our scientists and partners.
Fact Sheets
Fact Sheets are intended as a short publication that provides for rapid publication and dissemination of facts and findings.
Open-File Reports
Open-file reports include unpublished manuscript reports, maps, and other material and are made available for public consultation and use. They are a nonpermanent form of publication that may be cited in other publications as sources of information.
Science and Products
- Publications
- Science
Karst Aquifers: Arbuckle-Simpson Aquifer
The Arbuckle-Simpson aquifer, which underlies more than 500 square miles in south central Oklahoma, is the principal water source for approximately 39,000 people in several cities in the region. The U.S. Environmental Protection Agency has designated the aquifer's eastern portion as a Sole Source Aquifer, a mechanism to protect drinking water supplies in areas with limited water supply.Deep Well Monitoring During Seismic Activity
The USGS Oklahoma Water Science Center is working cooperatively with the USGS Earthquake Science Center (California) to monitor real-time downhole pressures, temperatures, and water levels in an effort to understand changes in pore-fluid pressure in the Arbuckle Group associated with seismic activity.Water Budget Analysis of the Pawnee Tribe Jurisdictional Area in Payne County, OK
The objective of this proposed project is to construct an annual water budget for the Cimarron River alluvial aquifer between USGS streamgages Cimarron River near Ripley, OK and a proposed new USGS streamgage. Components of the water budget (precipitation, [runoff], evapotranspiration, stream base flow, bedrock lateral flow, and groundwater pumping) will be calculated for the 2017 water year...Boone and Roubidoux Aquifers Study
The objective of the study is to conduct an investigation of the hydrogeology of the Boone and Roubidoux aquifers that will provide information to the Oklahoma Water Resources Board that will enable that agency to determine maximum annual yield of the aquifers based on different proposed management plans.Groundwater Modeling at the Oklahoma-Texas Water Science Center
The Oklahoma-Texas Water Science Center performs computer simulations using MODFLOW to simulate groundwater/surface-water interaction, quantify groundwater resources, and evaluate the effects of withdrawals on future groundwater supplies for aquifers in Oklahoma and Texas.Investigation of Hydrogeology and Water Availability in the Osage Nation of Oklahoma
The purpose of this project is to evaluate the spatial distribution and volume of the fresh and brackish (saline) groundwater resources on the Reservation of the Osage Nation in Oklahoma. This investigation will evaluate the sources of water and water use in the Reservation, through activities such as historical water use, characterization of water wells, and predicting the potential effects of...Subject-Area Specialists
Please feel free to contact any of our subject-area specialists. Center Director/Surface-water specialist - Jason LewisData Chief - VacantStudies Chief - Matthew VaronkaGeographic Information Systems (GIS) specialist - S. Jerrod SmithGroundwater specialist - Shana MashburnWater-quality specialist - Stephanie BuckWater-use specialist - Carol BeckerInterpretive Reports
The Oklahoma Water Science Center publishes water-information reports on many topics and in many formats. From this Web page, you can locate, view, download, or order scientific and technical articles and reports as well as general interest publications such as booklets, fact sheets, pamphlets, and posters resulting from the research performed by our scientists and partners.Scientific...Oklahoma Water Science Center Publications
This page will help you locate, view, and download scientific and technical articles and reports as well as general interest publications such as booklets, fact sheets, pamphlets, and posters resulting from the research performed by our scientists and partners.The USGS Publications Warehouse contains on-line content and citations for over 100,000 publications.Other Reports and Data Releases
The Oklahoma Water Science Center publishes water-information reports on many topics and in many formats. From this Web page, you can locate, view, download, or order scientific and technical articles and reports as well as general interest publications such as booklets, fact sheets, pamphlets, and posters resulting from the research performed by our scientists and partners.Fact Sheets
Fact Sheets are intended as a short publication that provides for rapid publication and dissemination of facts and findings.Open-File Reports
Open-file reports include unpublished manuscript reports, maps, and other material and are made available for public consultation and use. They are a nonpermanent form of publication that may be cited in other publications as sources of information. - Data
- Maps