Kristi L Hill
Krist Hill is a Hydrologist for the Lower Mississippi Water Science Center, working primary in Tennessee, Nashville.
She started at the Menlo Park, CA regional office working with trace metalsprimary in surface water.
Kristi is currently working out of theTennessee, Nashville, TN office on projects primarily in the middle Tennessee area.
Her more recent work is focused on harmful algal bloom effects on surface water influenced groundwater and water quality monitoring in surface and groundwater systems.
Science and Products
Chemical extraction data for oil and gas wastewater study samples from Blacktail Creek, North Dakota, and Wolf Creek, West Virginia Chemical extraction data for oil and gas wastewater study samples from Blacktail Creek, North Dakota, and Wolf Creek, West Virginia
Sediment samples from sites affected by environmental releases of wastewater from oil and gas production were examined to determine sorbed versus mineral structure associations of barium, radium, strontium, and other elements. Archive samples were used from work at Blacktail Creek, North Dakota and Wolf Creek, West Virginia. The Blacktail Creek samples are described in publications and...
Cyanobacterial Toxin Concentrations from Solid Phase Adsorption Toxin Tracking (SPATT) Samplers, Water, and Field Water-Quality Data from Monitoring Sites on the Clinch River from 2020-2023 Cyanobacterial Toxin Concentrations from Solid Phase Adsorption Toxin Tracking (SPATT) Samplers, Water, and Field Water-Quality Data from Monitoring Sites on the Clinch River from 2020-2023
In cooperation with the Tennessee Wildlife Resources Agency (TWRA) and University of Tennessee Knoxville (UTK), the U.S. Geological survey (USGS) collected cyanobacterial toxin concentrations (i.e., microcystin, anatoxin, cylindrospermopsin, and saxitoxin) and water-quality field data at 4 sites on the Clinch River from November 2020 to December 2023. The goal for the sample data was to...
Cyanobacterial Toxin Concentrations from Solid Phase Adsorption Toxin Tracking (SPATT) Samplers, Water, and Field Water-Quality Data from North-central Tennessee Reservoirs and Two Wells from 2022-2024 Cyanobacterial Toxin Concentrations from Solid Phase Adsorption Toxin Tracking (SPATT) Samplers, Water, and Field Water-Quality Data from North-central Tennessee Reservoirs and Two Wells from 2022-2024
In cooperation with the Tennessee Department of Environment and Conservation (TDEC), the U.S. Geological Survey (USGS) measured cyanobacterial toxin concentrations (i.e., microcystin, anatoxin, cylindrospermopsin, and saxitoxin) and collected water-quality field data at 18 sites in North-central Tennessee from August 2022 to November 2024. Additionally, selected sites also were sampled...
Atmospheric fallout radionuclide data for soil cores from four uranium mine sites, Mohave County, Arizona, November 2018 Atmospheric fallout radionuclide data for soil cores from four uranium mine sites, Mohave County, Arizona, November 2018
The data represent sediment depth profiles of gamma-emitting radionuclides cesium-137 (Cs-137), lead-210 (Pb-210), lead-214 (Pb-214), and bismuth-214 (Bi-214) in native soil locations around four mineralized sites in Mohave County, Arizona. The four sites represent breccia pipe uranium deposits in the Grand Canyon Region in various lifecycle stages of mining: EZ2 complex (exploration)...
Thickness of the Chicot aquifer system of southwestern Louisiana's surficial confining unit and shallow sand lenses Thickness of the Chicot aquifer system of southwestern Louisiana's surficial confining unit and shallow sand lenses
The Chicot aquifer system is a vital water resource for Southwestern Louisiana, providing nearly half of the fresh groundwater the region consumes (Sargent, 2011). The aquifer’s surficial confining unit consists of a wedge-shaped thickening sequence of south to southeastern dipping, interbedded clays and coarser material (primarily sand and gravel). In collaboration with the Louisiana...
Dissolved arsenic, copper, and lead concentrations in surface water within the Klamath Basin (ver. 3.0, October 2022) Dissolved arsenic, copper, and lead concentrations in surface water within the Klamath Basin (ver. 3.0, October 2022)
Arsenic (As) toxicity is a global environmental and health problem. There are both natural (eg volcanic activity) and anthropogenic sources of As (eg lead arsenate and copper arsenate were commonly used pesticides in the 1900's). Aqueous levels of arsenic in the Klamath Basin (CA, OR), which has a volcanic origin, can exceed at some locations both the Oregon Department of Environmental...
Science and Products
Chemical extraction data for oil and gas wastewater study samples from Blacktail Creek, North Dakota, and Wolf Creek, West Virginia Chemical extraction data for oil and gas wastewater study samples from Blacktail Creek, North Dakota, and Wolf Creek, West Virginia
Sediment samples from sites affected by environmental releases of wastewater from oil and gas production were examined to determine sorbed versus mineral structure associations of barium, radium, strontium, and other elements. Archive samples were used from work at Blacktail Creek, North Dakota and Wolf Creek, West Virginia. The Blacktail Creek samples are described in publications and...
Cyanobacterial Toxin Concentrations from Solid Phase Adsorption Toxin Tracking (SPATT) Samplers, Water, and Field Water-Quality Data from Monitoring Sites on the Clinch River from 2020-2023 Cyanobacterial Toxin Concentrations from Solid Phase Adsorption Toxin Tracking (SPATT) Samplers, Water, and Field Water-Quality Data from Monitoring Sites on the Clinch River from 2020-2023
In cooperation with the Tennessee Wildlife Resources Agency (TWRA) and University of Tennessee Knoxville (UTK), the U.S. Geological survey (USGS) collected cyanobacterial toxin concentrations (i.e., microcystin, anatoxin, cylindrospermopsin, and saxitoxin) and water-quality field data at 4 sites on the Clinch River from November 2020 to December 2023. The goal for the sample data was to...
Cyanobacterial Toxin Concentrations from Solid Phase Adsorption Toxin Tracking (SPATT) Samplers, Water, and Field Water-Quality Data from North-central Tennessee Reservoirs and Two Wells from 2022-2024 Cyanobacterial Toxin Concentrations from Solid Phase Adsorption Toxin Tracking (SPATT) Samplers, Water, and Field Water-Quality Data from North-central Tennessee Reservoirs and Two Wells from 2022-2024
In cooperation with the Tennessee Department of Environment and Conservation (TDEC), the U.S. Geological Survey (USGS) measured cyanobacterial toxin concentrations (i.e., microcystin, anatoxin, cylindrospermopsin, and saxitoxin) and collected water-quality field data at 18 sites in North-central Tennessee from August 2022 to November 2024. Additionally, selected sites also were sampled...
Atmospheric fallout radionuclide data for soil cores from four uranium mine sites, Mohave County, Arizona, November 2018 Atmospheric fallout radionuclide data for soil cores from four uranium mine sites, Mohave County, Arizona, November 2018
The data represent sediment depth profiles of gamma-emitting radionuclides cesium-137 (Cs-137), lead-210 (Pb-210), lead-214 (Pb-214), and bismuth-214 (Bi-214) in native soil locations around four mineralized sites in Mohave County, Arizona. The four sites represent breccia pipe uranium deposits in the Grand Canyon Region in various lifecycle stages of mining: EZ2 complex (exploration)...
Thickness of the Chicot aquifer system of southwestern Louisiana's surficial confining unit and shallow sand lenses Thickness of the Chicot aquifer system of southwestern Louisiana's surficial confining unit and shallow sand lenses
The Chicot aquifer system is a vital water resource for Southwestern Louisiana, providing nearly half of the fresh groundwater the region consumes (Sargent, 2011). The aquifer’s surficial confining unit consists of a wedge-shaped thickening sequence of south to southeastern dipping, interbedded clays and coarser material (primarily sand and gravel). In collaboration with the Louisiana...
Dissolved arsenic, copper, and lead concentrations in surface water within the Klamath Basin (ver. 3.0, October 2022) Dissolved arsenic, copper, and lead concentrations in surface water within the Klamath Basin (ver. 3.0, October 2022)
Arsenic (As) toxicity is a global environmental and health problem. There are both natural (eg volcanic activity) and anthropogenic sources of As (eg lead arsenate and copper arsenate were commonly used pesticides in the 1900's). Aqueous levels of arsenic in the Klamath Basin (CA, OR), which has a volcanic origin, can exceed at some locations both the Oregon Department of Environmental...