Angela Crain
Hydrologist, Ohio-Kentucky-Indiana Water Science Center
Science and Products
Filter Total Items: 19
Status and trends of total nitrogen and total phosphorus concentrations, loads, and yields in streams of Mississippi, water years 2008–18
To assess the status and trends of conditions of surface waters throughout Mississippi, the U.S. Geological Survey, in cooperation with the Mississippi Department of Environmental Quality (MDEQ), summarized concentrations and estimated loads, yields, trends, and spatial and temporal patterns of total nitrogen (TN) and total phosphorus (TP) at 20 stream sites in MDEQ’s ambient water-quality monitor
Authors
Matthew B. Hicks, Angela S. Crain, Natalie G. Segrest
The importance of U.S. Geological Survey water-quality super gages
Super gages are an important tool providing real-time, continuous water-quality data at streamgages or groundwater wells. They are designed to address specific water-resource threats such as water-related human health issues including harmful algal blooms, floods, droughts, and hazardous substance spills. In addition, super gages improve our understanding of the effects land-use practices have on
Authors
Angela S. Crain
Potential interaction of groundwater and surface water including autonomous underwater vehicle reconnaissance at Nolin River Lake, Kentucky, 2016
The U.S. Geological Survey collaborated with the U.S. Army Corps of Engineers, Louisville District, on a synoptic study of water quality at Nolin River Lake during August 2016. The purpose of the study was to develop a better understanding of the potential for interaction between groundwater and surface water at Nolin River Lake, Kentucky. Groundwater can have properties that are measurably differ
Authors
Angela S. Crain, Justin A. Boldt, Randall E. Bayless, Aubrey R. Bunch, Jade L. Young, Jennifer C. Thomason, Zachary L. Wolf
Multiple-source tracking: Investigating sources of pathogens, nutrients, and sediment in the Upper Little River Basin, Kentucky, water years 2013–14
The South Fork Little River (SFLR) and the North Fork Little River (NFLR) are two major headwater tributaries that flow into the Little River just south of Hopkinsville, Kentucky. Both tributaries are included in those water bodies in Kentucky and across the Nation that have been reported with declining water quality. Each tributary has been listed by the Kentucky Energy and Environment Cabinet—Ke
Authors
Angela S. Crain, Mac A. Cherry, Tanja N. Williamson, Aubrey R. Bunch
Water quality and natural resources in the Green River Basin
No abstract available.
Authors
Brad D. Lee, Tanja N. Williamson, Angela S. Crain
Determination of (4-methylcyclohexyl)methanol isomers by heated purge-and-trap GC/MS in water samples from the 2014 Elk River, West Virginia, chemical spill
A heated purge-and-trap gas chromatography/mass spectrometry method was used to determine the cis- and trans-isomers of (4-methylcyclohexyl)methanol (4-MCHM), the reported major component of the Crude MCHM/Dowanol™ PPh glycol ether material spilled into the Elk River upriver from Charleston, West Virginia, on January 9, 2014. The trans-isomer eluted first and method detection limits were 0.16-μg L
Authors
William T. Foreman, Donna L. Rose, Douglas B. Chambers, Angela S. Crain, Lucinda K. Murtagh, Haresh Thakellapalli, Kung K. Wang
Breakpoint analysis and relations of nutrient and turbidity stressor variables to macroinvertebrate integrity in streams in the Crawford-Mammoth Cave Uplands Ecoregion, Kentucky, for the development of nutrient criteria
To assist Kentucky in refining numeric nutrient criteria in the Pennyroyal Bioregion, the U.S. Geological Survey and the Kentucky Division of Water collected and analyzed water chemistry, turbidity, and biological-community data from 22 streams throughout the Crawford-Mammoth Cave Upland ecoregion (U.S. Environmental Protection Agency Level IV Ecoregion, 71a) within the Pennyroyal Bioregion from S
Authors
Angela S. Crain, Brian J. Caskey
Nutrients, Select Pesticides, and Suspended Sediment in the Karst Terrane of the Sinking Creek Basin, Kentucky, 2004-06
This report presents the results of a study by the U.S. Geological Survey, in cooperation with the Kentucky Department of Agriculture, on nutrients, select pesticides, and suspended sediment in the karst terrane of the Sinking Creek Basin.
Streamflow, nutrient, select pesticide, and suspended-sediment data were collected at seven sampling stations from 2004 through 2006. Concentrations of nitri
Authors
Angela S. Crain
Concentrations, and estimated loads and yields of total nitrogen and total phosphorus at selected water-quality monitoring network stations in Kentucky, 1979-2004
To evaluate the State’s water quality, the Kentucky Division of Water collects data from a statewide network of primary ambient stream water-quality monitoring stations and flexible, rotating watershed-monitoring stations. This ambient stream water-quality monitoring network program is directed to assess the conditions of surface waters throughout Kentucky. Water samples were collected monthly for
Authors
Angela S. Crain, Gary R. Martin
Trends in Surface-Water Quality at Selected Ambient-Monitoring Network Stations in Kentucky, 1979-2004
Increasingly complex water-management decisions require water-quality monitoring programs that provide data for multiple purposes, including trend analyses, to detect improvement or deterioration in water quality with time. Understanding surface-water-quality trends assists resource managers in identifying emerging water-quality concerns, planning remediation efforts, and evaluating the effectiven
Authors
Angela S. Crain, Gary R. Martin
Concentrations, and estimated loads and yields of nutrients and suspended sediment in the Little River basin, Kentucky, 2003-04
Nutrients, primarily nitrogen and phosphorus compounds, naturally occur but also are applied to land in the form of commercial fertilizers and livestock waste to enhance plant growth. Concentrations, estimated loads and yields, and sources of nitrite plus nitrate, total phosphorus, and orthophosphate were evaluated in streams of the Little River Basin to assist the Commonwealth of Kentucky in deve
Authors
Angela S. Crain
Occurrence, distribution, loads, and yields of selected pesticides in the Little River basin, Kentucky, 2003-04
Water resources in the Little River Basin are potentially vulnerable to applications of pesticides associated with both agricultural and nonagricultural activities, because much of the basin is characterized by karst topography. Concerns about water quality resulting from pesticide use in karst areas and lack of data on concentrations of pesticides in surface water led to further investigation of
Authors
Angela S. Crain
Kentucky River at Lock 2 at Lockport KY
Water-quality “super” gages (also known as “sentry” gages) provide real-time, continuous measurements of the physical and chemical characteristics of stream water at or near selected U.S. Geological Survey (USGS) streamgages in Ohio, Kentucky, and Indiana. A super gage includes streamflow and water-quality instrumentation and representative stream sample collection for laboratory analysis. USGS...
Green River at Lock 1 at Spottsville, KY
USGS Station ID: 03321500
Super Gage Network
What is a Super Gage? A gage at which continuous flow and water level are determined, along with continuous traditional water-quality (water temperature, specific conductance, pH, dissolved oxygen, and/or turbidity) and either of the following criteria: at least one other less-traditional continuous water-quality parameter (orthophosphate, nitrate concentration) and/or where surrogates (developed...
Harmful Algae Blooms (HABs)
Cyanobacterial harmful algal blooms (HABs) are increasingly a global concern because HABs pose a threat to human and aquatic ecosystem health and cause economic damages. Toxins produced by some species of cyanobacteria (called cyanotoxins) can cause acute and chronic illnesses in humans and pets. Aquatic ecosystem health also is affected by cyanotoxins, as well as low dissolved oxygen...
Nutrient Delivery to the Mississippi River from Kentucky
Scientists will be collecting field water-quality parameters and samples for laboratory analysis of nutrients, silica, and suspended sediment at the USGS Ohio River at Ironton, OH gaging station and the Green River at Spottsville, KY gaging station on a monthly basis. Stable isotope water samples also will be collected at the Green River site. The Ohio River at Ironton, OH site will serve, along...
Monitoring Large Rivers in Kentucky
Water Science Center scientists monitor several rivers in Kentucky as part of the USGS National Water-Quality Program (NWQP) . As part of the NWQP program , USGS scientists from across the country are determine the status and trends of loads and concentrations of contaminants, nutrients, and sediment in the Nation’s large rivers.
Autonomous Underwater Vehicles (AUV)
Scientists are using the Ecomapper Autonomous Underwater Vehicle (AUV) to collect imagery, bathymetry, and basic water-quality parameters. The Ecomapper provides a innovative visualization of data.
Datasets of Streamflow, Nutrient Concentrations, Loads and Trends for the Mississippi Ambient Water-Quality Network Stations, Water Years 2008 through 2018
This dataset utilized available water-quality data from the Mississippi Department of Environmental Quality and streamflow from the U.S. Geological Survey to estimate total nitrogen and total phosphorus loads and changes in loads from water years 2008 through 2018. Nutrient loads and changes in loads were estimated at 22 state ambient water-quality network sites, and were estimated using LOADEST r
Chemical and physical data for sediment source fingerprinting of suspended and bottom sediment in Little River, Kentucky.
This data release includes physical and chemical data for samples from upland source and streambank sampling sites in the Little River basin, Kentucky. Data were collected from March to November of 2014. These data include total nitrogen and carbon concentrations, organic carbon concentrations, concentrations for 37 metals, and particle-size analysis. Source samples were grouped into one of four l
Water-Quality Datasets from Synoptic Surveys in Nolin River Lake, Kentucky, using an Autonomous Underwater Vehicle, Discrete Sampling, and Depth Profiles, August 2016
The U.S. Geological Survey (USGS), in cooperation with the U.S. Army Corps of Engineers-Louisville District, conducted a reconnaissance integrated synoptic study in at six sites of Nolin Lake, Kentucky, using an autonomous underwater vehicle (AUV). This digital dataset contains site information, basic water-quality field parameter distributions, analyzing laboratories and methods, and water chemis
Sources of Pathogens, Nutrients, and Sediment in the Upper Little River Basin, Kentucky (2012-14)
The U.S. Geological Survey (USGS), in cooperation with the Little River Water-Quality Consortium (LRWQC), collected water samples at 19 sites in the upper Little River Basin, Kentucky, from November 1, 2012 to November 30, 2014. This digital dataset contains site information, analyzing laboratories and methods, and water chemistry for these samples. Water chemistry results include concentrations o
Science and Products
Filter Total Items: 19
Status and trends of total nitrogen and total phosphorus concentrations, loads, and yields in streams of Mississippi, water years 2008–18
To assess the status and trends of conditions of surface waters throughout Mississippi, the U.S. Geological Survey, in cooperation with the Mississippi Department of Environmental Quality (MDEQ), summarized concentrations and estimated loads, yields, trends, and spatial and temporal patterns of total nitrogen (TN) and total phosphorus (TP) at 20 stream sites in MDEQ’s ambient water-quality monitor
Authors
Matthew B. Hicks, Angela S. Crain, Natalie G. Segrest
The importance of U.S. Geological Survey water-quality super gages
Super gages are an important tool providing real-time, continuous water-quality data at streamgages or groundwater wells. They are designed to address specific water-resource threats such as water-related human health issues including harmful algal blooms, floods, droughts, and hazardous substance spills. In addition, super gages improve our understanding of the effects land-use practices have on
Authors
Angela S. Crain
Potential interaction of groundwater and surface water including autonomous underwater vehicle reconnaissance at Nolin River Lake, Kentucky, 2016
The U.S. Geological Survey collaborated with the U.S. Army Corps of Engineers, Louisville District, on a synoptic study of water quality at Nolin River Lake during August 2016. The purpose of the study was to develop a better understanding of the potential for interaction between groundwater and surface water at Nolin River Lake, Kentucky. Groundwater can have properties that are measurably differ
Authors
Angela S. Crain, Justin A. Boldt, Randall E. Bayless, Aubrey R. Bunch, Jade L. Young, Jennifer C. Thomason, Zachary L. Wolf
Multiple-source tracking: Investigating sources of pathogens, nutrients, and sediment in the Upper Little River Basin, Kentucky, water years 2013–14
The South Fork Little River (SFLR) and the North Fork Little River (NFLR) are two major headwater tributaries that flow into the Little River just south of Hopkinsville, Kentucky. Both tributaries are included in those water bodies in Kentucky and across the Nation that have been reported with declining water quality. Each tributary has been listed by the Kentucky Energy and Environment Cabinet—Ke
Authors
Angela S. Crain, Mac A. Cherry, Tanja N. Williamson, Aubrey R. Bunch
Water quality and natural resources in the Green River Basin
No abstract available.
Authors
Brad D. Lee, Tanja N. Williamson, Angela S. Crain
Determination of (4-methylcyclohexyl)methanol isomers by heated purge-and-trap GC/MS in water samples from the 2014 Elk River, West Virginia, chemical spill
A heated purge-and-trap gas chromatography/mass spectrometry method was used to determine the cis- and trans-isomers of (4-methylcyclohexyl)methanol (4-MCHM), the reported major component of the Crude MCHM/Dowanol™ PPh glycol ether material spilled into the Elk River upriver from Charleston, West Virginia, on January 9, 2014. The trans-isomer eluted first and method detection limits were 0.16-μg L
Authors
William T. Foreman, Donna L. Rose, Douglas B. Chambers, Angela S. Crain, Lucinda K. Murtagh, Haresh Thakellapalli, Kung K. Wang
Breakpoint analysis and relations of nutrient and turbidity stressor variables to macroinvertebrate integrity in streams in the Crawford-Mammoth Cave Uplands Ecoregion, Kentucky, for the development of nutrient criteria
To assist Kentucky in refining numeric nutrient criteria in the Pennyroyal Bioregion, the U.S. Geological Survey and the Kentucky Division of Water collected and analyzed water chemistry, turbidity, and biological-community data from 22 streams throughout the Crawford-Mammoth Cave Upland ecoregion (U.S. Environmental Protection Agency Level IV Ecoregion, 71a) within the Pennyroyal Bioregion from S
Authors
Angela S. Crain, Brian J. Caskey
Nutrients, Select Pesticides, and Suspended Sediment in the Karst Terrane of the Sinking Creek Basin, Kentucky, 2004-06
This report presents the results of a study by the U.S. Geological Survey, in cooperation with the Kentucky Department of Agriculture, on nutrients, select pesticides, and suspended sediment in the karst terrane of the Sinking Creek Basin.
Streamflow, nutrient, select pesticide, and suspended-sediment data were collected at seven sampling stations from 2004 through 2006. Concentrations of nitri
Authors
Angela S. Crain
Concentrations, and estimated loads and yields of total nitrogen and total phosphorus at selected water-quality monitoring network stations in Kentucky, 1979-2004
To evaluate the State’s water quality, the Kentucky Division of Water collects data from a statewide network of primary ambient stream water-quality monitoring stations and flexible, rotating watershed-monitoring stations. This ambient stream water-quality monitoring network program is directed to assess the conditions of surface waters throughout Kentucky. Water samples were collected monthly for
Authors
Angela S. Crain, Gary R. Martin
Trends in Surface-Water Quality at Selected Ambient-Monitoring Network Stations in Kentucky, 1979-2004
Increasingly complex water-management decisions require water-quality monitoring programs that provide data for multiple purposes, including trend analyses, to detect improvement or deterioration in water quality with time. Understanding surface-water-quality trends assists resource managers in identifying emerging water-quality concerns, planning remediation efforts, and evaluating the effectiven
Authors
Angela S. Crain, Gary R. Martin
Concentrations, and estimated loads and yields of nutrients and suspended sediment in the Little River basin, Kentucky, 2003-04
Nutrients, primarily nitrogen and phosphorus compounds, naturally occur but also are applied to land in the form of commercial fertilizers and livestock waste to enhance plant growth. Concentrations, estimated loads and yields, and sources of nitrite plus nitrate, total phosphorus, and orthophosphate were evaluated in streams of the Little River Basin to assist the Commonwealth of Kentucky in deve
Authors
Angela S. Crain
Occurrence, distribution, loads, and yields of selected pesticides in the Little River basin, Kentucky, 2003-04
Water resources in the Little River Basin are potentially vulnerable to applications of pesticides associated with both agricultural and nonagricultural activities, because much of the basin is characterized by karst topography. Concerns about water quality resulting from pesticide use in karst areas and lack of data on concentrations of pesticides in surface water led to further investigation of
Authors
Angela S. Crain
Kentucky River at Lock 2 at Lockport KY
Water-quality “super” gages (also known as “sentry” gages) provide real-time, continuous measurements of the physical and chemical characteristics of stream water at or near selected U.S. Geological Survey (USGS) streamgages in Ohio, Kentucky, and Indiana. A super gage includes streamflow and water-quality instrumentation and representative stream sample collection for laboratory analysis. USGS...
Green River at Lock 1 at Spottsville, KY
USGS Station ID: 03321500
Super Gage Network
What is a Super Gage? A gage at which continuous flow and water level are determined, along with continuous traditional water-quality (water temperature, specific conductance, pH, dissolved oxygen, and/or turbidity) and either of the following criteria: at least one other less-traditional continuous water-quality parameter (orthophosphate, nitrate concentration) and/or where surrogates (developed...
Harmful Algae Blooms (HABs)
Cyanobacterial harmful algal blooms (HABs) are increasingly a global concern because HABs pose a threat to human and aquatic ecosystem health and cause economic damages. Toxins produced by some species of cyanobacteria (called cyanotoxins) can cause acute and chronic illnesses in humans and pets. Aquatic ecosystem health also is affected by cyanotoxins, as well as low dissolved oxygen...
Nutrient Delivery to the Mississippi River from Kentucky
Scientists will be collecting field water-quality parameters and samples for laboratory analysis of nutrients, silica, and suspended sediment at the USGS Ohio River at Ironton, OH gaging station and the Green River at Spottsville, KY gaging station on a monthly basis. Stable isotope water samples also will be collected at the Green River site. The Ohio River at Ironton, OH site will serve, along...
Monitoring Large Rivers in Kentucky
Water Science Center scientists monitor several rivers in Kentucky as part of the USGS National Water-Quality Program (NWQP) . As part of the NWQP program , USGS scientists from across the country are determine the status and trends of loads and concentrations of contaminants, nutrients, and sediment in the Nation’s large rivers.
Autonomous Underwater Vehicles (AUV)
Scientists are using the Ecomapper Autonomous Underwater Vehicle (AUV) to collect imagery, bathymetry, and basic water-quality parameters. The Ecomapper provides a innovative visualization of data.
Datasets of Streamflow, Nutrient Concentrations, Loads and Trends for the Mississippi Ambient Water-Quality Network Stations, Water Years 2008 through 2018
This dataset utilized available water-quality data from the Mississippi Department of Environmental Quality and streamflow from the U.S. Geological Survey to estimate total nitrogen and total phosphorus loads and changes in loads from water years 2008 through 2018. Nutrient loads and changes in loads were estimated at 22 state ambient water-quality network sites, and were estimated using LOADEST r
Chemical and physical data for sediment source fingerprinting of suspended and bottom sediment in Little River, Kentucky.
This data release includes physical and chemical data for samples from upland source and streambank sampling sites in the Little River basin, Kentucky. Data were collected from March to November of 2014. These data include total nitrogen and carbon concentrations, organic carbon concentrations, concentrations for 37 metals, and particle-size analysis. Source samples were grouped into one of four l
Water-Quality Datasets from Synoptic Surveys in Nolin River Lake, Kentucky, using an Autonomous Underwater Vehicle, Discrete Sampling, and Depth Profiles, August 2016
The U.S. Geological Survey (USGS), in cooperation with the U.S. Army Corps of Engineers-Louisville District, conducted a reconnaissance integrated synoptic study in at six sites of Nolin Lake, Kentucky, using an autonomous underwater vehicle (AUV). This digital dataset contains site information, basic water-quality field parameter distributions, analyzing laboratories and methods, and water chemis
Sources of Pathogens, Nutrients, and Sediment in the Upper Little River Basin, Kentucky (2012-14)
The U.S. Geological Survey (USGS), in cooperation with the Little River Water-Quality Consortium (LRWQC), collected water samples at 19 sites in the upper Little River Basin, Kentucky, from November 1, 2012 to November 30, 2014. This digital dataset contains site information, analyzing laboratories and methods, and water chemistry for these samples. Water chemistry results include concentrations o