Jessica Hopple (Former Employee)
Science and Products
Filter Total Items: 19
Streamflow characteristics and trends at 97 continuous-record and 719 partial-record streamflow gaging stations in New Jersey surface water during water years 1903-2017 Streamflow characteristics and trends at 97 continuous-record and 719 partial-record streamflow gaging stations in New Jersey surface water during water years 1903-2017
This U.S. Geological Survey (USGS) data release contains a geodatabase, shapefiles, and datasets that describe streamflow characteristics and trends in New Jersey surface water during water years 1903-2017. High-flow, low-flow, and durations statistics and trend results at 97 continuous-record gages are presented. Low-flow statistics at 719 partial-record gages with sufficient data for...
Data and citations describing the connections between agriculture and water quality in the United States Data and citations describing the connections between agriculture and water quality in the United States
This U.S. Geological Survey data release provides the data and citations for selected tables and figures in "Agriculture-A River runs through it-The connections between agriculture and water quality". This Circular is based on the National Water-Quality Assessment Project's study of Agricultural Chemicals: Sources, Behavior, and Transport. This study focused on the connections between...
Datasets and scripts used for estimating streamflow and base flow within the nontidal Chesapeake Bay riverine system, water years 2006-15 Datasets and scripts used for estimating streamflow and base flow within the nontidal Chesapeake Bay riverine system, water years 2006-15
This U.S. Geological Survey (USGS) data release contains estimated daily streamflow and base flow for HUC12 in the nontidal areas of the Chesapeake Bay watershed, monthly average streamflow and base flow, flow statistics, MATLAB scripts, and a document that describes how to create similar datasets in other watersheds. Daily streamflow was estimated for all the nontidal parts of the...
Monthly estimates of natural baseflow for 15,866 stream reaches, defined by the National Hydrography Dataset Plus Version 2.0 (NHDPlusV2), in the Delaware River Basin for the period 1950-2015 Monthly estimates of natural baseflow for 15,866 stream reaches, defined by the National Hydrography Dataset Plus Version 2.0 (NHDPlusV2), in the Delaware River Basin for the period 1950-2015
This metadata record describes monthly estimates of natural baseflow for 15,866 stream reaches, defined by the National Hydrography Dataset Plus Version 2.0 (NHDPlusV2), in the Delaware River Basin for the period 1950-2015. A statistical machine learning technique - random forest modeling (Liaw and Wiener, 2018; R Core Team, 2020) - was applied to estimate natural flows using about 150...
Nitrogen sources to and export from the Chesapeake Bay watershed, 1950 to 2050 Nitrogen sources to and export from the Chesapeake Bay watershed, 1950 to 2050
This U.S. Geological Survey data release contains datasets that combine past data with future projections of nitrogen sources and nitrogen export to the Chesapeake Bay watershed for the years 1950-2050. To help understand the effect of human and environmental changes over this time period, data for nitrogen sources from wastewater, agricultural fertilizer and manure, and atmospheric...
Estimates of atmospheric inorganic nitrogen deposition to the Chesapeake Bay watershed, 1950-2050 Estimates of atmospheric inorganic nitrogen deposition to the Chesapeake Bay watershed, 1950-2050
Reactive nitrogen is transported from the atmosphere to the landscape as wet and dry deposition that contributes to annual nitrogen loads to the Chesapeake Bay. Estimates of atmospheric inorganic nitrogen deposition to the Chesapeake Bay watershed during 1950 to 2050 are presented, and are based on field measurements, model simulations, statistical relations, and surrogate constituents...
Filter Total Items: 20
Estimates of nitrate loads and yields from groundwater to streams in the Chesapeake Bay watershed based on land use and geology Estimates of nitrate loads and yields from groundwater to streams in the Chesapeake Bay watershed based on land use and geology
The water quality of the Chesapeake Bay may be adversely affected by dissolved nitrate carried in groundwater discharge to streams. To estimate the concentrations, loads, and yields of nitrate from groundwater to streams for the Chesapeake Bay watershed, a regression model was developed based on measured nitrate concentrations from 156 small streams with watersheds less than 500 square...
Authors
Silvia Terziotti, Paul D. Capel, Anthony J. Tesoriero, Jessica A. Hopple, Scott C. Kronholm
Optimal hydrograph separation using a recursive digital filter constrained by chemical mass balance, with application to selected Chesapeake Bay watersheds Optimal hydrograph separation using a recursive digital filter constrained by chemical mass balance, with application to selected Chesapeake Bay watersheds
Quantitative estimates of base flow are necessary to address questions concerning the vulnerability and response of the Nation’s water supply to natural and human-induced change in environmental conditions. An objective of the U.S. Geological Survey National Water-Quality Assessment Project is to determine how hydrologic systems are affected by watershed characteristics, including land...
Authors
Jeff P. Raffensperger, Anna C. Baker, Joel D. Blomquist, Jessica A. Hopple
Anthropogenic organic compounds in source water of select community water systems in the United States, 2002-10 Anthropogenic organic compounds in source water of select community water systems in the United States, 2002-10
Drinking water delivered by community water systems (CWSs) comes from one or both of two sources: surface water and groundwater. Source water is raw, untreated water used by CWSs and is usually treated before distribution to consumers. Beginning in 2002, the U.S. Geological Survey’s (USGS) National Water-Quality Assessment Program initiated Source Water-Quality Assessments (SWQAs) at...
Authors
Joshua F. Valder, Gregory C. Delzer, James A. Kingsbury, Jessica A. Hopple, Curtis V. Price, David A. Bender
Concentration data for anthropogenic organic compounds in groundwater, surface water, and finished water of selected community water systems in the United States, 2002-10 Concentration data for anthropogenic organic compounds in groundwater, surface water, and finished water of selected community water systems in the United States, 2002-10
The National Water-Quality Assessment Program of the U.S. Geological Survey began implementing Source Water-Quality Assessments (SWQAs) in 2001 that focus on characterizing the quality of source water and finished water of aquifers and major rivers used by some of the larger community water systems in the United States. As used in SWQA studies, source water is the raw (ambient) water...
Authors
Janet M. Carter, James A. Kingsbury, Jessica A. Hopple, Gregory C. Delzer
The quality of our Nation’s waters: Quality of water from public-supply wells in the United States, 1993–2007: Overview of major findings The quality of our Nation’s waters: Quality of water from public-supply wells in the United States, 1993–2007: Overview of major findings
Summary of Major Findings and Implications About 105 million people in the United States-more than one-third of the Nation's population-receive their drinking water from about 140,000 public water systems that use groundwater as their source. Although the quality of finished drinking water (after treatment and before distribution) from these public water systems is regulated by the U.S
Authors
Patricia L. Toccalino, Jessica A. Hopple
Anthropogenic organic compounds in source water of selected community water systems that use groundwater, 2002-05 Anthropogenic organic compounds in source water of selected community water systems that use groundwater, 2002-05
Source water, defined as groundwater collected from a community water system well prior to water treatment, was sampled from 221 wells during October 2002 to July 2005 and analyzed for 258 anthropogenic organic compounds. Most of these compounds are unregulated in drinking water and include pesticides and pesticide degradates, gasoline hydrocarbons, personal-care and domestic-use...
Authors
Jessica A. Hopple, Gregory C. Delzer, James A. Kingsbury
Science and Products
Filter Total Items: 19
Streamflow characteristics and trends at 97 continuous-record and 719 partial-record streamflow gaging stations in New Jersey surface water during water years 1903-2017 Streamflow characteristics and trends at 97 continuous-record and 719 partial-record streamflow gaging stations in New Jersey surface water during water years 1903-2017
This U.S. Geological Survey (USGS) data release contains a geodatabase, shapefiles, and datasets that describe streamflow characteristics and trends in New Jersey surface water during water years 1903-2017. High-flow, low-flow, and durations statistics and trend results at 97 continuous-record gages are presented. Low-flow statistics at 719 partial-record gages with sufficient data for...
Data and citations describing the connections between agriculture and water quality in the United States Data and citations describing the connections between agriculture and water quality in the United States
This U.S. Geological Survey data release provides the data and citations for selected tables and figures in "Agriculture-A River runs through it-The connections between agriculture and water quality". This Circular is based on the National Water-Quality Assessment Project's study of Agricultural Chemicals: Sources, Behavior, and Transport. This study focused on the connections between...
Datasets and scripts used for estimating streamflow and base flow within the nontidal Chesapeake Bay riverine system, water years 2006-15 Datasets and scripts used for estimating streamflow and base flow within the nontidal Chesapeake Bay riverine system, water years 2006-15
This U.S. Geological Survey (USGS) data release contains estimated daily streamflow and base flow for HUC12 in the nontidal areas of the Chesapeake Bay watershed, monthly average streamflow and base flow, flow statistics, MATLAB scripts, and a document that describes how to create similar datasets in other watersheds. Daily streamflow was estimated for all the nontidal parts of the...
Monthly estimates of natural baseflow for 15,866 stream reaches, defined by the National Hydrography Dataset Plus Version 2.0 (NHDPlusV2), in the Delaware River Basin for the period 1950-2015 Monthly estimates of natural baseflow for 15,866 stream reaches, defined by the National Hydrography Dataset Plus Version 2.0 (NHDPlusV2), in the Delaware River Basin for the period 1950-2015
This metadata record describes monthly estimates of natural baseflow for 15,866 stream reaches, defined by the National Hydrography Dataset Plus Version 2.0 (NHDPlusV2), in the Delaware River Basin for the period 1950-2015. A statistical machine learning technique - random forest modeling (Liaw and Wiener, 2018; R Core Team, 2020) - was applied to estimate natural flows using about 150...
Nitrogen sources to and export from the Chesapeake Bay watershed, 1950 to 2050 Nitrogen sources to and export from the Chesapeake Bay watershed, 1950 to 2050
This U.S. Geological Survey data release contains datasets that combine past data with future projections of nitrogen sources and nitrogen export to the Chesapeake Bay watershed for the years 1950-2050. To help understand the effect of human and environmental changes over this time period, data for nitrogen sources from wastewater, agricultural fertilizer and manure, and atmospheric...
Estimates of atmospheric inorganic nitrogen deposition to the Chesapeake Bay watershed, 1950-2050 Estimates of atmospheric inorganic nitrogen deposition to the Chesapeake Bay watershed, 1950-2050
Reactive nitrogen is transported from the atmosphere to the landscape as wet and dry deposition that contributes to annual nitrogen loads to the Chesapeake Bay. Estimates of atmospheric inorganic nitrogen deposition to the Chesapeake Bay watershed during 1950 to 2050 are presented, and are based on field measurements, model simulations, statistical relations, and surrogate constituents...
Filter Total Items: 20
Estimates of nitrate loads and yields from groundwater to streams in the Chesapeake Bay watershed based on land use and geology Estimates of nitrate loads and yields from groundwater to streams in the Chesapeake Bay watershed based on land use and geology
The water quality of the Chesapeake Bay may be adversely affected by dissolved nitrate carried in groundwater discharge to streams. To estimate the concentrations, loads, and yields of nitrate from groundwater to streams for the Chesapeake Bay watershed, a regression model was developed based on measured nitrate concentrations from 156 small streams with watersheds less than 500 square...
Authors
Silvia Terziotti, Paul D. Capel, Anthony J. Tesoriero, Jessica A. Hopple, Scott C. Kronholm
Optimal hydrograph separation using a recursive digital filter constrained by chemical mass balance, with application to selected Chesapeake Bay watersheds Optimal hydrograph separation using a recursive digital filter constrained by chemical mass balance, with application to selected Chesapeake Bay watersheds
Quantitative estimates of base flow are necessary to address questions concerning the vulnerability and response of the Nation’s water supply to natural and human-induced change in environmental conditions. An objective of the U.S. Geological Survey National Water-Quality Assessment Project is to determine how hydrologic systems are affected by watershed characteristics, including land...
Authors
Jeff P. Raffensperger, Anna C. Baker, Joel D. Blomquist, Jessica A. Hopple
Anthropogenic organic compounds in source water of select community water systems in the United States, 2002-10 Anthropogenic organic compounds in source water of select community water systems in the United States, 2002-10
Drinking water delivered by community water systems (CWSs) comes from one or both of two sources: surface water and groundwater. Source water is raw, untreated water used by CWSs and is usually treated before distribution to consumers. Beginning in 2002, the U.S. Geological Survey’s (USGS) National Water-Quality Assessment Program initiated Source Water-Quality Assessments (SWQAs) at...
Authors
Joshua F. Valder, Gregory C. Delzer, James A. Kingsbury, Jessica A. Hopple, Curtis V. Price, David A. Bender
Concentration data for anthropogenic organic compounds in groundwater, surface water, and finished water of selected community water systems in the United States, 2002-10 Concentration data for anthropogenic organic compounds in groundwater, surface water, and finished water of selected community water systems in the United States, 2002-10
The National Water-Quality Assessment Program of the U.S. Geological Survey began implementing Source Water-Quality Assessments (SWQAs) in 2001 that focus on characterizing the quality of source water and finished water of aquifers and major rivers used by some of the larger community water systems in the United States. As used in SWQA studies, source water is the raw (ambient) water...
Authors
Janet M. Carter, James A. Kingsbury, Jessica A. Hopple, Gregory C. Delzer
The quality of our Nation’s waters: Quality of water from public-supply wells in the United States, 1993–2007: Overview of major findings The quality of our Nation’s waters: Quality of water from public-supply wells in the United States, 1993–2007: Overview of major findings
Summary of Major Findings and Implications About 105 million people in the United States-more than one-third of the Nation's population-receive their drinking water from about 140,000 public water systems that use groundwater as their source. Although the quality of finished drinking water (after treatment and before distribution) from these public water systems is regulated by the U.S
Authors
Patricia L. Toccalino, Jessica A. Hopple
Anthropogenic organic compounds in source water of selected community water systems that use groundwater, 2002-05 Anthropogenic organic compounds in source water of selected community water systems that use groundwater, 2002-05
Source water, defined as groundwater collected from a community water system well prior to water treatment, was sampled from 221 wells during October 2002 to July 2005 and analyzed for 258 anthropogenic organic compounds. Most of these compounds are unregulated in drinking water and include pesticides and pesticide degradates, gasoline hydrocarbons, personal-care and domestic-use...
Authors
Jessica A. Hopple, Gregory C. Delzer, James A. Kingsbury