As Geographer for the Virginia and West Virginia Water Science Center, Chintamani supports hydrologists, physical scientists, biologists, and other scientists that work on issues related to water availability, droughts, ecosystems, and water quality across Virginia, West Virginia and other communities.
Chintamani supports USGS water-resources studies and projects through mapping and data visualization. Chintamani’s interests are in geographic information system, spatial analysis, landscape ecology, and web GIS. His work focuses on geographic information system analysis, data analysis, and the design and development of interactive GIS applications.
Education and Certifications
M.Sc. in Geospatial Technologies, a joint degree from the Institute for Geoinformatics, University of Muenster, Germany and Institute of Statistics and Information Management, New University of Lisbon
Science and Products
Integrated assessment of wastewater reuse, exposure risk, and fish endocrine disruption in the Shenandoah River watershed
GIS-based landscape analysis to identify sources of endocrine disrupting chemicals
Basin Characteristics Rasters for West Virginia StreamStats 2021
Interactive Map: Kentucky Drought Condition Monitor
This dynamic web application provides daily updates for precipitation, streamflow, and groundwater levels for each county in Kentucky and weekly updates of crop moisture index values for each of the four climate divisions in Kentucky.
Loads and trends in the Chesapeake Bay nontidal monitoring network: results through Water Year 2018
The mapper provides the primary findings for nitrogen, phosphorus and suspended-sediment trends, and gives the user tools to further examine the results for river basins and individual sites. Data used in the mapper, and the methods used to compute trends and loads, can be also accessed from the tool.
Interactive Map: Fauquier County Groundwater Recharge
This application allows users to view, query, select, and export mean, 25th, and 75th percentile groundwater recharge data for Fauquier County, Virginia, USA resulting from a soil-water-balance model developed to estimate the mean annual water budget for the period 1996 through 2015 and the annual water budget for a drought-year in 2001.
Interactive Map: Estimating Drought Streamflow Probabilities for Virginia Streams
Maximum likelihood logistic regression is used to estimate drought probabilities for selected Virginia rivers and streams 5 to 11 months in advance. Hydrologic drought streamflow probabilities for summer months are provided as functions of streamflows during the previous winter months. This application allows the display and query of these drought streamflow probabilities for Virginia streams.
Interactive Map: Virginia Water-Monitoring-Sites
The Virginia Water-Monitoring-Sites Mapper is an interactive map of Virginia water monitoring-site locations from the USGS National Water Information System. It provides access to surface water, groundwater, and water quality monitoring data for active sites.
Interactive Map: West Virginia Water-Monitoring-Sites
The West Virginia Water-Monitoring-Sites Mapper is an interactive map of West Virginia water monitoring-site locations from the USGS National Water Information System. It provides access to surface water, groundwater, and water quality monitoring data for active sites.
Interactive Map: GIS-based landscape analysis to identify sources of endocrine disrupting chemicals
Scientists refined the existing national-scale "De facto Reuse Incidence in our Nation's Consumable Supply" (DRINCS) model for the Shenandoah River watershed. The model, complemented by field measurements, provides a screening tool to understand human and wildlife exposure to toxicants and pathogens associated with the incidental reuse of treated wastewater in the watershed.
Science and Products
- Publications
Integrated assessment of wastewater reuse, exposure risk, and fish endocrine disruption in the Shenandoah River watershed
Reuse of municipal and industrial wastewater treatment plant (WWTP) effluent is an important component in augmenting global freshwater supplies. The Shenandoah River Watershed was selected to conduct on-site exposure experiments to assess endocrine disrupting characteristics of different source waters. This investigation of the Shenandoah River Watershed integrates WWTP wastewater reuse modeling, - Science
GIS-based landscape analysis to identify sources of endocrine disrupting chemicals
A key component to assessing the contaminant exposure pathways in streams and rivers of the Chesapeake Bay is using GIS-based landscape analysis to identify sources of endocrine disrupting chemicals. Municipal and industrial wastewater treatment plant (WWTP) discharges are potentially major sources of EDCs to streams, and therefore understanding the de facto wastewater reuse (represented as... - Data
Basin Characteristics Rasters for West Virginia StreamStats 2021
The U.S. Geological Survey (USGS) has calculated over 25 different basin characteristics as part of preparing the West Virginia StreamStats 2021 application. These datasets are raster representations of various environmental, geological, and land use attributes within the West Virginia StreamStats 2021 study area and will be served in the West Virginia StreamStats 2021 application to describe deli - Web Tools
Interactive Map: Kentucky Drought Condition Monitor
This dynamic web application provides daily updates for precipitation, streamflow, and groundwater levels for each county in Kentucky and weekly updates of crop moisture index values for each of the four climate divisions in Kentucky.
Loads and trends in the Chesapeake Bay nontidal monitoring network: results through Water Year 2018
The mapper provides the primary findings for nitrogen, phosphorus and suspended-sediment trends, and gives the user tools to further examine the results for river basins and individual sites. Data used in the mapper, and the methods used to compute trends and loads, can be also accessed from the tool.
Interactive Map: Fauquier County Groundwater Recharge
This application allows users to view, query, select, and export mean, 25th, and 75th percentile groundwater recharge data for Fauquier County, Virginia, USA resulting from a soil-water-balance model developed to estimate the mean annual water budget for the period 1996 through 2015 and the annual water budget for a drought-year in 2001.
Interactive Map: Estimating Drought Streamflow Probabilities for Virginia Streams
Maximum likelihood logistic regression is used to estimate drought probabilities for selected Virginia rivers and streams 5 to 11 months in advance. Hydrologic drought streamflow probabilities for summer months are provided as functions of streamflows during the previous winter months. This application allows the display and query of these drought streamflow probabilities for Virginia streams.
Interactive Map: Virginia Water-Monitoring-Sites
The Virginia Water-Monitoring-Sites Mapper is an interactive map of Virginia water monitoring-site locations from the USGS National Water Information System. It provides access to surface water, groundwater, and water quality monitoring data for active sites.
Interactive Map: West Virginia Water-Monitoring-Sites
The West Virginia Water-Monitoring-Sites Mapper is an interactive map of West Virginia water monitoring-site locations from the USGS National Water Information System. It provides access to surface water, groundwater, and water quality monitoring data for active sites.
Interactive Map: GIS-based landscape analysis to identify sources of endocrine disrupting chemicals
Scientists refined the existing national-scale "De facto Reuse Incidence in our Nation's Consumable Supply" (DRINCS) model for the Shenandoah River watershed. The model, complemented by field measurements, provides a screening tool to understand human and wildlife exposure to toxicants and pathogens associated with the incidental reuse of treated wastewater in the watershed.