Chintamani Kandel

Groundwater levels in layered aquifer systems like the Virginia Eastern Shore are often monitored using wells in multiple aquifers at the same location. Colors in the simplified cross-section illustration below correspond to the circles representing wells on the map. The list of monitoring-well layers can be used to control the map display of wells for individual aquifers. 

This application allows the display and query of groundwater drought probabilities for Northeast region wells. This application allows users to view, query, select, and export groundwater drought probabilities for next three months.

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.

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.

This application allows the display and query of drought probability. Maximum likelihood logistic regression is used to estimate drought probabilities for selected Northeast region 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.

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.

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.

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.