New in GWRP

• Regional Groundwater Studies
  • Ground-Water Availability in the United States
• Water Availability Pilot
  • Consumptive water use coefficients for Great Lakes Basin
• Groundwater & the Environment
  • Ground-Water Recharge in Southwestern US
• Methods & Modeling
  • SEAWAT v4--Simulation of 3D variable-density ground--water flow and transport
• Data & Information
  • Water-Level changes in aquifers of the Atlantic Coastal Plain, predevelopment to 2000

USGS in Your State

USGS Water Science Centers are located in each state.

GWRP Photo Gallery

Real-time data collection platform (DCP) installation in North Carolina	Monitoring well installation in the High Plains aquifer near Muleshoe, Texas	Aerial view of center pivot irrigation in southwestern Kansas.
Center pivot springler irrigation in Cochran County, Texas	Rhodamine dye injected in stream to trace water movement through a karst aquifer.	Aerial view of south Denver metropolitan area looking west towards the Front Range overlying the Denver Basin aquifers.
Denver Basin public-supply well in residential area of south Denver metropolitan area. Well is completed in Dawson aquifer.	Monitoring well completed in Denver Formation east of Denver, Colorado.	Installation of monitoring well completed in Denver Fomation east of Denver, Colorado
Monitoring well completed in the High Plains aquifer near a center pivot in the Panhandle of Texas.	USGS personnel making ground-water level measurement.	Center-pivot sprinkler irrigation in Nebraska