The U. S. Geological Survey has made available a new web-based tool that helps users estimate groundwater recharge rates for areas throughout Pennsylvania where streamflow data are available.

The recharge estimates were computed based on two automated streamflow hydrograph methods, which are explained in the recently published report, "Estimates of Groundwater Recharge Based on Streamflow-Hydrograph Methods: Pennsylvania."

The Estimates of Ground-Water Recharge website allows users to select watersheds by clicking on a map or from a list and provides recharge rates from both estimation methods in tabular and graphic form. The site also includes information on land use and geology.

2/17/2006