The yield of bedrock wells in the fractured-bedrock aqui-fers of the Nashoba terrane and surrounding area, central and eastern Massachusetts, was investigated with analyses of exist-ing data. Reported well yield was compiled for 7,287 wells from Massachusetts Department of Environmental Protection and U.S. Geological Survey databases. Yield of these wells ranged from 0.04 to 625 gallons per minute. In a comparison with data from 103 supply wells, yield and specific capac-ity from aquifer tests were well correlated, indicating that reported well yield was a reasonable measure of aquifer char-acteristics in the study area.

... Studied fractured-bedrock aquifer systems in West Newbury (in the Eliot Formation), Maynard (in the Nashoba Formation), and Paxton (in the Paxton and Littleton Formations) to advance methods of data collection and analysis for delineating contributing areas to public-supply wells completed in fractured rock and for determining the effects of pumping on streams and wetlands ...