Summary of public water-supply withdrawals and geohydrologic data for the lower Connecticut River valley from Windsor to Vernon, Vermont

Public water supply withdrawal data and geohydrologic data were collected along a 50 mile segment of the Connecticut River valley from Windsor to Vernon, Vermont. An inventory of wells indicates that domestic groundwater supplies come primarily from bedrock, whereas public water supplies are derived from discontinuous, glacial sand and gravel deposits. Self supplied industries generally use surface water supplies. Data from eight seismic-refraction surveys, and from a seismic-reflection survey along this 50-mile reach of the Connecticut River, were compared with stratigraphic information from 217 drillers ' logs. Stratified-drift deposits range from 0 to 270 ft and average about 65 ft. Stratigraphic information from drillers ' logs and seismic-reflection records show that predominantly fine-grained stratified drift fills the valley and that coarse sand and gravel deposits exist discontinuously within this area. (USGS)