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E. H. Handman

Publications and source records attributed to E. H. Handman.

At least 19 recordsLinked to original sources
USGS1986

Delineating recharge areas for stratified-drift aquifers in Connecticut with geologic and topographic maps

Stratified-drift aquifers, the major source of large quantities of groundwater in Connecticut, are recharged principally by (1) precipitation that infiltrates the land surface overlying the aquifer and percolates downward to the saturated zone, (2) subsurface inflow of groundwater from adjacent till-and-bedrock uplands, and (3) surface water that infiltrates through streambed or lake-bottom sediments. Infiltration of surface water commonly occurs where pumping wells lower then water table sufficiently to reverse the normal hydraulic gradient between the aquifer and nearly surface-water body to which it is hydraulically connected. In most parts of Connecticut, groundwater circulation in unconsolidated deposits is probably confined within each basin drained by a major perrennial stream. Where this is the case, surface water and groundwater drainage divides commonly coincide, and areas that contribute recharge under natural conditions and under conditions of development can be estimated using geologic and topographic maps. Large stratified-drift aquifers that extend across surface water drainage, divides underlie most of north-central Connecticut and parts of the Quinnipiac and Farmington River basins. Definition of recharge areas for these aquifers is more complicated and requires more detailed hydrologic information. (USGS)

Water-Resources Investigations Report↗
USGS1983

Hydrogeologic evaluation of selected stratified-drift deposits in Connecticut

Test borings at 28 sites and seismic-refraction profiles at 16 sites provide data on the saturated thickness and grain-size characteristics of stratified-drift deposits in five areas of Connecticut. These data, together with information on the areal extent of the deposits and their proximity to sources of induced recharge, can be used to estimate the water-yielding potential of the stratified-drift deposits. Individual wells could potentially yield moderate to possibly very large quantities of water (50 to 2000 gallons per minute) at some locations in all five areas where saturated, dominantly coarse-grained stratified drift is 40 feet thick or greater and hydraulically connected to nearby surface-water bodies. Coarse-grained stratified drift is most extensive in the Glastonbury, Haddam, and Simsbury, Connecticut areas. Saturated thickness exceeds 150 feet in parts of the Glastonbury and Haddam areas, but is less than 100 feet in most places. The best sites for developing large quantities of water are in the Glastonbury and Haddam areas where thick, saturated, coarse-grained stratified drift is hydraulically connected to the Connecticut River. Water in the stratified drift is generally of good chemical quality except for excessive iron (0.64 to 20 mg/L) and manganese (0.1 to 10 mg/L) in some samples.

Connecticut↗