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Access a legend for the map below
Source of Map: Water Resources Inventory of CT, Part 4, Southwestern Coastal River Basins,
by the U. S. Geological Survey and the CT Department of Environmental Protection, 1970.

THIS IS AN EARLY (1970) GENERALIZED MAP OF ESTIMATED AQUIFER BOUNDARIES ONLY
COMPARE IT TO LATER DATE USGS SURFICIAL MATERIALS MAP

HISTORIC BASE LINE DATA: 1980 HVCEO
REPORT ON UMPAWAUG POND AQUIFER
Small and shallow (0.6 square miles; 20 feet estimated thickness), this coarse-grained aquifer in western Redding (north of Topstone Road, east of Sympaug Turnpike) is presently well protected by zoning (2-acre residential), wetlands controls and several parcels of reserved open space.

Existing land use consists of a natural pond (Umpawaug Pond), extensive wetlands, and scattered low density residences. The future route 7 expressway is destined to skirt the western edge of this aquifer.

Strong enforcement of on-site sewage disposal standards, and measures to protect from road salt intrusion associated with the Route 7 expressway, are the principal protective measures needed at this location to assure the availability of a potentially useful local water source.