This report contains geologic, ground-water, and quality-of-water data collected for the ground-water part of a water-resources inventory of the Quinnipiac River basin, Connecticut. The study was made by the U.S. Geological Survey in fiscal cooperation with the Connecticut Department of Environmental Protection. Collection sites for data used in the study are shown in plate A. A companion report interprets the ground-water, quality-of-water, and surfacewater data collected for the study (Connecticut Water Resources Bulletin No. 27, in parparation).
The Quinnipiac River basin~ as used in this report~ is a 360-square-mile
area in south-central Connecticut drained principally by the Quinnipiac River
and its tributaries and several smaller streams~ which drain directly to Long
Island Sound. (See front cover and plate A.) The study area includes all or
parts of the following towns: Ansonia, Berlin, Bethany, Branford, Bristol,
Cheshire, Derby, Durham, East Haven, Farmington, Guilford, Hamden, Meriden,
Middlefield, Middletown, Milford, New Britain, New Haven, North Branford, North
Haven, Orange, Plainville, Prospect, Southington, Wallingford, West Haven, Wolcott,
and Woodbridge.
Data collected for this investigation from July 1969 to December 1971 were
supplemented by data collected during previous investigations. This report includes
some records of wells and test holes published in Connecticut Water
Resources Bulletin No. 5 and also includes some records used but not published
in Connecticut Water Resources Bulletin No. 14.
Table 5 contains old but previously unpublished analyses of water from wells
in New Haven collected primarily from 1938 to 1949. Ownership of the sampled
wells, as shown in table 1 and table 5, was determined at the time of the original
inventory, and this information may now be outdated. Many of these wells
have been destroyed since they were last sampled and others, though still in
existence, are no longer in use.
