RESEARCH· ·1970·

mu.y n1ove readily from one bedrock unit or subunit to
u.nother, despite the fact that the hydrocarbons are
only slightly soluble in water. In the Gales Ferry area,
contaminn,tion persisted for at least 2 years following
ren1ovn.l of buried sources, and the contaminants
migrn,ted more tlmn 300 feet along joints into cones of
depression resulting from small-scale pumping for
individual fnmily dwellings.
( 3) Detailed mapping of joints is necessary to trace
pollution in the bedrock, the principal aquifer serving
privately owned rural and suburban needs in southeastern
Connecticut and nearby areas.
REFERENCES
Cervione, M. A., ,Jr., Grossmnn, I. G., and Thomas, C. E., Jr.,
1968, H~'drogeologic datn. for the lower Thames and southeastern
constul river bnsins, Connecticut: Connecticut '\Vater
Resources Bull. Hi, G5 p.
lDllis, E. E., 1909, A study of the occurrence of water in crystalline
rocl{S, ·in Gregory, H. E., Underground water resources
of Connecticut: U.S. Geol. Survey 'Vater-Supply Paper 232,
p. 5~103.
Goldsmith, Uichnrd, 1960, Geologic map of the Uncasville quadrangle,
Connecticut, surficinl geology: U.S. Geol. Survey
Geol. Qund. Map GQ-138.
GROSSMAN
~·
B209
--- 1966, Stratigraphic names in the New London area,
Connecticut: U.S. Geol. Survey Bull. 1224-J, 9 p.
--- 1967a, Bedrock geologic map of the Montville quadrangle,
New London County, Conn.: U.S. Geol. Survey Geol.
Quad. Map GQ-609.
--- 1967b, Bedrock geologic map of the Uncasville quadrangle,
New London County, Conn.: U.S. Geol. Survey Geol.
Quad. Map GQ-576.
Meikle, R. L., 1967, Ground-water levels in Connecticut 1965-
1966; Connecticut 'V·ater Resources Bull. 13, 12 p.
Meikle, R. L. and Baker, J. A., 1965, Ground-water levels in
Connecticut 1960-1964: Connecticut Water Resources Bull.
7, 26 p.
New London Evening Day, 1962, Report shows private wells at
Woodridge are "Questionable": New London, June 19, 1962.
Perlmutter, N. M., Lieber, Maxim, a~d Frauenthal, H. L., 1964,
Contamination of ground water by detergents in a suburban
environment-South Farmingdale area, Long Island, New
York, in Geological Survey Research 1964: U.S. Geol. Survey
Prof. Paper 501-C, p. C170-C175.
· Sax, N. 1., 1968, Dangerous properties of industrial materials,
3d ed.: New York, Reinhold Book Corp., 1,251 p.
Thomas, C. E., Jr., Cervione, M. A., Jr., and Grossman, I. G.,
1968, Water resources inventory of Connecticut, pt. 3,
Lower Thames and southeastern coastal river basins : Connecticut
Water Resources Bull. 15, 105 p., 4 pl.