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Hydrogeologic atlas, Hereford quadrangle, Baltimore County, Maryland
Hereford quadrangle, Baltimore County, Maryland
5 maps : on 5 sheets, color ; 58 x 45 cm., or smaller, on sheets 71 x 92 cm., on smaller, folded in envelope 21 x 26 cm. + 1 booklet (6 pages ; 23 cm.)
1. Slope of land surface.--2. Locations of wells and springs.--3. Depth to water table.--4. Availability of ground water.--5. Geohydrologic constraints on septic systems.
Booklet title: Hereford quadrangle, hydrology by Mark T. Duigon and John T. Hilleary.
Text, figures, and bibliographies on sheets.
"Prepared by Photo Science, Inc., Gaithersburg Maryland. Utilizing contour negatives, furnished by United States Geological Survey."
"Prepared in cooperation with the United States Geological Survey and the Baltimore County Department of Planning and Zoning."