Record Display for the EPA National Library CatalogRECORD NUMBER: 7 OF 17
|Main Title||Hydrogeologic atlas, Hereford quadrangle, Baltimore County, Maryland|
|Author||Duigon, Mark T. ; Hilleary, John T.|
|CORP Author||Geological Survey (U.S.); Baltimore County (Md.). Dept. of Planning and Zoning.; Photo Science Inc.|
|Publisher||Maryland Geological Survey,|
|Additional Subjects||Water, Underground--Maryland--Baltimore County--Maps ; Slopes (Physical geography)--Maryland--Baltimore County--Maps|
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."; 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.