Water resources data Maryland and Delaware, water year 1995, Volume 2: Ground-water data

Abstract

This series of annual reports for Maryland and Delaware began with the 1961 water year with a report that contained only data relating to the quantities of surface water. For the 1964 water year, a similar report was introduced that contained only data relating to water quality. Beginning with the 1975 water year, the report format was changed to present, in one volume, data on quantities of surface water, quality of surface and ground water, and ground-water levels. In the 1989 water year, the report format was changed to two volumes. Both volumes contained data on quantities of surface water, quality of surface and ground water, and ground-water levels. Volume 1 contained data on the Atlantic Slope Basins (Delaware River thru Patuxent River) and Volume 2 contained data on the Monongahela and Potomac River basins. Beginning with the 1991 water year, Volume 1 contains all information on quantities of surface water and surfacewater-quality data and Volume 2 contains ground-water levels and ground-water-quality data. This report is Volume 2 in our 1995 series and includes records of water levels and water quality of ground-water wells and springs. It contains records for water levels at 388 observation wells, discharge data for 5 springs, and water quality at 177 wells. Location of ground-water level wells are shown on figures 3 and 4.The location for the ground-water-quality sites are shown on figures 5 and 6.These data represent that part of the National Water Data System collected by the U.S. Geological Survey and cooperating State and Federal agencies in Maryland and Delaware.Prior to introduction of this series and for several water years concurrent with it, waterresources data for Maryland and Delaware were published in U.S. Geological Survey Water-Supply Papers. Data on water levels for the 1935 through 1974 water years were published under the title "Groaad~ter Levels iD the United States.•The above mentioned Water-Supply Papers may be consulted in the libraries of the principal cities of the United States and may be purchased from Books and Open-File Reports Sect,~on, Federal Center, Bldg. 41, Box 25425, Denver, CO 80225.Publications similar to this .r~ort are published annually by the Geological Survey for all States. These official Survey re~orts have an identification number consisting of the two-letter State abbreviation, the last two digits of the water year, and the volume number. For example, this volume is identified as •u.s. Geological Survey Water-Data Report MD-DE-95-2.• For archiving and general distribution, the reports for 1971-74 water years also are identified as waterdata reports. These water-data reports are for sale in paper copy or in microfiche by the Nation-