Skip Links

USGS Home Contact USGS Search USGS

Prepared in cooperation with the Maryland Geological Survey (MGS) and the Power Plant Assessment Program, Maryland Department of Natural Resources.

The Difference Between the Potentiometric Surfaces of the Aquia Aquifer in Southern Maryland, September 1982 and September 2007

By Stephen E. Curtin (USGS), David C. Andreasen (MGS), and Andrew W. Staley (MGS)

Abstract This report presents a map showing the change in the potentiometric surface of the Aquia aquifer in the Aquia Formation of Paleocene age in Southern Maryland for September 1982 and September 2007. The map, based on water-level measurements in 53 wells, shows that the potentiometric surface during the 25-year period declined from zero in the northernmost part of the study area, which is the outcrop of the aquifer, to 117 feet at Lexington Park. Lexington Park is near the southeasternmost part of the study area and approaches the downdip boundary of the aquifer.

1 Map Sheet PDF (347 KB) For additional information contact: Director U.S. Geological Survey Director, MD-DE-DC Water Science Center 5522 Research Park Drive Baltimore, MD 21228 http://md.water.usgs.gov Part or all of this report is presented in Portable Document Format (PDF); the latest version of Adobe Reader or similar software is required to view it. Download the latest version of Adobe Reader, free of charge.

Suggested citation:

Curtin, S.E., Andreasen, D.C., and Staley, A.W., 2009, The difference between the potentiometric surfaces of the Aquia aquifer in Southern Maryland, September 1982 and September 2007: U.S. Geological Survey Open-File Report 2009–1081, 1 map sheet.