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| MD-DE-DC Water Science Center |
U.S. GEOLOGICAL SURVEY
Open-File Report 01-205
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 1999. The map, based on water level measurements in 67 wells, shows that the change of the potentiometric surface during the 17-year period declined from zero in the northernmost part of the study area, which is the outcrop of the aquifer, to 101 feet at Lexington Park. Lexington Park is near the southeasternmost part of the study area and approaches the downdip boundary of the aquifer.
This report is available as a gif file (Large Print Size) and in Portable Document Format (PDF)(8½ x 11 printed size).
View the OFR 01-205 report in GIF (201 kilobytes)
View the OFR 01-205 report in PDF (134 kilobytes)
If you do not have the Adobe Acrobat PDF Reader, it is available for free download from Adobe Systems Incorporated.
Document Accessibility: Adobe Systems Incorporated has information about PDFs and the visually impaired. This information provides tools to help make PDF files accessible. These tools and the accessible reader may be obtained free from Adobe at Adobe Access.
For more information about USGS activities in Maryland, Delaware, and the District of Columbia, contact:
Director
MD-DE-DC Water Science Center
U.S. Geological Survey
8987 Yellow Brick Road
Baltimore, MD 21237
Telephone: (410) 238-4200
Fax: (410) 238-4210
or access the USGS Water Resources of Maryland, Delaware, and District of Columbia home page at: http://md.water.usgs.gov/.
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