Potentiometric surface of the upper Patapsco aquifer in southern Maryland, September 1999
Open-File Report
2001-208
By: Stephen E. Curtin, David C. Andreasen, and Judith C. Wheeler
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Abstract
This report presents a map showing the potentiometric surface of the Upper Patapsco aquifer in the Patapsco Formation of Cretaceous age in Southern Maryland during September 1999. The map is based on water-level measurements in 49 wells. The potentiometric surface was 119 feet above sea level near the northern boundary and outcrop area of the aquifer in a topographically high area of Anne Arundel County, and 55 feet above sea level in a similar setting in Prince Georges County. From these high areas, the potentiometric surface declined to the southeast toward large well fields in the Annapolis area, and from all directions toward a cone of depression southwest of Waldorf. Ground-water levels declined to 20 feet below sea level in the Annapolis area, and 131 feet below sea level southwest of Waldorf.
Suggested Citation
Curtin, S.E., Andreasen, D., Wheeler, J.C., 2001, Potentiometric surface of the upper Patapsco aquifer in southern Maryland, September 1999: U.S. Geological Survey Open-File Report 2001-208, 1 p., https://doi.org/10.3133/ofr01208.
ISSN: 2331-1258 (online)
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Potentiometric surface of the upper Patapsco aquifer in southern Maryland, September 1999 |
| Series title | Open-File Report |
| Series number | 2001-208 |
| DOI | 10.3133/ofr01208 |
| Year Published | 2001 |
| Language | ENGLISH |
| Description | 1 p. |
| Scale | 250000 |