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.
| 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 |
| Edition | - |
| Year Published | 2001 |
| Language | ENGLISH |
| Description | 1 p. |
| Scale | 250000 |
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