Potentiometric Surface of the Aquia Aquifer in Southern Maryland, September 2001
Open-File Report
2002-442
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 Aquia aquifer in the Aquia Formation of Paleocene age in Southern Maryland during September 2001. The map is based on water-level measurements in 76 wells. The potentiometric surface was highest at 40 feet above sea level near the northern boundary and outcrop area of the aquifer in the central part of Anne Arundel County, and was below sea level in the remainder of the study area. The hydraulic gradient was directed southeastward toward an extensive cone of depression around well fields at Lexington Park and Solomons Island. A cone of depression formed in northern Calvert County due to pumpage at Chesapeake Beach and North Beach. The water level has declined to 44 feet below sea level in this area. The lowest measurement was 160 feet below sea level at the center of a cone of depression at Lexington Park.
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Potentiometric Surface of the Aquia Aquifer in Southern Maryland, September 2001 |
| Series title | Open-File Report |
| Series number | 2002-442 |
| DOI | 10.3133/ofr02442 |
| Edition | - |
| Year Published | 2002 |
| Language | ENGLISH |
| Description | 1 p. |
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