Potentiometric Surface of the Aquia Aquifer in Southern Maryland, September 2009

Open-File Report 2010-1201
Prepared in cooperation with the Maryland Geological Survey and the Maryland Department of Natural Resources
By: , and 



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 2009. The map is based on water-level measurements in 82 wells. The highest measured water level was 48 feet above sea level near the northern boundary and in the outcrop area of the aquifer in the central part of Anne Arundel County. Water levels also were above sea level in Kent County and northern Queen Anne's County. Water levels were below sea level south and east of these areas and in the remainder of the study area. The hydraulic gradient increased southeastward toward a cone of depression around well fields at Lexington Park and Solomons Island. The lowest measured water level was 145 feet below sea level at the center of a cone of depression at Lexington Park. The map also shows well yield in gallons per day for 2008 at wells or well fields.

Study Area

Publication type Report
Publication Subtype USGS Numbered Series
Title Potentiometric Surface of the Aquia Aquifer in Southern Maryland, September 2009
Series title Open-File Report
Series number 2010-1201
DOI 10.3133/ofr20101201
Year Published 2010
Language English
Publisher U.S. Geological Survey
Publisher location Reston, VA
Contributing office(s) Maryland Water Science Center
Description 1 map
Time Range Start 2009-09-01
Time Range End 2009-09-30
Country United States
Online Only (Y/N) N
Additional Online Files (Y/N) N
Google Analytic Metrics Metrics page
Additional publication details