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Potentiometric Surface of the Upper Patapsco Aquifer in Southern Maryland, September 2002

Open-File Report 2003-257

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Abstract

This report presents a map showing the potentiometric surface of the Upper Patapsco aquifer in the Patapsco Formation of Lower Cretaceous age in Southern Maryland during September 2002. The map is based on water-level measurements in 50 wells. The highest measured water level was 117 feet above sea level near the northern boundary and outcrop area of the aquifer in northern Anne Arundel County. From this area, the potentiometric surface declined to the southeast toward large well fields in Arnold and Annapolis, and from all directions toward a cone of depression located southwest of Waldorf. The measured ground-water level declined to 36 feet below sea level in Arnold, and to 23 feet below sea level in Annapolis. The lowest water level measured was 136 feet below sea level southwest of Waldorf.

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Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Potentiometric Surface of the Upper Patapsco Aquifer in Southern Maryland, September 2002
Series title:
Open-File Report
Series number:
2003-257
Edition:
-
Year Published:
2003
Language:
ENGLISH
Contributing office(s):
Maryland, Delaware, and the District of Columbia Water Science Center
Description:
1 sheet
Time Range Start:
2002-09-01
Time Range End:
2002-09-30
Scale:
250000