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Potentiometric Surface of the Magothy Aquifer in Southern Maryland, September 2002

Open-File Report 2003-256

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Abstract

This report presents a map showing the potentiometric surface of the Magothy aquifer in the Magothy Formation of Upper Cretaceous age in Southern Maryland during September 2002. The map is based on water-level measurements in 79 wells. The highest measured water level was 83 feet above sea level near the northern boundary and outcrop area of the aquifer in the north-central part of Anne Arundel County. The potentiometric surface declined towards the south and east. Local gradients were directed toward the centers of two cones of depression that developed in response to pumping. These cones of depression were centered around well fields in the Waldorf area and at the Chalk Point power plant. Measured ground-water levels were as low as 81 feet below sea level in the Waldorf area and 75 feet below sea level at Chalk Point.

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Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Potentiometric Surface of the Magothy Aquifer in Southern Maryland, September 2002
Series title:
Open-File Report
Series number:
2003-256
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