Map showing change in potentiometric surface of the Magothy Aquifer in southern Maryland between September 1975 and September 1981
Open-File Report
82-339
By: F. K. Mack, J. C. Wheeler, and S. E. Curtin
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Abstract
A map has been prepared that shows the net differences between two sets of water-level measurements made in 67 observations wells over a six-year period. One set of measurements was made in 1975, a relatively wet year, and the other set of measurements was made in 1981, a relatively dry year. The map shows that, except for a small area near the Annapolis well field where Magothy production wells were temporarily shut down, the potentiometric surface of 1981, compared with the potentiometric surface 1975, was: lower throughout the entire area; lower by at least 10 feet in the southwestern third of the area; lower by 30 to 40 feet in parts of northern Charles County , where pumping rates increased from an average of one million gallons per day (Mgal/d) in 1975 to 2.5 Mgal/d in 1981. (USGS)
Suggested Citation
Mack, F.K., Wheeler, J.C., and Curtin, S.E., 1982, Map showing change in potentiometric surface of the Magothy Aquifer in southern Maryland between September 1975 and September 1981: U.S. Geological Survey Open-File Report 82-339, 1 map ; 21 x 16 cm., https://doi.org/10.3133/ofr82339.
ISSN: 2331-1258 (online)
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Map showing change in potentiometric surface of the Magothy Aquifer in southern Maryland between September 1975 and September 1981 |
| Series title | Open-File Report |
| Series number | 82-339 |
| DOI | 10.3133/ofr82339 |
| Year Published | 1982 |
| Language | ENGLISH |
| Description | 1 map ; 21 x 16 cm. |