Nitrate in ground water in the Great Valley carbonate subunit of the Potomac River Basin
By: by Matthew J. Ferrari and Scott W. Ator.
Contributors: Ator, Scott W.; Geological Survey (U.S.)
Series: Water-resources investigations report -- 95-4099.; Potomac River Basin
Publisher: U.S. Geological Survey
Published: 1995
Place of publication: Towson, Md
Language: eng
Subjects: Groundwater -- Pollution -- Potomac River Watershed; Nitrates -- Environmental aspects -- Potomac River Watershed; Agriculture -- Environmental aspects -- Potomac River Watershed
Notes: Caption title.

Includes bibliographical references (p. [6]).