Preliminary estimates of residence times and apparent ages of ground water in the Chesapeake Bay watershed, and water-quality data from a survey of springs
By: by Michael J. Focazio ... [et al.]
Contributors: Focazio, Michael J; Geological Survey (U.S.)
Series: Water-resources investigations report -- 97-4225
Publisher: U.S. Dept. of the Interior, U.S. Geological Survey; Branch of Information Services [distributor]
Published: 1998
Place of publication: Richmond, Va; Denver, CO
Language: eng
Number of pages: 75
Subjects: Water quality -- Chesapeake Bay Watershed -- Measurement; Springs -- Chesapeake Bay Watershed; Groundwater -- Chesapeake Bay Watershed -- Quality; Chesapeake Bay Watershed -- Environmental conditions
Notes: "September 1998."

Shipping list no.: 99-0027-P

Includes bibliographical references (p. 52-55)