Occurrence of nitrate and herbicides in ground water in the upper Conestoga River basin, Pennsylvania
By: by David K. Fishel and Patricia L. Lietman ; prepared in cooperation with the U.S. Department of Agriculture and the Pennsylvania Department of Environmental Resources
Contributors: Lietman, Patricia L; United States. Dept. of Agriculture; Pennsylvania. Dept. of Environmental Resources; Geological Survey (U.S.)
Series: Water-resources investigations report -- 85-4202
Publisher: U.S. Dept. of the Interior, Geological Survey; Open-file Reports, U.S. Geological Survey, [distributor]
Published: 1986
Place of publication: Harrisburg, Pa; Denver, Colo
Language: eng
Subjects: Groundwater -- Pennsylvania; Water quality -- Pennsylvania
Notes: Shipping list no.: 87-63-P

Bibliography: p. 8