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Nitrate in ground water : using a model to simulate the probability of nitrate contamination of shallow ground water in the conterminous United States /

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Bibliographic Details
Main Author: Hitt, Kerie J.
Corporate Authors: Geological Survey (U.S.), National Water-Quality Assessment Program (U.S.)
Other Authors: Nolan, Bernard T., 1954-
Format: Government Document Map
Language:English
Published: Reston, Va. : USGS National Water-Quality Assessment Program, 2005.
Series:Scientific investigations map ; 2881.
Subjects:
Groundwater > Pollution > United States > Maps.
Agricultural pollution > United States > Maps.
Online Access:https://purl.fdlp.gov/GPO/LPS92950
Description
Item Description:Title from HTML index page (viewed on Apr. 14, 2008).
Includes text, col. ill., and ancillary maps.
Electronic resource.
Physical Description:1 electronic map : HTML, digital, PDF file.
Format:Mode of access: internet from the USGS web site. Address as of 4/14/08: http://pubs.usgs.gov/sim/2005/2881/ ; current access via PURL.