National Water-Quality Assessment (NAWQA) Project

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New report released:

The Quality of Our Nation's Waters

Pesticides in the Nation's Streams and Ground Water, 1992-2001

This release marks the completion of NAWQA’s decadal assessment on pesticide occurrence and concentrations in streams and ground water based on results from 51 studies across the Nation. The U.S. Geological Survey (USGS) assessment provides the most comprehensive national-scale analysis to date of pesticide occurrence, distribution and sources, and potential for effects on humans, aquatic life, and wildlife. The assessment also begins to examine two important topics with implications for the future—prediction of pesticides in unmonitored areas and long-term trends.

This publication is available for download in PDF format

Available companion products and supporting materials:

A full listing of NAWQA activities is available at:

For additional information on the pesticide assessment, please contact:
Robert J. Gilliom, Chief, National Synthesis Project, Pesticides
U.S. Geological Survey
Placer Hall—6000 J Street
Sacramento, CA 95819-6129
Phone: (916)-278-3094

USGS Circulars and Fact Sheets are free. Send written requests to:
USGS Information Services
Box 25286, Federal Center
Denver, CO 80225
Or fax request to: (303) 202-4693

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Page Last Modified: Tuesday, 04-Mar-2014 14:44:24 EST