Published online 11 May 2005
Published in J Environ Qual 34:1004-1015 (2005)
DOI: 10.2134/jeq2004.0428
© 2005 American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
The Acetochlor Registration Partnership
Prospective Ground Water Monitoring Program
Andrew C. Newcombea,*,
David I. Gustafsonb,
John D. Fuhrmanb,
Ian J. van Wesenbeeckc,
Nick D. Simmonsc,
Andrew J. Kleind,
Kim Z. Travise and
Kevin J. Harradinee
a LFR Levine·Fricke, 1413 Woodlawn Avenue, Wilmington, DE 19806
b Monsanto Company, 800 North Lindbergh Boulevard, St. Louis, MO 63167
c Dow AgroSciences LLC, 9330 Zionsville Road, Indianapolis, IN 46268
d Klein & Associates, 12917 Topping Estates Drive, Town & Country, MO 63131
e Syngenta Ltd., Jealott's Hill Research Station, Bracknell, Berkshire, England RG42 6ET

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Fig. 1. Typical prospective ground water (PGW) study layout and instrumentation.
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Fig. 2. Acetochlor ethanesulfonic acid (ESA) and bromide movement at the Iowa prospective ground water (PGW) site.
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Fig. 3. Acetochlor ethanesulfonic acid (ESA) and bromide movement at the Indiana prospective ground water (PGW) site.
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Fig. 4. Acetochlor ethanesulfonic acid (ESA) and bromide movement at the Pennsylvania prospective ground water (PGW) site.
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Copyright © 2005 by the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America.