For several years, the Missouri Department of
Natural Resources noted that levels of atrazine (and other crop
protection products) exceeded state Water Quality Standards in
Cameron, Smithville and Mark Twain lakes. These drinking water
lakes in northern Missouri were placed on the 303(d)
list of impaired waters in 1998 due to periodically high atrazine
concentrations.
Land use in the watersheds is primarily row
crop agriculture and atrazine is used as an herbicide. Atrazine
is a cost efficient and effective herbicide used for combating
grass and broadleaf weeds in corn. It’s also the primary
herbicide used on roughly 2.5 million acres of corn production
in Missouri. Local farmers were concerned that the popular herbicide’s
use would be greatly restricted.
The Missouri
Corn Growers Association assembled a partnership of
business and governmental organizations to proactively address
the water quality issues in the lakes. This alliance included
the Missouri Department of Natural Resources (MDNR), USDA Agricultural
Research Service, Environmental Protection Agency (EPA), Syngenta
Crop Protection, Inc., and Bayer Crop Sciences.
Funding for the 319
portion of the project was $1,000,000 while the total project
cost was $5,000,000 over five years.The Environmental Resources
Coalition (ERC), managed the project.