Another round of dust control is here. If you haven't gotten dust control from us before, you will need to call or stop in to get the appropriate paperwork for your county. The product we use is Lignin Sulfonate, which is a non-toxic, environmentally friendly, non-corrosive, water-soluble product.

Listed below are the prices by county:   

All counties must complete a Dunkerton Co-op Dust Control Application. If your county requires a permit, you will need to fill that out as well. Click on the county name in the chart below to get access to the permit. 

These prices are cash or check only. If you would like to pay by credit card or have any other questions, call 319-822-4291 and ask for Wil or Shari.

After the deadline, contact the office for prices.


Dust Control Prices Dust Control Application
Effective 04/06/2021 To download county permit click on county name below (if not available Contact Us)
County 1 App./400ft. 2 Apps./400ft. Addl 100ft./1 app. Addl 100ft/2 apps. Permit? Deadline?
Fayette $268.00 $532.00 $67.00 $133.00 Yes April 29th - $25.00 late fee
Bremer $260.00 $520.00 $65.00 $130.00 Yes May 1st
Black Hawk $260.00 $520.00 $65.00 $130.00 No April 13th
Buchanan $260.00 $520.00 $65.00 $130.00 No April 29th - $50.00 late fee

No dust applications will be applied until payment has been received. Checks will be cashed when received, no postdates accepted. If the application area is not clearly marked with flags (which we have available in our office, as well as, most county offices) drivers will use best judgment when applying. This will be applied twice this season. The first application is usually Late May to Early/Mid June and the second in Late July to Early/Mid August. We recommend a minimum application of 400 feet, which has been proven to give the best results for dust control.