Washington County

Residential Dust Control

When you spread LIQUIDOW™ Liquid Calcium Chloride on unpaved roads, a lot of problems clear up.

*LIQUIDDOW™ – Trademark of Occidental Chemical Corporation.

Dust control is not dust elimination.
Calcium Chloride attracts moisture, and this is what makes it an excellent dust control product. LIQUIDOW™ is produced from natural brine deposits found underground, so it is safe for the environment.

Washington County requires a permit for dust control applications. Binns & Stevens will submit that permit for you along with the $50 permit fee if received before May 1st and $100 permit fee if received after April 30th.

This allows the county time to process the permit applications and prepare the roads for dust control. For late applications or single applications, please contact Binns & Stevens for requirements, pricing, and additional permit fees. 

Due to weather, road, and traffic conditions, two applications are REQUIRED. A minimum length of 500 feet is REQUIRED.


Four (4) neon orange flags should be used to mark the location of dust control area (as stated in the dust control policy). These flags will be available to pick up at the Washington County Shop in Washington, or the Washington County Engineer’s Office at 210 West Main Street in Washington, IA. Flags are to be visible and up the entire dust control season (May to October).

Please have area to be treated clearly flagged and visible at each end for the ENTIRE season (May to October). If flags are not visible, drivers will use their own judgment for location. PLEASE NOTE: All spots will be measured. Any footage flagged over the amount ordered will be billed to the customer. If you are unsure of flag distance and do not want more than ordered, please indicate that on the application.


Dust Control Request Form

The deadline for application has passed. Please check with us regarding late applications.