Mahaska 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.

Mahaska County requires a permit for dust control applications. Binns & Stevens will submit that permit for you along with the $25 permit fee.

This allows the county time to process the permit applications and prepare the roads for dust control. If you miss the deadline, you will not be able to get dust control until June 3rd. The second application will not be applied until July 22nd, weather permitting. 

Due to weather, road, and traffic conditions, two applications are recommended. A minimum length of 400 feet is REQUIRED.


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.

Flags & Signs are available at the County Engineer’s Office or at Binns & Stevens office at 1503 17th Ave East. If flags are not visible, drivers will use their own judgment for location.

Mahaska County Guidelines

  1. Petroleum products and used oil are not allowed.
  2. Width of application must be at least 20 feet wide.
  3. Permit applicant is responsible for placing and maintaining flags as well as “DUST CONTROL” signs at each end of the treated surface. County is not responsible for broken or damaged signs.
  4. The County reserves the right to blade the road at any time and is not responsible for lost dust control.
  5. The permit is valid until October 1, 2024. After that date, Mahaska County will blade or rock the road as needed for winter preparation.
  6. Mahaska County has no obligation and will assume no responsibility for the dust control product or application. Complaints regarding the performance of the dust control product should be directed to the applicator.

Dust control signs & flags are available at the front office foyer of the County Engineer building located at 2074 Old Hwy 163, Oskaloosa, OR at the Binns & Stevens office located at 1503 17th Ave E., Oskaloosa.

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