Dust Suppressant



Strategic locations are targeted for dust suppressant application, which helps reduce the frequency of maintenance and improves safety while mitigating the nuisance of dust to residents and minimizing environmental impact.

Application forms

Click to view Dust Suppressant Policy PW 002.

The dust suppressant program consists of the following:

  • MG 30
  • Oil Surface Products
  • Test Products
  • Pavement

MG 30

MG 30 is a water-soluble dust suppressant product, which also has road surface stabilization characteristics that bind aggregate materials, increasing grade strength and thus keeping aggregate on the road. MG 30 has also proven to help reduce washboard, grader maintenance and the frequency for gravelling, thus extending the life of our gravel sources.

County Dust Suppressant Applications

The following roadways are designated to be maintained with MG 30:

Arterial Road Network   128.0 miles
Fish Lake Road & Campground   2.375 miles
Golka Pit Truck Route Twp Rd 420, east of SH 872 4.5 miles
Ross Hinkey Road Twp Rd 442, west of Rge Rd 122 1.75 miles
Rge 123 south from SH 602 7.5 miles
Twp Rd 440 west from SH 870 1.5 miles

Residential Dust Suppressant

Flagstaff County will apply MG 30 as a dust suppressant for citizens at the following lengths of applications:

2019 MG 30 Rates
Application Rate – 2.50 liters/sq. meter
100 m x 7 m Wide = $505.31
200 m x 7 m Wide = $1,010.63
300 m x 7 m Wide = $1,515.94
400 m x 7 m Wide = $2,021.25
(All prices include GST)

Applications must be received by May 1 (spring application) and August 1 (fall application).

Application form for Spring Application can be found HERE.
Application form for Fall Application can be found HERE.

Oil Surface Products

With the approval of the Rural Road Study, the oiled road inventory was eliminated and oiled roads will be transitioned back to gravel roads. Council's objective to transition oiled roads back to gravel is to be accomplished by 2022. The transitioning roads are maintained by one full-time grader operator. A maintenance program for pot hole patching and rip/relay ensures a safe driving road surface. As oil surface roads deteriorate and patching is no longer cost effective, ripping and relaying is performed. If an oil surface road contains sufficient residual oil, then the surface will be repacked. Once an oil surface road has dehydrated to the point where the oil doesn't bind to the aggregate and the clay from the sub-grade is exposed, this road is then maintained as if it were a gravel road.

Roads remaining with an oil surface:

Specific roads are designated, in procedure, to be maintained with an oil surface treatment to help reduce the frequency of maintenance.

Strome East Rge Rd 151, north of Hwy 13 0.4 miles
Hardisty Rge Rd 100A, north of Hwy 13 0.35 miles
Hardisty North Rge Rd 95A to Rge Rd 100 1.0 miles
Hardisty West Town of Hardisty to RR 101 0.8125 miles
Shop Rd West Twp Rd 442 to Rge Rd 130 2.1 miles
Shop Rd East Twp Rd 442, east of SH 869 0.4375 miles
Airport Rd (Hardisty) Rge Rd 103 to SH 608 7.0 miles

*** Year round road bans will remain on these roads. ***

50% in the spring, 75% in the summer and fall, and 90% in the winter.


Annually new dust suppressant products are tested to determine whether they are effective, affordable, and environmentally suitable.

In 2019, a test product called Formula 35 was applied to Twp Rd 442:

  • For 3.0 miles, from Rge Rd 170 to Rge Rd 163, at an application rate of 1.5 L/m2.

Formula 35 is a calcium chloride product with a corrosion inhibiter that is sold by the manufacturer as an equivalent to MG 30.

Products that have been tested, evaluated, and have been eliminated are: 

  • No Dust Enviro
  • No Dust
  • Dust Lynx
  • Canola Oil
  • Durasoil
  • Earth Glue
  • Magnesium Chloride

Flagstaff County continues to consult with industry and municipalities to seek out new and alternative products. We also continue to perform testing on new dust suppressant products in search of solutions.


The following roadways are designated pavement roads:

ATCO Power Plant Road Twp Rd 410 to ATCO Power Plant 4.5 miles
County Airport Road Rge Rd 131, north of Hwy 13 0.75 miles
Galahad Access Road Twp Rd 412, west of Hwy 36 4.0 miles


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