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This webpage is dedicated to the West Pinal Non-Attainment area of Pinal County. To obtain a dust permit for this area, choose one of the following options:
1. In-person
    *820 E Cottonwood Ln Bldg A Casa Grande (October - April)
    *31 N Pinal St Bldg F Florence

Online at Dust Permit access

Please view the map below to ensure you are within the borders designated as the West Pinal Non-Attainment Area. If you are not within the area located on the map, click on the General Area or the Apache Junction Non-Attainment option on the left side of this page to see if your construction project is within these areas.

West Pinal Non-Attainment Area

In 2012 EPA designated a large portion of Pinal County as moderate nonattainment (West Pinal PM10) due to monitor violations of particulate matter (PM10). The ground conditions caused by construction activities and windy conditions resulted in particulate matter emissions. The construction rules were needed in order to achieve the emissions reduction for the West Pinal PM10 Nonattainment area.

Click on map to obtain a larger view

These guidelines are designed to limit particulate matter emissions that are part of the construction activities under calm and windy conditions. They will also provide application, permitting and recordkeeping requirements that will ensure the control measures used will reduce particulate matter within the areas of construction activity.

Office Locations and Hours

Apache Junction 575 N Idaho Rd Suite 800


8:30am - 3:30pm
8:30am - 12:30pm
Casa Grande 820 E Cottonwood Ln Bldg A Wednesday (Oct - April) 8:30am - 12:30pm
Florence 31 N Pinal St Bldg F Monday - Friday 8:00am - 4:30pm

 Dust Generating Standards



Construction Dust

 Dust Generating Application



Prior to starting any dust generating operation

 Control Measures


Watering....Applying Chemicals






Work Site


 Permit and Recordkeeping Requirements


On a form approved by the Control Officer

 Added Features