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Bulk Material Handling
These photographs show front-end loaders dumping dirt into haul trucks. No dust control methods are being used.
These trucks are leaving a construction site without a tarp covering their load. This is a violation
of Maricopa County Air Quality Rule 310.
When work sites exit onto a paved roadway it is required to install trackout control devices to help prevent particulate matter from adhering to the tires and exterior surfaces of vehicles.
When trackout exceeds a linear distance of 50 feet it is required to be cleaned-up immediately. See Maricopa
County Rule 310.
It is required to apply water before and during weed abatement by discing or blading activities. If the visible emission of dust exceeds 20% opacity it is also a violation.
Example of opacity readings in a grayscale
Wind Blown Dust
Vacant lots and open areas are required to be stabilized against fugitive dust emissions. Some control measures to stabilize an area include preventing access to motor vehicles, installing
vegetative cover, applying surface gravel, or applying a dust suppressant to disturbed areas. See Maricopa
County Rule 310.01 for more information.