Concrete batching operations involve the processing of concrete and the handling of concrete components. Concrete is a mixture of sand, aggregate, portland cement, and water. Sand and aggregate add strength and cement acts as a binding agent in the mixture. A cement supplement, such as potash, may replace a portion of the cement to influence the mixture's properties such as its permeability or strength. The concrete formula may vary depending upon the engineering specifications, its specific application, and the weather. Various types of equipment used in concrete batching operations can include hoppers, silos, conveyors, pumps, storage bins, front-end loaders, trucks, engines, motors, generators, and boilers/water heaters.
There are 2 general methods of producing concrete: Wet-batching and dry batching. Wet-batching is a process whereby concrete is mixed at the plant and is then transported to a job site where it's poured. The concrete may also be mixed and poured into molds on-site to create pre-formed products such as concrete pipes, slabs, and beams. Dry-batching is a process whereby concrete components are loaded into a truck-mounted mixer and then subsequently mixed by the truck en route to a job site where it is poured. An alternate form of dry-batching is the loading of concrete components into separate bins on a truck where the components remaining unmixed until they are offloaded at the job site.
Who Needs a Permit?
Any concrete batch plant which would emit any pollutant, without the benefit of an air pollution control device, greater than or equal to 2 pounds in any 24 hours period.
Equipment registered under CARB's Portable Equipment Registration Program is not required to have a permit unless it is being operated as part of a stationary source as determined by Sac Metro Air District.
Baghouses and Internal Combustion Engines: When a concrete batch plant is permitted with a baghouse or an internal combustion engine, a separate application for Authority to Construct is required for each baghouse and each engine over 50 horsepower.
Permit Fees
All permit fees are based on District Rule 301.
When applying for a permit through Online Services, the appropriate Permit Fee schedule will be automatically determined based upon the selection of the General Equipment Description. If you wish to see what the fees are for new equipment prior to applying, please use Schedule 1 in the Permit Fee Schedule to determine the initial application fee. The application fee rating is dependent on the cumulative total rated electrical horsepower of all motors in the equipment.
For questions regarding the application fee, please email permitting@airquality.org or call 279-207-1122.
How to apply for a Permit
All permit applications must be completed and submitted electronically through the Online Services customer portal.
When applying for a permit through Online Services, the equipment must be categorized by both a General and Specific description. The following categories may be selected when applying for Concrete Batch Plants:
Concrete Plant
| Cement Handling Cement Storage/Loading Process
Concrete Plant < 5 CU YD
Concrete Plant > 5 CU YD
Concrete Plant Portable
Gunite Loading
Gunite Plant Stucco
|
Material - Handling
| See full list of options in the Online Services application process
|
Permit applications must be completed and submitted electronically through the Online Services portal. All applications must be submitted with the appropriate fee in order to be processed. Application fees may be paid directly through the Online Services portal. Pay the application fee when you submit your application for fastest processing time. Applications submitted without payment will be cancelled if payment is not received within two weeks of submitting the application.
To contact Permitting staff please call 279-207-1122 or email permitting@airquality.org.
