Concrete batch plants and associated equipment including mixers and
cement/ash storage silos emit air contaminants including particulate
matter and toxic air contaminants. Stationary concrete batch plants
and portable plants that do not meet the regulatory definition of
portable require a permit to operate. For information on registering a
portable concrete batch plant, please see the District's registration
Concrete batch plants typically consist of equipment to store and transfer aggregate and cement to the plant, all transfer screws, conveyers, hoppers and mixers included in the plant and equipment used to transfer the mixture of aggregate and cement to trucks for transport or other method of loadout. Cement storage silos and mixers not associated with a batch plant also require separate permits. Particulate (dust) emissions generated from this equipment are typically controlled by enclosing the process, using wet material or adding water or venting any emissions generated through a dust collector or other fabric filter.
The information on this page will assist in the completion and submittal of an application for each concrete batch plant. Each section of the page contains important information needed to submit an application.