Sand & Gravel (Aggregate) Mining Permits – Brink, Inc.- mining sand as aggregates ,Aggregate materials - sand, gravel and crushed rock - are essential for construction and road-building projects. Property with significant surface or near surface sand, gravel or rock resources may be well-suited for mining.Aggregate Production Operations : How to Register - TCEQ ...Aggregate Production Operations : How to Register If you own or operate a quarry, sand pit, gravel pit, or other aggregate production operation (APO) in …