In this subchapter:
(1) "Aggregate production operation" has the meaning assigned by Section 28A.001, Water Code.
(2) "Portland cement kiln" means a system, including any solid, gaseous, or liquid fuel combustion equipment, used to calcine and fuse raw materials, including limestone and clay, to produce portland cement clinker.
(3) "Semiconductor wafer manufacturing facility" means a manufacturing facility that conducts any of the following processes with respect to semiconductor production:
(A) growing single-crystal ingots or boules;
(B) wafer slicing;
(C) etching and polishing;
(D) bonding;
(E) cleaning;
(F) epitaxial deposition; or
(G) metrology.