“Portland cement plant” means any source manufacturing a type of hydraulic cement in the form of a finely divided gray powder composed of lime, alumina, silica, and iron oxide.

Source. #6428-A, eff 1-18-97; renumbered by #8256 (from Env-A 101.210), (see Revision Note #1 at chapter heading); renumbered by #8304 (see Revision Note #2 at chapter heading); renumbered by #9839 (from Env-A 101.144), (see Revision Note #3 at chapter heading); ss by #13105, eff 9-25-20 (formerly Env-A 101.146) (see Revision Note #4 at chapter heading for Env-A 100)