124 Neb. Admin. Code, ch. 1, § 033
Current through September 17, 2024
"Filter material or filter media or treatment media" means washed-gravel, rock, crushed stone, slag, clean gravel, or tire chips, any of which that range in size from one-quarter inch to 21/2 inches. The filter media will be free of clay, silt, rubber crumbs, and other fine material. Flat slabs of tire are not acceptable for use as tire chips. Crushed stone will be durable and non-calcareous.
124 Neb. Admin. Code, ch. 1, § 033