Items
Aeration chambers
Chemical equipment
Imhoff tank
Land fill equipment and appurtenances
Oxidation pond or lagoon
Package mechanical treatment plant
Screen unit
Sedimentation basin
Sedimentation equipment
Sludge digestion equipment
Sludge filtration or dewatering equipment
Sludge system
Trickling filter
Ill. Admin. Code tit. 83, § 650.380