At industrial wastewater plants, the Environmental Protection Agency enforces requirements to ensure that operators pretreat pollutants in their wastes to protect local sanitary sewers and wastewater treatment plants. Such extreme wastewater handling environments operate under continual chemical exposure and heavy abrasion that deteriorate concrete and corrode steel in clarifiers, containment pits, anaerobic digesters, manholes, tanks, and other infrastructure assets. Polyurea coatings are proving ideal for rehabilitation.