Wastewater treatment tanks from Highland Tank & Manufacturing Co. include oil/water separators, oil/sand interceptors, elevator sump pump interceptors and advanced hydrocarbon filtration systems. Oil/water separators include Corelle coalescers. Grease removal systems include hydromechanical grease interceptors as well as passive grease interceptors. The water storage tank and pressure vessel division include water storage tanks for a variety of applications, such as fire protection, rainwater harvesting and code-compliant ASME pressure vessels. 814/893-5701; www.highlandtank.com