(a) All three-phase motors must have phase failure protection.     
      (b) Instrumentation and monitoring equipment must have power surge protection.     
      (c) A wastewater treatment facility must conduct fault monitoring to notify the operator of high wet well level, power interruption, disinfection failure, blower failure, clarifier failure, return sludge pumping failure, and any other conditions that the executive director may require an owner to monitor as a condition for project approval.     
      (d) For a wastewater treatment facility not staffed 24 hours per day, a telemetry with battery back-up or supervisory control and data acquisition system with battery backup must be able to notify an operator of a malfunction identified in subsection (c) of this section within one minute of the malfunction.     
     Source Note:        The provisions of this §217.161 adopted to be effective August 28, 2008, 33 TexReg 6843; amended to be effective December 4, 2015, 40 TexReg 8254