Three (3) parameters to be considered before backwashing; Filter Runtime, Loss of Head and Turbidity. The 2 Magelis Terminals located at the 2 Filter Consoles monitored the Runtime of each Filter from the time it was last backwashed, the same data is transmitted to the OIT. Installed to each Filter Basin are the Strainer and the Mudleg Assembly attached to a Differential Pressure Sensor at the Filter Gallery that determines the Loss of Head and the signal is transmitted to its corresponding Loss of Head Meter at the Filter Consoles and to the OIT. Two (2) Turbidity Meters are installed at the Filter Effluent pipes of Filters 1 & 2 and at the Filter Effluent pipes of Filters 3 & 4 both transmit the data to its corresponding Turbidity Meter at the Filter Consoles and to the OIT. The new water treatment plant has a quality control laboratory with state of the art technology equipment that can analyze the physical, chemical and bacteriological qualities of the water.
Monitoring of raw and finished water is performed on an hourly basis. While sanitary survey is performed daily at the farthest point of the distribution line to monitor the residual chlorine and maintained at 0.2 mg/li.