The System calculation of Bills is solely dependent on volume consumed at each band.                                                                

There are three Volume categories: Band-1, Band-2 and Band-3.                                                              

The Bill is calculated progressively at the Band in which the Volume consumed falls in.  

Volume Category	Water			Sewer
	From	To	Rate per kL	From	To	Rate per kL
Band-1	0.1 kL	30 kL	K1.50	0.1 kL	30 kL	K1.03
Band-2	31 kL	100kL	K2.00	31 kL	100kL	K1.50
Band-3	>100kL		K6.00	>100kL		K4.00

 

For example: Customer consumes 70kL within a month                                                                                                             

The first 30kL @ Band-1 (30 x K1.50 = K45), the next 40kL @ Band - 2 (40 x K2 = K80)                                                                        

Thus the charge would be:       K45 + K80 = K125 (Add 10% GST = K137.50)                               

                                                                                

If the customer is connected to the Sewer, the same principle applies:    

The first 30kL @ Band-1 (30 x K1.03 = K31.03), the next 40kL @ Band-2 (40 x K1.50 = K60)

Thus the charge would be:       K31.03 + K60 = K91.03 (Add 10% GST = K100.13)                               

  

The total invoice charge now would be:   

                                                      Water charge + Sewer Charge                          

                                                           K137.50   +   K100.13                

                                                          = K237.63 Total Payable