(c) Bills for the consumption of water in the various districts shall become due on the first day of the following months and in accordance with the following schedule: District 1. January, April, July, October
District 2. February, May, August, November
District 3. March, June, September, December
Nonresident February, May, August, November
(1) Charges for the consumption of water by those consumers classified as a significant industrial user shall be billed on a monthly basis by the water board. The first and second monthly billings in each quarter shall be estimated and shall be one-third of the total billing in the immediately preceding quarter. The third monthly bill in each quarter shall be based upon actual metered readings of water consumption for that quarter and shall reflect adjustments for the estimated billings in that quarter.(2) The owner of the premises or user, as the case may be, supplied through the water meter shall be held responsible for all water registered by it and no reduction in bills rendered shall be allowed for leakage or when part of the water has been used by a contractor, or by any other person.