Why not bill on a flow basis?

Our Authority is under a court ordered service agreement which established a unit billing system. Your municipality signed this service agreement with our Authority, which complies
with State laws and U.S.E.P.A. rules. 70% of your bill pays for the cost of the system’s construction. This is a fixed cost and does not change based on flow or usage. This cost has already been expended to service your property and connect to our system. This cost must be recovered, and it has no relationship to usage. Many municipalities bill waste water charges on a
unit basis. Billing on flow would be more costly than the current unit billing. The increased cost would have to be passed onto our customers.