Each customer connection is equipped with a meter to measure water consumption and an MXU to wirelessly send meter readings to our billing system which creates an invoice in 1,000 gallon increments rounded to the lowest 1,000 gallons. For example, if you use 1,250 gallons every month, you will receive a bill for 1,000 gallons for three months and a bill for 2,000 gallons on the fourth month to account for the usage that carried over. For most customers, we assume that water and sewer usage are the same.