The monthly water service includes a customer charge and a usage charge. The customer charge will always appear on your water bill regardless of how much or how little water you use. It is the service charge that helps recover the cost of meter reading and maintaining the water distribution and wastewater collection systems. The water usage charge is for the amount of water you use during the month.
The wastewater usage charge for residential customers is based on an average of the amount of water you used during the previous winter months (AWC) or your current month's use, whichever is less.
The wastewater usage charge for non-residential customers is based on your current month's use.