In the summer (May through October), the rates include a provision for sewer charges to accommodate the people who water their lawns and gardens. You are not charged extra sewer for the water used to irrigate your lawn and garden.
The summer sewer rate will not be charged on the amount of water used during the summer months but instead will be based on an average from your winter months' (November - April) water usage.
For example, if your average winter usage is 500 cubic feet and your summer usage is 1500 cubic feet, your summer sewer bills will be based on the 500 cubic feet not the 1500.
The only time this will not apply is if your winter average is more than your actual usage. The computer will automatically use the lower number to calculate your charges.
Saving water during the winter months will lower your bills all year round!