Water meters are like any other mechanical device; they break down over a period of time. When water meters age, they become less accurate. Therefore, an older meter will give you a certain amount of water for free.
The replacement of these older water meters with new meters does not cause your usage to go up, it merely accounts for the actual amount of water that you use. For example, if your old water meter was only 80% accurate, you received 20% of your water for free. When your meter is changed you will be charged for 100% of the water that you use.
The City of Monticello has chosen to use the Neptune meter system. These meters are guaranteed to be accurate for fifteen years. You can rest assured that you will not be over charged for your water usage.