I've been tracking the water usage at my apartment. (Monterra Apartment's) The gallons I used are posted next morning but they are changed the day after they are posted. This month I'm getting charged for 10,348 gallons, for two people in a 1 bedroom apartment. My parents and siblings (a total of 5 people) got the same usage as we did and they use more water than we do. So either the meters are not accurate or some is changing numbers in the system. read more