My water and sewer bills run about $80.00 combined for three months. We just got new water and sewer bills and they were $480.00. My landlord was questioning this and we have no idea. So he called the water dept and they said to read the meter, he read the meter and in one week it says that we used 6 cubit feet of water in one week when we normally use 3-4 cubic feet of water in a three month period. What could cause this?