I live in Massachusetts (Taxachusetts). I have been paying my water bill for the last 5 years on-time. 6 months ago the town replaced my water meter and sent me a bill for $7,000. After calling they said the meter and the transmitter outside the house were not in-sync and the actual water consumption is higher than I was billed. So I owe extra past charges. Is it legal to send someone a bill like this (retro active)? I was paying faithfully and did not realize I was under paying the bills say actual reading....
Thanks for any advise!

