I have to agree with Don here. You need legal representation here. The water company actually wants (YOU) to make an offer because they know that'll be the smallest hit on their wallets. However the things you need to do can be done much quicker with an attorney.

Also keep this in mind. With an attorney you can set your settlement agreement, and as part of that settlement you can have them cover your attorney's fees.

Bottom line "get an attorney". You have a good case. They admitted they are wrong here. Take all the documentation and turn it over to a lawyer. Most of the work is already done.

Squeak