Chico sewer billing is separate from the Cal Water bill

If a home uses both Cal Water and City of Chico sewer, it gets two bills: Cal Water for water and a city bill through Util360 for sewer. Do not use the water company alone to decide. Because Cal Water’s Chico District also serves Hamilton City, check Chico’s sewer map if the sewer provider is not clear.

Start or stop the water account through Cal Water. Chico says that change also updates the sewer bill. A name or mailing change made with Cal Water flows to the sewer account too. A home customer must be at least 18, and an adult must be there when the water is turned on. For a move between homes, call the local Cal Water office.

The first paper sewer bill has the account number used to make a Util360 login. Use the site to see and pay the bill, or mail a check to the address on the bill. For a sewer-bill question, call Util360 at 888-530-4360 on weekdays.

The split is Cal Water for the water account and Chico or Util360 for the sewer bill. A sewer backup is not a bill issue. Send that to city sewer staff.