Water Treatment


Water Treatment Plant

Coldwater's water treatment plant was designed to remove iron and manganese but not soften municipally supplied water. The water utility is protecting the water supply with a wellhead protection program. It is one of the first of its kind in the state of Michigan. The wellhead protection program identifies which lands impact the water producing aquifer and establishes guidelines for informing the public and governmental agencies on protecting the watershed.

Local Customer Service

To start, stop or change your service, please call our Customer Service Department at 517-279-9531. We're available Monday through Friday from 8 a.m. to 5 p.m. or come to our office at One Grand Street, Coldwater.


CBPU water / sewer / lawn water bills are read each month and billed based off of actual usage. The charges on a water bill are as follows:
  • Water / Sewer / Lawn Water Usage - charges are billed per 1,000 gallons of water used per month
  • Water / Sewer / Lawn Water Base Fee - minimum fee to service your account
A permit is required for the installation of all outdoor sprinkling systems and/or water wells.