The City of Wixom is required to have a Cross Connect Control Program to protect our water supply.  HydroCorp administers this program for The City of Wixom. Residents that have received a notice from HydroCorp should proceed with backflow prevention testing and report their results to HydroCorp.  If you have questions about the mailing, you can call HydroCorp at 844-493-7641 or visit www.watercustomer.com.  You can also contact the Wixom DPW at 248-624-0141 if you experience any difficulties with reaching HydroCorp. Please note the deadline for compliance with the notice has been extended to July 31, 2026.