| Business | Phone |
| Verona Wastewater Treatment 700 Bruce Ct, Madison 53705 | (608) 845-8591 |
| Water Utility-Engineering 119 E Olin Ave, Madison 53713 | (608) 266-4646 |
| Fitchburg Utility District 5520 Lacy Rd, Madison 53711 | (608) 270-4270 |
| Madison Water Utility Billing 119 E Olin Ave, Madison 53713 | (608) 266-4641 |