Municipal Department
City of Joliet Public Utilities - Water and Sewer
Serving Joliet and participating municipal service areas
Population served
160,000 people (EPA SDWIS active CWS PWS IL1970450)
State system code
FIPS 17
Billing frequency
Monthly utility bills. The City’s resident guide describes monthly water and sewer charges and reports consumption in hundred cubic feet, where 1 HCF equals 748 gallons.
Provider briefing
How this utility’s billing works
City of Joliet Public Utilities - Water and Sewer operates as a municipal department serving Joliet and participating municipal service areas. Customers should use the provider’s current account-specific bill and official customer-service instructions as the final authority for deadlines, balances, and service requests.
The published water-rate framework is described as Three-tier volumetric water-usage structure with fixed monthly water and sewer charges. The City states the lifeline rate is followed by graduated charges above the lower usage thresholds; City Council approved rates through November 1, 2026.. Bills are generated monthly utility bills. the city’s resident guide describes monthly water and sewer charges and reports consumption in hundred cubic feet, where 1 hcf equals 748 gallons., and a typical residential cost reference is The City’s current guide estimates an average 6 HCF monthly customer bill at approximately $115 for combined water and sewer, and a conservation-level 3 HCF bill at approximately $60. A 5,000-7,000 gallon household uses about 6.7-9.4 HCF, so the closest published benchmark is approximately $115 monthly before any account-specific adjustments.. These descriptions are useful planning benchmarks; actual charges can change with meter size, usage, sewer averaging, local taxes, drought stages, or account-specific fees.
Wastewater and sewer calculation
Joliet calculates both water and sewer consumption in HCF and applies monthly water and sewer charges. The reviewed official guide does not describe a winter-average calculation; the published average combined bill is based on 6 HCF of usage.
Meter and infrastructure notes
Joliet customers can monitor usage in near real time through a web-based Customer Water Portal connected to their water-meter accounts. The reviewed materials do not specify a universal AMI transmission interval or manual-read schedule.
Emergency water support
Report a leak or water emergency
815-724-4220 is the City’s 24-hour water and sewer emergency number. Customer billing questions use 815-724-3820.
Official starting point
Choose the right next step
Reading this profile
A practical reference for Joliet and participating municipal service areas
City of Joliet Public Utilities - Water and Sewer is listed here as a municipal department. The profile separates account actions—such as paying a bill or requesting service—from explanatory material about rates, meters, wastewater, leaks, and delinquency.
Because utility rules can vary by account class, meter size, service address, billing date, and local ordinance, treat the published bill and current provider website as the final authority. Use this profile to locate the correct channel and prepare better questions for customer service.
If your issue is urgent, start with the provider’s emergency number or official payment route rather than waiting for an email response. Keep a written record of calls, confirmation numbers, notice dates, and documents you submit.