Utilities Information Sources
Supplier Phone
City of Joliet Water & Sewer Division (815) 724-4230
Northern Illinois Gas - Regional Office 1-888-642-6748
Commonwealth Edison - Southern Region Office (312) 394-4321
(corporate office)
1-800-334-7661
(regional office)
AT&T - General Information
Digital Switching: YES
Fiber Optics: YES
Long Distance Carriers: AT&T
1-800-244-4444
(general information)
1-800-257-0902 (corporate office)

Water Supply
Supplier Storage Capacity Average Daily Demand Peak Demand Capability Excess Demand Capability
City of
Joliet
17,220,000
gallons
11,350,000
gallons
16,100,000
Gallons per day
1,120,000 gallons
per day
Source: City of Joliet, Public Works & Utilities

Waste Water Treatment
Supplier Number of Treatment Plants Present Load Capacity Excess Capacity
City of Joliet 2 21,260,000 gallons 1,120,000 gallons
Source: City of Joliet, Public Works & Utilities

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