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Possible online services disruption due to Internet related outage

A worldwide technology outage is causing disruption to some State of Illinois online systems.  We are aware of this issue and are diligently working on restoration.

Drinking Water & Water Quality

Drinking Water

Drinking Water (main page)
Community Water Supply Testing Program
Public Water Users
Drinking Water Watch
Private Well Users
Safe Water Well Initiative
Groundwater Ordinances
Forms, Permits, and Fees
PWS Distribution Service Line Material Inventory Reporting Guide
Source Water Assessment Program (SWAP)

Water Quality

Bureau of Water (main page)
Wastewater Operator Certification
Groundwater Quality Protection
Non-point Source Pollution
Watershed Management
Groundwater Biennial Report
Watershed Management Reports
Right-to-Know

Certifications

​Drinking Water Operator Certification
​Wastewater Operator Certification