Water Authority Water The ICC currently regulates six investor-owned public utilities that provide water service: Aqua Illinois Inc. , Colonial Meadows Water Company, Illinois-American Water Company , Powers Water Company, Prairie Path Water Company , and Silvis Heights Water Corporation. List of Certified Water Certified Water Notice of Inquiry There are no open Notices of Inquiry (NOI) pertaining to Illinois water public utilities at this time. Click on the NOI button below to view all ongoing and closed NOIs. List All Notice of Inquiries Programs and Initiatives Office of Diversity and Community Affairs One-Call Enforcement Uniform System of Accounts List All Programs and Initiatives Informal Processes There are no open informal processes for this authroity at this time. View the list of informal processes to see any all open and archived informal processes. List All Informal Processes Forms Form 22 ILCC - Annual Report of Water and/or Sewer Utilities External User Account Request Form Gross Revenue Tax Return for Public Utilities and Rail Carriers U-1 Accident Report Form U-2 Accident Report Form U-3 Accident Report Form Simplified Rate Case Form List All ICC Forms Industry Reports Bi-Annual Reports on IIJA and IRA Credit, Collections, and Arrearages Reports List All Industry Reports Reporting Requirements NOTICE: The information on this page is provided only as a convenience to the reader and does not necessarily represent the full extent of a company's reporting obligations under the relevant statutes and rules. It is the responsibility of the service provider to determine and comply with the applicable reporting requirements. Report Water Annual Reports Due: Annually March 31st 83 Ill. Adm. Code 210.30 220 ILCS 5/5-109 83 Ill. Adm. Code 210.30 Check List Form 21 ILCC - Annual Report of Electric Utilities Licensees and/or Natural Gas Utilities Form 22 ILCC - Annual Report of Water and/or Sewer Utilities Form 23A - Annual Report - Incumbents Form AR-13 - Annual Report of Certain Telecommunications Carriers View Filings Designated Agent Report - Annual Filing Due: Annually after January 1 and before January 31st 83 Ill. Adm. Code 215.10(a) 83 Ill. Adm. Code 215 Instructions Designated Agent Report Due: 15 days after any change to the DA 83 Ill. Adm. Code 215.50 83 Ill. Adm. Code 215 Instructions Accident Reporting Due: Occurrence Based 83 Ill. Adm. Code 220.10 83 Ill. Adm. Code 220.20 U-1 Accident Report Form U-2 Accident Report Form U-3 Accident Report Form Report of Issuance and Sale or Disposal of Securities and Application of Proceeds Due: Quarterly until company’s Final Report is issued 83 Ill. Adm. Code 240 Reporting of suspected violations of Damage Prevention Act Due: Within 45 days of occurrence 83 Ill. Adm. Code 265.100(b) Implementation Plan Due: January 1st, 2015, and every 120 days after initial approval 83 Ill. Adm. Code 280.15 View Filings Public Utility Electronic Tariff Filing Due: Occurrence Based 83 Ill. Adm. Code 290.70 Code Part 290 Instructions Login to File Informational Packets(Right-of-Way Acquisitions) Due: Prior to Contact with Landowner 83 Ill. Adm. Code 300.20 Money Pool Agreements (3) Due: Quarterly 83 Ill. Adm. Code 340.60 Maps Due: Annually, March 31st 83 Ill. Adm. Code 600.140(d) Premature Destruction or Loss of Records (8) Due: Occurrence Based 83 Ill. Adm. Code 615.70 Water Purchased Water or Sewer Treatment Rider - Reconciliation Due: Annually, March 31st 83 Ill. Adm. Code 655.50 Water Rider QIP - Monthly Information Sheets to Amend the QIP Surcharge Due: Monthly 83 Ill. Adm. Code 656.70 Water Rider QIP - Annual Petition to Initiate a Reconciliation Proceeding Due: Annually 83 Ill. Adm. Code 656.80 Public Utilities Fund Tax (PUF Tax) (Annual Gross Revenue Tax Return) Due: Annually by March 31st 220 ILCS 5/2-202 Gross Revenue Tax Return for Public Utilities and Rail Carriers Annual Security Policy Affidavit Due: Annually 220 ILCS 5/4-101 Login to File Credit, Collections and Arrearages Annual Reporting Due: Annually May 1st 220 ILCS 5/8-201.10 (a) Instructions for 220 ILCS 5/8-201.10 Login to File Credit, Collections, and Arrearages Monthly Reporting Due: Monthly - 15th each month beginning October 15, 2021 220 ILCS 5/8-201.10 (b) Instructions for 220 ILCS 5/8-201.10 Login to File Annual Non-Utility Supplier Diversity Reports Due: Annually June 1st 220 ILCS 5/16-111.11 2025 Supplier Diversity Report Form Instructions Login to File (3) Only required for Utilities that serve more than 100,000 customers. (8) Certified statement filed within 90 - days from the date of discovery of destruction indicating the records that were destroyed and the circumstances of such destruction. NOTICE: The information on this page is provided only as a convenience to the reader and does not necessarily represent the full extent of a company's reporting obligations under the relevant statutes and rules. It is the responsibility of the service provider to determine and comply with the applicable reporting requirements. ICC Reports Ameren IL Wind and Ice Storm Preparedness and Restoration Investigation Annual Report on Electric, Gas, and Water Sewer Utilities [220 ILCS 5/4-304] Arbitrators [83 Ill. Adm. Code 202.220(e)] Consumer Services Annual Report Directory of Water and Sewer Utilities HJR 59 Cybersecurity Task Force ICC Staff Report on Utility Customer Disconnections, Credit, and Collections: 2022 – 2023 [220 ILCS 5/8-201.10(b)] ICC Staff Report on Utility Customer Disconnections, Credit, and Collections: 2022 – 2024 JULIE Enforcement Statistics Public Fire Protection Charges [220 ILCS 5/9-223(b)] Rate Case History Report September 3, 2025 Staff Report Supplier Diversity Annual Report Water Rate Comparisons List All ICC Reports