Click Here to Report Water Use
for:
PUBLIC WATER SUPPLIES
Illinois Water Inventory Program
To report your 2023 or other outstanding years' reports via the Online Reporting Tool please see the links on this page listed below under the Online Reporting section.
FOR IRRIGATORS: Please visit our Irrigation Reporting Information page for more information on reporting your 2024 Irrigation water use.
If you have any questions about IWIP, water use reporting, or ISWS operations, we encourage you to email us at ISWS-IWIP@isws.illinois.edu or call on our main phone line: 217-333-0239. IWIP staff members will respond to your inquiries as soon as possible.
The Illinois Water Inventory Program thanks you for your cooperation.
About the Water Inventory Program
The Illinois Water Inventory Program (IWIP), founded in 1978, is a statewide inventory of water use and withdrawals in Illinois. The priority is to develop and maintain a database of high-capacity water wells and intakes from public water supplies, self-supplied industries, irrigation, fish and wildlife, and conservation.
A high-capacity well or intake is any well or intake that is rated to pump 70 gallons per minute (gpm) or greater. In addition, any facility which owns or operates multiple wells or intakes that when combined are rated to pump 70 gpm is classified as a high-capacity operation.
For each water-using facility inventoried, the database includes locations and amounts of water withdrawn from surface water and groundwater sources, as well as significant amounts of water purchased from other facilities. Data can be summarized geographically by county, township, and drainage basin, as well as by various water use and water source categories for inclusion in publications of the USGS National Water Use Program. Annual submission of the Illinois Water Inventory form is mandatory according to Public Act 096-0222 .
Registration and Annual Reporting
Agricultural Irrigation Facility Reporting
Irrigation Reporting Information is now available online. The webpage provides the following information:
- A downloadable irrigation handbook which includes forms and guidance for record-keeping, calculating, and reporting irrigation water use.
- Information on how to register an agricultural irrigation facility in IWIP
- Help on calculating annual gallons of water withdrawals
- Instructions on how to report water use information.
Please note, IWIP considers an Agricultural Irrigation facility to be a crop irrigation facility which typically irrigates with a center pivot irrigation system. This does not include golf courses or nursery facilities.
Public Water Supply and Industrial-Commercial Facility Reporting
Public Water Supply and Industrial-Commercial facilities will receive a postcard notification in early February with instructions on how to report the previous year’s water use and withdrawal data.
Lake Michigan Ordinance (LMO-2 Recipients): Facilities that have a Lake Michigan allocation are required to submit a form (the LMO-2) to the Department of Natural Resources’ Office of Water Resources in Chicago. LMO facilities must still report Water Use Information to IWIP, however these facilities may report water use on the previous federal water year, which runs from October 1 through September 30.
Please note golf courses and nurseries are considered Industrial-Commercial facilities, not Agricultural Irrigation facilities, as defined by IWIP. As such, these facilities should have been reporting annually since 2010.
Online Reporting
IWIP reporting can now be done online via the IWIP Online Reporting Tool.
To use the tool, facility operators must first register an account with IWIP staff and receive a unique Username and Password. To begin this process please send an email containing facility name, facility number (if known) and your contact information to ISWS-IWIP@isws.illinois.edu
If you already have a Username and Password for your facility, you can access the online tool for your facility type with the links below:
Data Use
See examples of how IWIP data are used in State Water Survey projects and beyond.
For Further Information
Please see our Frequently Asked Questions section first; you may find an answer to your questions there.
If you have any additional questions about completing some part of the form or determining the amount of water your facility purchases or withdraws, please do not hesitate to call the IWIP office at 217-333-0239 or e-mail ISWS-IWIP@isws.illinois.edu. Office hours are 8am-12pm and 1pm-5pm, Monday through Friday.
Mailing Address:
Illinois Water Inventory Program
Illinois State Water Survey
2204 Griffith Drive
Champaign, IL 61820-7463
Phone: 217-333-0239
If you have a more specific request, IWIP staff contact information is listed below:
Cora Wessman – ISWS, IWIP Coordinator, 217-333-5838, cwessm3@illinois.edu
Tanner Jones – ISWS, IWIP Irrigation Specialist,
217-300-7315, tannerj@illinois.edu
Gustava Curtin – ISWS, IWIP Academic Research Assistant, 217-300-6981, ghoskins@illinois.edu
Illinois Water Inventory Program Staff thank you for participating in this important statewide program.
