Illinois Code § 1.1

Illinois Code § 1.1. Reproduced from the official Illinois Compiled Statutes, with a citation summary, verification link, and related provisions.

§ 1.1.

Definitions. "Department" is the Department of Natural Resources. "Domestic purposes" includes all public water supply pumpage and water supplied to commercial and industrial establishments. "Consumptive use" means that amount of water withdrawn or withheld from the Lake Michigan watershed and assumed to be lost or otherwise not returned to Lake Michigan or to any other waterway due to evaporation, incorporation into products, or other processes. "New users" refers to any regional organization, municipality, political sub-division, agency, instrumentality, organization, association, or individual that did not have an allocation of Lake Michigan water from the Department on July 1, 1980. "Discretionary dilution for water quality purposes" is Lake Michigan water directly diverted into the Sanitary and Ship Canal for the purpose of water quality, and does not include Lake Michigan water directly diverted for other purposes such as lockage, leakage of lakefront controlling structures, or navigational make-up water. "Other Great Lakes States" includes the states of Indiana, Michigan, Minnesota, Ohio, Pennsylvania, New York and Wisconsin. "International Joint Commission" is the permanent unitary body established under the Boundary Waters Treaty of 1909 between the United States and Canada to help prevent and settle disputes regarding the use of boundary waters. (Source: P.A. 89-445, eff. 2-7-96.)

Source: official Illinois text · Last verified 2026-08-27

At a glance

  • Citation: Illinois Compiled Statutes § 1.1
  • Jurisdiction: Illinois
  • Code: Illinois Compiled Statutes
  • Text: transcribed from the official source (verify below)

Verify the text

Statute text is transcribed from the official Illinois Compiled Statutes. Confirm it against the primary source before relying on it:

Not legal advice. Verify against the official source and consult a licensed Illinois attorney.

Common questions

What is the source of Illinois Compiled Statutes § 1.1?

The text above is transcribed from the Illinois Compiled Statutes, the codified statutes of Illinois. The official publisher link appears under "Verify the text" on this page.

What subject does Illinois Compiled Statutes § 1.1 address?

It addresses the rule set out in the section text. Read the section together with the surrounding provisions listed under "Nearby provisions" for the full picture.

Is Illinois Compiled Statutes § 1.1 still in force?

Statutes are amended, repealed, and renumbered every session. Confirm the current version at the official Illinois source before relying on this text.

Can this page be used as legal advice?

No. This is a reference transcription for research. Applying Illinois law to your facts requires a licensed Illinois attorney who can review the specifics.