US lawIllinoisStatutesChapter 415Act 53.510415 ILCS 5/3.510415 ILCS 5/3.510Last amended: 2002Year: 2026Length: 27 wordsOfficial source (415 ILCS 5/3.510) (was 415 ILCS 5/3.50) Sec. 3.510. Underground injection. "Underground injection" means the subsurface emplacement of fluids by well injection. (Source: P.A. 92-574, eff. 6-26-02.)Previous415 ILCS 5/3.505Next415 ILCS 5/3.515