65 ILCS 5/8-4-19

Any holder of a bond or bonds, or of any of the coupons of any bond or bonds of a municipality issued under Sections 8-4-14 through 8-4-23, may in any civil action, mandamus, injunction or other proceeding, enforce and compel performance of all duties required by this Division 4, including the maintaining and collecting of sufficient rates for that purpose and the application of income and revenue thereof.