(415 ILCS 5/19) (from Ch. 111 1/2, par. 1019)
    Sec. 19. Owners or official custodians of public water supplies shall submit such samples of water for analysis and such reports of operation pertaining to the sanitary quality, mineral quality, or adequacy of such supplies as may be requested by the Agency. Such samples and reports shall be submitted within 15 days after demand by the Agency.
(Source: P.A. 76-2429.)