18-29-608.6 Prohibited use of secondary water.

   No secondary water shall overflow or be discharged into any surge tank, storage tank, or reservoir, or shall in any way be piped or conveyed into the water supply system or into any building, structure, or premises, such that the overflow or discharge contaminates the fresh water supply from the mains of the Chicago Waterworks System either inside of the premises or in the water service pipe. Secondary water shall not be piped to or used in any plumbing fixture, or for cooling crushers, rollers, or mixers where foods, candies, liquids or materials are manufactured for human or animal consumption.

   In accordance with Section 11-8-390 of this Code, the installation of any potable water supply well after May 14, 1997 is prohibited except as otherwise permitted in that section.

(Amend Coun. J. 3-27-02, p. 82090, § 3)

18-29-608.6.1 Private water supplies.

   Cross-connections between a private water supply and a potable public supply shall be prohibited.

18-29-608.7 Stop-and-waste valves prohibited.

   Combination stop-and-waste valves or cocks shall not be installed underground.

18-29-608.8 Identification of potable and nonpotable water.

   In all buildings where two or more water distribution systems (one potable water and the other nonpotable water) or secondary water distribution systems are installed, each system shall be identified either by color marking or metal tags as required by ASME A13.1.

18-29-608.9 Re-utilization prohibited.

   Water utilized for the cooling of equipment of other processes shall not be returned to the potable water system. Such water shall be discharged into a drainage system through an air gap or shall be utilized for nonpotable purposes.

18-29-608.10 Reuse of piping.

   Piping that has been utilized for any purpose other than conveying potable water shall not be utilized for conveying potable water.

18-29-608.11 Painting of water tanks.

   The interior surface of a potable water tank shall not be lined, painted or repaired with any material that changes the taste, odor, color or potability of the water supply when the tank is placed in, or returned to, service.