JOURNAL CORRECTION
Be It Ordained by the City Council of the City of Chicago:
SECTION 1. The ordinance (SO2022-3777) passed by the City Council of the City of Chicago on December 14, 2022 amending Titles 2, 4, 11, 14A, 14B, 17 and 18 of the Municipal Code of Chicago and printed in the Journal ofthe Proceedings ofthe City Council ofthe City of Chicago, pages 58278 through 58304 is hereby corrected by deleting the first through last lines appearing on page 58297 and inserting in lieu thereof the language attached hereto as Exhibit "A".
ANDREA M. VALENCIA.
City Clerk
SECTION 2. This ordinance shall be in force and effect and shall be deemed to apply retroactively to December 14, 2022.
ExhibitA
built to conform to the specifications and dimensions for meter vaults issued by the Commissioner of Water Management.
SECTION 8. Section 18-29-604.8.1 of the Municipal Code of Chicago is hereby amended by deleting the language struck through and by inserting the language underscored, as follows:
18-29-604.8.1 Valve-design [Reservedl.
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SECTION 9. Section 18-29-604.9 of the Municipal Code of Chicago is hereby amended by inserting the language underscored, as follows:
18-29-604.9 Water hammer.
The flow of velocity of the water distribution system shall be controlled to reduce the possibility. of water hammer. An air chamber or water-hammer arrestor shall be installed where quick-closing valves are utilized. Water-hammer arrestors shall be installed in accordance with the manufacturer's instructions. Water-hammer arrestors shall conform to ASSE 1010. Air chambers shall comply with Section 18-29-604.9.1.
18-29-604.9.1 Air chambers.
An air chamber that is installed in a fixture supply shall be 12 inches (304.8 mm) in length and the same diameter as the fixture supply, or an air chamber with an equivalent volume may be used. An air chamber thai is installe...
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