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Municipal Code of Chicago
MUNICIPAL CODE OF CHICAGO
TITLE 1 GENERAL PROVISIONS
TITLE 2 CITY GOVERNMENT AND ADMINISTRATION
TITLE 3 REVENUE AND FINANCE
TITLE 4 BUSINESSES, OCCUPATIONS AND CONSUMER PROTECTION
TITLE 5 HOUSING AND ECONOMIC DEVELOPMENT
TITLE 6 HUMAN RIGHTS*
TITLE 7 HEALTH AND SAFETY
TITLE 8 OFFENSES AFFECTING PUBLIC PEACE, MORALS AND WELFARE
TITLE 9 VEHICLES, TRAFFIC AND RAIL TRANSPORTATION
TITLE 10 STREETS, PUBLIC WAYS, PARKS, AIRPORTS AND HARBORS
TITLE 11 UTILITIES AND ENVIRONMENTAL PROTECTION
TITLE 12 RESERVED
TITLE 13 BUILDINGS AND CONSTRUCTION
TITLE 14 RESERVED*
TITLE 14A ADMINISTRATIVE PROVISIONS OF THE CHICAGO CONSTRUCTION CODES*
TITLE 14B BUILDING CODE*
TITLE 14C CONVEYANCE DEVICE CODE*
TITLE 14E ELECTRICAL CODE*
TITLE 14F FIRE PREVENTION CODE*
TITLE 14G FUEL GAS CODE*
TITLE 14M MECHANICAL CODE*
TITLE 14N 2022 ENERGY TRANSFORMATION CODE*
TITLE 14P PLUMBING CODE*
TITLE 14R BUILDING REHABILITATION CODE*
TITLE 14X MINIMUM REQUIREMENTS FOR EXISTING BUILDINGS*
TITLE 15 FIRE PREVENTION
TITLE 16 LAND USE
TITLE 17 CHICAGO ZONING ORDINANCE
TITLE 18 BUILDING INFRASTRUCTURE
CHAPTER 18-11 RESERVED*
CHAPTER 18-13 RESERVED*
CHAPTER 18-14 BUILDING ENERGY USE BENCHMARKING
CHAPTER 18-27 RESERVED*
CHAPTER 18-28 MECHANICAL SYSTEMS*
CHAPTER 18-29 PLUMBING*
Article 1. Administration (18-29-101 et seq.)
Article 2. Definitions (18-29-201 et seq.)
Article 3. General Regulations (18-29-301 et seq.)
Article 4. Fixtures, Faucets and Fixture Fittings (18-29-401 et seq.)
Article 5. Water Heaters (18-29-501 et seq.)
Article 6. Water Supply and Distribution (18-29-601 et seq.)
18-29-601 General.
18-29-601.1 Scope.
18-29-601.2 Inspections and notices.
18-29-601.3 Access for inspections.
18-29-601.4 Solar energy utilization.
18-29-602 Water Required.
18-29-602.1 General.
18-29-602.1.1 Obligations of water consumers.
18-29-602.1.2 Obligations of water consumers - Private water mains on private property.
18-29-602.2 Potable water required.
18-29-602.3 Deliberately omitted.
18-29-602.4 Reserve water supply.
18-29-602.4.1 Installation of line valves or taps.
18-29-602.4.2 Dual meter settings.
18-29-603 Water Service.
18-29-603.1 Size of water service pipe and water meter.
18-29-603.1.1 Meter spreader connection.
18-29-603.1.2 Water service for fire protection systems.
18-29-603.1.3 Permit required.
18-29-603.2 Separation of water service and building sewer/drain.
18-29-603.2.1 Water supply systems installed near a sewer structure.
18-29-603.2.2 Reserved.
18-29-603.2.3 Backfill.
18-29-603.3 Metered service.
18-29-603.3.1 Authority.
18-29-603.3.2 Connection to metered service.
18-29-603.3.3 Licensed and bonded contractor.
18-29-603.3.4 Location.
18-29-603.3.5 Construction of meter vaults.
18-29-603.3.6 Installation of taps.
18-29-603.3.7 Plans accompany permit application.
18-29-603.3.8 Notification of wrecking buildings for terminating water service.
18-29-604 Design of Building Water Distribution System.
18-29-604.1 General.
18-29-604.2 System interconnection.
18-29-604.3 Water distribution system design criteria.
18-29-604.4 Maximum flow and water consumption.
18-29-604.4.1 WaterSense compliance.
18-29-604.4.2 Reserved.
18-29-604.5 Size of fixture supply.
18-29-604.5.1 Minimum size.
18-29-604.6 Variable street pressures.
18-29-604.7 Inadequate water pressure.
18-29-604.8 Water pressure reducing valve or regulator.
18-29-604.8.1 Reserved.
18-29-604.8.2 Repair and removal.
18-29-604.9 Water hammer.
18-29-604.9.1 Air chambers.
18-29-604.10 Size of water supply pipes.
18-29-604.10.1 Minimum sizes of branch distributing pipes for fixtures and appliances.
18-29-604.10.1.1 Demand load.
18-29-604.10.1.2 Size of piping.
18-29-604.10.1.3 Available pressure.
18-29-604.10.2 Procedures for calculating sizing.
18-29-604.11 Individual pressure balancing in-line valves for individual fixture fittings.
18-29-604.11.1 Reserved.
18-29-605 Materials, Joints and Connections.
18-29-605.1 Water compatibility.
18-29-605.2 Soil and ground water.
18-29-605.3 Lead content of water supply pipe and fittings.
18-29-605.3.1 Lead content of drinking water pipe and fittings.*
18-29-605.4 Water service pipe.
18-29-605.4.1 Materials for supply pipes and fittings.
18-29-605.5 Water distribution pipe.
18-29-605.6 Fittings.
18-29-605.7 Valves.
18-29-605.8 Manufactured pipe nipples.
18-29-605.9 Prohibited joints and connections.
18-29-605.10 Flexible water connectors.
18-29-605.11 Deliberately omitted.
18-29-605.12 Brass.
18-29-605.12.1 Brazed joints.
18-29-605.12.2 Mechanical joints.
18-29-605.12.3 Threaded joints.
18-29-605.12.4 Welded joints.
18-29-605.13 Gray iron and ductile iron joints.
18-29-605.14 Reserved.
18-29-605.14.1 Reserved.
18-29-605.14.2 Reserved.
18-29-605.14.3 Reserved.
18-29-605.14.4 Threaded joints.
18-29-605.14.5 Welded joints.
18-29-605.15 Copper tubing.
18-29-605.15.1 Brazed joints.
18-29-605.15.2 Flared joints.
18-29-605.15.3 Grooved and shouldered mechanical joints.
18-29-605.15.4 Mechanical joints.
18-29-605.15.5 Press-connect joints.
18-29-605.15.6 Soldered joints.
18-29-605.15.7 Push-fit fitting joints.
18-29-605.16 CPVC plastic.
18-29-605.16.1 Mechanical joints.
18-29-605.16.2 Solvent cementing.
18-29-605.16.3 Threaded joints.
18-29-605.17 Steel.
18-29-605.17.1 Threaded joints.
18-29-605.17.2 Mechanical joints.
18-29-605.18 Deliberately omitted.
18-29-605.19 Deliberately omitted.
18-29-605.20 Deliberately omitted.
18-29-605.21 Joints between different materials.
18-29-605.21.1 Copper or copper-alloy tubing to galvanized steel pipe.
18-29-605.22 Protection for pipes and fixtures.
18-29-605.23 Hydrants and non-freeze hydrants protection.
18-29-605.24 Water supply pipe protection.
18-29-605.25 Refrigerant condensers.
18-29-605.26 Dead-ends prohibited.
18-29-605.27 Air conditioning and refrigeration systems.
18-29-605.28 Permissible exceptions.
18-29-606 Installation of the Building Water Distribution System.
18-29-606.1 Location of full-open valves.
18-29-606.2 Location of shutoff valves.
18-29-606.3 Access to valves.
18-29-606.4 Valve identification.
18-29-606.5 Water pressure booster systems.
18-29-606.5.1 Hydropneumatic system, booster pump system, gravity tank.
18-29-606.5.1.1 Requirements.
18-29-606.5.1.1.1 Pressure relief valve.
18-29-606.5.1.1.2 Compression tank.
18-29-606.5.1.1.3 Sludge drain pipe.
18-29-606.5.1.2 Booster pump system.
18-29-606.5.1.2.1 Gravity tanks.
18-29-606.5.1.2.2 Total pressure.
18-29-606.5.1.2.3 Low pressure cutoff.
18-29-606.5.2 Surge tank for pumps.
18-29-606.5.3 Check valves required.
18-29-606.5.3.1 Approval required.
18-29-606.5.4 Equipment required for tanks receiving city water.
18-29-606.5.4.1 Sludge drain pipe.
18-29-606.5.4.2 Size.
18-29-606.5.4.3 Covers and support.
18-29-606.5.5 Recycling system for vehicle wash installations.
18-29-606.5.6 Potable water inlet control and location.
18-29-606.5.7 Tank drain pipes.
18-29-606.5.8 Prohibited location of potable supply tanks.
18-29-606.5.9 Pressure relief valve requirements.
18-29-606.5.10 Pressure relief valves for hydropneumatic tanks.
18-29-606.6 Test of distribution pipes.
18-29-607 Hot Water Supply System.
18-29-607.1 Where required.
18-29-607.1.1 Temperature limiting means.
18-29-607.1.2 Tempered water temperature control.
18-29-607.1.2.1 Reserved.
18-29-607.2 Hot or tempered water supply to fixtures.
18-29-607.2.1 Circulation systems and heat trace systems for maintaining heated water temperature in distribution systems.
18-29-607.2.1.1 Pump controls for hot water storage system.
18-29-607.2.1.2 Demand recirculation controls for distribution systems.
18-29-607.2.1A Reserved.
18-29-607.2.2 Piping for recirculation systems having temperature-actuated mixing valves.
18-29-607.3 Thermal expansion control.
18-29-607.3.1 Reserved.
18-29-607.3.2 Reserved.
18-29-607.4 Flow of hot water to fixtures.
18-29-607.5 Insulation of piping.
18-29-607.6 Expansion joints.
18-29-608 Protection of Potable Water Supply.
18-29-608.1 General.
18-29-608.2 Plumbing fixtures.
18-29-608.3 Water supply pipes.
18-29-608.3.1 Special equipment, water supply protection.
18-29-608.4 Deliberately omitted.
18-29-608.5 Secondary water.
18-29-608.6 Prohibited use of secondary water.
18-29-608.6.1 Private water supplies.
18-29-608.7 Stop-and-waste valves prohibited.
18-29-608.8 Identification of potable and nonpotable water.
18-29-608.9 Re-utilization prohibited.
18-29-608.10 Reuse of piping.
18-29-608.11 Painting of water tanks.
18-29-608.12 Pumps and other appliances.
18-29-608.13 Backflow protection.
18-29-608.13.1 Air gap.
18-29-608.13.2 Reduced pressure principle backflow preventers.
18-29-608.13.3 Backflow preventer with intermediate atmospheric vent.
18-29-608.13.4 Barometric loop.
18-29-608.13.5 Atmospheric-type vacuum breakers.
18-29-608.13.6 Double check-valve assemblies.
18-29-608.14 Location of backflow preventers.
18-29-608.15 Protection of potable water outlets.
18-29-608.16 Connections to the potable water system.
18-29-608.16.1 Beverage carbonator.
18-29-608.16.1.1 Backflow preventer.
18-29-608.16.2 High-pressure steam boilers.
18-29-608.16.3 Connections to automatic fire sprinkler systems and standpipe systems.
18-29-608.16.4 Fire protection equipment, risers, standpipes, tanks to be drained and flushed.
18-29-608.16.5 Fire-extinguishing equipment cross-connection.
18-29-608.16.5.1 Prohibitions.
18-29-608.16.6 Chemical or petroleum pressure vessels.
18-29-608.16.6.1 Chemical or petroleum pressure vessels.
18-29-608.16.6.2 Water flushing or cooling.
18-29-608.16.6.3 Chemical, contaminated water, or sewage lines or vessels.
18-29-608.16.7 Deliberately omitted.
18-29-608.16.8 Portable cleaning equipment.
18-29-608.16.9 Dental pump equipment.
18-29-608.17 Private water supplies.
18-29-608.17.1 Well locations.
18-29-608.17.1.1 Distances.
18-29-608.17.1.2 Direct connections.
18-29-609 Health Care Plumbing.
18-29-609.1 General.
18-29-609.1.1 Where required.
18-29-609.2 Water service.
18-29-609.3 Hot water.
18-29-609.4 Vacuum breaker installation.
18-29-609.5 Prohibited water closet and clinical sink supply.
18-29-609.6 Clinical, hydrotherapeutic and radiological equipment.
18-29-609.7 Condensate drain trap seal.
18-29-609.8 Valve leakage diverter.
18-29-610 Disinfection of Potable Water System.
18-29-610.1 Scope.
18-29-611 Water Treatment Units.
18-29-611.1 Design.
18-29-611.2 Reverse osmosis systems.
Article 7. Sanitary Drainage (18-29-701 et seq.)
Article 8. Indirect/Special Waste (18-29-801 et seq.)
Article 9. Vents (18-29-901 et seq.)
Article 10. Traps, Separators and Interceptors (18-29-1001 et seq.)
Article 11. Storm Drainage (18-29-1101 et seq.)
Article 12. Swimming Pools and Other Swimming Facilities* (18-29-1201 et seq.)
Article 13. Referenced Standards
Appendix A Procedures for Calculating the Minimum Sizing of the Water Supply System
CHAPTER 18-30 RESERVED*
CHAPTER 18-31 RESERVED*
CHAPTER 18-32 RESERVED*
CHAPTER 18-36 REFERENCE STANDARDS*
APPENDIX TO THE MUNICIPAL CODE OF CHICAGO (RESERVED)*
TABLES
Chicago Zoning Ordinance and Land Use Ordinance
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18-29-602.1.1 Obligations of water consumers.
   Every person who shall construct, enter, alter, or use any part of the Chicago Water Works System and every consumer of water and owner, occupant, or person in possession, charge or control of any building, structure, or premises having service therefrom, shall be governed by and subject to the provisions of this code governing the use of water and also such other rules and regulations governing the use of water as may from time to time be promulgated by the Commissioner of Water Management.
(Amend Coun. J. 11-8-12, p. 38872, § 338; Amend Coun. J. 10-14-21, p. 37722, Art. VI, § 2)
18-29-602.1.2 Obligations of water consumers – Private water mains on private property.
   (a)   Every person who constructs or owns a private water main and connection to the Chicago Water Works System and every consumer of water having service therefrom, whether owner, occupant, or person in possession, charge, or control of any building, structure, or premises, collectively “Owners”, shall be governed by and subject to the provisions of this Code governing the use of water.
   (b)   It shall be the duty of the owner or Owners of the property under which the private water main is located to maintain any private water main to the point where it connects to the Chicago Water Works System and to make any necessary repairs to the private water main. If any line providing service from the private water main is a lead service line, then it is the duty of the owner or Owners to replace the lead service line in the case of its damage.
   (c)   If the property owner or Owners fail to maintain or repair the private water main in violation of subsection (b), or if there is damage to a lead service line connected to the private water main, the Commissioner may notify the property owner or Owners in writing of the duty to maintain or repair the private water main, or replace the lead service line. The notification shall be sent via certified mail and shall contain the following information: (i) a statement describing the maintenance, repair, or replacement to be made; (ii) the penalty for noncompliance; and (iii) the date the notification was sent.
   (d)   The Commissioner may, subject to the availability of appropriated funds and subject to the owner or Owners executing a right-of-entry agreement with the City, cause the maintenance, repair, or replacement to the private water main and, subject to the Commissioner’s authority in Article IX of Chapter 11-12 of Title 11, the replacement of the lead service line connected to the private water main to be done at the owner's or Owners’ cost and expense. The owner or Owners shall pay the City in full for any costs and expenses which the City incurs in connection with the performance of that work.
(Added Coun. J. 11-15-23, p. 6542, Art. VIII, § 4; Amend Coun. J. 12-16-24, p. 22233, § 9)
18-29-602.2 Potable water required.
   Only potable water shall be supplied to plumbing fixtures that provide water for drinking, bathing or culinary purposes, or for the processing of food, medical or pharmaceutical products. Unless otherwise provided in this Article, potable water shall be supplied to all plumbing fixtures.
18-29-602.3 Deliberately omitted.
18-29-602.4 Reserve water supply.
   Whenever a continuous supply of water is deemed indispensable by the Commissioner of Buildings, Fire Commissioner or Commissioner of Water Management, the owner or occupant shall provide a tank (or other receptacle of sufficient capacity) to supply the needs of such building, structure or premises, including any required for fire protection, during the period that the pipe section to which the service pipe is connected is shut off for repairs, connections, extensions or testing purposes.
(Amend Coun. J. 11-8-12, p. 38872, § 339; Amend Coun. J. 10-14-21, p. 37722, Art. VI, § 3)
18-29-602.4.1 Installation of line valves or taps.
   In lieu of the installation of such a tank or other receptacle, the owner or occupant shall provide for continuous water supply by requesting the city to install line valves in the water main or to install a tap in the water main for an auxiliary or emergency connection of a second service pipe with separate meter control so that each service pipe shall have an independent source of supply.
18-29-602.4.2 Dual meter settings.
   To further insure a continuous supply of water where line valves are installed in the water main, dual meter settings shall be installed by the owner or occupant. The cost of these installations is to be borne by the owner or occupant of the building, structure or premises to which the water service is furnished.
18-29-603 Water Service.
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