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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.)
Article 7. Sanitary Drainage (18-29-701 et seq.)
18-29-701 General.
18-29-701.1 Scope.
18-29-701.2 Sewer required.
18-29-701.3 Separate building sewer connection.
18-29-701.4 Sewage treatment.
18-29-701.5 Damage to drainage system or public sewer.
18-29-701.6 Tests.
18-29-701.7 Connections.
18-29-701.8 Notification of wrecking buildings and sealing or abandoning sewer facilities.
18-29-702 Materials.
18-29-702.1 Above-ground sanitary drainage and vent pipe.
18-29-702.1.1 Mixed-occupancy buildings.
18-29-702.2 Underground building sanitary drainage and vent pipe.
18-29-702.3 Building sewer pipe.
18-29-702.4 Fittings.
18-29-702.5 Temperature rating.
18-29-702.5.1 Reserved.
18-29-702.5.1.1 Reserved.
18-29-702.5.1.2 Reserved.
18-29-702.5.1.3 Reserved.
18-29-702.6 Chemical waste system.
18-29-702.6.1 Reserved.
18-29-702.6.2 Reserved.
18-29-702.7 Reserved.
18-29-702.8 Safe pans.
18-29-702.8.1 Material.
18-29-702.8.2 Construction.
18-29-703 Building Sewer.
18-29-703.1 Building sewers, building drains or drainage systems installed near the water pipes and water supply system.
18-29-703.2 Drainage pipe in filled ground.
18-29-703.3 Sanitary and storm sewers.
18-29-703.3.1 Combined sewers.
18-29-703.4 Existing building sewers and drains.
18-29-703.4.1 Inspection of existing underground building sewers for drain and reuse.
18-29-704 Drainage Piping and Installation.
18-29-704.1 Slope of horizontal drainage piping.
18-29-704.2 Change in size.
18-29-704.3 Connections to offsets and bases of stacks.
18-29-704.4 Future fixtures.
18-29-704.5 Reserved.
18-29-704.5.1 Reserved.
18-29-704.5.2 Reserved.
18-29-705 Joints.
18-29-705.1 General.
18-29-705.2 Deliberately omitted.
18-29-705.3 Deliberately omitted.
18-29-705.4 Reserved.
18-29-705.4.1 Reserved.
18-29-705.4.2 Reserved.
18-29-705.4.3 Reserved.
18-29-705.4.4 Reserved.
18-29-705.5 Cast iron.
18-29-705.5.1 Caulked joints.
18-29-705.5.2 Compression gasket joints.
18-29-705.5.3 Mechanical joint coupling.
18-29-705.6 Concrete joints.
18-29-705.7 Copper pipe.
18-29-705.7.1 Brazed joints.
18-29-705.7.2 Mechanical joints.
18-29-705.7.3 Soldered joints.
18-29-705.7.4 Threaded joints.
18-29-705.7.5 Welded joints.
18-29-705.8 Copper tubing.
18-29-705.8.1 Brazed joints.
18-29-705.8.2 Mechanical joints.
18-29-705.8.3 Soldered joints.
18-29-705.9 Borosilicate glass joints.
18-29-705.9.1 Caulked joints.
18-29-705.10 Steel.
18-29-705.10.1 Threaded joints.
18-29-705.10.2 Mechanical joints.
18-29-705.11 Deliberately omitted.
18-29-705.12 PVC plastic.
18-29-705.12.1 Mechanical joints.
18-29-705.12.2 Solvent cementing.
18-29-705.12.3 Threaded joints.
18-29-705.13 Vitrified clay.
18-29-705.14 Polyethylene plastic.
18-29-705.14.1 Heat-fusion joints.
18-29-705.14.2 Mechanical joints.
18-29-705.15 Polyolefin plastic.
18-29-705.15.1 Heat-fusion joints.
18-29-705.15.2 Mechanical and compression sleeve joints.
18-29-705.16 Polyvinylidene fluoride plastic.
18-29-705.16.1 Heat-fusion joints.
18-29-705.16.2 Mechanical and compression sleeve joints.
18-29-705.17 Reserved.
18-29-705.18 Joints between different materials.
18-29-705.18.1 Copper pipe or tubing to cast-iron hub pipe.
18-29-705.18.2 Copper or copper-alloy pipe or tubing to galvanized steel pipe.
18-29-705.18.3 Cast-iron pipe to galvanized steel or brass pipe.
18-29-705.18.4 Plastic pipe or tubing to other piping material.
18-29-705.18.5 Deliberately omitted.
18-29-705.18.6 Borosilicate glass to other materials.
18-29-705.18.7 Stainless steel drainage systems to other materials.
18-29-705.19 Drainage slip joints.
18-29-705.20 Caulking ferrules.
18-29-705.21 Reserved.
18-29-705.22 Stainless steel drainage systems.
18-29-706 Connections Between Drainage Piping And Fixtures.
18-29-706.1 Connections and changes in direction.
18-29-706.2 Obstructions.
18-29-706.3 Installation of fittings.
18-29-707 Prohibited Joints and Connections.
18-29-707.1 Prohibited joints.
18-29-708 Cleanouts.
18-29-708.1 Scope.
18-29-708.2 Cleanout plugs.
18-29-708.3 Where required.
18-29-708.3.1 Horizontal drains within buildings.
18-29-708.3.2 Building sewers.
18-29-708.3.3 Changes of direction.
18-29-708.3.4 Base of stack.
18-29-708.3.5 Building drain and building sewer junction.
18-29-708.3.6 Manholes.
18-29-708.4 Concealed piping.
18-29-708.5 Opening direction.
18-29-708.6 Prohibited installation.
18-29-708.7 Minimum size.
18-29-708.8 Pipes 8 inches and larger.
18-29-708.9 Clearances.
18-29-708.10 Access.
18-29-709 Fixture Units.
18-29-709.1 Values for fixtures.
18-29-709.2 Fixtures not listed in Table 18-29-709.1.
18-29-709.3 Conversion of gpm flow to dfu values.
18-29-709.4 Deliberately omitted.
18-29-709.5 Values for indirect waste receptor.
18-29-709.5.1 Clear-water waste receptors.
18-29-710 Drainage System Sizing.
18-29-710.1 Maximum fixture unit load.
18-29-710.1.1 Sizing building drains and building sewers for combined sanitary and storm drainage.
18-29-710.1.2 Minimum size.
18-29-710.1.3 Horizontal stack offsets.
18-29-710.1.4 Vertical stack offsets.
18-29-710.2 Future fixtures.
18-29-710.3 Underground drainage piping.
18-29-711 Offsets in Drainage Piping in Buildings of Five Stories or More.
18-29-711.1 Horizontal branch connections above or below vertical stack offsets.
18-29-711.1.1 Omission of vents for vertical stack offsets.
18-29-711.2 Horizontal branch connections to horizontal stack offsets.
18-29-711.3 Horizontal stack offsets.
18-29-711.3.1 Omission of vents for horizontal stack offsets.
18-29-711.3.2 Suds pressure zones.
18-29-711.3.2.1 Height.
18-29-711.3.2.2 Upstream.
18-29-711.3.2.3 Downstream.
18-29-711.4 Offsets below lowest branch.
18-29-712 Sumps and Ejectors.
18-29-712.1 Building drains below sewer.
18-29-712.2 Check and gate valve required.
18-29-712.3 Sump design.
18-29-712.3.1 Sump pump.
18-29-712.3.2 Sump pit.
18-29-712.3.3 Discharge piping.
18-29-712.3.4 Maximum effluent level.
18-29-712.3.5 Ejector connection to the drainage system.
18-29-712.4 Sewage pumps and sewage ejectors.
18-29-712.4.1 Capacity.
18-29-712.4.2 Duplex equipment required.
18-29-713 Health Care Plumbing.
18-29-713.1 Scope.
18-29-713.2 Bedpan washers and clinical sinks.
18-29-713.3 Indirect waste.
18-29-713.4 Vacuum system station.
18-29-713.5 Bottle system.
18-29-713.6 Central disposal system equipment.
18-29-713.7 Central vacuum or disposal systems.
18-29-713.7.1 Piping.
18-29-713.7.2 Velocity.
18-29-713.8 Vent connections prohibited.
18-29-713.9 Local vents and stacks for bedpan washers.
18-29-713.9.1 Multiple installations.
18-29-713.9.2 Trap required.
18-29-713.9.3 Trap seal maintenance.
18-29-713.10 Sterilizer vents and stacks.
18-29-713.10.1 Drainage.
18-29-713.11 Sterilizer vent stack sizes.
18-29-713.11.1 Bedpan steamers.
18-29-713.11.2 Boiling-type sterilizers.
18-29-713.11.3 Pressure sterilizers.
18-29-713.11.4 Pressure instrument washer sterilizer sizes.
18-29-714 Deliberately omitted.
18-29-715 Backwater Valves.
18-29-715.1 Sewage backflow.
18-29-715.2 Fixture branches.
18-29-715.3 Material.
18-29-715.4 Seal.
18-29-715.5 Diameter.
18-29-715.6 Location.
18-29-716 Flood Control.
18-29-716.1 Flood control devices.
18-29-716.2 Flood control systems.
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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18-29-701.8 Notification of wrecking buildings and sealing or abandoning sewer facilities.
   (a)   For purposes of this section, the following definitions shall apply:
   "Sealing or abandoning" means ceasing the use of a sewer facility by disconnecting and sealing it, or otherwise discontinuing its usage, as appropriate, in accordance with the department's written policy.
   "Sewer facility" means a building drain or building sewer, or any other sewer structure.
   (b)   No person shall destroy or permanently abandon: (i) any building or structure that has a sewer facility; or (ii) any sewer facility for any building or structure, without first:
      (1)   obtaining the applicable permit and giving prior written notice to the commissioner of water management; and
      (2)   sealing or abandoning to eliminate or prevent the leaking or wasting of sewerage water.
   (c)   The notice provided pursuant to subsection (b)(1) of this section shall be accompanied by:
      (i)   a diagram of the sewer facility;
      (ii)   the estimated costs of sealing or abandoning;
      (iii)   the posting of a surety bond, as determined by the commissioner of water management, to ensure the payment of all costs and charges for sealing or abandoning; and
      (iv)   a copy of the applicable permit application.
   (d)   The notice provided pursuant to subsection (b)(1) of this section shall be provided by a licensed expeditor, the person in charge of wrecking or destroying the building or structure, or the person in charge of sealing or abandoning or, if approved in advance, by the owner of the building or structure, or sewer facility.
   (e)   If the sealing or abandoning is not performed pursuant to the department's written policy, in addition to other applicable remedies, the commissioner of water management may repair the defect at the owner's expense, require the owner to repair the defect as directed by the commissioner, or terminate any new service to the building or structure at the owner's expense.
(Amend Coun. J. 7-29-15, p. 3537, § 5)
18-29-702 Materials.
18-29-702.1 Above-ground sanitary drainage and vent pipe.
   Above-ground soil, waste and vent pipe shall conform to one of the standards listed in Table 18-29-702.1. Use of combustible pipe materials shall be limited in accordance with note a to Table 18-29-702.1 and Section 18-29-702.1.1.
Table 18-29-702.1
Above-Ground Drainage and Vent Pipe
Material
Standard
Material
Standard
Cast-iron pipe, hub and spigot a
ASTM A74
Cast-iron pipe, hub and spigot b
Cast-iron pipe, hubless a
ASTM A74; ASTM A888; CISPI 301
Copper or copper-alloy pipe
ASTM B42; ASTM B43; ASTM B302
Copper or copper-alloy tubing (Type K, L or M)
ASTM B75; ASTM B88; ASTM B251; ASTM B306
Copper or copper-alloy tubing (Type DWV) a
Galvanized steel pipe
ASTM A53
Polyvinyl chloride (PVC) plastic pipe in IPS diameters, including Schedule 40, DR 22 (PS 200) and DR 24 (PS 140), with a solid wall a, c
ASTM D2665; CSA B181.2
Polyvinyl chloride (PVC) plastic pipe with a 3.25-inch O.D. and a solid wall a, c
ASTM D2949
Stainless steel drainage systems, Types 304 and 316L
ASME A112.3.1
 
For SI: 1 inch = 25.4 mm.
a.   Limited to areas of residential occupancy in buildings with a building height not exceeding 60 feet (18.3 m).
b.   Lead and oakum joints only.
c.   May be approved by the Commissioner of Buildings, pursuant to Section 14A-10-1003, for use in connection with animal care and indoor marine environments.
(Amend Coun. J. 3-27-02, p. 82090, § 3; Amend Coun. J. 7-29-15, p. 3537, § 4; Amend Coun. J. 10-14-21, p. 37722, Art. VII, § 2; Amend Coun. J. 12-14-22, p. 58278, Art. VI, § 11)
18-29-702.1.1 Mixed-occupancy buildings.
   Where the plumbing system in a mixed-occupancy building uses both combustible and noncombustible drainage and vent pipe materials in accordance with Table 18-29-702.1, the noncombustible pipe material shall extend as least 4 inches (102 mm) beyond the fire-resistance-rated assembly separating the residential occupancy from other areas of the building that are not eligible to use combustible pipe materials.
(Added Coun. J. 10-14-21, p. 37722, Art. VII, § 2)
18-29-702.2 Underground building sanitary drainage and vent pipe.
   Underground building sanitary drainage and vent pipe shall conform to one of the standards listed in Table 18-29-702.2.
Table 18-29-702.2
Underground Building Drainage and Vent Pipe
Material
Standard
Material
Standard
Cast-iron pipe, hub and spigot
ASTM A74
Copper or copper-alloy pipe
ASTM B42; ASTM B43; ASTM B302
Copper or copper-alloy tubing (Type K)
ASTM B75; ASTM B88; ASTM B251
Ductile iron pipe
AWWA C115; AWWA C151
Polyethylene (PE) plastic pipe (SDR-PR) a
ASTM F714
Polyvinyl chloride (PVC) plastic pipe in IPS diameters, including Schedule 40, DR 22 (PS 200) and DR 24 (PS 140), with a solid wall a, b
ASTM D2665; CSA B181.2
Polyvinyl chloride (PVC) plastic pipe with a 3.25-inch O.D. and a solid wall a, b
ASTM D2949
Stainless steel drainage systems, Type 316L
ASME A112.3.1
 
For SI: 1 inch = 25.4 mm.
a.   Limited in accordance with notes a and c to Table 18-29-702.1.
b.   Where used to comply with Section 18-29-602.3.1(c), PVC pipe shall also comply with Section 653.111 of Title 35 of the Illinois Administrative Code.
(Amend Coun. J. 3-27-02, p. 82090, § 3; Amend Coun. J. 7-29-15, p. 3537, § 4; Amend Coun. J. 10-14-21, p. 37722, Art. VII, § 2; Amend Coun. J. 12-14-22, p. 58278, Art. VI, § 12)
18-29-702.3 Building sewer pipe.
   Building sewer pipe shall conform to one of the standards listed in Table 18-29-702.3.
Table 18-29-702.3
Building Sewer Pipe a
Material
Standard
Material
Standard
Cast-iron pipe
ASTM A74; ASTM A888; CISPI 301
Concrete pipe, 24-inch or larger
ASTM C14; ASTM C76; CSA A257.1; CSA A257.2
Copper or copper-alloy tubing (Type K)
ASTM B75; ASTM B88; ASTM B251
Ductile iron pipe
AWWA C115; AWWA C151
Polyethylene (PE) plastic pipe (SDR-PR) b
ASTM F714
Polyvinyl chloride (PVC) plastic pipe in IPS diameters, including Schedule 40, DR 22 (PS 200) and DR 24 (PS 140), with a solid wall b, c
ASTM D2665
Polyvinyl chloride (PVC) plastic pipe in sewer and drain diameters, including PS 25, SDR 41 (PS 28), PS 35, SDR 35 (PS 46), PS 50, PS 100, SDR 26 (PS 115), PS 140 and PS 200, with a solid wall b, c
ASTM F891; ASTM D3034; CSA B182.2; CSA B182.4
Polyvinyl chloride (PVC) plastic pipe with a 3.25-inch O.D. and a solid wall b, c
ASTM D2949
Stainless steel drainage systems, Type 316L
ASME A112.3.1
Vitrified clay pipe, extra strength, 21-inch or smaller
ASTM C4; ASTM C700
 
For SI: 1 inch = 25.4 mm.
a.   Additional materials may be approved by the Commissioner of Water Management for subsurface soil drainage and non-conveyance stormwater management uses.
b.   Limited in accordance with notes a and c to Table 18-29-702.1.
(Amend Coun. J. 3-27-02, p. 82090, § 3; Amend Coun. J. 7-29-15, p. 3537, § 4; Amend Coun. J. 10-14-21, p. 37722, Art. VII, § 2; Amend Coun. J. 12-14-22, p. 58278, Art. VI, § 13)
18-29-702.4 Fittings.
   Pipe fittings shall be suitable for installation with the piping material and shall comply with the applicable standards listed in Table 18-29-702.4.
Table 18-29-702.4
Pipe Fittings
Material
Standard
Material
Standard
Cast iron
ASME B16.4; ASME B16.12; ASTM A74; ASTM A888; CISPI 301
Copper or copper-alloy
ASME B16.15; ASME B16.18; ASME B16.22; ASME B16.23; ASME B16.26; ASME B16.29
Glass
ASTM C1053
Gray iron and ductile iron
AWWA C110
Polyethylene (PE) a
ASTM D2683
Polyolefin a
ASTM F1412; CSA B181.3
Polyvinyl chloride (PVC) plastic in IPS diameters a, b
ASME A112.4.4; ASTM D2665; ASTM F1866
Polyvinyl chloride (PVC) plastic in sewer and drain diameters a, b
ASTM D3034
Polyvinyl chloride (PVC) plastic with a 3.25 inch O.D. a, b
ASTM D2949
Polyvinylidene fluoride (PVDF) plastic a
ASTM F1673; CSA B181.3
Stainless steel drainage systems, Types 304 and 316L
ASME A112.3.1
Steel
ASME B16.9; ASME B16.11; ASME B16.28
Vitrified clay pipe, extra strength
ASTM C700
 
For SI: 1 inch = 25.4 mm.
a.   Limited in accordance with notes a and c to Table 18-29-702.1 or for use with chemical waste systems in accordance with Section 18-29-702.6.
b.   Where used to comply with Section 18-29-602.3.1(c), PVC pipe fittings shall also comply with Section 653.111 of Title 35 of the Illinois Administrative Code.
(Amend Coun. J. 7-29-15, p. 3537, § 4; Amend Coun. J. 10-14-21, p. 37722, Art. VII, § 2; Amend Coun. J. 12-14-22, p. 58278, Art. VI, § 14)
18-29-702.5 Temperature rating.
   Where the wastewater temperature will be greater than 140°F (60°C), the sanitary drainage piping material shall be rated for the highest temperature of the wastewater.
(Amend Coun. J. 10-14-21, p. 37722, Art. VII, § 2)
18-29-702.5.1 Reserved.
Editor's note – Coun. J. 10-14-21, p. 37722, Art. VII, § 2, repealed § 18-29-702.5.1, which pertained to glass pipe.
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