Loading...
All service pipes in public ways or other places exposed to the weather shall be installed at a depth of not less than 60 inches (1525 mm) below the surface of the ground or pavement and at right angles to the main to which they are connected.
(a) Definitions. For purposes of this section, the following definitions shall apply:
"Sewer structure" means a building drain, building sewer, private sewer or public sewer.
"Water supply system" means a water main, water pipe, water service line or public water main.
(b) A water supply system shall be protected from a sewer structure, as follows:
(1) Lateral separation: A water supply system shall be separated at least ten feet laterally from any existing or proposed sewer structure, except when:
(A) local conditions prevent a lateral separation of ten feet;
(B) the water supply system invert is at least 18 inches above the crown of the sewer structure; and
(C) the water supply system is either in a separate trench or in the same trench on an undisturbed earth shelf located to one side of the sewer structure.
(2) Vertical separation:
(A) A water supply system shall be laid so that its invert is 18 inches above the crown of a sewer structure whenever a water supply system crosses a sewer structure. The vertical separation shall be maintained for that portion of the water supply system located laterally within ten feet of a sewer structure. The length of the water supply system pipe shall be centered over the sewer structure, and it must be crossed with joints equidistant from the sewer structure.
(B) A vertical separation of 18 inches shall be maintained between the invert of the sewer structure and the crown of the water supply system where a water supply system crosses under a sewer structure. In addition, support must be provided to the sewer structure to prevent it from settling and breaking the water supply system. Construction shall be extended on each side of the crossing until the lateral distance from the water supply system to the sewer structure is at least ten feet.
(c) The water supply system shall be constructed of a type of ductile iron pipe or copper or copper-alloy tubing listed in Table 18-29-605.4, and the sewer structure shall be constructed of a type of cast-iron pipe, ductile iron pipe, copper or copper-alloy tubing or PVC pipe listed in Table 18-29-702.3 when:
(i) it is technically and economically impractical to obtain proper lateral separation as described in subsection (b)(1) above; or
(ii) it is technically and economically impractical to obtain proper vertical separation as described in subsection (b)(2) above; or
(iii) the water supply system passes under a sewer structure.
(d) Special conditions. Alternate proposals shall be presented to the Commissioner of Water Management when extreme topographical, geological or existing structural conditions make compliance with subsection (b) of this section technically and economically impractical. The Commissioner may approve such a proposal if in the Commissioner's determination it is watertight construction and structurally equivalent to an approved water main material.
(e) Water supply systems shall be separated by a minimum of 25 feet laterally from septic tanks, disposal fields and seepage beds.
(f) Water supply systems shall be protected against entrance of hydrocarbons through diffusion from any material used in the construction of the line.
(Amend Coun. J. 7-29-15, p. 3537, § 4; Amend Coun. J. 10-14-21, p. 37722, Art. VI, § 4)
No ashes, cinders or refuse shall be used in backfllling any trench or excavation in which service pipes are installed. Each service pipe trench from the water main to the property line shall be filled with sand and compacted by flooding with water. When a service pipe is to be installed in soil which may have a destructive or deleterious effect it must be protected by methods approved by the Commissioner of Water Management.
(Amend Coun. J. 11-8-12, p. 38872, § 342; Amend Coun. J. 7-29-15, p. 3537, § 4; Amend Coun. J. 10-14-21, p. 37722, Art. VI, § 4)
No building, structure, or premises shall be allowed to have service from the Chicago Waterworks System until an application in writing has been made to the Commissioner of Water Management by the person desiring such service, and until the Commissioner of Water Management has given permission, provided the Commissioner of Water Management may delegate such authority to the Commissioner of Buildings.
(Amend Coun. J. 11-8-12, p. 38872, § 343; Amend Coun. J. 10-14-21, p. 37722, Art. VI, § 4)
Where application has been made for permission to connect at the main for water service for any projected building or structure, or for any alteration or addition in any building or structure, which from the information given in such application, would appear to come under any provision of this Article, said permit shall be authority to install metered service only.
Where this chapter requires the water supply for any building, structure, premises, or any part thereof to be under meter control, it shall be unlawful for any person to connect any building, structure, or premises, or any part thereof or addition thereto, with any service or supply pipe other than a service or supply controlled by a water meter. Such water meter shall be installed at the time of connection to the city's water system.
(Amend Coun. J. 7-29-15, p. 3537, § 4)
Where this chapter or the rules or regulations of the Commissioner of Water Management provide for the installation of a water meter on any service pipe supplying water from the Chicago Waterworks System to any building, structure, or premises, such meter shall be installed by a licensed and bonded plumbing contractor.
(Amend Coun. J. 10-14-21, p. 37722, Art. VI, § 4)
Loading...