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Water service pipe.

Municipal Code of Chicago § 18-29-605.4
in effect
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18-29-605.4 Water service pipe. Water service pipe shall conform to NSF 61 and to one of the standards listed in Table 18-29-605.4. All water service pipe or tubing, installed underground and outside of the structure, shall have a minimum working pressure rating of 160 psi (1100 kPa) at 73.45°F (23.03°C). Where the water pressure exceeds 160 psi (1100 kPa), piping material shall have a minimum rated working pressure equal to the highest available pressure. All ductile iron water pipe shall be cement mortar lined in accordance with AWWA C104. Table 18-29-605.4 Water Service Pipe Material | Standard Copper or copper-alloy tubing (Type K) | ASTM B75; ASTM B88; ASTM B251; ASTM B447 Ductile iron water pipe | AWWA C151; AWWA C115
Source: City of Chicago, Municipal Code of Chicago (American Legal Publishing, codelibrary.amlegal.com)URL: https://codelibrary.amlegal.com/codes/chicago/latest/chicago_il/0-0-0-2691524Fetched: 10/24/2026

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