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The installation of a water service pipe shall be prohibited in soil and ground water contaminated with solvents, fuels, organic compounds or other detrimental materials causing permeation, corrosion, degradation or structural failure of the piping material. Where detrimental conditions are suspected, a chemical analysis of the soil and ground water conditions shall be required to ascertain the acceptability of the water service material for the specific installation. Where detrimental conditions exist, approved alternative materials or routing shall be required.
Pipe, pipe fittings, joints, valves, faucets and fixture fittings utilized to supply water for drinking or cooking purposes shall comply with NSF 372 and shall have a weighted average lead content of 0.25 percent or less.
(Added Coun. J. 10-14-21, p. 37722, Art. VI, § 15)
* Editor's note – Coun. J. 10-14-21, p. 37722, Art. VI, § 15, numbered this section as 605.3.1; renumbered as § 18-29-605.3.1 at the discretion of the editor. Future legislation will correct if needed.
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.
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 |
All new and replaced water supply pipes and fittings shall be of materials specified in Tables 18-29-605.4, 18-29-605.5 and 18-29-605.6, subject to the restrictions indicated in Column B of the table. Water supply pipe and fittings shall conform to the standards cited in Tables 18-29-605.4, 18-29-605.5 and 18-29-605.6 and to the lead content restrictions specified in Section 18-29-605.3.
(Amend Coun. J. 11-16-16, p. 37901, Art. IV, § 8)
Water distribution pipe shall conform to NSF 61 and shall conform to one of the standards listed in Table 18-29-605.5. All hot water distribution pipe and tubing shall have a minimum pressure rating of 100 psi (690 kPa) at 1805°F (825°C).
Material | Standard |
Material | Standard |
Brass pipe | ASTM B43 |
Chlorinated Polyvinyl Chloride (CPVC) plastic pipe and tubing
a
| ASTM D2846; ASTM F441; ASTM F442; CSA B137.6 |
Polypropylene (PP) plastic pipe and tubing a | ASTM F1412 |
PVDF plastic pipe and tubing a | ASTM F1412 |
Copper or copper-alloy pipe | ASTM B42; ASTM B302 |
Copper or copper-alloy tubing (Type K, L, or M) | ASTM B74; ASTM B88; ASTM B251; ASTM B447 |
Galvanized steel pipe | ASTM A53 |
a. For secondary water used in process applications only.
Pipe fittings shall be approved for installation with the piping material installed and shall conform to the respective pipe standards or one of the standards listed in Table 18-29-605.6. All pipe fittings utilized in water supply systems shall also conform to NSF 61. The fittings shall not have ledges, shoulders or reductions capable of retarding or obstructing flow in the piping. Ductile and gray iron pipe fittings shall be cement mortar lined in accordance with AWWA C104.
Material | Standard |
Material | Standard |
Cast iron | ASME B16.4; ASME B16.12 |
Polypropylene (PP) plastic pipe and tubing a | ASTM F2389; CSA B137.11 |
PVDF plastic pipe and tubing a | ASTM F1412 |
Chlorinated polyvinyl chloride (CPVC) plastic a | ASSE 1061; ASTM D2846; ASTM F437; ASTM F438; ASTM F439; CSA B137.6 |
Copper or copper alloy | ASME B16.15; ASME B16.18; ASME B16.22; ASME B16.51; ASSE 1061; ASTM F1476; ASTM F1548; ASTM F3226 |
Gray iron and ductile iron | ASTM F1476; ASTM F1548; AWWA C110/A21.10; AWWA C153/A21.53 |
Malleable iron | ASME B16.3 |
Steel | ASME B16.9; ASME B16.11; ASME B16.28 |
a. For secondary water used in process applications only.
(Amend Coun. J. 10-14-21, p. 37722, Art. VI, § 16)
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