18-29-605.2 Soil and ground water.

   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.

18-29-605.3 Lead content of water supply pipe and fittings.

   Pipe and pipe fittings, including valves and faucets, utilized in the water supply system shall have not more than 8-percent lead content.

(Amend Coun. J. 11-16-16, p. 37901, Art. IV, § 7; Amend Coun. J. 10-14-21, p. 37722, Art. VI, § 15)

18-29-605.3.1 Lead content of drinking water pipe and fittings.*

   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.

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

 

18-29-605.4.1 Materials for supply pipes and fittings.

   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)

18-29-605.5 Water distribution pipe.

   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).

Table 18-29-605.5
Water Distribution Pipe

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.

18-29-605.6 Fittings.

   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.

Table 18-29-605.6
Pipe Fittings

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)

18-29-605.7 Valves.

   All valves shall be compatible with the type of piping material installed in the system.