Title 145 · WI 145
(11)
Citation: Wis. Stat. § 145.07
Section: 145.07
145.07 (11) .
145.01(10)
(10)
â
Plumbing.
145.01(10)(a)
(a)
âPlumbingâ means:
145.01(10)(a)1.
1.
All piping, fixtures, appliances, equipment, devices, and appurtenances in connection with water supply systems, water distribution systems, wastewater drainage systems, reclaimed water systems, and stormwater use systems, including hot water storage tanks, water treatment devices, and water heaters connected with these systems and also includes the installation thereof.
145.01(10)(a)2.
2.
The construction, connection, installation, service, or repair of any drain or wastewater piping system that connects to the mains or other terminal within the bounds of, or beneath an area subject to easement for highway purposes, including private on-site wastewater treatment systems and stormwater treatment and dispersal systems, and the alteration of any such systems, drains or wastewater piping.
145.01(10)(a)3.
3.
The construction, connection, installation, service, or repair of water service piping that connects to the main or other water utility service terminal within the bounds of, or beneath an area subject to easement for highway purposes and its connections.
145.01(10)(a)4.
4.
The water pressure system other than municipal systems as provided in ch. 281 .
145.01(10)(a)5.
5.
A plumbing and drainage system so designed and vent piping so installed as to keep the air within the system in free circulation and movement; to prevent with a margin of safety unequal air pressures of such force as might blow, siphon or affect trap seals, or retard the discharge from plumbing fixtures, or permit sewer air to escape into the building; to prohibit cross-connection, contamination or pollution of the water supply and distribution systems; and to provide an adequate supply of water to properly serve, cleanse and operate all fixtures, equipment, appurtenances and appliances served by the plumbing system.
145.01(10)(br)
(br)
âPlumbingâ does not include any of the following:
145.01(10)(br)1.
1.
A rainwater gutter or downspout down to the point that it discharges into a plumbing system, a subsoil drain, or a foundation drain.
145.01(10)(br)2g.
2g.
A process water reuse system if the process water reuse system is not connected to any plumbing fixture or appliance.
145.01(10)(br)2m.
2m.
A stormwater culvert under a roadway or walkway that is placed there only to equalize the water level from one end of the culvert to the other end.
145.01(10)(br)3.
3.
The practical installation of process piping within a sewage disposal plant.
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2023-24 Wisconsin Statutes updated
through 2025 Wis. Act 103 and through all Supreme Court Orders and Controlled Substances Board Orders filed before and in effect on April 3, 2026.
Published and certified under s. 35.18. Changes effective after April 3, 2026, are designated by NOTES.
(Published 4-3-26)