1. ------IND- 2017 0446 FIN EN- ------ 20171004 --- --- PROJET

draft 19 September 2017
1. ------IND- 2017 0446 FIN EN- ------ 20200831 --- --- FINAL

Ministry of the Environment Decree


General

§ 1
§ 1

Scope

This decree applies to the design and construction of water and sewerage systems for new buildings. The decree also applies to building extensions, increases of calculated floor area, repairs and renovations as well as changes to the building's intended use.

§ 2
This decree applies to the design and construction of water and sewerage systems for new buildings, as well as such systems located on properties. The decree also applies to building extensions, increases of calculated floor area, repairs and renovations as well as changes to the building's intended use.

§ 2

Definitions

For the purposes of this decree:

separate sewerage means a sewerage system in which waste water is conveyed in its own sewer, and storm water and foundation drainage water in their own sewer

special water system means equipment other than for the conveyance of potable household water

storm water means rainwater or meltwater to be conveyed from the ground surface, the roof of a building or other similar surfaces

air gap means the free vertical distance between the bottom edge (or equivalent) of the plumbing fixtures’ supply pipe and the highest possible water level in the tank (or equivalent) below it

service pipe means a water pipe that serves two or more water points

waste water means, in general, water to be conveyed away via the sewerage system that is chemically, microbiologically, physically or otherwise polluted

support means a holder that supports a pipe or sewer

fixed point means the anchorage of a water pipe or sewer which prevents movement of the pipe from its place of support

collector sewer means a sewer to which two or more drainage points are connected

connector pipe means a water pipe by which the plumbing fixtures are connected to the service pipe

connector sewer means a sewer by which a drainage point is connected to the collector sewer

connecting point means a point at which the building’s water and sewerage system is connected to the public water and sewerage system network

hot water supply means water produced by the heating of household water

design rainfall means the maximum rainfall occurring within ten minutes

design flow means the base flow value used for designing water pipes or sewers

standard flow means the base flow value either obtainable from a water point or to be conveyed to a drainage point

height of backwater means the approved maximum level to which the water level in a sewer can rise at the point where it joins the building

backwater valve means a valve which permits the flow of sewage in one direction only

pressure drainage means a sewerage system in which waste water, storm water or foundation drainage water is pumped

foundation drainage water means water that has infiltrated into the ground and is conveyed to a sewer or other place of discharge in order to dry the base and foundations of a building

vertical (riser) sewer means a sewer whose gradient relative to the vertical plane is less than 45°

fire-prevention water system means equipment intended for extinguishing fires

mixed sewerage means a sewerage system in which waste water, storm water and foundation drainage water are conveyed in the same sewer

shutoff valve means a device to open up or shut off water flow

household (potable) water supply means water that is used for drinking water, for preparing food and for preparing and processing products in food enterprises

service water pipe means a water pipe that connects the building’s water system to the common water pipe of a number of buildings

service sewer means a sewer that connects a building’s sewer to the common sewer of a number of buildings

stack vent means a pipe for ventilating a sewer and evening out pressure fluctuations therein

vacuum relief valve means a device which, when a specified degree of negative pressure occurs in a pipe or device, opens a link to the surrounding air and thus prevents the occurrence of a siphonage effect which causes back-siphonage

horizontal sewer means a sewer whose gradient relative to the vertical plane is greater than or equal to 45°

replaceable water pipe means a pipe that can be replaced and repaired without excessive work or without breaking any structures

placement of the water pipe or sewer within the building means a water pipe or sewer installed within or above a building’s foundation panel

placement of the water pipe or sewer in the ground means a water pipe or sewer installed in the ground below a building’s foundation panel or outside the foundation wall

plumbing fixtures means devices intended for drawing water, such as taps, mixers or the like

water system means the system for conveying potable water and hot household water

water seal means a device that prevents sewer gases from escaping from a sewer

water point means a place where water is drawn and that is equipped with plumbing fixtures

drainage appliances means devices intended for sewerage, such as sinks, floor drains, toilet pans or the like

sewerage system means the system for removing waste water, storm water or foundation drainage water

drainage point means a place of drainage that is equipped with drainage appliances

gradient sewer means a sewerage system in which waste water, storm water and foundation drainage water is removed under the action of gravity

minimum gradient means the smallest permitted gradient of a gradient sewer at which the sewer operates in a self-cleaning manner

closed flow system means a roof storm water system which operates on the basis of the flow of a full pipe

back check valve means a valve that permits the flow of water in a water pipe in one direction only
special water system means equipment other than for the conveyance of potable household water,

storm water means rainwater or meltwater to be conveyed from the ground surface, the roof of a building or other similar surfaces,

air gap means the free vertical distance between the bottom edge (or equivalent) of the plumbing fixtures’ supply pipe and the highest possible water level in the tank (or equivalent) below it,

service pipe means a water pipe that serves two or more water points,

waste water means, in general, water to be conveyed away via the sewerage system that is chemically, microbiologically, physically or otherwise polluted,

support means a holder that supports a pipe or sewer,

throttling valve means a device used to set the water flow,

fixed point means the anchorage of a water pipe or sewer which prevents movement of the pipe from its place of support,

collector sewer means a sewer to which two or more drainage points are connected,

connector pipe means a water pipe by which the plumbing fixtures are connected to the service pipe,

connector sewer means a sewer by which a drainage point is connected to the collector sewer,

connecting point means a point at which the building’s water and sewerage system is connected to the public water and sewerage system network,

hot water supply means water produced by the heating of household water,

design rainfall means the maximum rainfall occurring within ten minutes,

design flow means the base flow value used for designing water pipes or sewers,

standard flow means the base flow value either obtainable from a water point or to be conveyed to a drainage point,

height of backwater means the approved maximum level to which the water level in a sewer can rise at the point where it joins the building,

backwater valve means a valve which permits the flow of sewage in one direction only,

pressure drainage means a sewerage system in which waste water, storm water or foundation drainage water is pumped,

foundation drainage water means water that has infiltrated into the ground and is conveyed to a sewer or other place of discharge in order to dry the base and foundations of a building,

vertical (riser) sewer means a sewer whose gradient relative to the vertical plane is less than 45°,

fire-prevention water system means equipment intended for extinguishing fires,

shutoff valve means a device to open up or shut off water flow,

household (potable) water supply means water that is used for drinking water, for preparing food or for other household purposes, as well as for preparing, processing, storing and placing on the market foodstuffs in compliance with the provisions of § 16 of the Health Protection Act (763/1994) concerning household (potable) water,

service water pipe means a water pipe that connects the building’s water system to the common water pipe of a number of buildings,

service sewer means a sewer that connects a building’s sewer to the common sewer of a number of buildings,

stack vent means a pipe for ventilating a sewer and evening out pressure fluctuations therein,

vacuum relief valve means a device which, when a specified degree of negative pressure occurs in a pipe or device, opens a link to the surrounding air and thus prevents the occurrence of a siphonage effect which causes back-siphonage,

horizontal sewer means a sewer whose gradient relative to the vertical plane is greater than or equal to 45°,

replaceable water pipe means a pipe that can be replaced and repaired without excessive work or without breaking any structures,

placement of the water pipe or sewer within the building means a water pipe or sewer installed within or above a building’s foundation panel,

placement of the water pipe or sewer in the ground means a water pipe or sewer installed in the ground below a building’s foundation panel or outside the foundation wall,

plumbing fixtures means devices intended for drawing water, such as taps, mixers or the like,

water system means the system for conveying potable water and hot household water,

water seal means a device that prevents sewer gases from escaping from a sewer,

water point means a place where water is drawn and that is equipped with plumbing fixtures,

drainage appliances means devices intended for sewerage, such as sinks, floor drains, toilet pans or the like,

sewerage system means the system for removing waste water, storm water or foundation drainage water,

drainage point means a place of drainage that is equipped with drainage appliances,

gradient sewer means a sewerage system in which waste water, storm water and foundation drainage water is removed under the action of gravity,

minimum gradient means the smallest permitted gradient of a gradient sewer at which the sewer operates in a self-cleaning manner,

back check valve means a valve that permits the flow of water in a water pipe in one direction only,

overflow pipe means a pipe that prevents the device overfilling.

§ 3