EN 14654-4:2021

SLOVENSKI STANDARD
01-marec-2021
Sistemi za odvod odpadne vode in kanalizacijo zunaj stavb - Upravljanje in nadzor
aktivnosti - 4. del: Kontrola vnosa pri uporabnikih
Drain and sewer systems outside buildings - Management and control of activities - Part
4: Control of inputs from users
Entwässerungssysteme außerhalb von Gebäuden - Management und Überwachung von
Maßnahmen - Teil 4: Kontrolle von Einleitungen der Nutzer
Réseaux d'évacuation et d'assainissement à l'extérieur des bâtiments - Gestion et
contrôle des activités opérationnelles - Partie 4: Contrôle des intrants des usagers
Ta slovenski standard je istoveten z: EN 14654-4:2021
ICS:
93.030 Zunanji sistemi za odpadno External sewage systems
vodo
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 14654-4
EUROPEAN STANDARD
NORME EUROPÉENNE
January 2021
EUROPÄISCHE NORM
ICS 93.030
English Version
Drain and sewer systems outside buildings - Management
and control of activities - Part 4: Control of inputs from
users
Réseaux d'évacuation et d'assainissement à l'extérieur Entwässerungssysteme außerhalb von Gebäuden -
des bâtiments - Gestion et contrôle des activités Management und Überwachung von Maßnahmen - Teil
opérationnelles - Partie 4: Contrôle des intrants des 4: Kontrolle von Einleitungen der Nutzer
usagers
This European Standard was approved by CEN on 6 December 2020.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 14654-4:2021 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 General . 6
5 Integrated sewer system management planning . 7
5.1 Introduction . 7
5.2 Control of inputs from users . 7
6 Preparation of the input control programme . 7
6.1 Introduction . 7
6.2 Review of the inputs control activities planning . 7
6.3 Investigation . 7
6.4 Assessment . 9
6.5 Development of the programme . 10
7 Preparation of the project specification . 13
7.1 Introduction . 13
7.2 Review of the project description and project objectives . 13
7.3 Investigation . 13
7.4 Assessment . 13
7.5 Drafting the project specification. 14
8 Implementation of projects . 17

9 Measurement of conformity . 18
9.1 Measurement methods . 18
9.2 Non-conformities . 18
9.3 Post project appraisal . 18
10 Review of plan and programme . 18
Annex A (normative) Impacts of inappropriate inputs from users . 19
Annex B (informative) Criteria for assessment of generally inappropriate inputs . 24
Bibliography . 26

European foreword
This document (EN 14654-4:2021) has been prepared by Technical Committee CEN/TC 165
“Wastewater Engineering”, the secretariat of which is held by DIN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by July 2021, and conflicting national standards shall be
withdrawn at the latest by July 2021.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
EN 14654 consists of the following parts, under the general title Drain and sewer systems outside
buildings — Management and control of activities:
— Part 1: General;
— Part 2: Rehabilitation;
— Part 3: Drain and sewer cleaning;
— Part 4: Control of inputs from users (the present document).
Other parts, dealing with other activities, may be added later.
In drafting this part of EN 14654, account has been taken of other available standards, in particular
EN 752, Drain and sewer systems outside buildings and EN 13508 Investigation and assessment of drain
and sewer systems outside buildings.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
1 Scope
This document establishes requirements for the management and control of activities in drain and
sewer systems outside buildings and specifies requirements for development and implementation of
work programmes, and the selection of techniques.
This document together with EN 14654-1:2021 covers the control of inputs from users.
It is applicable to drain and sewer systems from the point where wastewater leaves a building, roof
drainage system, or paved area, to the point where it is discharged into a wastewater treatment plant or
receiving water body.
Drains and sewers below buildings are included provided that they do not form part of the drainage
system of the building.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 752:2017, Drain and sewer systems outside buildings - Sewer system management
EN 14654-1:2021, Drain and sewer systems outside buildings - Management and control of operational
activities - Part 1: General requirements
EN 16323:2014, Glossary of wastewater engineering terms
EN 13508-2:2003+A1:2011, Investigation and assessment of drain and sewer systems outside buildings –
Part 2: Visual inspection coding system
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 16323:2014, EN 752:2017 and
the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at http://www.electropedia.org/
NOTE Certain key definitions from EN 16323:2014 have been repeated below for clarity. The following
additional terms used in this document are defined in EN 16323:2014:
— drain;
— sewer system;
— receiving water body;
— wastewater treatment plant;
— sewer.
3.1
domestic wastewater
water polluted by the human life, including water discharged from kitchens, laundry rooms, lavatories,
bathrooms, toilets and similar facilities
[SOURCE: EN 16323:2014, 2.1.2.3]
3.2
foul wastewater
wastewater comprising domestic wastewater and/or industrial wastewater
[SOURCE: EN 16323:2014, 2.1.2.6]
3.3
industrial wastewater
wastewater discharge resulting from any industrial or commercial activity
[SOURCE: EN 16323:2014, 2.1.2.7]
3.4
input
any solid or liquid matter that is discharged into or otherwise enters a drain or sewer system including
wastewater
3.5
non-domestic wastewater
water polluted by industrial, craft or commercial activity
[SOURCE: EN 16323:2014, 2.1.2.5]
3.6
surface water
water from precipitation, which has not seeped into the ground and is discharged to the drain or sewer
system directly from the ground or from exterior building surfaces
[SOURCE: EN 16323:2014, 2.1.1.3]
3.7
user
any individual, domestic or non-domestic entity discharging into a drain or sewer system
3.8
wastewater
water composed of any combination of water discharged from domestic, industrial or commercial
premises, surface run-off and accidentally any sewer infiltration water
[SOURCE: EN 16323:2014, 2.3.10.65]
4 General
Foul drain and sewer systems are designed to receive inputs of domestic wastewater and some types of
non-domestic wastewater (see EN 752:2017, 8.2).
Surface water systems are designed only to receive inputs of surface water (see EN 752:2017, 8.2).
Combined drain and sewer systems are designed to receive inputs of domestic wastewater, some types
of non-domestic wastewater and a certain amount of surface water (see EN 752:2017, 8.2).
Most types of sewer systems are constructed for foul inputs consisting primarily of human waste, toilet
paper, laundry water and kitchen washing up water. Increasingly foul inputs tend to include products
that can be harmful to sewer systems. Examples of such generally harmful inputs are listed in Annex B.
Inputs of non-domestic wastewater to foul and combined drain and sewer systems are often controlled
by formal agreements or regulations. Inputs of other sources of foul wastewater to foul and combined
drain and sewer systems are not usually subject to these formal controls.
Controls are sometimes placed on the input of polluted surface water to surface water and combined
drain and sewer systems.
The input of surface water to combined drain and sewer systems is sometimes subject to control to
limit the amount of surface water discharged.
National and local regulations can specify controls on the inputs to drain and sewer systems.
The methods of control available to wastewater utilities depend on national and local regulations.
The control of inputs to drains and sewers can be carried out pro-actively, to prevent problems
occurring, or reactively in response to problems that have occurred. When control is required before
connecting to the network, appropriate access to the incoming discharge is nece
...