Soil quality - Conceptual site models for potentially contaminated sites (ISO 21365:2019)

This document provides guidance on developing and using conceptual site models (CSMs) through the various phases of investigation, remediation (if required), and any subsequent construction or engineering works.
It describes what CSMs are, what they are used for and what their constituents are. It stresses the need for an iterative and dynamic approach to CSM development.
This document is intended to be used by all those involved in developing CSMs and by those who rely on using them such as regulators, landowners, developers, and the public (and other relevant parties). Ideally, this includes representatives from all phases of the investigative and remedial processes, for example, preliminary assessment, detailed investigation, baseline human health and environmental risk assessments, and feasibility study, and, any subsequent construction or engineering work.
NOTE 1    This document is applicable whenever the presence of "potentially harmful" or "hazardous" substances are present irrespective of whether they are naturally occurring or present due to human activity (i.e. are "contaminants").
NOTE 2    Although most of the principles described for developing CSMs in this document can apply to other domains, such as groundwater resources management, the present document is specifically written for the management of potentially contaminated sites or known contaminated sites.

Bodenbeschaffenheit - Leitfaden zur Erstellung konzeptioneller Standortmodelle für kontaminationsverdächtige Flächen (ISO 21365:2019)

Dieses Dokument enthält eine Anleitung zur Entwicklung und Anwendung von konzeptionellen Standort-modellen (CSMs) im Verlauf der verschiedenen Phasen der Untersuchung, Sanierung (falls erforderlich) und aller darauffolgenden Baumaßnahmen oder ingenieurtechnischen Arbeiten.
Es beschreibt, was CSMs sind, wofür sie verwendet werden und aus welchen Komponenten sie bestehen. Es betont die Notwendigkeit für eine iterative und dynamische Vorgehensweise bei der Entwicklung eines CSM.
Dieses Dokument soll durch alle an der Entwicklung von CSMs Beteiligten und durch alle diejenigen, die auf deren Verwendung angewiesen sind, genutzt werden, beispielsweise Regulierungsbehörden, Grundstückseigentümer, Bauunternehmer und die Öffentlichkeit (sowie andere relevante Parteien). Dies schließt idealerweise Vertreter aus allen Phasen der Untersuchungs  und Sanierungsprozesse mit ein, beispielsweise der Erstbewertung, der detaillierten Untersuchung, der grundlegenden Risikobeurteilung für die menschliche Gesundheit und die Umwelt sowie einer Machbarkeitsstudie und aller nachfolgend durchgeführten Baumaßnahmen bzw. ingenieurtechnischen Arbeiten.
ANMERKUNG 1   Dieses Dokument gilt immer dann, wenn ein Vorkommen „potentiell gefährdender“ oder „gefährlicher“ Stoffe vorliegt, und zwar unabhängig davon, ob diese natürlicherweise oder aufgrund einer menschlichen Tätigkeit (d. h. als „Kontaminanten“) vorkommen.
ANMERKUNG 2   Auch wenn die meisten der in diesem Dokument zur Entwicklung von CSMs beschriebenen Grundsätze auf andere Bereiche wie das Management von Grundwasserressourcen anwendbar sein können, wurde das vorliegende Dokument spezifisch für das Management von kontaminationsverdächtigen Flächen oder kontaminierten Flächen verfasst.

Qualité du sol - Schémas conceptuels de sites pour les sites potentiellement pollués (ISO 21365:2019)

Le présent document fournit des recommandations relatives à l'élaboration et l'utilisation de schémas conceptuels de sites (SCS) tout au long des diverses phases d'investigation, de remédiation (si nécessaire) et de tous les chantiers ou travaux de génie civil ultérieurs.
Il décrit ce que sont les SCS, pourquoi ils sont utilisés et quels sont leurs constituants. Il souligne le besoin d'une approche itérative et dynamique pour l'élaboration des SCS.
Le présent document est destiné à être utilisé par toutes les personnes/entités impliquées dans l'élaboration de SCS et par celles qui reposent sur leur utilisation, comme les organismes de réglementation, les propriétaires fonciers, les développeurs et le grand public (et d'autres parties concernées). Idéalement, cela inclut des représentants de toutes les phases des processus d'investigation et de remédiation, par exemple l'évaluation préliminaire, l'investigation détaillée, l'évaluation de référence concernant les risques pour la santé humaine et l'environnement, ainsi que l'étude de faisabilité, et tous les chantiers et travaux de génie civil ultérieurs.
NOTE 1    Le présent document est applicable dès que des substances «potentiellement dangereuses» ou «dangereuses» sont présentes, que leur présence soit naturelle ou due à l'activité humaine (c'est-à-dire qu'il s'agit de «polluants»).
NOTE 2    Bien que la plupart des principes décrits pour l'élaboration des SCS dans ce document puissent s'appliquer à d'autres domaines, comme la gestion des ressources en eaux souterraines, le présent document est spécifiquement rédigé pour la gestion des sites potentiellement pollués ou des sites pollués connus.

Kakovost tal - Konceptualni modeli območij za domnevno onesnažena območja (ISO 21365:2019)

General Information

Status
Published
Publication Date
09-Jun-2020
Withdrawal Date
30-Dec-2020
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Start Date
10-Jun-2020
Completion Date
10-Jun-2020

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SLOVENSKI STANDARD
01-november-2020
Kakovost tal - Konceptualni modeli območij za domnevno onesnažena območja
(ISO 21365:2019)
Soil quality - Conceptual site models for potentially contaminated sites (ISO 21365:2019)
Bodenbeschaffenheit - Leitfaden zur Erstellung konzeptioneller Standortmodelle für
potenziell kontaminierte Standorte (ISO 21365:2019)
Qualité du sol - Schémas conceptuels de sites pour les sites potentiellement pollués
(ISO 21365:2019)
Ta slovenski standard je istoveten z: EN ISO 21365:2020
ICS:
13.080.01 Kakovost tal in pedologija na Soil quality and pedology in
splošno general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 21365
EUROPEAN STANDARD
NORME EUROPÉENNE
June 2020
EUROPÄISCHE NORM
ICS 13.080.01
English Version
Soil quality - Conceptual site models for potentially
contaminated sites (ISO 21365:2019)
Qualité du sol - Schémas conceptuels de sites pour les Bodenbeschaffenheit - Leitfaden zur Erstellung
sites potentiellement pollués (ISO 21365:2019) konzeptioneller Standortmodelle für potenziell
kontaminierte Standorte (ISO 21365:2019)
This European Standard was approved by CEN on 31 May 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
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 21365:2020 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
The text of ISO 21365:2019 has been prepared by Technical Committee ISO/TC 190 "Soil quality” of the
International Organization for Standardization (ISO) and has been taken over as EN ISO 21365:2020 by
Technical Committee CEN/TC 444 “Environmental characterization of solid matrices” the secretariat of
which is held by NEN.
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 December 2020, and conflicting national standards
shall be withdrawn at the latest by December 2020.
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.
According to the CEN-CENELEC Internal Regulations, the national standards organizations 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.
Endorsement notice
The text of ISO 21365:2019 has been approved by CEN as EN ISO 21365:2020 without any modification.

INTERNATIONAL ISO
STANDARD 21365
First edition
2019-10
Soil quality — Conceptual site models
for potentially contaminated sites
Qualité du sol — Schémas conceptuels de sites pour les sites
potentiellement pollués
Reference number
ISO 21365:2019(E)
©
ISO 2019
ISO 21365:2019(E)
© ISO 2019
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2019 – All rights reserved

ISO 21365:2019(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Basics . 3
4.1 Structure of this document . 3
4.2 Principles . 4
4.3 Scope of a conceptual site model . 5
4.4 Representing and communicating a conceptual site model . 5
5 Development of a conceptual site model . 6
5.1 Step wise procedure . 6
5.2 Step 1: Defining overall objectives and the boundaries (both spatial and temporal) . 8
5.3 Step 2: Identifying the known and potential contaminant(s) and characterizing the
source . 8
5.4 Step 3: Identifying and characterizing each known and potential contaminated medium . 9
5.5 Step 4: Identifying potential migration pathways .10
5.6 Step 5: Identifying potential receptors, exposure pathways and points of exposure .13
5.7 Step 6: Identifying possible foreseeable events .15
6 Conceptual site model development during site investigation .15
6.1 General .15
6.2 Preliminary investigation .16
6.3 Exploratory investigation .17
6.4 Detailed investigation .17
6.5 Supplementary Investigation .17
7 Conceptual site model for remediation and mitigation measures .18
8 Conceptual site model for construction works .18
9 Data collection and Quality Assurance .19
Annex A (informative) Expressions and illustrations of conceptual site models for
potentially contaminated sites .20
Annex B (informative) Scope of phases of investigation (based on ISO 18400-203) .33
Annex C (informative) Investigations phases and links with conceptual site model (adapted
from ISO 18400-202 and 18400-203) .35
Annex D (informative) Review during and after Remediation and Construction works .37
Bibliography .39
ISO 21365:2019(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document can be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/ patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following
URL: www .iso .org/ iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 190, Soil quality, Subcommittee
SC 7, Impact assessment.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/ members .html.
iv © ISO 2019 – All rights reserved

ISO 21365:2019(E)
Introduction
This document provides a definition of the conceptual site model (CSM) for contaminated sites
consistent with other ISO standards related to contaminated land. It refers to ISO accepted terminology
and generally accepted understanding of a CSM. Links with the ISO 18400 series of standards (Soil
quality — Sampling) are made. It is applicable to the management of potentially contaminated sites,
sites that are known to be contaminated, and also to land with naturally elevated concentra
...

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