ISO 18400-203-2018 PDF

Full title and description

ISO 18400-203:2018 — Soil quality — Sampling — Part 203: Investigation of potentially contaminated sites. This International Standard provides guidance for planning and carrying out investigations where soil contamination is known or suspected, or where soil quality must be determined to support decisions about reuse, disposal or remediation.

Abstract

This document gives guidance on the investigation of sites where contamination is suspected or known, on investigations where no contamination is expected but soil quality must be checked, and on investigations carried out in advance of reuse or disposal of excavated soils. It describes the collection of information necessary for risk assessment and for development of remedial action plans, while not prescribing the risk-assessment or remediation decisions themselves.

General information

• Status: Published (International Standard, confirmed).
• Publication date: October 2018 (edition 1, published 2018-10 / 15 October 2018 in many catalogs).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 13.080.05 (Examination of soils in general).
• Edition / version: Edition 1 (2018).
• Number of pages: 32 pages (ISO published version).

Scope

Applies to the design and execution of site investigations to characterise soil quality at locations where contamination is suspected, known, or where information is required to manage the reuse or disposal of excavated soil. It supports collection of data needed for risk assessment and development of remedial action plans but does not provide guidance on conducting the risk assessment or on selecting/removing remediation options.

Key topics and requirements

• Staged approach to site investigation: desk study, reconnaissance and intrusive investigation planning.
• Design of sampling strategies appropriate to investigation objectives and site conditions.
• Guidance on sample types and representative sampling for chemical and related analyses.
• Requirements for documentation, traceability and reporting of sampling activities and results (including chain-of-custody practices as part of good practice).
• Health, safety and environmental precautions during intrusive investigations and sampling.
• Use of investigation data to provide information for risk assessment and remedial planning (standard itself does not determine remediation decisions).

Typical use and users

Used by environmental consultants, site investigation teams, contaminated‑land specialists, regulatory agencies, laboratories receiving field samples, developers and project managers who need to plan or interpret soil investigations at potentially contaminated sites.

Related standards

Part of the ISO 18400 series on soil sampling. Other related parts include ISO 18400‑202 (Preliminary investigations), ISO 18400‑104 (Strategies) and ISO 18400‑206 (collection, handling and storage for microbiological assessment). ISO 18400‑203 replaces earlier national/ISO guidance such as ISO 10381‑5:2005 for this subject area.

Keywords

soil quality, sampling, contaminated sites, site investigation, environmental forensics, risk assessment, sample handling, chain of custody, remedial planning, ISO 18400

FAQ

Q: What is this standard?

A: ISO 18400-203:2018 is an ISO International Standard that gives guidance on investigating potentially contaminated sites for the purposes of characterising soil quality and collecting data needed for risk assessment and remedial planning.

Q: What does it cover?

A: It covers the planning and execution of site investigations (including desk study, reconnaissance and intrusive sampling), sampling strategy design, field sampling principles, sample handling and documentation needed to produce reliable data for risk assessment and disposal/reuse decisions. It does not give instructions on how to perform the subsequent risk assessment or choose remedial actions.

Q: Who typically uses it?

A: Environmental consultants, site investigators, regulators, remediation project teams, analytical laboratories and developers engaged in brownfield redevelopment or soil management decisions.

Q: Is it current or superseded?

A: The 2018 edition is published and has been reviewed and confirmed; it replaced ISO 10381‑5:2005 for this subject area. The ISO catalogue shows the 2018 version as the current confirmed edition.

Q: Is it part of a series?

A: Yes — it is part of the ISO 18400 series on soil sampling (multiple parts address strategies, preliminary investigations, sample handling and specific sampling topics) and is intended to be used alongside other relevant ISO soil-quality standards and national/regulatory guidance.

Q: What are the key keywords?

A: Soil sampling, contaminated land, site investigation, sampling strategy, sample handling, chain of custody, environmental assessment, remediation planning, ISO 18400.