ISO 24212:2024

Overview

ISO 24212:2024 - Remediation techniques applied at contaminated sites provides requirements and guidance for selecting and implementing in situ and on-site remediation techniques. The standard covers principles, main characteristics, advantages and limitations of remediation options for contaminated soil, soil gas, ambient air and groundwater, and identifies which phase or matrix (fluid or solid; e.g. groundwater, gas, NAPL) and which contaminants each technique can target. It also addresses hazards and risk management during remediation and good practice for strategy appraisal, testing and monitoring.

Key technical topics and requirements

• Remediation strategy appraisal: Good-practice steps for identifying feasible strategies, evaluating options and selecting a final remediation strategy based on site objectives and constraints.
• Selection criteria: Consideration of contaminant type, current/intended site use, and local legal, policy, socio‑economic and environmental contexts.
• Technique descriptions: Structured summaries of common approaches (examples included in the standard):
  • In situ chemical oxidation (ISCO)
  • In situ chemical reduction (ISCR)
  • Enhanced in situ bioremediation (EISB)
  • Monitored natural attenuation (MNA)
  • Incineration
  • In situ thermal remediation (ISTR)
    Each technique entry covers principle, scope/applicability, technology description, design considerations, key monitoring parameters, advantages/limitations, EHS aspects and compatible combinations.
• Hazard and risk management: Identification and controls for hazards related to contaminated media, asbestos, dust, odours, contaminated waste, equipment, unexpected finds (including UXO), ground stability, confined spaces, chemicals, manual tasks, noise and long‑term monitoring.
• Testing and validation: Emphasis on laboratory testing and pilot tests to verify effectiveness and refine design before full-scale implementation.
• Limitations and exclusions: Not exhaustive; excludes guidance for radioactive, pathogenic/infectious agents, and pyrotechnic devices (e.g. unexploded ordnance) remediation; and does not cover off‑site (ex situ) techniques established off-site.

Practical applications

ISO 24212 is designed to support:

• Option appraisal and technique selection during site investigation and remediation planning
• Design consideration and monitoring program development for on-site and in situ remediation projects
• EHS planning and risk assessment during remediation implementation Use cases include brownfield redevelopment, groundwater clean‑ups, industrial site remediation and long‑term management of contaminated land.

Who should use this standard

• Environmental consultants and remediation engineers
• Site owners and developers
• Regulatory agencies and permitting authorities
• Environmental health & safety (EHS) professionals
• Project managers overseeing contaminated site remediation

Related standards

ISO 24212 complements national guidance and other ISO standards on environmental management, site investigation and contaminated-land frameworks. It should be used alongside local regulatory requirements and technical guidance for detailed design, permitting and health‑and‑safety compliance.