This guideline is for those who plan and put in place soil treatment technologies for per- and poly-fluorinated alkyl substances (PFAS). It supports the use of innovative PFAS soil treatment technologies. It provides:

• guidance on assessing the feasibility of PFAS soil treatment technologies
• a framework to confirm the effectiveness of PFAS soil treatment technologies.

The guideline applies to:

• treatment conducted for a specific site
• temporary treatment facilities
• permanent treatment facilities.

It applies to a range of non-destructive and destructive soil treatment techniques.

The guideline identifies best practice approaches about how to:

• plan for PFAS soil treatment
• conduct treatability studies
• validate and verify full-scale treatment.

The ‘state of knowledge’ relevant to PFAS soil treatment is evolving. When using this guideline, also consider relevant advances since its publication.