Table 3. Summary of intervention cases with respect to the threshold factor.

Case	Condition	Description	Required actions	Subcases	Additional conditions
No intervention	CF ≤ 0	The tailing deposit does not require intervention, regardless of the soil composition.	None	None	None
Conditional intervention	0 < CF < 100	The tailing deposit may or may not require intervention; this depends on the soil composition.	Determine the clay percentage xA.	Intervention not required, it is not necessary to intervene the soil because it is under the intervention value specified for this type of soil.	xA > CF
				Intervention required, the soil must be intervened because it exceeds or equals the intervention value specified for this type of soil.	xA ≤ CF
Unconditional intervention	CF ≥ 100	The tailing deposit requires intervention, regardless of the soil composition.	Prepare an intervention plan for the site.	None	None

Note:

Each row describes a different case depending on the value of the threshold factor.