IWA Publishing

Table 1

Water security evaluation standards

Water security level	Unsafe	Relatively unsafe	Generally safe	Relatively safe	Safe
Level threshold	[0,0.2)	[0.2,0.4)	[0.4,0.6)	[0.6,0.8)	[0.8,1.0]

Water security level	Unsafe	Relatively unsafe	Generally safe	Relatively safe	Safe
Level threshold	[0,0.2)	[0.2,0.4)	[0.4,0.6)	[0.6,0.8)	[0.8,1.0]