Aquifer Vulnerability: Its Protection and Management—A Case Study in Pangkalpinang City, Indonesia

Table 2

Relationship of aquifer vulnerability index to hydraulic resistance (from [11]).

Hydraulic resistance ()	Log	Aquifer vulnerability index (AVI)
0-10	<1	Extremely high
10-100	1–2	High
100–1000	2–3	Moderate
1000–10,000	3–4	Low
>10,000	>4	Extremely low