01
Areas requiring water
Areas that need water without water facilities

02
Limestone strata area
Areas where it is difficult to get drinking water due to the influx of Calcareous.

03
Areas difficult to monitor
Areas where drinking water sources are difficult to monitor

04
Sanitary management nonconformity area
Areas where hygiene is difficult to manage, such as rural or simple waterworks

05
Under-supply area
Areas where supply is insufficient compared to drinking water demand

06
Supply Chain Expansion Business Area
Drinking water supply chain extension business area