What are the 3 strategies which local municipality is implementing in addressing the issues of lack of clean water?

Local municipalities implement strategies such as

1. Water salination, where they clean used water with chlorine to make it free of bacteria, to be reused in the water system.
2. Encouraging responsible usage of water by raising awareness of having shorter showers, and also shutting off public water fountains etc.
3. Monitoring leakages in the water system, by installing smart software to detect leaks, local municipalities can track water