The cost of investments in the water networks sector in Italy:
- The 50s – 60s: 10 – 20 euros / year per capita
- The 70s: 40 euros / year per capita
Currently:
- In Italy 30 euros / year per capita
- In Germany 80 euros / year per capita
- In France 90 euros / year per capita
- In the UK 100 euros / year per person
Making an analysis on 9 ATO an economic requirement of 80 euros / year was estimated with a gap between 52 and 150 euros / year per capita, for a total of 65 billion euros in 30 years (7 times the cost of High Speed Line from Turin to Lyon).

Rates are on average
- In Italy 307 euros / year per family
- In Spain 330 euros / year per family
- In France 700 euros / year per family
- In the United Kingdom 770 euros / year per family
