A municipal system is anything that has to do with a city or town. The day-to-day operations of a city are part of the municipal system. The water supply and other resources are also part of the municipal system, as is transportation, government workers, and townspeople.

The Romans.

Water is pumped in by the municipal water system or by your own pump and pressure tank.

In the U.S.A. most people are either on a municipal water system or they have a well.

The American Water Works Association recommend that a municipal system leak no more than 15% of the water that the system pumps. 10% is an even better goal. many systems, especially in rural water areas, can leak 50% or more of the water that they pump. Billions of gallons a year are lost to leaks in municipal water pipelines.