A PWS is responsible for providing:

A public water system (PWS) plays a crucial role in ensuring that communities have access to safe and reliable water. The responsibilities of a PWS encompass various aspects that are vital for public health and satisfaction.

Providing potable water means ensuring that the water supplied meets safety and health standards for consumption, which is fundamental to preventing waterborne diseases. Adequate water pressure is also an important responsibility, as it ensures that water can effectively reach all consumers, especially in taller buildings and areas furthest from the water source. Additionally, having an adequate quantity of water available at all times is essential to meet the diverse needs of the community, including domestic use, fire protection, and other emergency situations.

Thus, the comprehensive responsibilities of a PWS include ensuring the water is safe to drink, maintaining sufficient pressure, and providing enough water to meet the community's needs, which collectively makes the correct response encapsulate all these critical elements.