In a scenario where total storage capacity is required, how much storage is necessary per connection if elevated storage is included?

The correct choice of 200 gallons per connection reflects the recommended storage capacity needed to ensure a reliable water supply for average daily consumption, fire protection, and system pressure. When considering elevated storage, it is crucial to account for not only the demand for regular water usage but also contingency storage for emergencies and peak demands.

Elevated storage typically allows for added benefits such as maintaining adequate pressure within the distribution system and providing additional capacity to meet fluctuating demand. The 200-gallon figure is aligned with industry standards and best practices, which suggest that for each connection, this amount helps ensure that both daily consumption and emergency needs are adequately met, especially in areas with variable demand and potential service interruptions.

The other values might not provide a sufficient buffer for fluctuations in demand or adequate pressure maintenance, which could lead to service issues or inadequate supply during peak periods. Consequently, 200 gallons per connection strikes a balance between adequate storage and practical management of system resources.