Which type of treatment system serves a small subdivision or condominium complex?

The correct choice is the Community (Cluster) System because it is specifically designed to serve multiple residences, such as those found in a small subdivision or condominium complex. This type of system allows for the collection, treatment, and dispersal of wastewater from several homes in a centralized location, providing a more efficient and effective waste management solution compared to individual septic systems.

Community systems can accommodate the collective wastewater flow from many units, making them suitable for larger living environments where individual septic systems would be impractical due to space constraints or regulatory considerations. They are often more cost-effective and are designed to comply with environmental regulations for managing wastewater on a larger scale.

In contrast, a single-family septic system is meant for individual homes and would not be sufficient for a community setting. A temporary holding tank is used for short-term storage of wastewater until it can be properly disposed of, but it does not provide a treatment solution for a community. A stormwater drainage system is designed to manage runoff from precipitation, not for treating wastewater.