What are the two main types of septic systems commonly used?

The correct answer identifies the two main types of septic systems used in wastewater management: conventional systems and alternative systems. Conventional systems typically consist of a septic tank and a drain field, where solid waste settles at the bottom of the tank and liquid effluent is absorbed into the soil. These systems are commonly used in areas with suitable soil conditions and sufficient land space.

Alternative systems, on the other hand, are designed to address specific site limitations or environmental concerns. They may use innovative technology or processes, such as aerobic treatment, to treat wastewater more effectively, especially in areas with poor drainage or where soil conditions do not allow for the installation of conventional systems.

This distinction between conventional and alternative systems is crucial for understanding how septic systems are tailored to meet different environmental settings and regulatory requirements.