What defines a small onsite wastewater system?

A small onsite wastewater system is specifically defined by its capacity to handle a limited volume of wastewater. In this context, a system that generates less than 1500 gallons of wastewater per day fits this definition, as it falls within the regulatory parameters that categorize it as "small." This classification is critical for ensuring that systems are properly designed, installed, and maintained to meet health and environmental standards.

The criteria of generating under 1500 gallons daily helps to differentiate these smaller systems from larger treatment facilities, which may require different management practices and regulatory oversight. In South Carolina, this distinction helps local health departments and regulatory bodies to develop appropriate guidelines for permitting, operation, and monitoring.

Other categories, such as systems serving multiple residences or those designed specifically for non-residential use, refer to different aspects or classifications of wastewater systems and do not specifically address the volume of wastewater they can handle. Monitoring by a commercial entity pertains more to management or service agreements rather than the technical definitions of system size. Therefore, understanding the significance of wastewater volume helps clarify what constitutes a small onsite wastewater system.