What is an On-Site Sewage Facility (OSSF)?

An On-Site Sewage Facility (OSSF) refers to a wastewater treatment system designed to treat sewage right at the location where it is generated, rather than sending it to a centralized treatment facility. This means that all processes associated with the treatment, including collection, treatment, and disposal, occur on the property where the sewage is produced.

OSSFs are essential for areas that are not served by municipal sewer systems, providing a crucial service in maintaining sanitation and protecting public health. These systems can include various types of technologies, such as septic tanks, aerobic treatment units, or constructed wetlands, tailored to the specific needs of the site and its soil conditions.

In contrast, centralized sewage treatment plants involve transporting sewage from various locations to a central facility, which does not align with the definition of an OSSF. The option suggesting transportation of sewage focuses on a different aspect of wastewater management. Additionally, while greywater is part of wastewater, an OSSF typically handles both blackwater (from toilets) and greywater (from sinks, showers, and laundry), thus treating all types of household wastewater rather than just greywater alone.