What is the required minimum lot size for a standard OSSF system?

The required minimum lot size for a standard On-Site Sewage Facility (OSSF) system is one acre. This regulation is in place to ensure that there is sufficient space for the proper installation and functioning of sewage systems while also maintaining adequate distance from potential pollution sources and drinking water supplies. One acre provides enough area to accommodate the various components of the OSSF, such as the septic tank and the drainfield, which require specific spacing and separation distances to operate effectively and reduce environmental impacts.

When considering the suitability of a lot for an OSSF, it is also essential to account for factors like soil type, topography, and proximity to waterways, which can influence the performance and safety of the sewage system. A larger lot size—such as those greater than one acre—may be beneficial in certain conditions but is not mandated as a minimum requirement. Understanding these regulations ensures that installations meet public health standards and environmental safety measures.