On-Site Sewage System (OSSF) Design

Legacy Engineering provides comprehensive on-site sewage facility (OSSF) design services tailored to the specific conditions and regulatory requirements of each property. Our designs are developed in full compliance with applicable state, county, and municipal standards, ensuring systems are properly sized, located, and constructed for long-term performance and approval.

We evaluate site constraints such as soil conditions, lot size, groundwater considerations, setbacks, and existing or proposed development to determine the most appropriate system type. Whether required by local regulations or driven by a property’s unique characteristics, our OSSF designs are coordinated to meet permitting requirements while supporting the overall development plan.

From initial site evaluation through final design and regulatory coordination, Legacy Engineering delivers clear, compliant, and constructible sewage solutions that minimize risk, avoid costly revisions, and keep projects moving forward.