Sanitary Sewer & Stormwater Infrastructure Services in Sebastian

Sebastian is the largest city in northern Indian River County, located on the mainland along the Indian River Lagoon. The St. Sebastian River forms part of its northern edge, and Sebastian Inlet State Park lies a short drive north on the barrier island. Much of the city was platted by the General Development Corporation, giving it a large grid of residential lots and drainage ditches.

Water and sanitary sewer service in Sebastian is provided by Indian River County Utilities, while the City of Sebastian manages streets and its stormwater system. Many homes in the city were built on septic systems, and septic to sewer conversion has been a recurring issue tied to Indian River Lagoon water quality.

Sebastian relies on an extensive network of swales, ditches, and culverts under residential streets, much of it carrying water toward the lagoon and the St. Sebastian River. Those structures can fill with sediment and vegetation, and older corrugated metal culverts are prone to corrosion. Riverfront commercial areas along U.S. 1 and Indian River Drive also include private drainage and grease assets.

In Sebastian, Southeast Services is most relevant for culvert and swale drain cleaning, CCTV inspection of storm pipe under city streets, trenchless rehabilitation of corroded culverts without full road closures, and vacuum truck service for lift stations and grease interceptors. Vacuum excavation supports safe utility locates in a dense residential grid.

The city's riverfront district along Indian River Drive includes restaurants, marinas, and small commercial buildings whose drain lines and grease interceptors need routine service to keep working properly.