Rehoboth Beach STP - Sussex County, Delaware Wastewater Treatment Plant

Rehoboth Beach STP is a municipal wastewater treatment plant located in Sussex County, Delaware, serving a population of approximately 63,281. The facility is situated in the coastal region of the state, near the Atlantic Ocean and the Delaware Bay. As a significant treatment plant for the area, it manages wastewater from residential and commercial sources in the Rehoboth Beach community. The plant operates under the regulatory framework of the US Clean Water Act, which requires NPDES permits for all discharges. For a facility of this scale serving over 60,000 people, secondary treatment is the minimum standard, with potential for additional nutrient removal to protect sensitive coastal waters. The designed capacity is 1.00 million gallons per day, indicating the plant's infrastructure is sized to handle the community's wastewater flows. The treated effluent is discharged into local waterways that drain into the Delaware Bay and ultimately the Atlantic Ocean. The region's coastal ecology includes estuarine habitats that support diverse aquatic life, including fish, crabs, and migratory birds. Proper treatment is essential to prevent nutrient pollution and protect downstream ecosystems.

The plant's discharge enters the Delaware Bay watershed, a major estuary that flows into the Atlantic Ocean. This coastal environment supports critical habitats for fish, shellfish, and migratory birds. Nutrient loading from wastewater can contribute to algal blooms and hypoxia, making effective treatment vital for maintaining water quality in the bay and coastal waters.