Darien WPCP - Secondary Wastewater Treatment Plant in Darien, Georgia

Darien WPCP is a municipal wastewater treatment facility located in Darien, Georgia, United States. The plant serves a population of approximately 1,783 residents in the coastal region of McIntosh County. It operates under the regulatory framework of the US Clean Water Act, which requires secondary treatment for municipal discharges. The plant provides secondary treatment, a standard level that removes biodegradable organic matter and suspended solids. With a designed capacity of 2,271.24 thousand gallons per day and an actual discharge volume of 757.08 thousand gallons per day, the facility operates well below its capacity, indicating room for future growth. The plant's discharge is regulated under the National Pollutant Discharge Elimination System (NPDES) permit program, administered by the Georgia Environmental Protection Division. The treated effluent from Darien WPCP is discharged into local waterways that ultimately drain to the Atlantic Ocean. The plant plays a key role in protecting the sensitive coastal ecosystems of Georgia, including the nearby salt marshes and estuaries that support diverse aquatic life. Its location within 50 kilometers of the coast underscores the importance of effective wastewater treatment to prevent nutrient pollution in downstream waters.

The Darien WPCP discharges into the Altamaha River basin, which flows into the Atlantic Ocean near the Georgia coast. The Altamaha River is one of the largest free-flowing rivers on the East Coast, supporting a rich diversity of fish, shellfish, and migratory birds. The plant's effluent enters a watershed that includes extensive salt marshes and tidal creeks, which are ecologically sensitive areas that require careful management of nutrient loads to prevent eutrophication and habitat degradation.