SAREPTA LAGOON Wastewater Treatment Plant, Webster Parish, Louisiana

SAREPTA LAGOON is a municipal wastewater treatment facility located in Webster Parish, Louisiana, serving a population of approximately 886 residents. The plant operates as a lagoon-based secondary treatment system, a common design for small communities in the region. The plant has a designed capacity of 329.33 volume units and a daily discharge volume of 264.98 volume units, indicating moderate utilization. As a secondary treatment facility, it meets the minimum federal standard under the US Clean Water Act for municipal wastewater treatment, which requires removal of biodegradable organics and suspended solids. The treated effluent is discharged to local surface waters that ultimately drain into the Red River basin, a major tributary of the Mississippi River. This watershed supports diverse aquatic ecosystems and provides drinking water for downstream communities. The plant's location inland, more than 50 km from the Gulf Coast, reduces direct marine impact but requires careful management to protect freshwater resources.

The plant discharges into local streams that flow into the Red River, which joins the Mississippi River before reaching the Gulf of Mexico. This inland watershed supports freshwater fisheries and provides habitat for migratory waterfowl. The secondary treatment process helps reduce nutrient loading, which is important for preventing eutrophication in downstream water bodies.