SEELEY CWD WWTF - Seeley, California Wastewater Treatment Plant

SEELEY CWD WWTF (Community Water District Wastewater Treatment Facility) serves the small community of Seeley in Imperial County, California. The plant provides secondary treatment for a population of 1,122, with a designed capacity of 378.54 m³/day and a similar discharge volume, indicating full utilization. As a secondary treatment facility in the United States, the plant operates under the Clean Water Act's National Pollutant Discharge Elimination System (NPDES) permit program. For small communities like Seeley, secondary treatment is the standard requirement to reduce organic matter and suspended solids before discharge. The treated effluent is discharged into local waterways that drain into the Salton Sea watershed, an ecologically sensitive inland saline lake. The plant's operations help protect the region's water quality and support the surrounding desert ecosystem.

The plant discharges into the Salton Sea watershed, a terminal saline lake in the Colorado Desert. The Salton Sea is a critical habitat for migratory birds and supports diverse aquatic life, though it faces challenges from agricultural runoff and salinity. The plant's secondary treatment helps reduce nutrient and pollutant loads to this sensitive environment.