Kettleman City STP - Secondary Wastewater Treatment in Kings County, California

Kettleman City STP is a municipal wastewater treatment facility located in Kings County, California, United States. The plant serves a small community of approximately 1,528 residents, reflecting its role in managing local wastewater in a rural agricultural region. The plant provides secondary treatment, which is the standard level required by the U.S. Clean Water Act for municipal wastewater before discharge. With a designed capacity of 832.79 units and an average daily discharge of 416.40 units, the facility operates well within its capacity, indicating room for future growth or seasonal fluctuations. The treated effluent is discharged into the local watershed, which ultimately drains into the Tulare Lake Basin, a historically significant but now largely dry lakebed in California's Central Valley. The region's water resources are critical for agriculture and wildlife, and the plant's operations help protect downstream water quality in this sensitive arid environment.

The plant discharges into the Tulare Lake Basin, an endorheic basin in California's Central Valley that historically supported vast wetlands and diverse wildlife. Today, the basin is primarily agricultural, but seasonal flooding can reconnect it to the San Joaquin River system. The plant's secondary treatment helps reduce nutrient and pathogen loads, protecting local groundwater and surface water from contamination in this water-scarce region.