CLEGHORN WWTF - Crestline, California Wastewater Treatment Plant

CLEGHORN WWTF is a municipal wastewater treatment facility located in Crestline, California, a community in the San Bernardino Mountains. The plant serves a population of about 2,030 people, reflecting its role as a small-scale treatment system for this mountain community. The plant provides secondary treatment, which is the standard level required under the U.S. Clean Water Act for municipal wastewater. With a design capacity of 757.08 m³/day and a current discharge volume of 151.42 m³/day, the facility operates well below its capacity, indicating room for future growth or seasonal variations. The treated effluent is discharged into the local watershed, which ultimately drains into the Mojave River basin and then into the Mojave Desert. The plant plays a critical role in protecting the sensitive mountain ecosystem and downstream water quality in this arid region.

The plant discharges into the San Bernardino Mountains watershed, which feeds into the Mojave River and eventually the Mojave Desert. This arid region relies on limited surface water and groundwater, making the plant's treatment essential for protecting local aquatic habitats and downstream water resources. The area supports diverse wildlife and is an important recreational corridor.