Lytle Creek WWTF - Secondary Wastewater Treatment Plant in Lytle Creek, California

Lytle Creek WWTF is a municipal wastewater treatment facility located in Lytle Creek, San Bernardino County, California. The plant serves a small population of approximately 1,070 residents, reflecting its role in a rural community within the San Gabriel Mountains foothills. The facility provides secondary treatment, which is the standard level required by the U.S. Clean Water Act for municipal plants. With a designed capacity of 605.66 acre-feet per year and an actual discharge volume of 340.69 acre-feet, the plant operates below its capacity, indicating room for future growth or seasonal variability. The treated effluent is discharged into the local watershed, which drains into the Santa Ana River system and ultimately reaches the Pacific Ocean. The plant's inland location and secondary treatment help protect downstream water quality in a region prone to drought and wildfire impacts.

The plant discharges into the Lytle Creek watershed, a tributary of the Santa Ana River. The Santa Ana River flows through Southern California to the Pacific Ocean at Huntington Beach. This watershed supports diverse aquatic life and provides critical water resources for the region. The plant's secondary treatment helps reduce nutrient and pathogen loads, protecting downstream ecosystems in a semi-arid climate where water quality is especially important.