Overview
L Arrowhead WWTF serves approximately 15,581 residents in Lake Arrowhead, California. The plant operates under the US Clean Water Act framework, discharging treated wastewater into the local watershed.
L Arrowhead WWTF is a municipal wastewater treatment facility located in Lake Arrowhead, California, serving a population of about 15,581. Situated in the San Bernardino Mountains, the plant is part of the region's infrastructure for managing wastewater from the Lake Arrowhead community. As a US facility, the plant operates under the Clean Water Act and is subject to National Pollutant Discharge Elimination System (NPDES) permits issued by the California State Water Resources Control Board. For a population of this size, secondary treatment is typically required, with possible additional nutrient removal to protect sensitive mountain watersheds. The plant discharges into the local watershed, which drains into the Mojave River basin and ultimately contributes to the Mojave Desert ecosystem. The receiving waters support aquatic life and are important for regional water resources, especially given the semi-arid climate of Southern California.
Environmental context
The plant's discharge enters the Lake Arrowhead watershed, which flows into the Mojave River and eventually reaches the Mojave Desert. This water body supports diverse aquatic species and is a critical resource in a water-scarce region. The downstream environment includes sensitive habitats that rely on consistent water quality, making effective treatment essential for ecological health.
Frequently asked questions
L Arrowhead WWTF is located at 111 Cedar Ridge Drive in Cedar Glen, Lake Arrowhead, San Bernardino County, California, United States.
The plant serves approximately 15,581 residents in the Lake Arrowhead community.
The plant discharges treated wastewater into the local watershed, which flows into the Mojave River basin and eventually reaches the Mojave Desert.
As a US facility, L Arrowhead WWTF operates under the Clean Water Act and is regulated by an NPDES permit issued by the California State Water Resources Control Board.
For a population of this size, secondary treatment is standard under the Clean Water Act. In sensitive mountain watersheds, additional nutrient removal may be required to protect water quality.
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