Quincy Treatment Plant - Plumas County, California Wastewater Facility

The Quincy Treatment Plant is a municipal wastewater facility located in Plumas County, California, serving a small community of about 3,688 people. The plant is situated near Spanish Creek Road and operates under the regulatory framework of the United States Clean Water Act, which requires National Pollutant Discharge Elimination System (NPDES) permits for all wastewater discharges. As a small-scale facility, it is subject to state-level oversight by the California State Water Resources Control Board. Under the Clean Water Act, treatment plants serving populations of this size are typically required to provide secondary treatment as a minimum standard. The plant's discharge is regulated through an NPDES permit that sets effluent limits to protect water quality. The facility must comply with federal and state regulations to ensure adequate treatment before discharge. The treated effluent from the Quincy Treatment Plant is discharged into the local watershed, which flows into Spanish Creek and eventually reaches the Feather River. The Feather River is a major tributary of the Sacramento River, which drains into the Sacramento-San Joaquin Delta and ultimately the Pacific Ocean. The plant plays a key role in protecting the water quality of these downstream water bodies, which support diverse aquatic life and provide habitat for species such as salmon and steelhead trout.

The Quincy Treatment Plant discharges into the Spanish Creek watershed, which flows into the Feather River, a major tributary of the Sacramento River. The Sacramento River system drains into the Sacramento-San Joaquin Delta and then to the Pacific Ocean. This watershed supports important aquatic ecosystems, including spawning grounds for Chinook salmon and steelhead trout. The plant's operations are critical for maintaining water quality in these downstream environments, which are ecologically sensitive and support diverse aquatic life.