Grayson WWTF - Galt, California Wastewater Treatment Plant

Grayson WWTF (Wastewater Treatment Facility) is located in Galt, California, a city in Sacramento County. The plant serves a small population of 802 residents, reflecting its role as a local municipal facility for a modest community. The plant provides secondary treatment, which is the standard level required by the US Clean Water Act for municipal wastewater. With a designed capacity of 378.54 cubic meters per day and an average discharge volume of 264.98 cubic meters per day, the facility operates 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 Sacramento River and then the Sacramento-San Joaquin Delta, a critical estuarine ecosystem. The Delta supports diverse aquatic life and is a key water source for California's agricultural and urban regions.

The plant's discharge enters the Sacramento River basin, flowing into the Sacramento-San Joaquin Delta, which empties into San Francisco Bay. This estuary is ecologically sensitive, supporting migratory fish species and providing habitat for numerous aquatic organisms. The Delta's water quality is vital for both ecosystem health and human uses, including drinking water and irrigation.