Big Basin St PK WWTF - Advanced Wastewater Treatment in Santa Cruz County, California

Big Basin St PK WWTF is an advanced wastewater treatment facility located in Santa Cruz County, California, within the United States. The plant serves a small population of 855 residents, reflecting its role in a rural or park setting. Its location near Big Basin Way places it in a forested, ecologically sensitive area. The plant employs advanced treatment processes, which go beyond secondary treatment to remove nutrients and other pollutants. With a designed capacity of 340.69 units and a current discharge volume of 75.71 units, the facility operates well below its capacity, indicating room for future growth or seasonal demand. As a US plant, it operates under the Clean Water Act, with NPDES permits issued by the California State Water Resources Control Board, ensuring compliance with strict discharge standards. The treated effluent is discharged into local waterways that ultimately drain to the Pacific Ocean. The plant's proximity to the coast (within 10 km) means its discharge can affect coastal water quality and marine ecosystems. Advanced treatment helps protect sensitive habitats, including those supporting salmon and other aquatic species in the region.

The plant discharges into streams that flow through the Santa Cruz Mountains and eventually reach the Pacific Ocean. This coastal watershed supports diverse aquatic life, including steelhead trout and coho salmon. Advanced treatment reduces nutrient loading, protecting downstream estuaries and nearshore marine environments from eutrophication and algal blooms.