Water Quality Related to Surface Water

The following Water Quality Reports are for informational purposes. We often get inquires related to the water quality of surface water from the City of Santa Cruz, our groundwater, and purified recycled water. The City's surface water supplies and purified recycled water are two options that the District is considering to diversify our long-term water supply portfolio.

Water Quality Reports related to Surface Water Transfer Option

City of Santa Cruz - Water Quality Reports

• Constituents of Emerging Concern (CEC) Study of Surface Water (August 2016)
•  San Lorenzo Valley Water District, San Lorenzo River and North Coast Watersheds Sanitary Survey Update (February 2018)
• Consumer Confidence Report (2018)
• Graham Hill Water Treatment Plant Source Water Quality Monitoring Study (February 2019)

City of Santa Cruz and Soquel Creek Water District's Pilot Surface Water Transfer Study

• Bench-Scale Testing Technical Memorandum, Water Quality Assessment (August 2018)

County of Santa Cruz 

• Frequently Asked Questions about Septic Systems (Question 1 - Why are septic regulations in San Lorenzo Valley so stringent?)

Soquel Creek Water District Water Quality Reports

• Technical Memo on Constituents of Emerging Concern (CEC) Removal through Advanced Treatment and Comparison with Surface Water and Groundwater (PDF) for Soquel Creek Water District (October 2017)