Advanced Water Purification Process

The advantages of reuse in California come at a time when our state is facing an unprecedented drought and - locally, the Soquel Creek Water District must obtain a supplemental water supply to protect the local groundwater supply from seawater intrusion.

Optimal reuse of local water resources is a secure, steady, and sustainable method of meeting those challenges. By applying the best technology, it is possible to achieve water supplies that are comparable in safety and purity to natural sources anywhere. For example, a multi-barrier system, using several stages of removal and treatment, typically ensures the highest water quality.

Purification Facilities Are Being Used Around the World

The Soquel Creek Water District is not alone in looking at ways to sustainably improve their water supplies by leveraging their wastewater resources. This concept and these purification processes are in use around the world, including several decades of indirect potable reuse in Southern California.  View the locations in California on this WaterReuse map (.pdf download)

The global connections map at Water Reuse for Drinking / Around the World spotlights some of the communities actively using Advanced Water Purification processes. The map is made available through the WateReuse Research Foundation.

What is the Advanced Water Purification Process?

Advanced Water Purification produces high-quality drinking water using the most advanced treatment processes available. Though technologies can vary, many systems use water purification that includes three processes: microfiltration, reverse osmosis, and ultraviolet light/advanced oxidation. To learn more, click here

Frequently Asked Questions and Documents/Downloads

  • Soquel Creek Water District maintains a Frequently Asked Questions (FAQs) on reuse and advanced water purification.  Click HERE
  • Documents and Downloads. Click HERE


The Science of Advanced Water Purification (AWP) and Contaminants of Emerging Concern (CECs)

On Tuesday, October 20, 2015, the Soquel Creek Water District Board of Directors were presented with a technical memo on CECs by Andy Salveson of Carollo Engineers.  The board had requested to see all current available data on CECs as well as a literature review of both AWP technology and the product water.  The staff memo, technical memo, Powerpoint presentation, and video of Mr. Salveson's presentation can be accessed below.