Sustainable Water Infrastructure Project

Santa Monica, CA

Partnering with Kiewit Infrastructure West and Arcadis, PERC Water is part of the progressive design-build team for the Sustainable Water Infrastructure Project (SWIP) in the City of Santa Monica, California. Currently, the City of Santa Monica partially relies on imported water to meet its water needs. This project allows the City to take a major step toward water independence, supporting existing programs designed to create a sustainable water supply.

The SWIP takes a forward-thinking approach to help secure the City’s water future by leveraging the use of existing City infrastructure and by linking together three new distributed water reuse elements into a single cohesive and comprehensive project to harvest, treat, and reuse non-conventional water resources. The SWIP delivers reliable advanced treated water to be injected into local groundwater basins for indirect potable reuse via aquifer recharge while meeting the non-potable reuse demands. The Advanced Water Treatment Facility (AWTF) has a capacity of 1.0 MGD, consists of headworks, biological treatment, MBR, cartridge filter, reverse osmosis, UV-AOP, chlorine disinfection, and is designed to treat a mixture of municipal wastewater and stormwater.

Specifically, this innovative project allows the City to:

  • Reduce energy use and greenhouse gas emissions associated with importing drinking water
  • Improve beach water quality at Santa Monica Bay by reducing pollution related to stormwater
  • Comply with stormwater pollution reduction regulations of the State Water Board
  • Recycle up to one million gallons per day of municipal wastewater for reuse, including for future indirect potable reuse (IPR) via aquifer recharge
  • Treat up to a 0.5 million gallons per day of stormwater and/or brackish/saline-impaired groundwater for reuse
  • Conserve more than 1,680 acre-ft (about 550 million gallons) of groundwater or imported water per year

The SWIP provides the following:

  • Reverse osmosis technology to treat brackish/saline-impaired groundwater and stormwater at the Santa Monica Urban Runoff Recycling Facility (SMURRF)
  • Sewer lift stations and a below-grade stormwater and sewer treatment facility at the Civic Center parking lot, with the ability to treat 1 million gallons of wastewater or harvested stormwater per day
  • Stormwater lift stations and a below-grade stormwater harvesting tank at the Civic Center parking lot, with a total storage capability of 1.5 million gallons

PERC Water is responsible for the start-up and commissioning activities and will operate the facility upon project completion.

Project Highlights

Industry Leading Innovation:

  • 1st Facility to combine treatment of stormwater and wastewater for groundwater recharge
  • 1st Stormwater treatment system for direct groundwater injection
  • 1st Advanced treatment facility to get pathogen credits for the MBR and cartridge filters
  • 1st Completely underground AWTF

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