To contact us:

Phone: 310-241-6565
Fax: 310-241-6566
E-mail: info@epd-net.com

Natural Resources Defense Council Santa Monica Office

 

1314 2^nd Street, Santa Monica, California

The Natural Resources Defense Council Santa Monica office is a LEED-Platinum certified “green” building that has focused heavily on water conservation.  EPD designed a system for this project that reuses storm water and gray water for toilet flushing and landscape irrigation.  This  water reuse system, in conjunction with waterless urinals, dual flush toilets, and high efficiency lavatories, reduces the building’s total water use by more than 50 percent. 

 

EPD’s water reuse system collects gray water from sinks and showers and storm water from the roof; treats, filters, and disinfects the water; then reuses it for toilet flushing and highly efficient subsurface irrigation.  The treatment process involves

 

      settling, aerobic pretreatment and ozone disinfection.

      multi-stage filtration including reverse osmosis in an Equaris Infinity System.

      final ozone and ultraviolet light disinfection

 

The resulting product meets California Title 22 unrestricted non-potable reuse standards.  The entire system is free of PVC, a material whose manufacture and disposal has been linked to health risks and environmental degradation.   The system maximizes the efficiency of its reverse osmosis filter –which can typically reject 3 gallons of water for every gallon produced -- by recycling the concentrate back into the system and rejecting it only when the water exceeds a high threshold.

 

 

NRDC

 

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