Salesforce Tower

A towering commercial office building with a 5.4-acre park

Salesforce Tower is a 61-story skyscraper located in San Francisco. With more than 1.4 million square feet of office space, this towering project is home to the largest onsite blackwater system in a commercial high-rise in the U.S., designed to recycle up to 30,000 gallons of wastewater per day. Water from the building’s rooftop rainwater collection, cooling towers, showers, sinks, toilets and urinals is collected and treated onsite, then circulated for reuse in the HVAC system and for all toilet flushing.

The building reuses 7.8 million gallons of per year—the equivalent of 60 million bottles of water—reducing the building’s freshwater consumption by up to 76%. Epic Cleantec was brought in to assume control of the daily operations and maintenance of the system, including overseeing final startup and commissioning, for this LEED Core and Shell Certified Platinum building.

Location: San Francisco, CA
Size: 1,400,000 square feet
Stories: 61
Collection Sources: Blackwater, rainwater, condensate
System Capacity: 30,000 gal/day
End Use: Toilet flushing, cooling towers

Project Partners

10,950,000gallons/year Total recycled non-potable water

71%annual reuse Percent of total non-potable demand

$395,000 yearly savings Est. annual utility savings

Salesforce Tower is owned and operated by BXP, the largest publicly traded developer, owner, and manager of workplace buildings in the United States. The onsite system itself is owned by Salesforce, the building’s largest tenant. This has created a unique partnership in which both the building owner and its tenant have come together to set a new standard for a positive and sustainable impact in the local community.

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