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Decentralized Urban Wastewater Treatment

Redefines urban wastewater by decentralizing treatment into individual buildings

December 2019
Gallery Decentralized Urban Wastewater Treatment 1
Gallery Decentralized Urban Wastewater Treatment 1


Wastewater treatment and resource recovery produces carbon-rich soil amendments and reusable water.

Epic's on-site solids recovery and treatment system diverts wastewater organics from the municipal sewer, easing the load on utilities and saving buildings money. The solution redefines urban wastewater by decentralizing treatment into buildings. This wastewater treatment system collects and processes all of a building's wastewater, recovering the organic solids and converting them into high quality soil amendments that can be used to grow crops, enhance gardens, and beautify green spaces. The separated water, with the solids now removed, can be easily treated and reused onsite for undrinkable applications, including toilet flushing, irrigation, and cooling towers. By diverting wastewater organics from the municipal sewer system and easing the load on utilities, it reduces sewer connection fees and ongoing wastewater rates for building owners and developers. The goal is to keep up with growing cities by (1) decentralizing treatment and (2) turning the “waste” in wastewater into valuable commodities.

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Label Date December 4, 2019
From United States
Maturity stage Prototype testing in the real world

Implementation Stories

Decentralized Urban Wastewater Treatment by Epic Cleantec
Implemented by Related California in San Francisco (United States) in 2021

Related California, one of the largest real estate developers in the United States, enlisted Epic Cleantec to operate a greywater reuse system for their brand-new apartment complex “Fifteen Fifty”. The water reuse Solution consists of an initial storage tank that captures greywater from the building and rainwater from the roof, an advanced filtration and biological system, and a water quality monitoring system.


Recycles 7,500 gallons of greywater per day & help save >$92,000 annually on utility costs over 10 years


The environmental benefits

  • Helps reduce a building’s water demands by 50-95% and diverts greenhouse gas emitting organics from landfill

The Financial benefits

  • Reduces a building’s sewer connection fees and ongoing wastewater costs by up to 25%

Activity Region

  • /
  • Headquarters
  • Activity

Company Profile

Epic Cleantec

Epic Cleantec is a water technology company deploying water reuse systems into the built environment.

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Headquarters San Francisco, CA 94103, USA

Networking Partner


Waterpreneurs is a global “for-impact organisation”, supporting the scaling-up of impact investments financing the growth of WASH enterprises operating in developing countries, and respecting human rights. Waterpreneurs brings extensive knowledge of the water and sanitation entrepreneurial sector, impact investing and facilitation of marketplaces.

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Solutions Associated 30

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The information set out above, is solely for the purposes of information and the Solar Impulse Foundation does not provide any guarantee as to its authenticity, completeness or accuracy. This information does not constitute investment advice or a recommendation to buy into, transact or to enter into any agreement with any of the parties or persons mentioned above. Potential investors or interested parties are solely responsible for their investment or business decisions and for performing any due diligence required by the circumstances. The innovator Epic Cleantec has asserted ownership of the intellectual property rights for images, videos, and content showcased above, affirming full and unrestricted usage rights, and has provided explicit permission for the Solar Impulse Foundation to publish such information designated as "public" in the application form.