DC Water part of Water Research Foundation Team Awarded $1 million Grant by EPA for Exciting New Wastewater Innovation

October 19, 2020

DC Water announced today that it is partnering with Water Research Foundation, Hampton Roads Sanitation District and several universities on groundbreaking new research that will save customers money and could improve water quality.

The goal is improved wastewater treatment and DC Water’s concept for improving the technology has the potential to save millions for cities around the world, said Chief Executive Officer and General Manager David L. Gadis.

“Our goal is to reduce energy and chemical use and save our customers money while using innovative technology to improve the environment,” explained Mr. Gadis, while praising the partnership with Water Research Foundation, Hampton Roads Sanitation District, George Washington University, Northwestern University and Columbia University.

The U.S. Environmental Protection Agency awarded the collaboration team its ‘Science to Achieve Results grant’ with a three-year timeframe for achieving results. At DC Water, the project is led by Haydee De Clippeleir, the research program manager and Christine deBarbadillo, the director of clean water quality and technology.

deBarbadillo said the Authority has worked closely with all members of this collaboration team for many years exploring solutions and upgrades to existing wastewater treatment processes. Removing nitrogen is a critical element in DC Water’s requirement to clean wastewater to the highest possible level before discharging it back into the Potomac River, where it leads to the Bay.

Discharge of excess nitrogen and phosphorus can lead to algal blooms in surface waters. When that happens, the health of marine life, from fish to crabs to dolphins, is jeopardized.

The typical treatment methods used at water resource recovery facilities to eliminate nitrogen rely on addition of readily degradable organic chemicals such as methanol as well as consuming a tremendous amount of electricity.

“We are using a different pathway into the nitrogen cycle to more efficiently remove nitrogen from wastewater and reduce energy and chemical costs,” deBarbadillo said.

Latest News

photo of worker going into downstream cleaning pit
  • Work is progressing to meet the mid-March target to return the flow to the Potomac Interceptor, as we reach 31 days with no overflows reaching the Potomac River.
  • The geopolymer applied to the upstream ...
Workers putting down rye and matting for soil stabilization
  • More than one month after the last overflow into the Potomac River, DC Water is preparing to return flow in the coming days to the Potomac Interceptor and meet the mid-March target to complete the ...
Tree and debris removal for environmental rehabilitation

Work is nearly complete on the downstream section of the Potomac Interceptor to reinforce the pipeline with geopolymer. The concrete-like material will strengthen and restore the structural integrity of the pipe. Completion of the geopolymer lining downstream is one of the final steps to restore flow to the interceptor and finish the emergency repair.

This comes one month since the last overflow reached the Potomac River.

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April 24, 2023

Monday 9:00 AM

Announcement

Map of lane closure
Traffic Advisory: Rock Creek and Potomac Parkway NW Lane Closure Beginning Jan 19

Beginning on or about January 19, 2026, weather permitting, DC Water will implement a temporary lane closure on Rock Creek and Potomac Parkway NW b

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March 11, 2026
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