Recognition highlights DC Water’s commitment to environmental stewardship during Earth Month
DC Water has been honored with the “Green Bond of the Year – US Muni Bond” Award by Environmental Finance, a leading industry publication. This achievement celebrates DC Water’s leadership in sustainability and its dedication to responsible municipal financing.
DC Water issues the following statement in response to the complaints filed by the Maryland Office of the Attorney General and the Department of Justice on behalf of the U.S. Environmental Protection Agency regarding the Potomac Interceptor sewer overflow into the Potomac River that occurred on January 19, 2026:
DC Water is fully committed to the long-term rehabilitation of the Potomac Interceptor ...
DC Water has expanded its water quality testing initiative over a three-week period at high-use recreational areas along the Potomac River. This proactive measure is intended to complement the daily water quality sampling already underway following the sewer overflow caused by the Potomac Interceptor collapse that occurred in January and has since been repaired. The expanded testing comes in ...
DC Water and its contractor have removed all the soil down to the clay liner between locks 12 and 13, marking 50% completion of the canal clean-up. Soil removal between Locks 13 and 14 was completed earlier this month. Meanwhile, clean-up efforts continue between locks 10 and 12, with sludge removal complete and soil removal now underway.
First turn of cutterhead signals the start of excavation for the Potomac River Tunnel Project
In a defining moment for one of the District’s largest infrastructure investments, DC Water has marked its next major milestone in the Potomac River Tunnel Project. The first tunnel boring machine, Mary, has launched her northbound journey breaking through the soil to signal the start of excavation.
DC Water has completed soil removal, utilizing excavators and manual digging, to expose the clay lining for the C & O Canal between locks 13 and 14. This is the final step in the clean-up process before work can begin to rebuild the canal. Work continues on the remaining lock sections, with soil removal nearing completion between locks 12 and 13.
Work is progressing on the clean-up for the C & O Canal which was used as a bypass while the Potomac Interceptor was repaired. Workers are focused on removing sludge between locks 11 and 12. Soil removal is also nearly complete between locks 12 and 14, reaching the canal's clay liner. Workers are now manually removing additional materials in some areas.
DC Water and its contractor have made significant progress on soil removal, reaching the clay liner between locks 13 and 14 of the C & O Canal, which was used as a bypass for wastewater during the Potomac Interceptor repairs.
Work continues to remove sludge between locks 10 and 13, which is expected to be completed by mid- to late-April. The soil will then be removed down to the clay liner as the ...
Today, DC Water and its contractors began removing contaminated soil between locks 13 and 14 in the C & O Canal, which was used as a temporary bypass during the Potomac Interceptor repair effort. Clean-up efforts are ongoing at Lock 10 with work to remove sludge now getting underway between locks 11 and 13.
Series 2026 Bond Transaction Delivers Significant Long-Term Cost Savings
DC Water has closed on a refinancing deal for its Series 2026 bonds that will save customers millions of dollars and keep rates affordable across the District. The refinancing transaction, which closed this month, delivers approximately $54 million in budget savings over the next twenty years, directly benefiting DC ...
