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Update: Potomac Interceptor Repairs, February 15
Potomac Interceptor Repairs Update
February 15, 2026
No overflow events impacting surface waters have been reported in the past 24 hours. The four high-capacity bypass pumps installed this week are now fully primed and operational, increasing overall system capacity and reliability. In addition, the third flume at the downstream end of the canal near Lock 10 is now active and conveying wastewater back into the Potomac Interceptor, joining the two original flumes already in service. These measures are helping improve flow management and provide additional operational redundancy. Three additional ... Read More
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UPDATE: Potomac Interceptor Repairs, February 14
Crews have completed construction of the two new access pits to support full installation of the enhanced bypass pumping system. Three high-capacity bypass pumps have been installed and are operational, with a fourth pump expected to be activated later tonight or early Sunday ahead of the forecasted weather to help manage anticipated higher flows associated with rainfall and snowmelt.
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UPDATE: Potomac Interceptor Repairs February 13
No overflow events impacting surface waters have been reported in the past 24 hours as crews continue advancing construction of the two new access pits to support full installation of the enhanced bypass pumping system. Additional high-capacity bypass pumps are on site in advance of the forecasted weather on Sunday to help manage anticipated higher flows associated with rainfall and snowmelt.
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dc.water
16 hrs
Crews made significant progress today on the enhanced bypass system at the Potomac Interceptor. Two new access pits have been completed, and three high-capacity pumps are already installed and running. A fourth is expected to come online tonight or early Sunday. When all pumps are active, the system will be able to move up to 114 million gallons a day, providing critical redundancy as we manage higher flows from rain and snowmelt. Work also continued on the concrete bulkhead inside the damaged pipe. Once the bulkhead is in place, crews will be able to safely remove a rock obstruction within the collapsed section and begin repairs. There have been no overflow events impacting surface waters in the last 24 hours, but the potential for overflow remains until crews can remove that obstruction and restore normal flow. Details: https://www.dcwater.com/about-dc-water/media/news/update-potomac-interceptor-repairs-february-14
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