DC seeks federal reimbursement as Potomac sewer collapse repair costs near $20 million
(UI) — District officials say emergency crews continue working around the clock to repair the failed Potomac Interceptor sewer line that released millions of gallons of wastewater into the Potomac River, as reported by WJLA.
The rupture triggered a major sewage discharge and prompted an extensive containment and repair operation along the river corridor. DC Water confirmed that response and mitigation efforts have already cost approximately $20 million.
Crews remain at the site 24/7 as they stabilize the damaged pipe and manage wastewater flows to limit additional environmental impact. Officials have not yet determined what caused the pipeline failure or when the root cause will be identified.
Mayor Muriel Bowser has formally requested full federal reimbursement for the response costs, seeking 100% coverage. She said the federal government should play a larger role in preventing similar infrastructure breakdowns.
According to WJLA, DC Water is continuing containment measures near the Clara Barton Parkway area while coordinating with Maryland officials and monitoring river conditions. A public health advisory tied to elevated bacteria levels remains in effect, with lifting anticipated in early March, though officials cautioned that upcoming storm activity could worsen runoff conditions.
The Potomac Interceptor conveys wastewater to the Blue Plains Advanced Wastewater Treatment Plant, and the collapse underscores the vulnerability of aging underground sewer infrastructure serving the region.
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