The January sewer-pipe collapse that sent hundreds of millions of gallons of waste into the Potomac River has renewed worries about a broader, long-running problem: sewer overflows caused by failing infrastructure and aging systems that can push sewage into waterways and sometimes into basements and homes. The event, which officials described as prompting emergency steps and federal support, followed the collapse of a large pipe—about as wide as a car—after which officials tracked a spike in bacteria drifting slowly past Washington for weeks, according to the Associated Press report.
The Potomac spill drew attention partly because of its scale—officials said 244 million gallons were released—and partly because it illustrated how quickly concentrated sewage pollution can become a weeks-long public health concern. The Associated Press report also said the spill highlighted an “out of sight, out of mind” pattern, noting that smaller overflows happen more routinely across the country but often fail to rise to the level of a major crisis until they do.
The report said sewer overflows are common nationwide, with tens of thousands occurring every year. Those overflows can contaminate rivers, flood streets, and—when sewage and rain flow through the same pipes—back up into homes, particularly after heavy rains. It also pointed to the way severe storms and climate change can worsen conditions where the same infrastructure is handling both sewage and stormwater.
In Maryland, the Associated Press focused on Baltimore, where the report described hundreds of sewage overflows in recent years, often tied to broken pipes, tree roots, and storms. The piece said Baltimore’s system is more than a century old, with parts of the pipe network only mapped in recent decades, and with aging conditions that can let rain enter and worsen backups that surge through maintenance hole covers and drain into city waterways and basements.
The report included testimony from residents about living through backups. Teddy Bloomquist, who said a neighbor’s message alerted him to flooding concerns, described cloudy brown water with chunks of human waste coming up from a shower drain in his Baltimore row house, and said it was the third sewage backup that winter. “We’re taking buckets and it turns out every time someone’s flushing their toilet, it’s coming up. It’s just coming so fast,” Bloomquist said, according to the Associated Press report.
Baltimore residents described the damage and cleanup costs that follow. The report said one neighbor heaved sewage out of a tub and toilet, leaving bits of toilet paper frozen into snow in a backyard, and faced thousands of dollars in repairs including replacing a bathroom floor. Another resident said she used a wet vac to suck up roughly 120 gallons of sewage. The city said it has offered cleanup assistance of up to $5,000 after certain storms, while activists argued more is needed and the program is governed by eligibility criteria, according to the report.
The Associated Press report said Baltimore has spent nearly $2 billion over more than two decades under a consent decree with federal and state regulators. It said the work included installing new water mains, closing off outlets where sewage overflowed easily, and stopping sewer bottlenecks from forming in pipes that feed a treatment plant. The city’s Department of Public Works said the efforts are reducing overflows, though the remaining work takes time and must be balanced with cost, and the city has proposed extending a deadline to complete necessary work to 2046, the report said.
The reporting also tied the local problem to nationwide enforcement and financing. The Associated Press analysis cited in the report said at least 18.7 million people are served by one of roughly 1,000 utilities in serious violation of pollution limits, and that at least 2.7 million live with systems that violated federal clean water rules continually over the last three years. The report said Maryland’s progress is known in part because it publicly reports overflows, while about half of states do not, and the Environmental Protection Agency recently extended a federal electronic reporting deadline—from 2025 to 2028—for states.
The Associated Press report also said federal financing is a central question as overhauls are expected to take decades. It cited an EPA estimate of at least $630 billion needed over the next two decades for flooding and water-quality needs, and said the 2021 infrastructure law added billions for water, with certain state loan funding arriving on a timeline that could narrow in the future. It also described a political fight over funding priorities, including congressional rejection of proposed cuts to some programs that help states access funds for local projects, and described cancellations of smaller grants tied to septic systems and assistance centers.
In the Potomac case, the report said the spill prompted emergency actions and federal assistance, with officials tracking bacteria drifting past Washington. It also said experts expected more incidents like the Potomac spill because communities often cannot afford upgrades needed to prevent sewer failures. “We’re going to see probably more incidents like we saw with the Potomac sewage spill,” Becky Hammer, a senior attorney with the Natural Resources Defense Council, said in the report.