Why You Shouldn’t Frolic in Your Native River After It Rains

Blue herons and jap coyotes are simply among the animals Mark Surabian, a Bronx River kayaker for the previous seven years, has seen whereas paddling down the waterway.

They’re a sight for sore eyes contemplating the river was an industrial waste dumping ground within the 1800’s, significantly on its southern portion.

For folks like Surabian, the Bronx River is a treasure of town and considered one of its defining waterways however there’s one fundamental challenge that spoils the enjoyable: mixed sewer overflows or CSOs.

That’s the technical time period for the roughly 454 million gallons of rainwater runoff, home sewage and industrial wastewater that discharges into the river yearly from simply three out of the 5 outfall factors alongside its southernmost half. 

Because of town’s growing old infrastructure, even simply small quantities of rain can overwhelm the sewer system, triggering a flood of filth into native waterways, the Bronx River amongst them. Those overflows carry fecal matter with contaminants and pathogens that trigger gastrointestinal points, rashes and eye infections — amongst different severe illnesses. They can even trigger algal blooms and deplete oxygen ranges, which may kill fish and different creatures residing within the water. 

“On a good day, when it’s not murky, you see the sandy bottom and the fish swimming by. It’s as pretty as any other little river,” mentioned Surabian, 63, who additionally volunteers for the Bronx River Alliance, a nonprofit group. “When the CSO’s happen, that’s the dilemma. It’s sad.”

On the river’s finest days, the state Department of Environmental Conservation nonetheless solely suggests actions that don’t embrace swimming within the water, like kayaking or fishing on the southern portion of the river under E. Tremont Ave. 

When even a average quantity of rain falls, nevertheless, Riverkeepers, an advocacy group devoted to the restoration of New York’s waterways, recommends ready a minimum of 36 hours earlier than doing something within the Bronx River. With heavier showers, the time wanted to flush the contaminants out can stretch all the best way to 72 hours. 

THE CITY visited the southern portion of the Bronx River throughout a current water advisory interval and in addition noticed cloudy waters that didn’t look inviting. But the concern of brown sludge hasn’t altogether stopped folks from swimming in it, as seen in a viral video from final month. 

Some different Bronxites are leery of the river’s cleanliness.

“It has a lot of pollution and fecal matter inside so it’s not something that you would want to go in,” says Alexandra Maruri, a virtually lifelong Bronx resident in her 50s who lives throughout the road from the river. “I wouldn’t recommend it for swimming.”   

Advocates for the river are pushing for the state DEC and its native counterpart, town Department of Environmental Protection, to do extra to guard the river from CSOs and get rid of the prospect of individuals coming into contact with uncooked sewage. 

“It interferes often with our recreational programming where we try to get folks in canoes and kayaks,” mentioned Christian Murphy, the ecology and schooling supervisor on the Bronx River Alliance. “We have to cancel those things when the CSOs are active or shortly after they’ve been active, based on the EPA’s guidelines.”     

Surabian, who helps with kayaking occasions hosted by the Alliance, mentioned the final two he attended had been disrupted by sewage overflow and needed to be lower quick.

Harlem on the Rise

Fans of the Bronx River are keeping track of a water combat to the south, because the Harlem River is within the midst of a reevaluation of its cleanliness requirements.  

A planned reclassification would change the Harlem River’s score to “SB-WW,” which means that it will be thought-about “swimmable” throughout dry durations with a key caveat throughout “wet weather,” which means throughout and instantly after rainfalls, which is when uncooked sewage seeps into the river. 

Opponents of the transfer argue that the reclassification discourages additional efforts to wash up the river. It would nonetheless not absolutely meet the requirements vital to permit for swimming within the river whatever the climate and doesn’t meet the “swimmable” objectives specified by the federal Clean Water Act, based on a scientific assessment from DEC.

Those objectives embrace eliminating the discharge of pollution into the waters — not simply accepting them throughout wet durations — and offering for recreation in and on the water. 

The water high quality of the Harlem River already meets the usual DEC is attempting to change to —  swimmable water with an exception throughout wet climate — based on Em Ruby, advocacy and coverage coordinator at Riverkeepers.

“On paper, it’s a better classification, but in reality, they’re not proposing to make any further improvements to water quality,” mentioned Ruby. “That’s why we’re arguing to set the classification of the waterway at a standard it’s not currently meeting, so the city for the next 50 years can work toward actually being swimmable a hundred percent of the time.”

Harbor water quality data maintained by DEP reveals that every single day pattern taken from the Harlem River throughout dry climate in 2024 got here in beneath the single-day threshold for ranges of micro organism known as enterococchi, that are used as a barometer for water high quality, and got here in at or above the edge on half of the samples throughout moist climate. The dataset takes measurements from the center of the river, under a CSO outfall. 

However data from the Community Water Quality Testing Program carried out by the Billion Oyster Project  — taken from the bottom-most portion of the Harlem River in 2024 — confirmed numbers exceeding the SB-WW enterococci security threshold over all the 30-day durations supplied. 

As a part of the reclassification research, the DEC estimated they must spend an extra $9.3 billion at minimal over the following 25 years to construct a deep storage tunnel and different CSO-based infrastructure to assist get to a completely swimmable Harlem River even throughout moist climate. This would lower into different environmental initiatives, based on the division, and is the principle motive why they aren’t investing in additional CSO management past present commitments for water high quality.

“While these efforts do not instantly permit swimming or fishing in all waters, they establish the strongest protections to date, allowing DEC to further reduce pollutant inputs and safeguard the progress already made,” mentioned DEC spokesperson Denis Slattery. “These upgrades ensure that future generations inherit cleaner, safer waterways.”

Advocates are frightened the identical reasoning might be used to just accept the much less formidable requirements for the Bronx River and different metropolis waterways regardless that costly storage tanks and pump stations aren’t the one choice to deal with the CSO challenge.

“We feel like that’s kind of a cop-out to stop fighting for clean water forever and to just be like, ‘Okay, that’s good enough.’ That’s certainly not what we want to happen to any other water body,” mentioned Murphy.

Minimizing the quantity of rainwater from stepping into the sewers by diverting it to the water desk as an alternative can even play a pivotal position in maintaining metropolis waterways sewage-free, consultants be aware.

Currently, town has greater than 16,000 inexperienced infrastructure belongings (something that makes use of soil techniques, permeable surfaces or landscaping to scale back flows to sewers or pure our bodies of water), together with 7,000 rain gardens, in addition to 250 parks, playgrounds and NYCHA properties which have been retrofitted to deal with stormwater higher based on the Deputy Commissioner of Sustainability on the New York Department of Environmental Protection Angela Licata throughout a testimony at a City Council hearing in May.

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