Last night at 9:30 p.m., the North River Wastewater Treatment Plant stopped discharging "untreated" sewage into the Hudson River. The plant, which has been in operation since 1986 and treats about 120 million gallons of a wastewater a day, was hobbled by a four-alarm fire on Wednesday that knocked out its engine room pumps. And it was quite an effort from the Department of Environmental Protection. more ›

It's the question that's baffled every four-year-old in America. Where does the water go when you flush the toilet? Now, thanks to this map from the environmental health organization Habitat Map, you can find out the answer. The map breaks down the city into color-coded "sewagesheds," allowing New Yorkers can figure out if their toilets contribute to the stench that has long plagued sections of Brooklyn near the Owls Head Wastewater Treatment Plant, or if heavy rains cause their flushes to become a part of the 586 million gallons of raw sewage poured into Newtown Creek annually, or the 1.43 billion gallons dumped into the waters off of Astoria every year. It's also the perfect complement to this map of New York City public toilets. more ›

Apparently New Yorkers make so much waste that the city's Department of Environmental Protection has to ship NYC sludge to the Garden State. According to the Daily News, "Sludge production at the Newtown Creek sewage treatment plant - the last of the city's 14 plants to upgrade its systems - has shot up 28% in five years." City Councilman David Yassky is concerned that the Newtown Creek upgrade will end up costing $5 billion, over twice its initial estimate, and said, "There is just something very wrong with DEP's management of its construction projects." At any rate, the DEP thinks the deal with NJ was necessary (and it also means that less waste will go into the East River); deputy commissioner of wastewater treatment Doug Greeley joked, "[Otherwise] It would be constipating New York City." more ›

In Mark Kurlansky's 2005 book about New York City and oysters, The Big Oyster: History on the Half Shell, the author suggested that given the improved environmental conditions of New York Bay, perhaps the time is ripe to start replanting the oyster fields that used to carpet the underwater surface. The City and environmentalists are now undertaking a project to replant oyster beds in the bay, not for harvesting, but as natural, or soft, anti-pollution filters. more ›