CORRECTS LAST NAME TO MCKENZIE, INSTEAD OF MCKENVIE In this photo provided by Cynthia McKenzie is sewage backup that flooded her home, Saturday, Nov. 30, 2019, in the Jamaica, Queens section of New York. Officials say a water condition is causing human waste to back up into several hundred homes in the area there. (Cynthia McKenzie via AP)

CORRECTS LAST NAME TO MCKENZIE, INSTEAD OF MCKENVIE In this photo provided by Cynthia McKenzie is sewage backup that flooded her home, Saturday, Nov. 30, 2019, in the Jamaica, Queens section of New York. Officials say a water condition is causing human waste to back up into several hundred homes in the area there. (Cynthia McKenzie via AP)

NEW YORK (AP) — A blocked sewer main flooded basements Saturday with brown filth and left residents in the neighborhood near New York City’s Kennedy Airport feeling sickened by the stench.

A water condition caused the backup, pushing human waste into about 300 homes in Jamaica, Queens, officials said.

Cynthia McKenzie said she woke up around 3 a.m. to an odor she thought was a gas leak, only to realize that sewage water was rushing into her basement.

As the water level rose, McKenzie said she raced to move furniture and other belongings — but some electronics couldn’t be saved. After a few hours, she said, her whole neighborhood was awash in fetid fluid.

ADVERTISEMENT

“It’s messy,” said McKenzie, who posted photos showing murky water covering the floor of a basement bedroom and the bottom of a staircase.

“When you open it, it just smells,” she said. “It makes you want to vomit. We have to pack up all the clothes.”

Mayor Bill de Blasio said crews were making repairs and bringing in pumping equipment to clear up the mess.

The city’s water agency says drinking water is safe and unaffected, but de Blasio advised residents to reduce usage to cut down on water going into the blocked main.

McKenzie said she bought two pumps from Home Depot and ran extension cords and a hose to try and clear water from her basement, but the rig hardly kept up.

“There’s still some at knee level,” she said. “The odor is just unbelievable.”

McKenzie said she called 911 and the city’s 311 help line soon after discovering the sewage. A few firefighters eventually showed up, she said, but according to her, none of the city services could stop the flow of sewage.

Officials have a culprit in mind: cooking grease that’s been poured down the drain.

It tends to congeal into big masses that slow or stop the flow of sewage, leaving it no place to go but back up the pipes. In some places around the world , the grease balls have gotten so enormous they’ve been described as “fatbergs.”

“This time of year we get a lot of grease blockages in sewers from residents that discharge grease,” city environmental protection chief Vincent Sapienza told reporters. “We’re under the assumption that it’s that.”

Most residents in the middle-class neighborhood are non-white and about half are foreign-born, according to U.S. Census Bureau data.

De Blasio says American Red Cross and city emergency management representatives are at the scene to help families displaced by the sewer back up. The city opened a service center for affected residents at a nearby public school.

De Blasio said the city is working to provide hotel rooms to anyone who was unable to return home Saturday night.

“It’s unlivable,” McKenzie said. “It’s all around the neighborhood and farther down.”

___

This story has been corrected to show the last name of the Queens resident is McKenzie, not McKenvie.