Hundreds of thousands of gallons of water poured into Smithtown after a dam broke due to rain that fell Sunday and Monday.

That's according to Suffolk County Executive Ed Romaine, who said a concrete dam that was in Blydenburgh Pond broke because of the heavy rain, and the entire pond emptied into the Nissequogue River, sending it pouring over its banks and into homes and onto streets.

Romaine said the pond, also known as Stump Pond, was created in 1798.

"When they dammed this river and created this pond, they cut the trees and kept the stumps, these stumps haven't been seen for 226 years, this is how devastating the storm was." Romaine said.

The county executive said all the water from the pond emptied into the Nissequogue River and then into homes and onto the streets.

"This is a major catastrophe." said Romaine about the damage in parts of Suffolk county after the storm.

"A lot of the calls that we had were very severe and we were running from one to another." said Chief of Department Timothy Duckham, of the Smithtown Fire Department.

Members of the Smithtown Fire Department tell News 12 they had to activate their "Zodiac Emergency Boat" to rescue two people trapped on the second floor of a home Monday morning after water flooded into their home from the swollen Nissequogue river.

"It was raging water from the Nissequogue river, so it was pretty intense," said Rick Torre, Jr., public information officer with the Smithtown Fire Department.

"We had flooding conditions on the road that we had to avoid, try to circle around, backtrack a little bit," said Third Assistant Chief Joseph Palazzo, of the Smithtown Fire Department about some of the conditions first responders faced responding to calls for help.

On top of all their water rescues, flooding calls and even multiple fires, members of the volunteer Smithtown Fire Department were out helping people, while some of their homes also had water in them.

"They were also trying to mitigate some of the issues they were having in their own house with flooding." said First Assistant Chief Dan Dongvort.

Longtime Smithtown resident John Corso, who said he's been coming to Blydenburgh Park for years, said he was shocked to see what happened after the storm.

"I heard that there was some water damage, but I didn't think it was this." said Corso.