Northport police stopped a Middle Island man over a traffic violation Saturday afternoon but discovered he had a stash of heroin worth $14,500, authorities said Monday.

John Talavera, 26, of James Way, was arraigned in Northport Village Court on first- and third-degree criminal possession of a controlled substance, criminal possession of a hypodermic instrument, criminally using drug paraphernalia, and aggravated unlicensed operation of a motor vehicle. He was also charged with traffic violations such as disobeying a stop sign, failure to signal and driving an uninspected, uninsured vehicle after the 2:35 p.m. incident on Scudder Avenue in Northport.

Police said that during the stop, which they said was initiated after Talavera violated a traffic law, Officer Gregory Cerar determined that Talavera’s license had been suspended.

Cerar also “observed a powder on the floor by Talavera’s feet and drug packing materials throughout the car,” according to a news release distributed by police.

Those materials, police said, include “730 decks of heroin packaged for sale, another 36 grams of loose heroin in a bag, $2,450 in cash, a hypodermic needle and assorted drug packing supplies,” police said.

Northport Police said they discovered a stash of heroin worth $80,000 when they pulled over John Talavera, 26, of Middle Island, after a traffic violation on Saturday afternoon, Aug. 20, 2016. Photo Credit: Northport Police

Police calculated the street value of each packet at $10, the 730 packets adding up to $7,300. They also said that 36 grams of loose heroin has a street value equal to $7,200.

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Talavera was being held at the Suffolk jail on $39,300 bond or $19,650 cash, police said. His attorney could not be reached for comment.

CORRECTION: The amount of money the heroin is worth was incorrect in a previous version of this story.