A pound of white powder found at a migrant shelter on Staten Island has turned out to be nothing more than Epsom salt, city officials confirmed late Friday. 

The disclosure came hours after law enforcement sources initially identified the substance as methamphetamine, igniting a new round of recriminations over shelter oversight and leading local politicians already hostile to the facility to demand its closure.

“The safety and well-being of those in the city’s care are our top priorities,” said City Hall spokesman Charles Lutvak in a statement. “NYPD responded immediately to this location and conducted testing on the substance, which was determined to be Epsom salt.”

The sources told The Post initially that the white powder was initially found in a black bag at the infamous Ramada Inn on North Gannon Avenue late Wednesday by a hotel employee. 

“Whether the alleged substance is methamphetamine or not, the fact still remains that security at migrant shelters is inadequate both for the safety of the people staying at the migrant shelters and for the surrounding neighborhoods,” said Assemblyman Michael Tannousis (R-Staten Island/Brooklyn) in a statement released after the dramatic turn of events.

Tannousis demanded that city officials shut down all of the nearly 200 migrant shelters that have been set up in the middle of residential areas across the five boroughs.

“The security precautions taken at these migrant shelters are either close to non-existent or are being carried out by unqualified individuals,” the GOP lawmaker said.

The Ramada Inn was turned into a 35-unit migrant shelter in May as city officials grappled with the relentless influx of asylum seekers pouring into the Big Apple — much to the ire of residents and local pols.

The hotel-turned-shelter was a ghost town when The Post visited Friday — with barely anyone coming or going and zero cars in the parking lot.

An NYPD cruiser pulled up out front several times throughout the afternoon.

Those inside the shelter, who appeared to be staff and not migrants, refused to come to the door, instead yelling: “We’re closed.”

Robert Renaud, 60, who lives beside the hotel shelter, said he only ever sees migrants emerging early in the morning dressed in construction gear.

“Sometimes the place looks like it’s closed down, it’s so quiet,” Renaud told The Post. “You never see any migrants congregating outside. They don’t smoke outside or hang out.”

“The other night someone was banging on a van in the parking lot and before you knew it there were eight National Guard outside making sure nothing happened,” he added.

Additional reporting by Larry Celona and Nolan Hicks