A new round of Department of Education testing has revealed that 83 percent of city schools had at least one water fixture with lead levels exceeding federal safety limits, officials said Friday.

The DOE vetted water sources at 1,544 buildings beginning last November and found that 1,278 had one or more taps with lead levels of more than 15 parts per billion, according to new data.

Of the 132,276 faucets tested, 10,633 — or 8 percent — registered lead levels beyond that limit and required immediate remediation.

A total of 19 schools had at least 40 faucets with elevated levels each and William Grady Career and Technical HS in Brighton Beach, had the highest number of tainted fixtures with 101.

The latest numbers represented a sharp departure from a prior round of discredited DOE testing.

The department had flushed pipes prior to testing to expel stagnated water that was more likely to carry lead particles. Under that protocol, just 1 percent of all faucets exceeded federal limits.

The DOE was compelled to retest the fixtures in recent months.

The Post reported last week that a classroom fountain at PS 289 in Crown Heights, Brooklyn, registered a 15,000 parts per billion lead level in December — 1000 times the federal limit.

The DOE repeated Friday that they immediately removed taps found to be over the federal limit.

“Families should rest assured that water in schools is safe for students and staff to drink,” said Deputy Schools Chancellor Elizabeth Rose.