"How could a utility of that size, with the financial support that it receives, fail to communicate with its residents?" he said. "Its basic logistics seem to have failed."
Mangano and other lawmakers have called for the federal government to step in and assist with restoring power to Long Island, saying LIPA could not be trusted to get the job done.
On Sunday, LIPA said it had restored power to 95 percent of homes and businesses where it was safe to receive power and that that figure would be 99 percent by the end of Tuesday. It scheduled a news conference for later Sunday to update its progress.
Phillip Jones, 43, a parole officer in Uniondale, said he had called LIPA about 10 times a day before his power was turned on Saturday and usually just got a busy signal. A few times he got a recording saying the company was aware of the problems and would call if it needed to speak to him.
"Which was kind of strange," Jones said, "because most of the phones were not working that well."
Jones also criticized LIPA's failure to find a way to tell people how long to expect to be without electricity.
"If they had said the lights won't be on until two weeks from now, I could have made a two-week plan," he said. Instead, he and his wife and two children had been sleeping in one bed to try to stay warm, and he missed two weeks of work. "All you could do was hope that today would be the day."
In New York City, the mayor's office said about 6,000 residents of low-income housing were still without power in 30 buildings. Ahead of a Veterans Day wreath-laying ceremony, Mayor Michael Bloomberg said the city was "getting more generators in" and added, "It's a question of how quickly the electricians can set things up."
He said heating is "a more complex problem, but that's coming along as well."
Police raised the city's death toll from the storm to 43, after the death of a 77-year-old retired custodian who apparently fell down the stairs of his apartment building in the Rockaways, when it was dark and without power. Family members found him on Oct. 31; he died at a hospital Saturday.
Though New York and New Jersey bore the brunt of the destruction, at its peak, the storm reached 1,000 miles across, killed more than 100 people in 10 states, knocked out power to 8.5 million and canceled nearly 20,000 flights. More than 12 inches of rain fell in Easton, Md., and 34 inches of snow fell in Gatlinburg, Tenn. Damage has been estimated $50 billion, making Sandy the second most expensive storm in U.S. history, behind Katrina.