The Ogden Internal Revenue Service Center received 812,000 federal income tax returns on Wednesday, two days after the deadline for putting the forms in the mail.

IRS spokesman Doug Green said the center has received 3.3 million returns since April 10, bringing the total to 10.1 million.The facility expects to handle 12.3 million returns by the end of the fiscal year in October, he said.

Green summed up the IRS center's mood this way: "It's a zoo out here."

So far, the center has received requests from 114,000 people for filing extensions. That number is expected to double, Green said.

The center by Monday had shipped 6.3 million returns to the national computer center in West Virginia, Green said. It is 16 percent ahead of the anticipated schedule of processing returns, he said.

The center's work force is at an all-time high of more than 6,000 employees, but that level will begin to drop in about two weeks, with mail clerks being some of the first to go, he said.