ATTICA – Roughly half of the huge burning pile of recyclable materials at Hillcrest Industries has been moved and cooled, the U.S. Environmental Protection Agency reported Tuesday.

An EPA spokesman said that work crews are proceeding toward the hottest part of the 40-foot-high, one-acre pile and are encountering temperatures of 575 degrees and occasional pockets of open flame.

The piles still are emitting visible steam and noxious odors, the EPA added, but testing shows that dangerous byproducts from the burning are at either very low levels or undetectable.

The EPA said it will continue working and monitoring the air until the fire is completely extinguished.