All 1,900 feet of the south train tracks have been removed from the site of the East Palestine train derailment as of Thursday afternoon.

In addition, the soil and materials that make up the track bed underneath have been removed to the clay layer, a depth of approximately 48 inches.

To ensure that crews have dug deep enough and that all contaminated soil has been removed from under the south tracks, contractors have been testing the soil remaining at the clay layer.

According to a news release from Ohio Governor, Mike DeWine, test results show some portions of sampled soil meet the clean standards determined by state and federal authorities.

These sections will be filed with gravel and reconstruction of the tracks will begin.

Areas that did not mean the clean standards will undergo more soil removal and another round of testing will take place. Rails in these sections will not be reconstructed until the sampling results meet the clean standards determined by state and federal authorities.

Removal of the north tracks will begin once the south tracks are fully reconstructed.