Land Treatment – Treatment Program: 1. The administrative authority will specify the vertical and horizontal dimensions of the treatment zone in the facility permit. The treatment zone is the portion of the unsaturated zone below and including the land surface in which the owner or operator intends to maintain the conditions necessary for effective degradation, transformation, or immobilization of hazardous constituents. The maximum depth of the treatment zone must be: a. no more than 1.5 meters (5 ft.) from the initial soil surface; and b. more than one meter (3 ft. above the seasonal high water table.

Land Treatment – Treatment Program: 1. The administrative authority will specify the vertical and horizontal dimensions of the treatment zone in the facility permit. The treatment zone is the portion of the unsaturated zone below and including the land surface in which the owner or operator intends to maintain the conditions necessary for effective degradation, transformation, or immobilization of hazardous constituents. The maximum depth of the treatment zone must be: a. no more than 1.5 meters (5 ft.) from the initial soil surface; and b. more than one meter (3 ft. above the seasonal high water table.