Oklahoma Administrative Code
Title 35 - Oklahoma Department of Agriculture, Food, and Forestry
Chapter 30 - Consumer Protection
Subchapter 17 - Combined Pesticide
Part 15 - MINIMUM STANDARDS FOR TERMITE WORK FOR EXISTING STRUCTURES
Section 35:30-17-69 - Concrete slabs for existing structures

(1) Termiticide shall be injected immediately under and adjacent to the slab at the rate specified on the label by drilling and treating to create a continuous barrier between the soil and the outside perimeter walls of the structure. Use of a sub-slab injector or similar device to prevent backflow is recommended. All drill holes shall be securely plugged. Application pressure shall not exceed 25 psi. Monolithic, supported slab with thickened perimeter or post tension slabs, with or without footing, shall be treated by drilling only in areas where known cracks exist.

(2) Where evidence of termite infestation exists on interior walls, the slab shall be treated by drilling the slab and treating the soil under the slab at the base of the wall where the termite activity is present and continue for a minimum of three (3) feet in at least two (2) directions from the termite activity. The treatment may be performed on either side of the wall if construction elements prevent treatment on the side of termite activity, so long as the reason for treating only one side of the treatment is discussed on the contract and the customer consents in writing.

(3) Maximum spacing for drilling shall be twelve inches (12") except where long rodding of the perimeter is performed.

(4) Termiticide shall not be applied to any area intended as a plenum air space unless permitted by the label.

(5) Soil applied termiticide shall not be used to treat any structure containing a well or cistern unless allowed by the label.

(6) Basement concrete slab floors shall not be drilled and treated unless there is evidence of termite infestation in the basement area.

(7) Where wooden parts are resting on known cracked concrete or expansion joints, including but not limited to garage floor, patio, porches, or interior, holes shall be drilled on one or both sides of the wooden part and the soil below treated. Where wood parts extend into or through concrete slab or are adjacent to an expansion joint, the slab adjacent to the wood part shall be drilled at a maximum of twelve inch (12") intervals on one or both sides and treated.

(8) Dirt filled porches, entry platforms, sidewalks, patios, and other similar areasshall be treated by drilling or rodding. If drilled, holes shall not be in excess of twelve inches (12") apart.