§ 264a.273. Design and operating requirements.
In addition to the requirements incorporated by reference, land treatment of hazardous waste shall be subject to the following restrictions:
(1) The hazardous waste shall be mixed into or turned under the soil surface within 24 hours of application, unless it is spray irrigated and the spray irrigated hazardous waste:
(i) Is used for top dressing.
(ii) Has plant nutrient value.
(iii) Is applied with proper spray irrigation equipment and through proper spray irrigation methods.
(iv) Is not transported offsite by aerosol transport while being spray irrigated.
(2) Hazardous waste shall be spread or sprayed in thin layers to prevent ponding and standing accumulations of liquids or sludges.
(3) Hazardous waste may not be applied when the ground is saturated, covered with snow, frozen or during periods of rain.
(4) Hazardous waste may not be applied in quantities which will result in vector or odor problems.
(5) Hazardous waste shall only be applied to those soils which fall within the United States Department of Agriculture (USDA) textural classes of sandy loam, loam, sandy clay loam, silty clay loam and silt loam.
(6) The soils shall have sola with a minimum depth of 20 inches and at least 40 inches of soil depth.
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