Wisconsin Administrative Code
Department of Agriculture, Trade and Consumer Protection
ATCP 20-54 - Agricultural Resource Management
Chapter ATCP 33 - Fertilizer And Pesticide Bulk Storage
Subchapter IV - Mixing and Loading Pads
Section ATCP 33.34 - Mixing and loading pad for dry products
Current through August 26, 2024
Except as provided in sub. (6), a mixing and loading pad used for dry fertilizer or pesticide shall comply with all of the following:
(1) CONVEYOR CONTAINMENT. A mixing and loading pad shall extend beneath any conveyor used to load or unload dry bulk fertilizer or dry bulk pesticide, unless the conveyor is fully enclosed within a housing that contains all spillage from the conveyor.
Note: Section ATCP 33.62 requires that the unloading chute or conveyor be equipped with a dust control system or device to further minimize the risk of discharge.
(2) PORTLAND CEMENT OR ASPHALT CONCRETE CONSTRUCTION. A mixing and loading pad shall be constructed of portland cement or asphalt concrete.
(3) STRUCTURAL CAPABILITY. A mixing and loading pad shall be designed, constructed and maintained to withstand all foreseeable load conditions, including the filled weight of all vehicles, application equipment or other equipment that may be used or located on it.
(4) MIXING AND LOADING PAD INSPECTION AND MAINTENANCE. An operator shall inspect a mixing and loading pad at least semi-annually, and shall maintain the mixing and loading pad as necessary, to ensure compliance with this section. Whenever an operator repairs a mixing and loading pad, the operator shall make the repair according to good engineering practice and manufacturer specifications.
(5) MIXING AND LOADING PAD REMOVAL. An operator shall remove a mixing and loading pad if the operator cannot maintain it in compliance with this section, or if corrective action is needed to remove contamination from beneath the pad.
(6) UNLOADING DRY FERTILIZER FROM RAIL CARS. Section ATCP 33.30 and subs. (1) through (5) do not apply to the unloading of dry bulk fertilizer from bottom-unloading rail cars, provided that the operator unloads the fertilizer over a fixed or portable containment basin or a portland cement or asphalt concrete pad. The containment basin shall be made of durable rigid material, and shall effectively contain any dry fertilizer that may be discharged during the unloading process. The operator shall routinely inspect and maintain the containment basin or pad to ensure compliance with this paragraph.
