ATCP 33.20(4)(a)(a) Storage containers and appurtenances used to store nitrogen solutions may not be constructed of copper, brass, zinc, or copper base alloys. ATCP 33.20(4)(b)(b) Storage containers and appurtenances used to store liquid fertilizers containing phosphates or chlorides may not be constructed of aluminum or aluminum alloys. ATCP 33.20(4)(c)(c) Storage containers and appurtenances used to store low pH liquid fertilizers may not be constructed of ferrous materials other than stainless steel, unless the materials are coated or treated with protective substances that effectively inhibit corrosion. ATCP 33.20(4)(d)(d) Storage containers and appurtenances used to store phosphoric acid may not be constructed of ferrous materials other than 316 or 317 stainless steel unless the container is lined with a substance to prevent corrosion. ATCP 33.20(4)(e)(e) Storage containers and appurtenances used to store liquid fertilizers containing potassium chloride (potash) may not be constructed of ferrous materials other than stainless steel unless one of the following applies: ATCP 33.20(4)(e)1.1. The storage containers and appurtenances are lined, coated or treated with protective substances that effectively inhibit corrosion. ATCP 33.20(4)(e)2.2. The storage containers and appurtenances are used for storage periods of not more than 6 months each, and are completely emptied, cleaned and inspected for leaks and corrosion before being refilled for any subsequent storage period. ATCP 33.20(5)(5) Prohibited materials; pesticide storage containers. ATCP 33.20(5)(a)(a) Pesticide storage containers and appurtenances may not be made of polyvinyl chloride unless they are used only to store sodium hypochlorite. ATCP 33.20(5)(b)(b) Pesticide storage containers and appurtenances may not be made of ferrous metals unless one of the following applies: ATCP 33.20(5)(b)1.1. The storage containers and appurtenances are made of stainless steel. ATCP 33.20(5)(b)2.2. The storage containers and appurtenances have a protective lining that prevents corrosion and does not react chemically with the stored pesticide. ATCP 33.20(5)(b)3.3. The storage containers and appurtenances are used only to store non-corrosive wood preservatives. ATCP 33.20(6)(a)(a) Except as provided in par. (b), storage containers shall be anchored to prevent flotation or instability that may result from liquid accumulation within a secondary containment structure. Anchors shall be independent of secondary containment structures and mixing and loading pads, except that anchor plates may be embedded in portland cement concrete floors of secondary containment structures if the anchor plates and the concrete floors are designed to withstand the flotation and wind stresses placed on them. ATCP 33.20 NoteNote: Anchors located in soil outside the secondary containment structure do not place any added stress on the structure or its construction. It is possible to design anchor plates for the floors of a portland cement concrete secondary containment structure to withstand anchor stresses, but similar designs for walls are usually inadequate or cost-prohibitive.
ATCP 33.20(6)(b)1.1. A storage container located in a secondary containment structure that complies with s. ATCP 33.42, if it is the only storage container located in that secondary containment structure. ATCP 33.20(7)(a)(a) Except as provided in par. (b), an operator shall secure each storage container and its appurtenances by doing at least one of the following: ATCP 33.20(7)(a)1.1. Keeping the storage container and appurtenances in a locked building. ATCP 33.20(7)(a)3.3. Keeping the storage container and appurtenances in a locked outdoor enclosure that complies with par. (c). ATCP 33.20(7)(b)2.2. The storage container and its appurtenances are empty and thoroughly cleaned. Thorough cleaning, in the case of a pesticide storage container and its appurtenances, means removal of pesticide residues from exterior surfaces and triple rinsing of interior surfaces. Triple rinsing of interior surfaces is not required if a manufacturer-installed device prevents the container from being opened. ATCP 33.20(7)(c)(c) An enclosure under par. (a) 3. shall consist of a secure wall or fence that is at least 5 feet tall at every point, and free of gaps that could allow unauthorized persons to enter. Security fencing installed on a concrete secondary containment structure wall shall comply with chapter 2 of the Wisconsin Minimum Design and Construction Standards for Concrete Mixing and Loading Pads and Secondary Containment Structures (February 2005), if the secondary containment structure is constructed after November 1, 2006. ATCP 33.20 NoteNote: The Wisconsin Minimum Design and Construction Standards for Concrete Mixing and Loading Pads and Secondary Containment Structures (February 2005), written by Professor David W. Kammel, department of biological systems engineering, University of Wisconsin-Extension, is on file with the department and the legislative reference bureau. Copies are available from the department, free of charge, at the following address: