Chapter ATCP 33

ATCP 33.32(4) (4) Capacity. The capacity of a mixing and loading pad under this section, including the capacity of any sump to which the mixing and loading pad drains, shall be at least 1,000 gallons or 125 percent of the capacity of the largest storage container loaded or unloaded at the storage facility, whichever is less. This subsection does not apply to a mixing and loading pad that was in use prior to November 1, 2006 and complies with capacity requirements that were in effect at that time, unless the operator substantially alters the mixing and loading pad.

ATCP 33.32(5) (5) Construction materials. A mixing and loading pad shall be constructed of portland cement concrete. A portland cement concrete mixing and loading pad constructed on or after November 1, 2006 shall meet the standards specified in chapters 5 and 6 of the Wisconsin Minimum Design and Construction Standards for Concrete Mixing and Loading Pads and Secondary Containment Structures (February 2005).

ATCP 33.32 Note Note: The Wisconsin Minimum Design and Construction Standards for Concrete Mixing and Loading Pads and Secondary Containment Structures (February 2005) were written by Professor David W. Kammel of the department of biological systems engineering, University of Wisconsin-Extension. Copies are on file with the department and the legislative reference bureau. Copies are available from the department, at no charge, at the following address:

ATCP 33.32 Note Department of Agriculture, Trade and Consumer Protection

ATCP 33.32 Note Agricultural Resource Management Division

ATCP 33.32 Note P.O. Box 8911

ATCP 33.32 Note Madison, WI 53708-8911

ATCP 33.32 Note Phone: [phone]

ATCP 33.32 Note Web: http://https://datcp.wi.gov/Pages/Homepage.aspx

ATCP 33.32(6) (6) Construction inspection. If a concrete mixing and loading pad is constructed on or after November 1, 2006, the operator or a person chosen by the operator shall inspect the construction for conformity to the design specifications filed with the department under s. ATCP 33.10 (1). The person conducting the inspection shall inspect and approve the construction of the soil sub-base, the laying of structural steel, and the laying of waterstop materials and devices before concrete is poured. The operator shall provide a copy of the inspection report and approval to the department.

ATCP 33.32 Note Note: The department recommends that construction inspection be performed by a qualified person experienced in reading plans and inspecting construction.

ATCP 33.32(7) (7) Inspection and maintenance.

ATCP 33.32(7)(a) (a) 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.

ATCP 33.32(7)(b) (b) Whenever an operator repairs a mixing and loading pad, the operator shall make the repair according to good engineering practice and manufacturer specifications, using materials approved by the department.

ATCP 33.32(7)(c) (c) 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. An operator shall remove a leaking mixing and loading pad unless the pad is repaired and remains liquid-tight for at least 2 years after the date of repair.

ATCP 33.32(8) (8) Pumping liquid products from rail cars. Section ATCP 33.30 and subs. (1) through (7) do not apply to the pumping of liquid bulk fertilizer or liquid bulk pesticide from a rail car to a storage container, provided that all of the following apply:

ATCP 33.32(8)(a) (a) The hose or pipeline from the rail car outlet valve to the pump is equipped with a shut-off valve, unless the pump can draw from no other hose or pipeline.

ATCP 33.32(8)(b) (b) The hose or pipeline from the pump to the storage container is equipped with an automatic check valve to prevent back flow. The check valve shall be located as close to the pump effluent port as possible, consistent with good engineering practice.

ATCP 33.32(8)(c) (c) All of the following are located over one or more spill containment basins that comply with par. (d):

ATCP 33.32(8)(c)1. 1. The rail car outlet valve.

ATCP 33.32(8)(c)2. 2. The pump.

ATCP 33.32(8)(c)3. 3. Every valve or plumbing connection that is located between the rail car outlet valve and the storage container, unless the valve or plumbing connection is threaded, welded, fused or permanently band-clamped.

ATCP 33.32(8)(d) (d) Every containment basin under par. (c) is liquid-tight, and is constructed of durable rigid material that is chemically compatible with any liquid that may be discharged to it. The basin shall have a capacity of at least 75 gallons, or a capacity at least equal to the capacity of the appurtenances that may discharge to it, whichever is greater. A containment basin may be permanent or portable. The operator shall routinely inspect and maintain the basin to ensure compliance with this paragraph.

ATCP 33.32(8)(e) (e) If the operator pumps the fertilizer or pesticide from the rail car to another mobile container, the other mobile container is parked on a mixing and loading pad that complies with this section.

ATCP 33.32(9) (9) Loading liquid bulk pesticide into anhydrous ammonia nurse tank. Section ATCP 33.30 and subs. (1) through (7) do not apply to the loading of liquid bulk pesticide into an anhydrous ammonia nurse tank if all of the following apply:

ATCP 33.32(9)(a) (a) The operator loads the bulk pesticide from a storage container that is located over a mixing and loading pad that complies with this section, or over a secondary containment structure that complies with s. ATCP 33.42.

ATCP 33.32(9)(b) (b) The operator uses a positive displacement pump to transfer the pesticide to the anhydrous ammonia nurse tank. The pump shall be located over a mixing and loading pad that complies with this section, or over a secondary containment structure that complies with s. ATCP 33.42. The pump shall be rated to deliver no more than 3 gallons per minute at a pressure of no more than 250 psi. The pump shall be equipped for manual shutdown, in addition to automatic shutdown under par. (c) 2.

ATCP 33.32(9)(c) (c) The pump under par. (b) is equipped with electronic controls that do all of the following:

ATCP 33.32(9)(c)1. 1. Prevent pump operation until the operator manually pre-sets the pumping volume and engages a separate manual starter switch.

ATCP 33.32(9)(c)2. 2. Automatically stop the pump when the pre-set volume has been pumped.

ATCP 33.32(9)(d) (d) The hose from the pump to the anhydrous ammonia nurse tank meets all of the following requirements:

ATCP 33.32(9)(d)1. 1. It is no longer than 12 feet and has an inside diameter of not more than 1/2 inch.

ATCP 33.32(9)(d)2. 2. It has a rated operating pressure of at least 1,200 psi with a burst strength of at least 5,000 psi.

ATCP 33.32(9)(d)3. 3. It has a check valve near its nurse tank end, and a manually operated valve and coupling to connect it to the nurse tank.

ATCP 33.32(9)(e) (e) The operator tests the connection between the hose and nurse tank before loading pesticide into the nurse tank, to ensure that the connection does not leak.

ATCP 33.32 Note Note: The most common pesticide products loaded into anhydrous ammonia are nitrapyrin based products.

ATCP 33.32 History History: CR 05-108: cr. Register October 2006 No. 610, eff. 11-1-06; CR 14-047: am. (5) (a), r. (5) (b) Register May 2015 No. 713, eff. 6-1-15; renum. (5) (a) to (5) under s. 13.92 (4) (b) 1., Stats., Register May 2015 No. 6-1-15.

ATCP 33.34 ATCP 33.34 Mixing and loading pad for dry products. Except as provided in sub. (6), a mixing and loading pad used for dry fertilizer or pesticide shall comply with all of the following:

ATCP 33.34(1) (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.

ATCP 33.34 Note 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.

ATCP 33.34(2) (2) Portland cement or asphalt concrete construction. A mixing and loading pad shall be constructed of portland cement or asphalt concrete.

ATCP 33.34(3) (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.

ATCP 33.34(4) (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.

ATCP 33.34(5) (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.

ATCP 33.34(6) (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.

ATCP 33.34 History History: CR 05-108: cr. Register October 2006 No. 610, eff. 11-1-06; CR 14-047: consol. (6) (intro.) and (a) and renum. to (6) and am., r. (6) (b) Register May 2015 No. 713, eff. 6-1-15; correction in (3) under s. 35.17, Stats. Register May 2015 No. 713.

subch. V of ch. ATCP 33 Subchapter V — Sumps

ATCP 33.36 ATCP 33.36 Sumps; general. If a mixing and loading pad or secondary containment structure drains to a sump, the sump shall be all of the following:

ATCP 33.36(1) (1) Designed, constructed and maintained to contain liquid that drains to the sump.

ATCP 33.36(2) (2) Liquid-tight.

ATCP 33.36(3) (3) Constructed according to s. ATCP 33.38.

ATCP 33.36(4) (4) Served by a pump and storage container that comply with s. ATCP 33.50.

ATCP 33.36(5) (5) Inspected and approved at the time of construction, in the same manner as a mixing and loading pad inspected under s. ATCP 33.32 (6), if the sump is constructed of portland cement concrete on or after November 1, 2006. The operator shall provide DATCP with a copy of the inspection report and approval.

ATCP 33.36(6) (6) Routinely inspected and maintained to ensure compliance with this section.

ATCP 33.36(7) (7) Repaired, when necessary, according to good engineering practice and manufacturer specifications.

ATCP 33.36(8) (8) Removed if it cannot be maintained in compliance with this section, or if corrective action is needed to remove contamination from beneath the sump. An operator shall remove a leaking sump unless the sump is repaired and remains liquid-tight for at least 2 years after the date of repair.

ATCP 33.36 History History: CR 05-108: cr. Register October 2006 No. 610, eff. 11-1-06.

ATCP 33.38 ATCP 33.38 Sump construction.

ATCP 33.38(1) (1) General. Except as provided in sub. (2):

ATCP 33.38(1)(a) (a) A sump that is part of a mixing and loading pad, or part of a portland cement concrete secondary containment structure, shall be constructed of portland cement concrete and shall meet the standards specified in chapters 5 and 6 of the Wisconsin Minimum Design and Construction Standards for Concrete Mixing and Loading Pads and Secondary Containment Structures (February 2005).

ATCP 33.38 Note Note: 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:

ATCP 33.38 Note Department of Agriculture, Trade and Consumer Protection

ATCP 33.38 Note Agricultural Resource Management Division

ATCP 33.38 Note P.O. Box 8911

ATCP 33.38 Note Madison, WI 53708-8911

ATCP 33.38 Note Phone: [phone]

ATCP 33.38 Note Web: http://https://datcp.wi.gov/Pages/Homepage.aspx

ATCP 33.38(1)(b) (b) A sump shall have a capacity of not more [than] 50 gallons.

ATCP 33.38 Note Note: The word in brackets was omitted from CR 05-108.

ATCP 33.38(1)(c) (c) A sump may not be more than 2 feet deep, or have a depth that exceeds its shortest width.

ATCP 33.38(1)(d) (d) The walls and floors of a sump shall be at least as thick, at every point, as the mixing and loading pad or secondary containment structure floor that drains to the sump.

ATCP 33.38(1)(e) (e) A sump that is part of a mixing or loading pad shall form part of a continuous surface, having an area of at least 15 feet by 15 feet and a capacity of at least 250 gallons, which is free of construction and control joints.

ATCP 33.38(1)(f) (f) If a sump is constructed as part of a concrete mixing and loading pad or concrete secondary containment structure, it shall be constructed in a continuous concrete pour with that pad or structure.

ATCP 33.38(1)(g) (g) No pipes or openings may extend through a sump. This does not prohibit a surface trough or rim indentation needed to accommodate a pipe or hose connection required under s. ATCP 33.50.

ATCP 33.38(1)(h) (h) A sump shall be readily accessible for inspection. Pumps, collection basins or other equipment placed in the sump shall be readily removable, so that all surfaces of the sump can be easily inspected.

ATCP 33.38(2) (2) Exemption. Subsection (1) does not apply to a sump that was in service prior to November 1, 2006 if all of the following apply:

ATCP 33.38(2)(a) (a) The sump is not substantially altered on or after November 1, 2006.

ATCP 33.38(2)(b) (b) The sump does not receive runoff from any mixing and loading pad or secondary containment structure that is constructed or substantially altered on or after November 1, 2006.

ATCP 33.38(2)(c) (c) The sump meets construction standards that applied at the time of its construction.

ATCP 33.38(2)(d) (d) The operator pressure tests any underground piping or conduit connected to the sump to ensure that the piping or conduit is liquid-tight. The operator shall perform a pressure test at least annually and shall keep a written record of the pressure test results.

ATCP 33.38 History History: CR 05-108: cr. Register October 2006 No. 610, eff. 11-1-06; CR 14-047: am. (1) (a) Register May 2015 No. 713, eff. 6-1-15.

subch. VI of ch. ATCP 33 Subchapter VI — Secondary Containment Structures

ATCP 33.40 ATCP 33.40 Secondary containment required.

ATCP 33.40(1) (1) General. Except as provided in sub. (2), all of the following shall be located within a secondary containment structure that complies with s. ATCP 33.42:

ATCP 33.40(1)(a) (a) Storage containers.

ATCP 33.40(1)(b) (b) Storage container shut-off valves under s. ATCP 33.20 (2) (a).

ATCP 33.40(1)(c) (c) Liquid level gauging devices under s. ATCP 33.20 (3).

ATCP 33.40(2) (2) Exempt storage containers. No secondary containment is required under sub. (1) for any of the following:

ATCP 33.40(2)(a) (a) An empty storage container that has been thoroughly cleaned and rinsed. A pesticide container is thoroughly cleaned and rinsed if all exterior surfaces of the container are free of pesticide residues and all inside surfaces are triple rinsed.