Chapter ATCP 33

ATCP 33.44(3)(f)1. 1. A synthetic geotextile.

ATCP 33.44(3)(f)2. 2. A layer of soil, sand or smooth gravel at least 6 inches (15.24 centimeters) thick. The layer shall consist of particles less than ½ inch in diameter, and shall be free of sharp objects that may penetrate the liner.

ATCP 33.44(3)(g) (g) The liner is separated, by both of the following, from every storage container whose weight bears on the liner:

ATCP 33.44(3)(g)1. 1. A synthetic geotextile that rests on the liner.

ATCP 33.44(3)(g)2. 2. A layer of soil, sand or smooth gravel at least 3 inches (7.62 centimeters) thick that rests on the synthetic geotextile. If the soil, sand or gravel is held in place by a steel, synthetic or other structure, the geotextile liner under subd. 1. shall extend beneath that structure.

ATCP 33.44(3)(h) (h) The liner is protected, as necessary, against damage from human and motor vehicle traffic.

ATCP 33.44(3)(i) (i) The liner is protected against damage from sunlight and other sources, as necessary, according to manufacturer recommendations.

ATCP 33.44(4) (4) Prefabricated structures. A secondary containment structure may consist of one or more basins pre-fabricated of steel or rigid synthetic material if all of the following apply:

ATCP 33.44(4)(a) (a) The steel or synthetic material resists corrosion, puncture and cracking. Prefabricated steel structures shall be at least 1/8 inch thick at every point.

ATCP 33.44(4)(b) (b) The steel or synthetic material is chemically compatible with all fertilizers or pesticides that may be stored within the basin. The basin manufacturer shall certify chemical compatibility in writing, and the operator shall submit a copy of the certification to the department.

ATCP 33.44(4)(c) (c) If 2 or more basins are connected to form the secondary containment structure, the connection permits free movement of any discharged liquid between the basins.

ATCP 33.44(5) (5) Steel structures constructed in place. A secondary containment structure may be constructed of steel, if it is constructed in place. A steel secondary containment structure constructed on or after November 1, 2006 shall be at least 1/8 inch thick at every point.

ATCP 33.44(6) (6) Structures with earthen liners.

ATCP 33.44(6)(a) (a) A secondary containment structure may be constructed of earth or other materials if one of the following applies and the structure has an earthen liner that complies with par. (b):

ATCP 33.44(6)(a)1. 1. The structure was in use prior to November 1, 2006.

ATCP 33.44(6)(a)2. 2. The structure contains only fertilizer storage containers that were constructed on site.

ATCP 33.44(6)(b) (b) An earthen liner under par. (a) shall comply with all of the following:

ATCP 33.44(6)(b)1. 1. The liner shall be designed and constructed, according to good engineering practice, to achieve a coefficient of permeability of not more than 1 x 10-6 cm/sec.

ATCP 33.44(6)(b)2. 2. The liner shall be at least 6 inches (15 centimeters) thick.

ATCP 33.44(6)(b)3. 3. The liner shall be covered by an inorganic soil layer not less than 6 inches (15 centimeters) thick.

ATCP 33.44(6)(b)4. 4. The liner shall be maintained to prevent cracking.

ATCP 33.44(6)(b)5. 5. The liner may not be constructed of silt, silty sand or other frost–susceptible soils.

ATCP 33.44(6)(b)6. 6. If the liner is made of natural soil, not less than 50% by weight of the natural soil shall pass through a number 200 soil sieve and not less than 95% by weight of the natural soil shall pass through a number 4 sieve. A natural soil liner shall contain not more than 2% organic material and shall have a plasticity index of at least 15.

ATCP 33.44(6)(b)7. 7. The liner, if treated with bentonite, shall have a uniform mixture of natural soil and bentonite. The natural soil shall have a plasticity index of at least 12. Not less than 30% by weight of the natural soil shall pass through a number 200 soil sieve, and not less than 95% by weight of the natural soil shall pass through a number 4 soil sieve. Not less than 90% by weight of the bentonite shall pass through a number 80 soil sieve, and the soil–bentonite mixture shall contain at least 5% bentonite by weight.

ATCP 33.44(6)(b)8. 8. The liner shall be reconstructed at least once every 15 years.

ATCP 33.44(6)(b)9. 9. The operator shall remove storage containers from the secondary containment structure before reconstructing or recompacting the liner, except that the operator is not required to remove a storage container that has a capacity of 50,000 gallons or more.

ATCP 33.44(6)(b)10. 10. Before the operator reconstructs or recompacts the liner, the operator shall analyze the liner material for compliance with subds. 6. and 7., and to determine whether corrective action is required under ch. ATCP 35.

ATCP 33.44(7) (7) Building floor; mini-bulk and mobile containers. A warehouse or other building may be used as a secondary containment structure for all of the following if the building complies with this section and can contain a discharge of liquid fertilizer or pesticide:

ATCP 33.44(7)(a) (a) Mini-bulk containers of fertilizer or pesticide.

ATCP 33.44(7)(b) (b) Mobile containers kept in the building for not more than 7 days.

ATCP 33.44(8) (8) Mixing and loading pads used for secondary containment. An operator may use a mixing and loading pad as a secondary containment structure if the mixing and loading pad complies with s. ATCP 33.32 and this section.

ATCP 33.44(9) (9) tank-in-tank. An operator may use a tank-in-tank, without any other secondary containment structure, if all of the following apply:

ATCP 33.44(9)(a) (a) A liquid level monitoring device automatically stops the flow of fertilizer or pesticide into the inner tank when the inner tank is filled to the maximum level allowed under s. ATCP 33.20 (9).

ATCP 33.44(9)(b) (b) The tank-in-tank is equipped to ensure safe and effective detection and recovery of liquid leaked from the inner tank to the outer tank.

ATCP 33.44(9)(c) (c) The operator inspects the tank-in-tank and leak detection system at least monthly.

ATCP 33.44(9)(d) (d) The operator does all of the following in response to a leak:

ATCP 33.44(9)(d)1. 1. Promptly reports the leak to the department.

ATCP 33.44(9)(d)2. 2. Empties the tank-in-tank no later than a date specified by the department in writing.

ATCP 33.44(9)(d)3. 3. Thoroughly cleans the tank-in-tank, and has it repaired by a person certified to perform repairs under API 653, before restoring the tank-in-tank to service.

ATCP 33.44(10) (10) Bladder tank. An operator may use a bladder tank, without any other secondary containment structure, if all of the following apply:

ATCP 33.44(10)(a) (a) The outer steel part of the bladder tank complies with s. ATCP 33.20.

ATCP 33.44(10)(b) (b) The bladder within the tank is at least 40 mils thick.

ATCP 33.44(10)(c) (c) The manufacturer certifies that the bladder is chemically compatible with all materials that may be stored in it, and will withstand normal operational stresses without failing.

ATCP 33.44(10)(d) (d) A qualified installer installs the bladder tank and its appurtenances.

ATCP 33.44(10)(e) (e) All appurtenances that extend through both the bladder and the tank have shut-off valves. The shut-off valves shall be enclosed within a structural steel box that can withstand the maximum hydrostatic head pressure of liquid within the bladder tank. The box shall be readily accessible to the operator, but secured against unauthorized access.

ATCP 33.44(10)(f) (f) A liquid level monitoring device automatically stops the flow of fertilizer or pesticide into the bladder when the bladder is filled to the maximum level allowed under s. ATCP 33.20 (9).

ATCP 33.44(10)(g) (g) There is room for a person to enter the space between the bladder and tank when the bladder is empty.

ATCP 33.44(10)(h) (h) The tank has a soft liner to protect the bladder from contact with the steel interior surface of the tank.

ATCP 33.44(10)(i) (i) The tank is equipped to ensure safe and effective detection and recovery of liquid leaked from the bladder to the tank.

ATCP 33.44(10)(j) (j) The operator inspects the tank and leak detection system at least monthly.

ATCP 33.44(10)(k) (k) The operator does all of the following in response to a leak:

ATCP 33.44(10)(k)1. 1. Promptly reports the leak to the department.

ATCP 33.44(10)(k)2. 2. Empties the bladder and tank no later than a date specified by the department in writing.

ATCP 33.44(10)(k)3. 3. Has the bladder repaired by a qualified person before restoring the bladder tank to service.

ATCP 33.44(10)(k)4. 4. Cleans affected portions of the bladder, soft liner and interior tank surface before restoring the bladder tank to service.

ATCP 33.44 History History: CR 05-108: cr. Register October 2006 No. 610, eff. 11-1-06; CR 14-047: am. (1) (b), r. (2) Register May 2015 No. 713, eff. 6-1-15.

subch. VII of ch. ATCP 33 Subchapter VII — Discharges and Precipitation

ATCP 33.50 ATCP 33.50 Available pump and storage container. An operator shall have, readily available at a storage facility, one or more functional pumps that the operator can use to remove liquid from every mixing and loading pad, sump or secondary containment structure at the storage facility. Each pump shall be plumbed or have a readily available hose connection to a storage container that complies with s. ATCP 33.20, so that recovered liquid can be pumped to the storage container. The pump shall self-activate, or shall be susceptible to immediate activation by the operator, whenever needed. The storage container shall have, at all times, an unused capacity of at least 200 gallons.

ATCP 33.50 History History: CR 05-108: cr. Register October 2006 No. 610, eff. 11-1-06.

ATCP 33.52 ATCP 33.52 Discharges and precipitation.

ATCP 33.52(1) (1) Discharge response; general. The operator of a storage facility shall do all of the following whenever there is a discharge:

ATCP 33.52(1)(a) (a) Take immediate and appropriate action to mitigate any risks that the discharge may pose to public health and the environment.

ATCP 33.52 Note Note: A release of rinsate is considered a discharge. See s. ATCP 33.01 (10) and (28).

ATCP 33.52(1)(b) (b) Report the discharge to the Wisconsin department of natural resources if a report is required under ch. NR 706.

ATCP 33.52 Note Note: If a discharge is fully contained in a mixing and loading pad, sump or secondary containment structure, a discharge report is not required under ch. NR 706 unless the discharge poses an immediate threat to human health.

ATCP 33.52(2) (2) Contained discharge or precipitation. Except as provided in sub. (3), an operator shall recover any unfrozen discharge or unfrozen precipitation that collects in a mixing and loading pad, sump or secondary containment structure. The operator shall recover the unfrozen discharge or precipitation by the end of the first business day in which the collected discharge or precipitation is present in the mixing and loading pad, sump or secondary containment structure. The operator shall take earlier action to recover the collected discharge or precipitation if earlier action is necessary to do any of the following:

ATCP 33.52(2)(a) (a) Maintain the effective discharge containment capacity of a mixing and loading pad, sump or secondary containment structure.

ATCP 33.52(2)(b) (b) Prevent instability of storage containers.

ATCP 33.52(2)(c) (c) Minimize the risk of a discharge to the environment.

ATCP 33.52(2)(d) (d) Prevent vehicles from driving through discharges, rinsate or collected precipitation on the mixing and loading pad.

ATCP 33.52(3) (3) Precipitation contained in fertilizer secondary containment structure. Subsection (2) does not apply to precipitation that has collected in a fertilizer secondary containment structure, provided that the operator uses at least one of the following methods to manage that collected precipitation:

ATCP 33.52(3)(a) (a) The operator may recover all of the collected precipitation, and transfer it to a storage container in the secondary containment structure by the end of the first business day in which the collected precipitation is present in the secondary containment structure.

ATCP 33.52(3)(b) (b) The operator may store the collected precipitation in the fertilizer secondary containment structure until the precipitation can be properly used according to s. ATCP 33.56 or until it evaporates, provided that the operator complies with sub. (4).

ATCP 33.52(3)(c) (c) The operator may apply the collected precipitation to a vegetative filter strip at or adjacent to the storage facility, provided that all of the following apply:

ATCP 33.52(3)(c)1. 1. The operator applies the collected precipitation according to a written plan approved by the department. The plan shall consider the volume of liquid to be applied, the nutrient content of the liquid, the nutrient utilization capacity of the filter strip, and seasonal conditions that may affect that utilization capacity.

ATCP 33.52(3)(c)2. 2. The operator maintains living vegetation on the entire filter strip.

ATCP 33.52(3)(c)3. 3. The operator complies with sub. (4).

ATCP 33.52(3)(d) (d) The operator may discharge the collected precipitation to areas of the storage facility from which there is no potential for direct runoff to waters of the state, provided that all of the following apply:

ATCP 33.52(3)(d)1. 1. The operator complies with sub. (4).

ATCP 33.52(3)(d)2. 2. None of the samples analyzed under sub. (4) (b) contains more than 20 milligrams of the total nitrogen per liter.

ATCP 33.52(3)(e) (e) An operator may discharge the collected precipitation to a public wastewater treatment system, provided the operator has written permission from the authority that operates the system.

ATCP 33.52(3)(f) (f) An operator may discharge the collected precipitation to surface water, via a storm sewer or other conduit, if the operator has written permission from the Wisconsin department of natural resources.

ATCP 33.52(4) (4) Sample testing and follow-up. An operator who uses any of the management methods under sub. (3) (b) to (d) shall do all of the following:

ATCP 33.52(4)(a) (a) Obtain at least one sample of collected precipitation in each of the months of April, June, August and October.

ATCP 33.52(4)(b) (b) Have the samples under par. (a) analyzed, at a laboratory certified by the Wisconsin department of natural resources under ch. NR 149, for nitrate/nitrite-nitrogen and ammonia/ammonium-nitrogen.

ATCP 33.52(4)(c) (c) If any sample analyzed under par. (b) contains more than 200 milligrams of total nitrogen under par. (b) per liter, notify the department and implement a department-approved plan to manage collected precipitation containing more than 200 milligrams of total nitrogen per liter.

ATCP 33.52(4)(d) (d) Keep accurate records of all analytical results under par. (b).

ATCP 33.52 History History: CR 05-108: cr. Register October 2006 No. 610, eff. 11-1-06; CR 08-075: am. (4) (a) Register April 2009 No. 640, eff. 5-1-09; CR 14-047: am. (3) (d) 2. Register May 2015 No. 713, eff. 6-1-15.

ATCP 33.54 ATCP 33.54 Managing recovered discharges, rinsate and collected precipitation.