2A protected tank is a listed and labeled system that consists of a primary tank along with integral secondary containment which provides protection from physical damage and limits heat transfer from a high intensity liquid pool fire. Systems listed as complying with UL 2085 or an equivalent standard are considered protected tanks.
3A fire-resistant tank is a listed and labeled primary tank with or without integral secondary containment that provides protection from heat transfer from a high intensity liquid pool fire. Systems listed as complying with UL 2080 or an equivalent standard are considered fire-resistant tanks.
Diking or a similar system shall be used to provide secondary containment for aboveground tanks in accordance with NFPA 30 section 22.11.1 or 22.11.2. and s. ATCP 93.420
When any underground piping is installed as part of a new tank system or when 50 percent or more of a run is replaced, the piping shall be provided with approved secondary containment with approved leak detection.
The material used for both the primary and secondary containment shall be liquid- and vapor-tight.
Aboveground motor fuel tanks shall be protected from vehicle impact in accordance with s. ATCP 93.430
All aboveground piping shall be of steel and be coated or otherwise protected to inhibit corrosion.
Piping shall be supported against impact, vibration, expansion, and contraction.
Collision protection shall be provided on all sides of aboveground piping not protected by a structure, building or dike wall.
Any underground piping shall comply with the leak detection requirements for pressurized piping specified in s. ATCP 93.510 (4)
A check valve shall be installed in the piping at a point where connection and disconnection is made for tank vehicle unloading. The valve shall be protected from tampering.
Tanks shall be provided with bottom loading or a fill pipe that terminates within 6 inches of the bottom of the tank.
Tanks that are filled via handheld nozzles shall be constantly attended during product delivery and shall be provided with overfill prevention equipment which notifies the person filling the tank with either an audible or a visual signal that the liquid level has reached 90 percent of the tank's capacity.
Tanks that are filled by means of a tight connection between the delivery hose and the fill pipe or a similar device acceptable to the department shall be equipped with overfill prevention equipment that will operate as follows, unless approved otherwise in writing by the department:
Alert the transfer operator when the tank is no more than 90 percent full by triggering an audible and visual high-level alarm.
Automatically shut off the flow of liquid into the tank when the tank is no more than 95 percent full.
Leak detection for aboveground tanks.
Leak detection for aboveground tanks shall be provided in accordance with one of the following:
Where dikes are provided, a minimum of 2 feet shall be provided between any new tank and the toe of the dike walls, and a minimum of 3 inches shall be provided between the bottom of any new tank and the dike floor, to allow for visual inspection of the exterior tank surface, except as provided in subd. 2.
or as otherwise approved by the department.
Where double-walled tanks are used or where clearances for visual inspection of the primary containment surface are not provided as specified in subd. 1.
, interstitial monitoring shall be provided as specified in s. ATCP 93.515 (7)
Aboveground tanks shall be provided with enclosures in accordance with sub. (7)
Operations involving fixed-tank fuel dispensing facilities.
Operations involving fixed-tank fuel dispensing facilities shall follow the requirements in NFPA 30, NFPA 30A, and all of the following:
The area around an aboveground motor vehicle fuel tank and its secondary containment shall be secured by a 6-foot high noncombustible building or by a 6-foot high noncombustible fence with a gate, except where exempted under par. (b)
If the property on which the tanks are located has a perimeter security fence, additional enclosure of the tank system is not required.
For fleet fuel dispensing tank systems that have an aggregate tank capacity of 1,320 gallons or less, enclosure of the tank by one of the structures listed in par. (a)
is not required if all of the following conditions are met:
For Class I liquids, all normal vents on the primary tank terminate at least 12 feet above grade.
ATCP 93.615 Note
Federal Spill Prevention Control and Countermeasure regulations in 40 CFR 112
may require fencing for tanks with capacities of more than 1,320 gallons.
Buildings or fences under this subsection shall be made entirely of noncombustible materials and have a minimum of one exit in compliance with chs. SPS 361
Buildings or fences may not be supported by the tanks they enclose.
Buildings or fenced enclosures may not be used for occupancy, storage, or any other use unless specifically allowed under chs. SPS 361
Fences surrounding tanks shall be of chain-link design or other open fencing approved by the department.
ATCP 93.615 History
History: CR 17-092: cr. Register October 2019 No. 766, eff. 11-1-19; correction in (3) (b) 6. made under s. 35.17, Stats., Register October 2019 No. 766. ATCP 93.620
ATCP 93.620 Public access motor vehicle fueling operations. ATCP 93.620(1)(a)(a)
Public access fueling operations shall follow the operational requirements of NFPA 30A and this section.
When the product dispensed from a tank system is changed from a Class I liquid to a Class II or III liquid, the department's corresponding district inspection office shall be notified, and the new product shall be tested and approved before being dispensed.
ATCP 93.620 Note
Under ch. ATCP 94
, similar notification and approval is required for changing from storing a Class II or III liquid to storing a Class I liquid.
Equipment or devices not required for, or not integral to, the fueling operation, such as vending machines or automated teller machines, may only be installed outside of the fuel dispensing area.
No Class I liquid, other than fuel being dispensed, may be located within 20 feet of any motor fuel dispenser.
A person shall be at least 14 years old to dispense fuel into the fuel tank of a motor vehicle.
Combustible merchandise placed within 20 feet of a fuel dispenser shall meet all of the following requirements:
No combustible merchandise, including pallets and packaging material, may be within 3 feet horizontally of the dispenser cabinet.
The height of the merchandise display, including pallets and packaging material, may not exceed 3 feet above grade.
ATCP 93.620 Note
Note: Trash receptacles and window washing containers that are for public use are not considered merchandise under this section. Window washing solution in containers for sale to the public would be considered merchandise under this section.
A means of two-way voice communication between the customer and attendant shall be maintained while the facility is open to the public and an attendant is on duty.
No vehicle may be fueled from an aboveground storage tank while the storage tank is being filled.
ATCP 93.620 History
History: CR 17-092: cr. Register October 2019 No. 766, eff. 11-1-19; correction in (2) (a) made under s. 35.17, Stats., Register October 2019 No. 766. ATCP 93.630
ATCP 93.630 Fuel storage and dispensing at farms and construction projects. ATCP 93.630(1)(a)(a)
This section applies to aboveground storage tank systems for fueling operations at a farm premises or construction project. Such tanks shall comply with NFPA 30A chapter 13 and this section.
Limitations on location and type of use.
The tanks may not be used for fueling vehicles unless the vehicles are dedicated to the operation of the farm premises or construction project.
The tanks shall be constructed in accordance with NFPA 30A chapter 13 and this section.
There is no minimum required setback between the tank and the dispenser.
Operations involving tanks.
Operations shall be in accordance with NFPA 30A chapter 13.
The tank system shall be equipped so the hose, hanger, or outlet valve can be locked to prevent tampering.
For farming operations using a tank without secondary containment, the tank and the fueling operation shall be placed outside of a building and at least 40 feet from the near side of a public way and from a building or structure used for any of the following purposes:
Storage of hay or similar crops susceptible to spontaneous combustion if stored in a combustible building or structure.
For all operations within the scope of this section using a tank without secondary containment, other than farming, the tank and the fueling operation shall be placed outside and at least 40 feet from the near side of a public way and from any important building or structure.
Operations using secondary containment tanks.
All operations within the scope of this section using a tank with secondary containment shall follow the setback requirements in Table 93.630.
A tank that supplies a combustion engine in an irrigation system shall be located on land or on a pier of the solid-fill type.
The tank shall be mounted to maintain stability against vibration, wind, water-saturated ground, and floodwater and shall be liquid-tight.
Where a tank is at an elevation that may produce a gravity head-pressure or siphon pressure, the tank outlet shall be equipped with a device, such as a normally closed solenoid valve, which will prevent gravity or siphon flow from the tank to the engine. This device shall be located adjacent to and downstream of the tank outlet valve. The device shall be installed and adjusted so that liquid cannot flow by gravity or siphon from the tank to the engine if the fuel piping, tubing, or hose system fails when the engine is not in use.