ATCP 93.680 Note 4. Flexible connectors.

ATCP 93.680 Note 5. Drop tube.

ATCP 93.680 Note 6. Spill and overfill prevention equipment.

ATCP 93.680 Note 7. Submersible turbine pump and components.

ATCP 93.680 Note 8. Sealants (including pipe dope and thread sealant), fittings, gaskets, o-rings, bushings, couplings, and boots.

ATCP 93.680 Note 9. Containment sumps (including submersible turbine sumps and under dispenser containment).

ATCP 93.680 Note 10. Leak and release detection floats, sensors, and probes.

ATCP 93.680 Note 11. Fill and riser caps.

ATCP 93.680 Note 12. Product shear valve.

ATCP 93.680(2) (2) Material compatibility for ethanol blends. Equipment used to store or dispense fuel consisting of more than 10 percent ethanol by volume may not contain or consist of any of the following materials:

ATCP 93.680(2)(a) (a) Metals. Zinc, lead, aluminum, or alloys containing these metals such as brass or terne.

ATCP 93.680 Note Note: Terne-plated steel and lead-based solder are commonly used in equipment that handles gasoline. These materials will dissolve when in contact with high concentrations of ethanol.

ATCP 93.680(2)(b) (b) Natural materials. Cork, leather, or natural rubber.

ATCP 93.680(2)(c) (c) Polymers. Polyurethane, polyvinyl chloride, polyamides, or methyl-methacrylate plastics.

ATCP 93.680 Note Note: Materials that have been shown to be generally compatible with high concentrations of ethanol include unplated steel, stainless steel, black iron, bronze, Neoprene rubber, Buna-N, polypropylene, nitrile, Viton, Teflon, thermoset reinforced fiberglass and thermoplastic piping material.

ATCP 93.680(3) (3) General requirements for ethanol blends.

ATCP 93.680(3)(a) (a) Tank cleaning.

ATCP 93.680(3)(a)1. 1. If another type of fuel was stored in the tank, the tank shall be cleaned in accordance with API 2015 or another method approved by the department before introducing the ethanol-blended fuel.

ATCP 93.680 Note Note: See s. ATCP 93.230 (15) for related cleaning criteria when changing the type of liquid stored in a tank.

ATCP 93.680(3)(a)2. 2. All cleaning work shall be performed by a certified tank cleaner unless specifically approved by the department based on an alternate cleaning method.

ATCP 93.680 Note Note: Most metal storage tanks and pipe are compatible with ethanol. However, some fiberglass storage tank systems manufactured before 1992 might not be compatible with higher levels of ethanol. The tank manufacturer and installation contractor should be consulted for additional information on the reuse of underground storage tanks.

ATCP 93.680(3)(a)3. 3. Denatured alcohol (commonly known as E98) may not be stored in underground storage tanks due to flammability issues.

ATCP 93.680(3)(b) (b) Tightness testing. A precision tightness test shall be performed on the tank and piping in accordance with s. ATCP 93.515 (4) before placing the tank system back into service.

ATCP 93.680(3)(c) (c) Equipment requirements.

ATCP 93.680(3)(c)1. 1. ‘Approved equipment.’ Equipment or components used for storing or dispensing ethanol-blended motor fuel shall be listed or shall be verified by the manufacturer as being compatible with ethanol-blended fuel, except where otherwise approved in writing by the department.

ATCP 93.680 Note Note: The department and the EPA accept use of the criteria in API 1626, as adopted in s. ATCP 93.200, to demonstrate compatibility for UST systems storing ethanol blends under this section.

ATCP 93.680(3)(c)2. 2. ‘Dispenser nozzles and hoses.’ Dispensers that are installed on or after February 1, 2009, shall use a separate fueling nozzle and hose for dispensing ethanol-blended motor fuels of more than 10 percent ethanol by volume.

ATCP 93.680 Note Note: See ch. ATCP 94 for signage requirements for ethanol-blended fuels.

ATCP 93.680(3)(c)3. 3. ‘In-line filters.’ A 1- or 2-micron in-line filter shall be used for dispensing ethanol-based fuel.