Section 93.680. Alternative motor fuels.

 

(1)   Application. All storage or dispensing systems for fuel consisting of more than 10 percent ethanol by volume shall follow the requirements of this section.

(2)   Material compatibility. 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:

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

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

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

(3)   General requirements.

(a) Tank cleaning .

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.

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

(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.

(c) Equipment requirements .

1. `Listed equipment.' Equipment used for dispensing ethanol-blended motor fuel shall be listed or shall be recognized by the manufacturer as being compatible with ethanol-blended fuel, except where otherwise approved in writing by the department.

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.

3. `In-line filters.' A 1- or 2-micron in-line filter shall be used for dispensing ethanol-based fuel.

4. `Lined tanks.' Tanks with linings regulated under s. ATCP 93.530 may not be used to store ethanol-blended fuels.

(4)   Notification procedures.

(a) Before commencing normal fueling operations using ethanol-blended fuel, the operator shall notify the department's district petroleum products inspection office.

(b) A certified installer or professional engineer shall complete part I of the department's alternative fuel installation/conversion application form (TR-WM-126 Alternative Fuels) and submit it to the department as part of the plan review submittal.

(c) Before commencing normal fueling operations using ethanol-blended fuel, the operator shall complete part II of the department's alternative fuel installation/conversion application form (TR-WM-126 Alternative Fuels) and provide the completed form to the certified tank system inspector performing the pre-operational inspection.

CR 07-029 : cr. Register November 2008 No. 635 , eff. 2-1-09; correction in (3) (b), (c) 4. made under s. 13.92 (4) (b) 7. , Stats., Register December 2011 No. 672 ; corrections in (3) (b), (c) 4. made under s. 13.92 (4) (b) 7. , Stats., Register October 2013 No. 694 ; CR 16-012 : am. (4) (b), (c) Register august 2016 No. 728, eff. 9-1-16.

Note

Alternative motor fuels include ethanol blends greater than 10 percent by volume, and biodiesel blends greater than 5 percent by volume. Microsoft Windows NT 6.1.7601 Service Pack 1 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. Microsoft Windows NT 6.1.7601 Service Pack 1 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. Microsoft Windows NT 6.1.7601 Service Pack 1 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. Microsoft Windows NT 6.1.7601 Service Pack 1 See chapter ATCP 94 for signage requirements for ethanol-blended fuels. Microsoft Windows NT 6.1.7601 Service Pack 1 See the department's website at https://datcp.wi.gov/Pages/Programs_Services/PetroleumHazStorageTanks.aspx . Microsoft Windows NT 6.1.7601 Service Pack 1 Within a first class city, the provisions in par. (b) may be administered by that city instead of the department, as authorized in sections ATCP 93.020 (8) and 93.110 (3) and (4) . As of February 1, 2009, only the City of Milwaukee had become a first class city. Microsoft Windows NT 6.1.7601 Service Pack 1 Form TR-WM-126 Alternative Fuels — Storage Tank Alternative Fuel Installation/Conversion Application is available from the Bureau of Weights and Measures, PO Box 8911, Madison, WI 53708-8911, or at telephone [phone], or at https://datcp.wi.gov/Pages/Programs_Services/PetroleumHazStorageTanks.aspx . Microsoft Windows NT 6.1.7601 Service Pack 1 Plan review is required in section ATCP 93.100 for facilities converted to store and dispense ethanol-based fuels. Microsoft Windows NT 6.1.7601 Service Pack 1