Water In Retail Tanks And Disenser Filters

(1) Water in Retail Storage Tanks containing Gasoline-Alcohol Blends, Biodiesel, Biodiesel Blends, Ethanol Flex Fuel, Aviation Gas, and Aviation Turbine Fuel - no water phase greater than 6 millimeters (1/4 in) as determined by an appropriate detection paste, is allowed to accumulate in any tank utilized in the storage of gasoline-alcohol blend, biodiesel, biodiesel blends, ethanol-flex fuel, aviation gasoline, and aviation turbine fuel. (2) Water in Retail Storage Tanks Containing Gasoline, Diesel, and Other Fuels - water shall not exceed 38 millimeters (1.5 in) in depth when measured with water indicating paste in any tank utilized in the storage of diesel, gasoline, gasoline-ether blends, fuel oils, and kerosene sold at retail. (3) Dispenser Filters (a) All gasoline, gasoline-oxygenate blends, Ethanol Flex Fuel, and M85 methanol dispensers shall have a 10 micron or smaller nominal pore-sized filter. All dispensers must be compliant with this requirement by July 1, 2015. (b) All kerosene, diesel, biodiesel, and biodiesel blend dispensers shall have a 30 micron or smaller nominal pore-sized filter. All dispensers must be compliant with this requirement by July 1, 2015. (c) Fuel delivery of aviation turbine fuel and aviation gasoline into aircraft shall be filtered through a fuel filter/separator conforming to API 1581, “Specification and Qualification Procedures for Aviation Jet Fuel Filter/Separators” and ATA Specification 103 “Standard for Jet Fuel Quality Control at Airports”, as applicable. (d) All Aviation Gasoline dispensing systems shall be equipped as follows: 1. At inlets to storage and on fueller loading racks (and hydrant delivery lines), a 5 micron (nominal) or finer Microfilter meeting EI 1590, or a filter water separator. 2. Where receipts are by gravity into underground tankage, a 100 micron mesh strainer.