“Propane” is defined as a three-carbon alkane, normally a gas, but compressible to a transportable liquid. It is derived from other petroleum products during oil or natural gas processing. It is commonly used as a fuel for engines, oxy-gas torches, barbecues, portable stoves and residential central heating. Butane is a hydrocarbon with the formula C4Hl 0, that is, an alkane with four carbon atoms. The term may refer to any of two structural isomers, or to a mixture of them: in the IUPAC nomenclature, however, butane refers only to the unbranched n-butane isomer; the other one being called “methylpropane”. A mixture of propane and butane, used mainly as vehicle fuel, is commonly known as liquefied petroleum gas (LPG or LP gas). It may also contain small amounts of propylene and/or butylene. An odorant such as ethanethiol or thiophene is added so that people can easily smell the gas in case of a leak.

(Ord. 990; Code 2015)

It shall be unlawful after October 4, 2010 to possess or to place a tank greater than a 250 gallon tank within the city limits for the purpose of heating, cooling or providing fuel for any vehicle or dwelling or building, which contains propane, butane, or any liquified petroleum gas as defined above. All tanks which are already placed on or before said date are hereby grand fathered in. When such dwelling, building or lot is sold or otherwise transferred to another person other than the owner of record on said date, then this grandfather provision shall terminate and said building shall be required to find an alternative source of fuel for said dwelling, building or lot. It shall be a Class “C” misdemeanor to violate the terms of this ordinance.

(Ord. 990; Code 2015)