cial ▁aspects ▁ ▁Tar iffs ▁▁ ▁R ural ▁areas . ▁Water ▁tar iffs ▁in ▁rural ▁areas ▁are ▁usually ▁measured ▁by ▁j er ry can ▁( bucket ) ▁for ▁water ▁sold ▁at ▁water ▁k ios ks ▁or ▁public ▁stand posts . ▁In ▁rural ▁water ▁systems ▁managed ▁by ▁private ▁operators ▁in ▁ 2 0 0 4 ▁the ▁water ▁tar iffs ▁per ▁j er ry can ▁of ▁ 2 0 ▁lit ers ▁varied ▁between ▁ 1 4 ▁and ▁ 2 5 ▁R wand an ▁Franc ▁( R WF ), ▁equivalent ▁to ▁about ▁ 2 . 5 ▁to ▁ 4 . 5 ▁US ▁c ents ▁per ▁ger ry can ▁or ▁US $ 1 . 2 5 ▁– ▁ 2 . 2 5 ▁per ▁cub ic ▁meter , ▁according ▁to ▁the ▁Util ities ▁Reg ul atory ▁Agency . ▁ ▁However , ▁according ▁to ▁a ▁World ▁Bank ▁report ▁of ▁ 2 0 0 8 ▁tar iffs ▁range ▁from ▁only ▁R WF ▁ 2 . 5 ▁( gravity - f ed ▁systems ) ▁to ▁R WF ▁ 1 5 ▁( p ump ing ▁systems ) ▁per ▁j er ry can ▁( equ ivalent ▁to ▁US $ 0 . 2 5 ▁to ▁US $ 1 . 4 0 / m 3 ). ▁In ▁addition , ▁and ▁to ▁alle vi ate ▁the ▁financial ▁bur den ▁for ▁the ▁poor est ▁part ▁of ▁the ▁rural ▁population , ▁the ▁districts ▁keep ▁a ▁list ▁of ▁vulner able ▁households ▁( wid ows , ▁poor ▁single - parent ▁households ), ▁who ▁get ▁free ▁access ▁to ▁water ▁points .