▁ 1 9 9 4 , ▁is ▁based ▁on ▁the ▁following ▁key ▁principles : ▁▁ ▁The ▁only ▁support ▁from ▁the ▁State ▁is ▁in ▁the ▁form ▁of ▁on - l ending ▁of ▁don or ' s ▁finan cing ; ▁there ▁are ▁no ▁on going ▁operating ▁subs id ies . ▁ ▁There ▁will ▁be ▁no ▁excess ive ▁increases ▁in ▁water ▁tar iffs ; ▁tar iff ▁increases ▁are ▁grad ual ▁on ▁the ▁basis ▁of ▁a ▁financial ▁model . ▁ ▁There ▁is ▁a ▁social ▁tar iff ▁( the ▁subs id ized ▁first ▁block ▁of ▁the ▁tar iff ▁for ▁consumption ▁under ▁ 1 0 ▁m ³ ▁per ▁month ) ▁in ▁order ▁to ▁ensure ▁afford ability . ▁ ▁Tar iffs ▁and ▁cost ▁recovery ▁▁ ▁Urban ▁water ▁tar iffs ▁S DE ▁applies ▁an ▁increasing - block ▁tar iff , ▁which ▁includes ▁three ▁blocks : ▁▁ ▁a ▁social ▁tar iff ▁for ▁low - consum ption ▁users ▁with ▁house ▁connections , ▁defined ▁as ▁those ▁using ▁less ▁than ▁ 2 0 ▁cub ic ▁meters ▁every ▁ 6 0 ▁days , ▁which ▁was ▁ 1 9 1 ▁FC FA / m ³ ▁in ▁ 2 0 0 8 ; ▁ ▁a ▁regular ▁tar iff ▁for ▁consumption ▁between ▁ 2 0 ▁and ▁ 4 0 ▁cub ic ▁meters ▁( former ly ▁ 2 0 - 1 0 0 ▁cub ic ▁meters ), ▁which ▁was ▁ 6 3 0 ▁FC FA / m ³ ▁in ▁ 2 0 0 8 ; ▁and ▁ ▁a ▁" d iss u as ive " ▁rate ▁for ▁any ▁consumption ▁over