Hmm, for an international perspective, looking at my last water bill, for 3 months, Sewerage Supply was $AU126.36 ( $505.41 p.a.), Water supply, $AU25.64 ($102.56 p.a.), $AU2.64 per kL, however this appears to be dependent on usage, and is $5.29 per kL after .548kL usage per day according to the appropriate website.