>That's already in the works at LADWP, which could go from a two-tier system to four tiers. Marty Adams of the DWP told me that in the case of the highest user in Bel-Air, the $90,000 annual cost of water would rise to about $125,000.
Instead of tiered, there could be a progressive multiplier, e.g. a multiplier equal to the gallons used: 1 gallon = $1 ; 10 gallons = $100; 100 gallons = $10,000.
Water use squared doesn't really make sense as a charging scheme. There should be a per-gallon rate that everyone things is plenty, and that (or a small multiple) should be the max.
What does "multiplier system" mean? If you're multiplying by gallons, then you're measuring water use squared. If you're multiplying by fixed numbers, that's just a complicated way of doing tiers.
