My goal -- on the wholesale level -- is to move a FIXED AMOUNT of water from those who own it to those who value it (sometimes the same person!). At the retail level, my goal is to ensure that everyone gets a "human right" allocation of water and that those who use more, pay MUCH more for their discretionary consumption of water-as-commodity.
Unfortunately, my retail scheme doesn't address businesses because it's based on per-capita blocks (e.g., the free block is 75gal/capita/day and later blocks are much more expensive), and businesses have widely varying water needs that do not reflect sales revenue, employees, location or customer numbers.
So, we need a pricing scheme that gives businesses the incentive to use as little water as they can get by with BUT also recognizes that some businesses are more water-intensive than others -- restaurant versus office, for example.
So, here's the way to do that:
- Every business pays a fixed monthly charge based on the size of its water meter. "Meter" basically means the diameter of the pipe for incoming water, i.e., 1/2, 3/4, 1, 2, or 3 inches.
- Given the size of the pipe, the business then gets a cheap block of water that's bigger if the meter is bigger. After that cheap block, the next block is more expensive, and so on...
Bottom Line: Encourage conservation by charging more, but make sure that "more" fits the scale of the enterprise.