reading water and sewer bill

[taranwan.livejournal.com]

Hi, I've got some questions about the Somerville water and sewer bill, that I'm hoping someone can help me out.  Not the meter, but the bill. 

Specifically, I'm trying to find out:

What's the difference, if any, between what's labeled as "consumption" and "usage?"  Also, how do I read and use the usage tier chart?

Comments

[narya.livejournal.com]

The tier chart is probably trying to tell you that the first X units of usage are $x/unit, then the next Y units of usage are $y per unit, etc. I don't have one in front of me though.

[boblothrope.livejournal.com]

Tiered water pricing is meant to discourage people from using more than their share of water. But it screws people who live in multi-unit buildings (rental or condo) who share a single water meter.

It's analogous to charging higher tolls for carpool vehicles.