Tiers 1, 2 and 3 are the different rates charged for the amount of metered water consumed (measured by units). For all single family residential accounts, units 1 through 10 are billed at a lower rate to encourage water conservation and to minimize the rate increase impact to low water consumption customers. Units 11 through 20 are billed at a higher rate in Tier 2. Units above 21 are billed at the highest rate in Tier 3. All other accounts (apartments, multi-units and commercial accounts) are billed at a flat rate per unit consumed.
View the Current Rates for Water and Wastewater (PDF).