Potable water service charges are comprised of the following elements:

Readiness to Serve Charge (monthly) is a flat fee, which recovers a portion of expenses incurred in maintaining the distribution system, providing fire protection and processing customer activity. 

The readiness to serve charge is based on the size of the meter serving the property (Refer to the chart below.)

Commodity Charges recovers the cost of acquiring and delivering water to each customer class.  The commodity charge is based on the volume of water delivered to a customer during a monthly billing period. The commodity charge is expressed in "billing units" of 100 cubic feet; a single billing unit is equal to 748 gallons.  (Refer to the charts below.) The below tiers are unique to each customer and are determined based on a number of different factors.  More information on Water Budgets can be found here.

Single- / Multi-Family Residential Commodity Charge

These rates include a $0.41 pass through charge by the Metropolitan Water District of Southern California which will show up on a customer’s bill

Commercial Commodity Charge

These rates include a $0.41 pass through charge by the Metropolitan Water District of Southern California which will show up on a customer’s bill

Irrigation Commodity Charge
Applies only to service connections used exclusively for irrigation.

These rates include a $0.41 pass through charge by the Metropolitan Water District of Southern California which will show up on a customer’s bill

Elevation Charges cover the additional costs of infrastructure and power to pump water to higher locations, billing differs by zone, with customers at higher elevations paying higher costs per unit of water. Most district customers are located in zones 1 and 2. Elevation charges are determined by the highest elevation the water is pumped to prior to reaching the residence.   Potable Water Elevation Pumping Zone Map 2016 - pdf (2 MB)

Zone 1, includes all domestic water customers receiving water that does not require pumping above a hydraulic gradient of 1235 feet.
Zone 2, includes all domestic water customers receiving water that requires pumping to elevations between 1235 and 1700 feet.
Zone 3, includes all domestic water customers receiving water that requires pumping to elevations between 1700 and 2200 feet; includes all domestic water customers who are served water purchased by the District from sources other than the Metropolitan Water District of Southern California.
Zone 4, includes all domestic water customers receiving water that requires pumping to elevations greater than 2200 feet.

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