Wastewater Rates

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Wastewater Rates Change July 1

New wastewater rates take effect July 1, 2017. The notices linked below, which were mailed to all wastewater customers, outline the changes. The District used rate studies to analyze the cost of providing wastewater service for various types of customers.

If you have questions, please contact:
DSRSD Administrative Services Manager Carol Atwood
(925) 875-2270 atwood@dsrsd.com


Where can I find how much I pay for sewer service?

DSRSD bills single-family dwellings for wastewater service on the owner’s annual property tax bill. The service charge will be listed as DSRSD SEWER SVC on the property tax bill as follows:
For Alameda County residents, look under Fixed Charges and/or Special Assessments.

For Contra Costa County residents, look under SPECIAL TAXES & ASSESSMENTS.

Newly constructed single-family dwellings may be billed bimonthly until the next property tax bill. All other customers are billed bimonthly.

Current Rates

Rates did not change on July 1, 2016. The rates will remain the same through June 30, 2017.


Residential Rates

Single Family Dwellings

annual rate
effective july 1, 2015
equiv. bimonthly rate
effective july 1, 2015
Single family home or townhouse $382.38 $63.73
Condominium   260.34   43.39
Duplex   764.76 127.46
Single family home with accessory dwelling units   601.92


Multi-Unit Dwellings

bimonthly rate
july 1, 2015
Apartments $35.69 per dwelling unit $36.59 per dwelling unit

Commercial and Institutional Rates

Businesses and Institutions

Please contact Customer Service to determine the class that applies to your enterprise: (925) 828-8524.

rate per cCF*
july 1, 2015
 Bakery $6.13
 Laundry   3.76
 Restaurant (full service)   5.00
 Restaurant (fast food)   4.45
 Auto Steam Cleaning   7.94
 Market with Garbage Disposal   6.39
 Mortuary   6.77
 School (submetered to measure outdoor use)   2.91
 School (not submetered)**   2.37
 Commercial All Others   3.25
 Institutional All Others   3.42

*1 ccf = 100 cubic feet (748 gallons)
**Quantity is determined by the amount of potable water purchased from DSRSD minus the amount used outdoors

Industrial Rates

Charges for significant industrial customers are not estimated by customer class, but calculated individually according to the load that their wastewater places on the Regional Wastewater Treatment Facility (regional charges) and the wastewater collection system (local charges). The customer’s load is measured by calculating the amount of wastewater (“flow,” typically measured by the amount of water purchased from DSRSD less the amount used outdoors), the biochemical oxygen demand (“BOD,” a measure of the amount of organic material in the wastewater), and the quantity of suspended solids (SS) that must be removed.

Customers will see regional and local charges for “loading” and “demand” on their bimonthly bills. Loading charges are based on the quantity and composition of the customer’s recorded discharge for the billing period. Demand charges are based on capacity that the customer has reserved in the wastewater treatment system. If this capacity is exceeded, higher demand charges will apply. See District Code Section 5.30.020 for more information.

Industrial Customers

description billing unit* effective
july 1, 2015
Regional Loading Charges (for treatment)

Demand (flow)

mg $1,382.06

Biochemical Oxygen Demand (BOD)

Klb      452.43

Suspended Solids (SS)

Klb      224.62
Regional Demand Charges (for treatment)  

Demand (flow)

53,851.43 55,214.96

Biochemical Oxygen Demand (BOD)

lb/day        18.09

Suspended Solids (SS)

lb/day          8.98


each       14.79        15.16
Loading Charges (for collection)  

Loading (BOD and SS)

mg      828.88

Demand (flow)

mgd 52,977.04

*mg = million gallons                mgd = million gallons per day
 Klb = thousand pounds             lb/day = pounds per day 

In addition to the service charges listed above, customers participating in the District’s Industrial Pretreatment Program pay fees that reflect the DSRSD staff effort involved in permitting, monitoring, and lab analyses. All industrial customers complete an Industrial Waste Discharge Permit Application to determine whether they are required to participate in the program. Contact the Senior Environmental Compliance Inspector at (925) 875-2335 regarding industrial wastewater rates, the Pretreatment Program, or the permit.

Rate Changes

DSRSD has proposed changes to wastewater rates that, if adopted, will take effect July 1, 2017. Please scroll to top of page for more information.

The District bases its wastewater rates on the cost of providing service to each class of customer and rates usually increase each year on July 1; however, after an evaluation, rates did not change in 2016. The DSRSD Board of Directors may change rates at other times as a result of rate studies or other factors. Customers are notified when rate changes are proposed as required by Proposition 218. Customers are encouraged into attend public hearings regarding rate changes and submit written comments. For more information on your rights to protest rate changes, see:


Revised on May 15, 2017

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