City Manager and City Clerk  >  Utility Billing & Customer Service

City Manager and City Clerk

Utility Billing & Customer Service

Utility Bills - WATER

The Finance Department is responsible for meter reading and billing services for the 5,000 Water utility customers.  The department bills customers every other month, based on location, either East or West of the Downtown Plaza.  Utility billing rates are set annually by the City Council at a Public Hearing during the month of September, with any rate increases effective the following February. 

Questions about billing or service?

Utility billing questions can be directed to City staff as follows:

By Phone - Barbara Cates, Accounting Technician, [707] 933-2237 or [707] 933-2244

In Person - City Hall, No. 1 the Plaza, Sonoma - Monday through Friday 8:00 a.m. to 5:00 p.m. [closed noon - 1:00 p.m.]

In Writing - City of Sonoma Finance Department-Utility Billing, No. 1 the Plaza, Sonoma, CA  95476

By Fax - [707] 933-2246

Service Problems:  For service questions, to report a leak or water quality issues, please call [707] 938-3681 for immediate assistance during normal business hours. 

Customer’s Responsibilities: 
• Bills are due upon receipt and must be paid within 20 days from the billing date.
• Postmarks will not be accepted as the payment receipt date.  Payments received after 4:00 P.M. will be posted the following business day. 
• If you are unable to pay this bill within the required time frame, you must contact the City Water Department during regular service hours prior to the due date.
• A service charge is included on all accounts based on meter size and is a fixed charge.  This fee covers costs of maintaining the City's water system.
• Additional fees:
  Delinquent Fee  $20
  Turnoff for non-payment $85  Returned checks  $24
• Customers are responsible for their account until the City is notified to stop service.  Until such notice has been made, the premises shall be deemed occupied by the customer and late fees and payment liability continues. [See Termination of Service below]
• Water meters are the property of the City. An 18” meter box clearance must be maintained on each side for City access.


Customers must complete and sign a Utilities Application-Connect Form.  This form may be obtained at City Hall, No. 1, the Plaza, Sonoma, CA  95476 or by calling [707] 938-3681.  The completed forms may be returned by mail or in person.  Fax or electronic transmittal is not acceptible due to the need for an original signature on the application.

New residential service customers [includes renters, agents, & lessees] are required to make a $150 deposit along with the application.  The Deposit may be refunded in two years [with good payment history].  New service can normally be initiated within 24 hours of receipt of signed application and deposit.  The City does not accept credit cards at this time.


Customers wishing to disconnect service should call the Water Department at [707] 933-2244 or [707] 938-3681 at least 24 hours in advance.  You may also e-mail notice of termination to:  Barbara Cates, Accounting Technician,  Please include all information including termination date, location address, forwarding address and telephone number where you may be contacted in case of questions.  Following disconnection of service, a final bill will be sent out.


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Contact Information for the City Water Department: 

Office Address: City Hall, No. 1 the Plaza, Sonoma
       707-933-2244  Water Department
       707-933-2237  Water Department

       707-938-3681  City Hall 
Fax:   707-933-2246 

E-mail:  Barbara Cates, Accounting Technician,

After hours emergency  707-996-3601   Police Department. Dispatch [handled through the Sonoma County Sheriff's Office] will contact a City utility staff member to report the emergency. 


Water customers located in the unincorporated areas of Sonoma Valley [outside the City limits] should contact Valley of the Moon Water District, 19039 Bay Street, El Verano, CA @ [707] 996-1037 for water services.

The City of Sonoma is not responsible for sewer services within the City Limits.  For sewer connection hook-up or service information please contact the Sonoma County Sanitation Department @ [707] 521-1890.


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