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Municipal Utility Services (MUS)

The City of Santa Ana Treasury Division administers Municipal Utility Services (MUS). The MUS office is open Monday through Thursday 7:30 am to 5:30 pm and on alternating Fridays from 8:00 am to 5:00 pm. The MUS office is closed every other Friday and legal holidays. The office telephone lines are open from 8:00 am to 5:00 pm. To contact the Municipal Utility Services office during office hours please call (714) 647-5454.  For emergency water service outside of normal business hours please call (714) 953-8026.

MUS includes basic service charge, water consumption, utility users’ tax, refuse, sanitation, and sewer service charge.

Don't want to register to create an account at this time? That's ok.  Click on the link above to submit a one-time payment.

Create an online MUS account to set up options such as Auto Pay, Make a Payment, View Billing and Payment History.

If you have already created an online MUS account then you can log in here.

How to Find Your Checking Account Information

Check

  • Please verify that you are using the correct Routing Number and Checking Account Number for payment. Por favor verifique que está usando el Número de transito bancario y el Número de cuenta correcto.
  • If the electronic check payment is returned for any reason, then you will be charged a Return Check Fee of $25.00 for the first return or $35.00 for subsequent returns. Si el pago electrónico es rechazado por cualquier razón entonces se cobrara un cargo de $25.00 por el primer cheque devuelto y $35.00 por cada subsiguiente cheque devuelto.

Frequently Asked Questions

If You Are a Property Owner

You may apply for establishment of services in person, by email, or online.  The following are required to establish a new account:

  • Proof Of Ownership (Recorded Grant Deed, Final Escrow Closing Statement, Final Settlement Statement,  or Recorded Trust Deed)
  • Identification (California Driver’s License, California Identification Card, Matricula Consular, US Passport, US Military ID)**
  • Social Security Number, Federal Tax ID number or Individual Tax Identification Number**
  • Telephone Number
  • Mailing Address

**A deposit may be required if no State issued identification or U.S. Federal identification is provided.

If You Are a Tenant

You may apply for establishment of services in person, by email, or online.  The current property owner must have established a MUS account before a tenant can sign up for service.  The following are required to establish a new tenant account:

  • Proof of tenancy (Signed Rental Agreement, Signed Lease Agreement, or Signed Commercial Lease)
  • Valid Identification (California Driver’s License, California Identification Card, Matricula Consular, US Passport)**
  • Social Security Number, Federal Tax ID number or Individual Tax Identification Number**
  • Telephone Number
  • Mailing Address
  • Deposit – All new tenant accounts require a deposit to be paid.  The deposit amount is based on the size of the water meter servicing the property

**A deposit may be required if no State issued identification or U.S. Federal identification is provided.

Document Submission

You may submit the documents listed above:

Payment for Municipal Utility Services can be mailed to:

City of Santa Ana
Finance Department – Treasury Division M-13
20 Civic Center Plaza
PO Box 1964
Santa Ana CA, 92702-1964

Other Payment Options:

  • One-time online payment: https://www.invoicecloud.com/santaanaca
  • Automated telephone system: (714) 647-5454
  • Logging into a registered online account: https://mywater.santa-ana.org/app/
  • In-person at Santa Ana City Hall, 20 Civic Center Plaza
    • City Cashier located on the 1st floor of City Hall
    • City Kiosk located next to City Hall’s primary entrance
    • Drop-off of a check or money order at the Deposit Box located next to City Kiosk near City Hall’s primary entrance

Property owners and tenants may call 714-647-5454 to speak with a Customer Service Representative and request that the MUS account be closed.  The requests may also be sent by email to mus.info@santa-ana.org.  The service address, reason for closing the account, name of the person making the request, final mailing address and contact telephone number must be provided with all emailed requests.  You may also submit a request to close your account if you have created an online MUS account.  You must log into your account and click on the Forms tab and choose Move Out Application Form.

Property owners may be held responsible to pay all accrued charges regardless of occupancy or use for the period that the property was legally owned.   If a deposit was made by either a tenant or a property owner when the MUS account was established then the deposit will be automatically applied to the final bill of the account that is being closed.

A final bill will be mailed or emailed depending on the accounting settings established by the account holder prior to closing the account.

If a deposit was paid to establish a MUS account then the deposit may remain on the account until the account is closed.  The deposit will then be applied automatically to the final bill.  If any funds are left after applying the deposit then a refund check will automatically be generated for the remaining amount of the deposit.

The account holder may also request for a refund of the deposit paid to establish an account if the account is in good standing, if no late payments have been made over the last year, the account has been open for over a year and all documentation has been received.  If a valid identification or social security number is not on file then the request for a refund may be rejected.

All request for deposit refund must be made in writing.  The request may be mailed to:

City of Santa Ana
Municipal Utility Services, M-14

20 Civic Center Plaza
PO Box 1964
Santa Ana, CA 92702-1964

Or it may be emailed to mus.info@santa-ana.org

Your bill is payable the day you receive it. It becomes delinquent the day after the PAYMENT DUE DATE shown on your bill. If payment is not received prior to the bill becoming delinquent, a late payment charge of 10% is applicable to the total unpaid balance.

If you have a billing questions then please call the Municipal Utility Services office by telephone at (714) 647-5454 or you may email mus.info@santa-ana.org.

If you disagree with the amount of your billing, you must pay the full amount by the PAYMENT DUE DATE with a full written description of your claim. Your claim will be investigated and you will be notified of the outcome. This will avoid possible interruption of service so long as any new billing is kept current during the investigation.

You may submit the request by email to mus.info@santa-ana.org or by mail to  City of Santa Ana Municipal Utility Services, 20 Civic Center Plaza, PO box 1964, Santa Ana, CA 92702.

If your service is disconnected for non-payment then you must contact the Municipal Utility Services staff immediately by telephone at (714) 647-5454.  The re-connection of service may require payment in full of the amount owed and a re-connection charge may also be applied.

Additional information

Residential Water Service Discontinuation Policy

Read the Residential Water Service Discontinuation Policy in English, Spanish, Vietnamese, Tagalog, Korean, and Chinese.

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