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County of Los Angeles
Department of Public Health
Environmental Health
5050 Commerce Drive
Baldwin Park, CA 91706
(888) 700-9995



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Cross Connection & Water Pullution Control Program

Los Angeles County Department of Public Health
Cross Connection and Water Pollution Control Program
5050 Commerce Drive, Baldwin Park, CA 91706
Phone:(626) 430-5292 between 8:00 a.m. and 5:00 p.m.
Fax:(626) 337-8631
Email: CCWPCP@ph.lacounty.gov

Frequently Asked Questions

If you want to make change to your account, please fill out our electronic PDF form pdf icon and email directly to the Cross Connection Program by pressing "Submit by Email to Cross Connections" link at the top right of your form.

Why am I receiving this invoice?

Title 8 of the Los Angeles County Code requires all persons having backflow prevention assemblies to pay the Department of Public Health an annual administrative fee of $32 per assembly. This fee is for the annual processing of the test notice(s), overseeing the testing and certifying backflow prevention assembly testers (Sec. 8.04.728). Note: Test notices are sent separately from invoices.

How can I make changes or corrections to a name, an address or backflow prevention assembly information or location?

On the form pdf icon , select "Make changes or corrections to my account". Fill in the changes or corrections in the appropriate boxes at the bottom of your form.

How can I change the address where my invoices are sent?

On the form pdf icon , select "Change the address where invoices are sent" and complete in the information in "Invoice Mailing Address" at the bottom of your form.

How can I change the address where my test notices are sent?

On the form pdf icon , select "Change the address where test notices are sent" and complete in the information in "Test Notice Mailing Address" at the bottom of your form.

I no longer control or manage or own the backflow prevention assembly or assemblies at this property. What do I do?

On the form pdf icon , select "I no longer control, manage or own the backflow assembly at this property". Include your Facility ID (FA#######). Email your form to Cross Connection Program.

What do I do if a backflow prevention assembly or assemblies is/are removed?

If you have removed a backflow prevention assembly from your property, building or facility, select "I want to remove the following backflow prevention assembly or assemblies" on the form pdf icon and enter your backflow assembly ID numbers (BD#######) you want to remove. Include your reason for removal. Email your form to the Cross Connection Program as soon as possible. Deduct $32 from the invoice for each assembly that you want removed and send in the balance of the payment. If you are deducting an assembly, you will not be able to make an online payment. A member of the Cross Connection Program will verify the removal.

How can I receive a copy of an invoice?

On the form pdf icon , select "I want a copy of an invoice" and enter your account number (AR#######).

How can I receive a copy of a backflow prevention assembly test notice?

On the form pdf icon , select "I want a copy of a test notice" and enter your backflow prevention assembly number (BD#######) or your facility number (FA#######) if you want all the backflow prevention assemblies for that facility.

Why am I receiving only one invoice for all my different properties (facilities)? How can I separate them into individual invoices for each property?

Normally, each property with backflow prevention assemblies receives one invoice. If you are receiving one invoice for several properties and you want to have a separate invoices for each property. Select "I want a separate invoice for each property" on the form pdf icon . Please include your Facility ID number (FA#######) and Owner ID number (OW#######).

Why am I receiving multiple invoices? How can I consolidate them into one invoice?

Normally, each property with backflow prevention assemblies receives one invoice. You can arrange to have all your properties and their backflow prevention assemblies consolidated on one invoice. On the form pdf icon , select "I want to consolidate multiple invoices I receive for different properties into one". List your facility numbers (FA#######) of the properties in question and your owner number (OW#######).

I have a billing or other question.

If you have any questions, select “Billing or other questions” and enter your question on the form pdf icon . Press "Submit by Email to Cross Connections" button to submit the form directly to the Cross Connection and Water Pollution Control Program.


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