Backflow Prevention Device Annual Test Program

Backflow Prevention

General Information and Requirements

The State Department of Health and Environment regulations requires the City of Patterson Cross Connection Control Program to test all backflow prevention devices installed on the City Water Infrastructure. The City tests its own backflows and those private devices with authorization from property owners.

How to Notify the City of your intent to Test

Periodic Test and Maintenance letters will be sent out to all property owners and responsible parties in January of each year. Letters were mailed out to all affected parties on January 15, 2020.Parties are able to respond using the response form available here. Property Owners that do no respond and notify the City of their selected approved outside tester, will authorize the City to perform the tests for 2020. The response deadline is noted on the letter and the form will only be available until the deadline.

Approved Outside Testers

The City does not accept backflow tests from outside testers that have not been approved by the Public Works Department. A current list of approved backflow testers are as follows:

NumberCompany NameTester NamePhone NumberCert NumberCert Expires
1


Same Day Backflow


Joseph R. Reyes


209-986-3569


07863


2/28/2020


2


Kelly's Backflow Services


Andrew R. DuHamel

Paul H. Kelly

Tim Barcellos


209-920-3453



16285

12925

16586


10/31/2019

9/30/2021

5/31/2020


3


AAA Backflow Prevention Services


Jordan C. Lee

877-226-3569


16194

2/28/2021


4


B & B Backflow Service


Gary Bradley Cruse


209-456-6031


1328


3/31/2022


5


COSCO Fire Protection


John Thomas Stobb


Greg Garcia


Ryan P. Smith


209-275-3795



15144


14393


16793


4/30/2020


5/31/2021


10/31/2020


6


Dan Ely Backflow Services


Dan Ely


209-678-7024


02159


10/31/2020


7Bay & Valley Backflow ServicesJoel Garcia800-671-41291366110/31/2019
8Action PlumbingMike L. Lewis209-525-8142127766/30/2021
9Jorgensen & Sons, Inc.Nicolas Crook209-529-0835173531/31/2022
10Quality Service, Inc.Troy Long209-838-7842157798/31/2021
11The Backflow Guy, Inc.Danny Keddy877-384-3489158841/31/2022


Backflow Tester's New to the City of Patterson

Forms can be download for submission or electronic application can be submitted, however, a business license is required to complete the process.

Application to become an approved tester (PDF)

Information about our program (PDF)