Water Standards

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Backflow/Cross-Connection Information

California State Health Code

Under Title 17 and Title 22 of the California State Health Code all Backflow Prevention Devices must be tested at least once annually to ensure proper operation. The Company will mail a test form to each Customer/Shareholder that has a Backflow Prevention Device. A copy of the test and any repairs made by a Certified Tester must be filed with the water company providing water to the company/owner of the device. The Company/Owner of the device is responsible for the cost of the testing and the cost of replacing the device should said device fail testing.

Bellflower-Somerset Mutual Water Company mails out approximately 90 test notices per year under the current Backflow Prevention Device program and assesses a $115.00 charge per year per device for the maintaining of this program.

Approved Backflow Testers

Company Phone Number Company Phone Number
Brad Griffith  714-475-8040 Norwalk Plumbing 562-868-7777
Hagan Plumbing 562-862-8000 Fire Safety First  714-836-4800
Atlas Backflow Services 562-343-1436 Pennine Plumbing, Inc 714-888-0040
Bavco 800-458-3492 Gene Pira, Inc   818-342-4744
Don Norlin 562-397-5728 Joe Green Plumbing 714-775-4144
Aqua Backflow 909-598-7521 Aaron Zeff’s Backflow  562-761-9074
Hazard Backflow 323-413-3960


Fire Flow Test & Application

Bellflower-Somerset Mutual Water Company offers fire flow availability testing services for all buildings other than one- and two-family dwellings, townhomes, and auxiliary dwelling units.

A $280 fee is due prior to the test. This check can be mailed or deposited in the drop box at our office. Cash is not accepted. To request this service, please fill out the following form and email it to for evaluation.