Official authority list

City of San Diego Public Utilities Backflow Program approved testers

This page mirrors cached entries from the governing authority's published tester list. Sponsor-only inventory stays off public pages and inside the private admin workflow.

Back to utility requirements Open the San Diego approved tester list Official program page Save request for follow-up

Official list entries

Authority-first tester table

Use the governing authority list first. Provider profiles and sponsor routing remain secondary to the official approval context.

Full name	License notes	Company or label	Review date
BAVCO Official list entry	County-certified tester directory entry used for Pasadena routing and also listed on IRWD and San Diego official tester rosters.	Southern California tester profile grounded in county-certified and utility-published rosters.	2026-04-05
One Flow Backflow Inc. Official list entry	Official tester listed on IRWD's district roster and on San Diego's approved tester list.	Southern California tester profile grounded in IRWD and San Diego rosters.	2026-04-05
Bernard Clarke Official list entry	Official San Diego approved tester entry	Officially listed on the San Diego tester PDF	2026-04-04
Cal-Oso Backflow Services Official list entry	Official City of San Diego approved tester entry from the 2026 tester list.	Officially listed on San Diego's approved tester PDF.	2026-04-05
San Diego Backflow Testing Official list entry	Official City of San Diego approved tester entry from the 2026 tester list.	Officially listed on San Diego's approved tester PDF.	2026-04-05

Utility workflow

Stay on the official compliance path

The utility page remains canonical. This tester surface should only help the user take the next step after the exact reporting and deadline path is clear.

If the Public Utilities Department contacts you, confirm which service connection is under the program.
Choose a tester from the approved list.
Complete the installation or annual test under the city's program standards.
Resolve any enforcement notices quickly so the issue does not escalate to fines or shutoff.

Official first

Authority list context

Always confirm tester status on the governing utility list before treating a provider as approved. Private sponsor inventory is never blended into this public list.

Open the San Diego approved tester list

Commercial layer

Featured providers

BAVCO Southern California tester profile grounded in county-certified and utility-published rosters.

One Flow Backflow Inc. Southern California tester profile grounded in IRWD and San Diego rosters.

No active sponsor is mapped here yet, so request submissions remain follow-up only.

Utility notes

Local compliance context

Upon installation and annually thereafter
San Diego says all backflow devices are tested annually and points customers to the approved tester list when the Public Utilities Department contacts them for compliance.
San Diego says failure to install and maintain a required device can lead to code enforcement, fines, and water service termination until compliance is restored.

Service territory

Use this page to compare nearby providers only after the utility rule and reporting path are clear.