Agency-approved testers serving Rancho Cucamonga
Every tester below is on a local water-agency approved list. Claimed & verified businesses appear first; the rest can be reached at their agency-published number.
Hesperia, CA(909)544-1340
Corona, CA(323) 973-9272
Chino, CA(909)576-3410
Perris, CA(909)442-5559
Jurupa Valley, CA(951)809-0246
Moreno Valley, CA(951)242-3399
Alta Loma, CA(909)240-2653
San Bernardino, CA(909)881-0898
Fontana, CA(909)518-7279
Grand Terrace, CA(909)567-9543
Menifee, CA(951)434-4756
Rancho Cucamonga, CA(909)481-3938
San Bernardino, CA(951)315-9828
Irvine, CA(949)916-2393
San Bernardino, CA(909)955-8640
Rialto, CA(909)782-0770
Rancho Cucamonga, CA(909)944-5506
San Bernardino, CA(909)889-6805
Ontario, CA(909)828-1512
Fontana, CA909)899-4845
Chino Hills, CA(800)464-9287
Sun City, CA(951)345-5364
Backflow testing requirements in Rancho Cucamonga
Property owners in Rancho Cucamonga served by Cucamonga Valley Water District (CVWD) are required to have their backflow prevention assemblies tested annually. If you've received a testing notice, a certified tester can complete the test and file your results directly with your water agency — keeping your property compliant with no paperwork on your end.
Rancho Cucamonga zip codes served: 91701, 91729, 91730, 91737, 91739