# Backflow Testing in Simi Valley, CA > Certified backflow testing in Simi Valley, CA. How Waterworks District No. 8 (BSI Online) and Golden State Water backflow programs work. Source: https://www.exoduswater.com/backflow-testing/simi-valley Backflow testing ยท Ventura County # Backflow Testing in Simi Valley, California Certified annual backflow testing in Simi Valley. We test your assemblies and file the report through BSI Online or with Golden State Water, before your deadline. [Schedule a test](https://www.exoduswater.com/contact-us?service=backflow) [(805) 991-7333](tel:+18059917333) Who runs your program ## Water suppliers and backflow programs in Simi Valley Your annual notice comes from the water supplier on your bill. Each one runs its own program, so here is how it works with yours. ### Ventura County Waterworks District No. 8 (City of Simi Valley) The District mails an annual notice with a Customer Confirmation Number. Your tester uploads the report on BSI Online within 30 days of the notice; late results bring a penalty fee and a second notice warning that service may be shut off. The District and BSI Online do not test, so you hire a certified tester. Source: [City of Simi Valley, Backflow Prevention](https://www.simivalley.org/departments/public-works/waterworks-services/backflow) ### Golden State Water Company Golden State Water serves part of Simi Valley. It requires an annual test by a certified tester on its test form, sent to backflowtest@gswater.com. It does not keep a list of testers. Source: [Golden State Water, Cross-Connection Control Program](https://www.gswater.com/cross-connection-control-protection-program) ## Certified backflow testing for Simi Valley Exodus Water Services is based in Thousand Oaks. Certified Backflow Prevention Assembly Testers test reduced pressure (RP), double check, pressure vacuum breaker and spill-resistant vacuum breaker assemblies, and inspect air gaps, for homeowners, property managers, businesses and HOAs in Simi Valley. We file the report the way your supplier requires, send you a copy, and when an assembly fails we coordinate the repair and retest it. In programs run on [Exodus Water Compliance](https://www.exoduswater.com/exodus-water-compliance) , reports are filed by scanning the QR code on the notice. Backflow guides - [Backflow testing in California: property owner guide ](https://www.exoduswater.com/post/backflow-testing-california-property-owner-guide) - [Backflow test cost in California ](https://www.exoduswater.com/post/backflow-test-cost-california) - [Types of backflow preventers ](https://www.exoduswater.com/post/types-of-backflow-preventers) - [What happens if a backflow test fails ](https://www.exoduswater.com/post/what-happens-if-a-backflow-test-fails-california) The process ## How backflow testing works with us 1. Send us your notice or call 2. We confirm your supplier and due date 3. A certified tester tests each assembly 4. We file the report with your supplier 5. Failed assemblies: repair coordinated and retested FAQ ## Backflow testing questions in Simi Valley Nearby cities - [Backflow testing in Thousand Oaks ](https://www.exoduswater.com/backflow-testing/thousand-oaks) - [Backflow testing in Newbury Park ](https://www.exoduswater.com/backflow-testing/newbury-park) - [Backflow testing in Moorpark ](https://www.exoduswater.com/backflow-testing/moorpark) - [Backflow testing in Camarillo ](https://www.exoduswater.com/backflow-testing/camarillo) - [Backflow testing in Westlake Village ](https://www.exoduswater.com/backflow-testing/westlake-village) - [All backflow testing ](https://www.exoduswater.com/backflow) ### Who requires backflow testing in Simi Valley? Your water supplier: Ventura County Waterworks District No. 8, run by the City of Simi Valley, or Golden State Water Company, which serves part of the city. Check your water bill. ### How often do backflow assemblies need to be tested? At least once a year, and again after installation or repair, by a certified Backflow Prevention Assembly Tester, under the State Water Board Cross-Connection Control Policy Handbook (section 3.3.3). Your water supplier mails the notice with the due date. ### What happens if my assembly fails? A failed assembly must be repaired or replaced and retested, generally within 30 days of the failure under the handbook (section 3.3.3), unless your supplier allows more time. We report the failure, coordinate the repair with a licensed contractor and retest the assembly. ### How much does a backflow test cost? It depends on the type and size of each assembly, how many you have, access, and any filing fee your supplier charges. Send us your notice and we will quote before scheduling. ### How long do I have to test after a Simi Valley notice? For Waterworks District No. 8 customers, the test report must be filed on BSI Online within 30 days of the notice. Late results bring a penalty fee and a second notice that warns of service termination. ## Schedule your backflow test in Simi Valley Send us your notice or your last test report. We will schedule the test, file the report and keep your records current. [Schedule a test](https://www.exoduswater.com/contact-us?service=backflow) [(805) 991-7333](tel:+18059917333)