Annual Backflow Assembly Testing Requirements

Northstar Community Services District is responsible for ensuring the protection the public water supply from contaminants or pollution as a result 
of a backflow event through the customer’s water service connection. The NCSD Cross-Connection Control Program is a mandate by the State of 
California Department of Health Services requiring enforcement of Title 17, Section 7605 of the California Code of Regulations. Backflow 
prevention assemblies must be tested each year, by a NCSD approved certified Backflow Prevention Assembly Tester. NCSD customers will 
receive notice from the District 60 days in advance of your next test due date. Additionally, per section 8.06 of the District's Water Ordinance, 
you are allowed 30 days from receipt of notice from the NCSD to have the device(s) tested by a certified backflow prevention device tester.

To Ensure Your Public and Home Water Supply is Protected from Cross-Connection Hazards, the NCSD's:

• Engineering Department reviews construction plans for potential cross-connections.
• Operations Department conducts field inspections for potential cross-connections and inspects the installation of new assemblies.
• Backflow Prevention Compliance Team monitors all assemblies within the District; notifying customers on testing deadlines and educating
  customers on the importance of cross-connection control. 

Customer Resources

Section 8.04 Protection Requirements: The section of the District water ordinance pertaining to Backflow prevention.

Regional Backflow Testing Servicers:   A current list of preapproved testers for hire in the Lake Tahoe, Truckee and surrounding areas.

NCSD Backflow Assembly Test Form:  The current test submittal form for backflow testing servicers. Use of this form is not required by 

testing companies using a similar format for their business. Test information can be submitted 

through the NCSD Syncta Tester Platform, email to backflow@northstarcsd.org, or fax to (530) 562-1505.