Public Works Engineering
Cross Connection Control Program
Cross Connection Control Program - Public Awareness
One of the greatest public health risks lies in the possibility of introducing a contaminant into the public
water supply. Layton City’s Cross Connection Control Program helps to prevent contamination of the public water
supply. A cross connection is any physical connection to the City water system that may allow contaminants to
come in contact with drinking water. Layton City continually strives to reduce the risk of contamination of our
potable water supply. Section 13.06
of the Layton City Municipal Code outlines this effort.
The objective of the Cross Connection Control Program is to reduce the risk of contamination by evaluating and
eliminating potential health or system hazards commonly found in the community. The strategy that Layton City
uses is called "containment strategy," which contains each individual service connection with a backflow device.
Layton City's program is divided into the following two areas:
Residential (service lines smaller than 1 1/4."):
These types of service connections are generally considered low hazard and adequate backflow protection
is normally provided by a dual check valve installed at the meter. However, a separate backflow preventer
is required on all landscape sprinkler systems using culinary water. The consumer has the responsibility
of preventing pollutants and contaminants from entering the public water supply. The consumer’s
responsibility starts at the point of delivery from the public water system and includes all of the
consumer’s private system.
Commercial (service lines larger than 1 1/4."):
These types of service connections pose varying degrees of hazard to the public water system. The type of
backflow assembly required depends on the type of hazard. A hazard assessment performed by the City can
determine the required type of assembly. It is the business owner's responsibility to purchase the backflow
assembly and hire a licensed plumber to install it at the water service entrance. Within ten days of being
placed into service, the assembly must be tested by a certified backflow technician and a test report must
be sent to the City. This test and report must be updated annually.
Finally, if you have an outdoor sprinkler system that runs on secondary water AND has the option to switch to
culinary water when needed, you are most likely at risk for cross-contamination into your home. Contact the Public
Works Shop at 801-336-3720 for assistance in determining if your home is at risk with this type of system, or if
you have any other questions about hazard assessment, compliance, or acceptable assemblies.
If you have any questions or concerns please feel free to contact Darrin Taylor at the number listed above
or through the Feedback Page
Thank you for your cooperation.