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Cross Connection & Backflow Prevention Information


GMWSS has high standards for providing our customers with high quality water but protecting our system is everyone’s responsibility. There are state regulations stating that all residential, commercial and industrial customers are required to protect the public water system from contamination and/or pollution of any type from flowing back into the main water line. This is called backflow. To do so, a customer may be required to install a device to help prevent backflow from happening.

What is cross connection?
Cross Connection is any actual or physical connection between a potable (drinkable) water supply and any source of non-potable liquid, solid or gas that could contaminate drinking water under certain circumstances.

What is backflow?
Backflow is the undesirable reverse flow of water or other substances into the treated drinking water distribution system. There are two types of backflow: backpressure and back-siphonage. Backpressure is created by any elevation of pressure in the downstream piping system above the supply pressure at the point of consideration. This would cause or tend to cause a reversal of the normal direction of flow. Back-siphonage is a form of backflow due to the reduction in a system’s pressure which causes a sub-atmospheric pressure to exist in the water system.

Everyone should be aware that a backflow incident can affect the water supply which has the potential to create health hazards. Backflow incidents occur more often than you think. Unprotected cross connections are prohibited and everyone should be responsible for protecting our water supply and abide by state and plumbing regulations.

The customer who signs up for the water is responsible to protect the water supply from cross connections. A customer must maintain their plumbing system properly. The customer has the responsibility to ensure that unprotected cross connections are not created and that the proper backflow prevention device is installed and tested annually.

Several things a customer should be aware of to keep our water from contamination:

• Know what a cross connection is to eliminate or isolate it.
• Maintain air gaps on water hoses and sinks.
• Be careful where you place a hose, do not submerge it.
• Hose bib vacuum breakers on fixtures are recommended ( outside faucets, laundry room connections and the connection made at the house)
Here is a list of a few of the places where a device should be placed.
• Irrigation Systems
• Fire Sprinkler Systems
• Any industrial Systems
• Funeral homes
• Hospitals
• Restaurants
• Greenhouses
• Laundry Facilities
• Car washes
• Swimming pools
• Automatic livestock waterers
• All farms including homestead exempt

GMWSS has a cross connection prevention program in place that should be followed by every customer. Backflow prevention devices are maintained by the customer and tested on a yearly basis in order to ensure they are still working properly. If you have any questions, please call Deanna Lunsford at 502-863-7816 ext.1202.

pvb
Pressure Vacuum Breaker (PVB)
dc
Double Check Valve (DC)
   
rp
Reduced Pressure (RP)
 


 

 

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