WATER
Cross-Connection Control
Program Frequently Asked Questions
1.
What is a cross-connection?
A cross-connection is
a connection or potential connection between
any part of a potable (drinking) water
system and any other environment containing
other substances in a manner that, under
any circumstance, would allow such substances
to enter the potable water system.
2.
What is a CCC Program?
An approved CCC program
is an organized, legally implemented and
structured program to eliminate and control
all actual or potential cross connections
to the municipal potable (drinking) water
supply.
3.
What is a backflow condition?
The undesirable reversal
of flow in a potable water distribution
system as a result of a cross-connection.
There are two types of backflow: backpressure
and backsiphonage.
4.
What is backpressure backflow?
Backpressure backflow
is backflow caused by a downstream pressure
that is greater than the upstream (supply)
pressure. Increases in downstream
pressure can be created by pumps, temperature
increases in boilers, etc.
5.
What is backsiphonage backflow?
Backsiphonage is backflow
caused by a negative pressure (a vacuum)
in a potable water system.
6.
What is a backflow prevention assembly or backflow preventer?
A backflow preventer
is a means or mechanism to prevent backflow.
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Frequently Asked