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Posted on: October 29, 2018

Immediate Backflow Prevention Measures Required at all Construction Sites

The description of temporary water connections is - any connection to City Water that is available to construction sites for use on a construction project.  If a construction site has any construction activity present, the availability of water is referred to as temporary.  


Building sites with temporary connections must be tied to City water only through a hose bibb on a PVC riser with an attached screw-on type vacuum breaker. The vacuum breaker’s discharge opening must be set to a minimum height of 12 inches above the normal ground surface, and the riser must be reinforced by a stake. This rule applies to both existing temporary connections and those installed after October 1.

The connection must be within 5 feet of the meter and visible from the street. The vacuum breaker must be new when installed and may not be reused on another site.  Fines and misdemeanor charges are possible for removing the vacuum breakers before the connection becomes permanent.

For existing connections, no request for an inspection is required, but City personnel will be looking for locations not in compliance. If a non-compliant connection is spotted, the City will compel contractors to bring the connection in line with requirements.

Read the attached documents carefully to better understand the process.  Please call Jessica Noaker in Development Services if you have any questions.  830-598-9959.


Letter to Builders 

Notice to Comply 

Diagram as pdf (also shown below)


Diagram shows the proper construction of a temporary water riser for construction sites.




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