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Backflow Inspection Information

Pursuant to Missouri Department of Natural Resources (MoDNR) Drinking Water Program regulation, certain customers of public water systems are required to have and maintain backflow assemblies on certain types of water lines and are required to have such assemblies tested by a Certified Backflow Inspector on an annual basis.   

The Water Department strives to ensure a safe and responsible water system is in place and provides courtesy advanced notification letters via mail for all testings coming due.   Those customers with the following service lines are required to have their backflow assembly tested:

  • Commercial water lines
  • Fire lines
  • Irrigation systems
  • Dock-supplied water lines
  • Other service lines as noted by the MoDNR


For more information regarding Backflow Prevention or Testing contact the Water Department or the Missouri Department of Natural Resources.


City of Osage Beach • 1000 City Parkway • Osage Beach, MO 65065• 573-302-2000•
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