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November 2021
2021 Newsletter
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December 2020
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River Intake Flood
April 2020
2019 CCR




Cross Connection Forms and Typicals

To better facilitate those testing and installing backflow prevention devices, we have forms and typicals available for downloading. Forms are available as .pdf documents. Typicals are available as a .pdf as well as being available in AutoCAD .dwg format, in the event the typical needs to be included on a engineering plan or specification sheet.



Cross Connection Forms
Backflow Preventer Test Form
Tester Information Form
Backflow Preventer Application


Cross Connection Typicals
Vault Coupling
Reduced Pressure Principle (RP) 3/4 in. through 2 in. Commercial
Reduced Pressure Principle (RP) 3/4 in. through 2 in. Tandem Above Ground
Reduced Pressure Principle (RP) 3/4 in. through 1-1/2 in. Lawn Irrigation
Reduced Pressure Principle (RP) 3 in. through 10 in. Above Ground
Offsets and Restraints
Fireline Connection 3 in. through 10 in. Above Ground
Fireline Connection 3 in. through 10 in.
Double Check Valve (DC) 3/4 in. through 2 in. Below Ground Traffic
Double Check Valve (DC) 3/4 in. through 2 in. Below Ground Non-Traffic
Double Check Valve (DC) 3/4 in. through 2 in. Above Ground
Double Check Valve (DC) 3 in. through 10 in. Below Ground Vault
Double Check Valve (DC) 3 in. through 10 in. Above Ground
Double Check Detector (DC) 3 in. through 10 in. Above Ground
Above Ground Enclosure 3/4 in. through 1 in.
Above Ground Enclosure 1-1/2 in. through 2 in.