What kind of buildings need backflow prevention assemblies?

Facilities that require backflow prevention assemblies include,  but are not limited to: amusement parks, auxiliary water systems, almost any kind of heavy industry, car wash facilities, cold storage plants, film laboratories, fire systems, hospitals and other medical facilities,  building with irrigation (sprinkler) systems, laundromats and dye works, motion picture studios, schools, large multistory buildings, sewage and storm drain facilities, water treatment plants, wastewater treatment plants, waterfront facilities, and water-using recreational facilities such as pools or water parks. Any building where there is a risk of cross-connection to pollutants or contaminants needs a backflow prevention assembly.

Show All Answers

1. Why does the City of Petersburg Public Utilities Division have a Backflow Prevention & Cross Connection Control Program?
2. What is a cross-connection?
3. What is backflow?
4. What is backpressure?
5. What is backsiphonage?
6. Why is backflow a concern to the public?
7. Are all residential homes required to have backflow assemblies?
8. Why are irrigation systems considered to be hazardous to the water system?
9. What type of backflow prevention assemblies are allowed in irrigation systems?
10. How do I know if I have a backflow prevention assembly?
11. What kind of buildings need backflow prevention assemblies?
12. Is there a minimum height that the backflow assembly must be installed?
13. When is a plumbing permit required?
14. Can a backflow device be removed?
15. How frequently does a backflow prevention assembly have to be tested?
16. How much will the inspections/maintenance cost?
17. What credentials are required to inspect and test a backflow prevention assembly?
18. Will I receive notification when to perform my test?
19. What if I don’t receive a letter?
20. What can I do with my test report?
21. Abbreviations