Why do water suppliers need to control cross-connections and protect their public water systems against backflow?

Backflow into a public water system can pollute or contaminate the water in that system (i.e., backflow into a public water system can make the water in that system unusable or unsafe to drink), and each water supplier has a responsibility to provide water that is usable and safe to drink under all foreseeable circumstances. Furthermore, consumers generally have absolute faith that water delivered to them through a public water system is always safe to drink. For these reasons, each water supplier must take reasonable precautions to protect its public water system against backflow.

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1. Where can I find water quality information about my water?
2. How is the water treated?
3. Where does Pasco County Utilities get its water from?
4. If I am experiencing water quality issues, who should I contact?
5. Why are utility workers opening hydrants in my neighborhood?
6. Is my water safe?
7. What causes sewer odors inside the house?
8. What causes blockages to occur?
9. What is the purpose of a roof vent?
10. What is the purpose of vapor traps?
11. Does it make a difference how much water gets into the sanitary sewer system?
12. What is reclaimed water?
13. What are some of the benefits of reclaimed water?
14. What is the quality of reclaimed water?
15. How is reclaimed water processed?
16. How do I apply for Reclaimed Water Service?
17. Is reclaimed water safe?
18. What is a backflow?
19. Why do water suppliers need to control cross-connections and protect their public water systems against backflow?
20. What is a backflow preventer?
21. What is an air gap?
22. What is a reduced principle assembly (RP)?
23. What is a pressure vacuum breaker assembly (PVB)?
24. What is a double check valve assembly (DC)?
25. What is a residential dual check valve (RDC)?
26. Why do backflow preventers have to be tested periodically?
27. What is a cross connection?
28. Where can I get more information about cross-connection control?