Can people with HIV/AIDs or weakened immune systems drink tap water?
Water utilities must meet over 120 different drinking water requirements for tap water. People with severely weakened immune systems are not always protected by these standards because requirements are based on reducing risks for people in good health. For example, a microscopic parasite called Cryptosporidium can cause a life-threatening illness for people with weakened immune systems. The chance of finding Cryptosporidium in water served by Southern California utilities is quite small. However, people with severely weakened immune systems should talk to their doctor about possible alternatives to tap water.

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1. What is done to purify the water before it comes out of the tap?
2. Who is making sure that my water is safe and healthy to drink?
3. Who should I call if I have a problem with my tap water?
4. How do I treat water during an emergency?
5. How do I handle water emergencies?
6. How do I flush my household pipes?
7. Is there lead in my water?
8. Is there fluoride in my water?
9. Can pregnant women drink tap water?
10. Can people with HIV/AIDs or weakened immune systems drink tap water?
11. Do I need to purchase a home treatment device to make my tap water safe?
12. Should I boil my water?
13. Do I need a water softener?
14. Should I buy bottled water or water at vending machines or water stores?
15. Why does my water sometimes look dirty, cloudy or have a strange color?
16. Why does my water leave spots on my glasses, coffeepot and showerhead?
17. How can I find out what's in my water?