Are You Drinking Safe Water?

[Samwhore]

Are you? As you know, many bottled waters and tap waters differ in amounts of E.Coli, but which water is the best?

For a description on E. Coli: Escherichia coli - Wikipedia, the free encyclopedia, basically, fecal poisoning.

Well, last year, I did a test for my science fair project to see which brand of water is better in terms of E. Coli, the waters I tested were

• Arrowhead
• Fiji
• Dasani
• Aquafina
• Regular Tap Water

I ran my experiment by buying special discs to grow E.Coli. I put 1000microliters of each water sample at 65 degrees in each disc. I let them incubate in an incubator for 2 weeks. The growth of E.Coli would show up as tiny colonies on the gel inside the discs. I ran my experiment twice, (I didnt have enough discs for a third trial)

The results: (for both trials)

• Arrowhead- Many colonies of E.Coli, basically, everywhere
• Fiji- One colony of E.Coli
• Dasani- No colonies
• Aquafina- No colonies
• Tap Water- No colonies

Basically, Tap water is okay to drink in terms of E.Coli, :thumbsup: other bacteria Im unsure of. For a simple precaution, do not drink Arrowhead.

Samwhore Reviewed by Samwhore on 03-03-2007. Are You Drinking Safe Water? Are you? As you know, many bottled waters and tap waters differ in amounts of E.Coli, but which water is the best? For a description on E. Coli: Escherichia coli - Wikipedia, the free encyclopedia, basically, fecal poisoning. Well, last year, I did a test for my science fair project to see which brand of water is better in terms of E. Coli, the waters I tested were Arrowhead Fiji Dasani Rating: 5