[JimSEA]

Both Roberts and Katz said that the ice is likely dirtier because machines aren't cleaned and people use unwashed hands to scoop ice. Toilet water is also surprisingly bacteria-free, because it comes from sanitized city water supplies.

So basically she is testing tap water from the toilet and tap water with human had contamination from ice handling. Results not at all surprising.

[demkicker]

I'm wondering if she used the toilet water from the tank of the toilet or the potty bowl for her samples. Big difference...