the public water supply here in charleston, west virginia, cnn decided to do our own testing with test america, a private company out of ohio. >> i'm going to collect five of these bottles for this particular sample. >> reporter: we wanted to sample water from our hotel where the do not use order has been lifted as well as from the home of t.w. cox, where the ban is still in effect. >> and with no end, looks like, in sight for us out here. >> reporter: both samples were drawn within about an hour of each other. they ran the water for 20 minutes before filling the bottles. lab testing was done overnight with control samples. the result? both samples contained mshm, the chemical which leaked into the water supply out of freedom industry storage tanks last week. but both levels were below the 1 part per million considered safe to drink according to what government officials have said