At least 10 households in western Pennsylvania fear their drinking water has been ruined by natural gas drilling, but state officials say tests don't show that.
Residents say Rex Energy Corp. has sent letters notifying them it will no longer deliver drinking water to the households after Feb. 29.
Rex Energy says in a statement that testing found no notable differences in pre and post-drilling water chemistry in Connoquenessing Township, about 35 miles north of Pittsburgh.
Department of Environmental Protection spokesman John Poister says the agency hasn't any found evidence that oil or gas drilling caused problems.
But resident Janet McIntyre says people in the neighborhood have reported orange water, black water, yellow water and unusual test results over the last year, along with odors and illnesses.
Copyright 2012 The Associated Press.