Chemicals in drilling area water W. Pa. tests: Chemicals in drilling area water Feb 24 01:20 PM US/Eastern By The Associated Press EVANS CITY, Pa. A western Pennsylvania woman says state environmental officials refused to do follow-up tests after their lab reported her drinking water contained chemicals that could be from nearby gas drilling. Janet McIntyre's is one of at least 10 households in the rural Woodlands community, about 30 miles north of Pittsburgh, who complain that recent drilling impacted their water in different ways. She says the chemicals didn't show up on pre-drill tests. The Associated Press confirmed that five chemicals that can be associated with natural gas drilling showed up in tests last summer. But the chemicals are also widely used separately in other industries. Kevin Sunday, a Department of Environmental Protection spokesman, says the low chemical concentrations were not a health risk, and that the contamination may have come from the laboratory.