ATSDR Public Health Consultation Community Concerns Regarding Natural Gas Extraction Activities ATSDR investigated the water quality of seven residential wells surrounding the Chesapeake ATGAS 2H natural gas well site in Leroy Township, Bradford County, PA, at the request of the U. S. Environmental Protection Agency (EPA) following a well blowout. ATSDR found that several wells had elevated levels of salts and other chemicals, according to a report. While it is unclear how the wells were contaminated, the available data suggest to ATSDR that one well was impacted by natural gas activities. The data from the other six wells did not suggest impact from natural gas activities. To read the public health consultation, please visit: http://www.atsdr.cdc.gov/HAC/pha/ChesapeakeATGASWellSite/ChesapeakeATGASWell...  The full press release may be viewed at:  http://www.atsdr.cdc.gov/news/displaynews.asp?PRid=2519