TROY, N.Y. (AP) — A new federal study has found high levels of methane gas in some upstate New York state water wells, even in areas that aren't near oil and gas drilling.
The U.S. Geological Survey says in a Tuesday release that 15 percent of groundwater samples from 66 household wells across south-central New York contained methane at levels high enough to warrant monitoring or remediation. Higher concentrations of methane were found in water wells located in valleys.
The USGS says the testing was done in the summer of 2012 and the study area includes about 2000 square miles in parts of Broome, Tioga, Chemung, Chenango, and Delaware counties.
USGS scientist Paul Heisig says the testing shows that methane is already common in some water wells, especially in valleys.