Extensive New Study finds Fracking not related to Groundwater Contamination
Previous studies using very small sample sets reported that there may be higher concentrations of methane dissolved in groundwater near wells using hydraulic fracking methods in northeastern Pennsylvania.1,2
The new peer reviewed study by Syracuse University published in Environmental Science and Technology used a database of over 11,000 sites, hundreds of times larger than the previous studies. No statistically significant relationship was found between dissolved methane concentrations in groundwater from domestic water wells and proximity to pre-existing oil or gas wells. Previous analyses used small sample sets compared to the population of domestic wells available, which may explain the difference in prior findings compared to the new findings using over 10,000 data points. (more…)