In October 2012 EPA's Rad-Net's periodic Iodine-131 drinking water readings were elevated to 5.46 pCi/L (the highest reading in the US) at the Belmont facility and to 3.28 pCi/L at Queen Lane.
Philadelphia city council members have been lobbied to oppose gas development, due to concerns that [[hydraulic fracturing]] threatens the city's water [REF].