51 members of the committees, no member had expertise in environmental public health, even after enlarging the category of experts to “include medical and health professionals who could be presumed to have some health background related to environmental health, however minimal”. This cannot be explained by the purpose of the committee since all three executive orders of the different committees mentioned environmental public health related issues. The authors found that a quarter of the opposed comments mentioned the possibility of bias in favor of gas industries in the composition of committees. The authors concluded that political leaders did not want to raise public health concerns that could handicap further economic development due to fracking. Drilling permits The Marcellus Center at Pennsylvania State University reported that the number of permits issued for wells increased from 122 in 2007 to 3249 in 2011 and posted an animated map of this proliferation. The bulk of waste from hydraulic fracturing in Pennsylvania is disposed of or used within the state but not all companies submit reports on production or waste. In November 2012, the PA DEP was again accused of withholding information about chemicals from hydraulic fracturing fluid that were found in residents' drinking water. It had previously failed to notify residents about hydraulic fracturing related contamination events. In 2013, under pressure from the Corbett administration, the PADEP attempted to suppress negative information about the impact of hydraulic fracturing in the state's shade plays from a mandated report on climate change. Members of the Corbett administration wanted all references to a 2011 Cornell University study by Howarth removed from the report. As of 2012, Corbett had received over one million dollars in campaign contributions from the oil and gas industry. The Marcellus Shale Law (House Bill 1950) The Marcellus Shale Law (House Bill 1950) was signed on February 14, 2012, by Governor Tom Corbett. Despite warnings from the EPA about the safety of wastewater, the law changed the zoning laws applicable to Marcellus Shale Well Drilling. The law was slated to take effect in April 2012, but legal challenges from a growing group of Pennsylvania municipalities and organizations led Commonwealth Senior Judge Keith Quigley to order that the implementation of parts of Act 13 be delayed for 120 days. The Act is target toward unconventional gas wells and is to be paid by all producers with "spud wells". The fee is determined on a