According to the Associated Press, Pennsylvania is the only state allowing natural gas drillers to dump toxic wastewater from "fracking" into its waterways. This was confirmed in a letter to me from Pennsylvania Senator Robert P. Casey (D), who has been a sponsor for a bill which would require all gas drillers in the U.S. to leave the water in the waterways up to Clean Water Act standards. Senator Casey's initiative in this matter, while laudable, has gone nowhere; and he advised me that much of the action on the question would take place within the state, and that it would be advisable to be in touch with members of the Pennsylvania State House and Senate.
Meanwhile the advocacy group Food and Water Watch has suggested another route to action. It has noted that Pennsylvania Governor Tom Corbett (R) has the power to order a moratorium on fracking until a study can be made of the practice's public health and environmental effects. The Governor's office may be called during normal business hours at(717) 787-2500. Learn more about Food and Water Watch at http://www.foodandwaterwatch.org.