The Shenango River received the greatest amount of cancer causing toxic chemicals in Pennsylvania, a total of 35,000 pounds, followed by the Susquehanna River and the Clarion River. Zinc Corporation Of America dumped the greatest amount of persistent toxic metals in Pennsylvania's waters, a total of 160,000 pounds, followed by Sharon Steel Corporation and Bethlehem Steel Corporation. Aquashicola Creek received the greatest amount of persistent toxic metals, a total of 162,000 pounds, followed by the Shenango River and the Susquehanna River. Potato Creek received the greatest amount of toxic chemicals that cause reproductive damage or birth defects, a total of 29,000 pounds, followed by Hog Run Creek and the Shenango River. These discharges to Pennsylvania's waters include only those wastes released by companies physically located in Pennsylvania.
Many waterways receive additional pollution from sources outside of the state.
Information on toxic water pollution in other states can be found in EWG's state reports series, and in the national report, Dishonorable Discharge. Recommendations Americans have a right to know about any use, transport, or release of toxic substance in their communities that might pose a risk to human health or the environment. Required reporting under the TRI provides only a small portion of this information. Much more complete reporting is needed. Americans also have a right to know about toxic chemicals in the products they buy that may pose a risk to them and their children.