* FracFocus, sponsored by the Interstate Oil and Gas Compact Commission and the Ground Water Protection Council, lists chemicals used in over 94,000 wells: http://fracfocus.org/
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* [http://fracfocus.org/ FracFocus], sponsored by the Interstate Oil and Gas Compact Commission and the Ground Water Protection Council, lists chemicals used in over 94,000 wells.
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===Induced Seismicity:===
===Induced Seismicity:===
* U.S. Geological Survey “What you do and don’t know about induced seismicity.”
* U.S. Geological Survey “What you do and don’t know about induced seismicity.”