Earthquakes and Injection wells
According the USGS, in 1961, a 12,000-foot well was drilled at the Rocky Mountain Arsenal. This site is located just northeast of Denver. The waste injection began 1962 and an unusual series of earthquakes erupted not long after. USGS http://earthquake.usgs.gov/earthquakes/states/colorado/history.php
Rocky Mountain Arsenal, from 1990 titled, Earthquake Hazard Associated with Deep Well Injection—A Report to the US Environmental Protection Agency. On page 4 in Table 1 of this report provides a list of earthquakes where deep well injection is the known cause of the quakes.Nicholson and Wesson Report, 1990 http://foodfreedom.files.wordpress.com/2011/11/earthquake-hazard-associated-with-deep-well-injection-report-to-epa-nicholson-wesson-1990.pdf
Geomechanical Study of Bowland Shale Seismicity commissioned by Cuadrilla (11/2011) http://www.cuadrillaresources.com/cms/wp-content/uploads/2011/11/Seismic-Report-Executive-Summary-02-11-11.pdf
British Geological Survey, Blackpool Earthquake (May 2011) http://www.bgs.ac.uk/research/earthquakes/blackpoolMay2011.html
Radioactivity in Oil and Gas Waste
Sci Am- Natural Gas Drilling Produces Radioactive Wastewater-Wastewater from natural gas drilling in New York State is radioactive, as high as 267 times the limit safe for discharge into the environment and thousands of times the limit safe for people to drink.