California natural-gas leak finally plugged
DOI: 10.1063/PT.5.029572
Ars Technica : The natural-gas well that has been leaking tons of methane gas since 23 October 2015 has finally been plugged, according to the well’s operator, Southern California Gas Company (SoCal Gas). In a statement, the company said that on Thursday the relief well that was being dug had reached the base of the leaking well and that a temporary plug of heavy fluids had been injected. Once state officials have inspected the site, the well will be permanently sealed. Over the nearly four months since the leak began, thousands of residents in a nearby community have been displaced because of health problems, such as headaches and nausea, caused by chemicals that had been added to the gas.