(November 16, 2016, 2:07 PM EST) -- LOS ANGELES — Two environmental advocacy groups on Nov. 11 filed a lawsuit against federal and state agencies in California federal court, alleging violations of federal law regarding an environmental assessment that ended a moratorium on permit approvals involving the use of well stimulation treatments (WST), including acid well stimulation and hydraulic fracturing on the Southern California Outer Continental Shelf (Environmental Defense Center, et al. v. Bureau of Ocean Energy Management, et al., No. 16-8418, C.D. Calif.)....