As a result of the 2010 explosion of the semi-submersible "Deepwater Horizon" drilling rig and the subsequent oil spill, informants within BP came forward with allegations that safety practices at "Atlantis PQ" were flawed. Specifically, allegations have been laid against the plans and specs used in its construction, maintenance, and operation. Kenneth Abbott, a former BP contractor, reported that up to 89 percent of the engineering plans used to build and operate the installations were never authenticated by even BP engineers for safety and stability, and that over 95 percent of the plans for the underwater welds were never verified. Food &amp; Water Watch, a US-based consumer interest group, filed a complaint with the US district court requesting an injunction to stop production on "Atlantis PQ" until these matters have been investigated.