VERY DISTURBING "Massive DDT dumping ground found off the Los Angeles coast is bigger than anyone thought | Now, a research expedition presents a clearer picture of the deep-sea dump site. Their findings reveal a stretch of ocean bottom studded with at least 27,000 industrial waste barrels — and possibly as many as 100,000, researchers with Scripps Institution of Oceanography at the University of California..."When the barrels were too buoyant to sink on their own, one report said, the crews simply punctured them," the L.A. Times reported..."
https://www.livescience.com/ddt-dump-catalina-island.html