I'm so sorry to leave this comment here, but why on earth are your Ghost live concert videos on RU-vid kids!? 😭 I'm fine with Ghost, I love them, but maybe Mummy Dust live isn't something six-year-olds should find 😅
Yes there was razor wire from the 1970's through the 1990's. The EPA gave the land an "all clear" about 10 years ago. After heavy rains, there are still rainbows on puddles in some areas, so how clean can it be? It's toxic dumping because there are a few thousand documents saying it was toxic. If you go to the EPA website, you can see the full records, and what was done to clean it up. The list of chems in the ground is listed there. It's a lot of nasty stuff.
But seriously, park closed due to toxic dumping? Was there by any chance a fence with razor wire caging this in? If so, why did you still go in? If not, how did you come to the conclusion that it was toxic dumping?
You can get to it by going West at the remains of a driveway South of 22 mile road on Ryan. It is a football field North of the river. Once in there try to follow a faint trail, and keep an eye out. It's there. Got a bike? I'll go in for a look. Last time I couldn't find it, but gave up early.