DAISETTA, Texas -- On day six of the sinkhole in Daisetta, geologists were digging a second hole. This one on the edge of the gaping crater.

The sinkhole now filled with a mixture of oil, waste and water running from the marshlands above and percolating from the ground below.

And experts said Monday that the sinkhole is the work of man, not nature.

"It's definitely related to mankind's activities,” said Mark Kasarek, a hydro geologist for the U.S. Geological Survey. “It's showing what mankind's activities will do and how the earth will relate to it… how it responds to the stress that man's doing.”

But as they installed a sensing device that will tell them by satellite when the earth moves here again, the question is whether it's related to decades of taking oil out or years of pumping salt water and other waste back in.

The Texas Railroad Commission confirmed to 11 News that their records show Deloach Oil and Gas Wastewater Disposal Co. was dumping nearly twice as much saltwater and oil production waste into a nearby injection well.

But those violations weren't discovered until after the sinkhole happened.

The railroad commission said they didn't know about the over-dumping until they pulled the records after the sinkhole formed. The commission says it is now auditing the company.

But the immediate concern here in Daisetta isn't about assigning blame if there is any. The immediate concern is how do you clean up something like this and how do you know if it's going to get even bigger than it already is.

Because that's the concern for the high school right now. Not at this very moment, but twenty years from now is it going to be a threat or a worry.

The worry on day six is if and when the farm road through town will open again. If the water will stay safe to drink.

And if anyone can assure them, more of Daisetta won't crumble.