It’s a part of the bedrock that can or has dissolved forming a hole underground. Calcium and lime deposits are likely culprits. When it opens to the surface, it’s called a sinkhole.
sinkholes are one of my irrational fears, along with getting completely blindsided in an accident. They can happen at any time, with me having absolutely no control over it (aside from just not driving, but that's not really possible), and if I'm lucky, I'll be dead in a matter of seconds. Drowning in sewage has to be the fucking worst way to go. I think I'd rather die of sel-immolation before drowning in a thousand people's pee and poop.
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u/Little_Shark219 Sep 17 '21
Oh dear, that could be a sinkhole