Depth of the water table?

I was unsuccessful in using the web to get a map of water table depths in Chicago. I would like to know where this information can be found. An accuracy of 3 feet would be fine.

lemonie8 years ago
You'd think that the US Geological survey would be you're best source?

orksecurity8 years ago
Note that this depends on your own local geography -- and not just surface geography. And these days it also depends on how much humans have been disrupting natural water flow. I'd suggest you ask your local town government, and/or local well-digging businesses... or the geology department of a nearby college. They're the ones who are mostly likely to know what's happening in your neighborhood.