All, I spent over an hour looking at various sites for sinkhole information, the most comprehensive site I found had information as of 2008! Another site that appeared to have lots of info required a paid subscription. NONE of the state or county sites appeared to have any up to date information, most went to 2015. Basically I could not find any site with decent up to date info, and NONE of the sites showed the remediated sinkhole less than 300 feet from our house 2012-2013.
I agree with a previous comment that the local governmental entities should be required to report ALL instances of these occurances, as well as the cause once this has been determined.
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Pennsylvania, for 60+ years, most recently, Allentown, now TV. 
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