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This is the full graph from my HVAC system log for April 2-7. This shows the temperature extremes that caused last night's storms and tornado warnings. As you can see the temperature dropped from about 81 degrees to about 58 degrees. That is a 20 degree drop. This isn't unheard of but its kind of interesting now that I have a system that will keep track of that.
This graph shows the cumulative number of unconventional wells drilled in PA from 2004-2016, alongside the cumulative number of DEP complaints as a whole and those categorized as water. © Public Herald