Name: Sandy B. Ford River Twp, Michigan UP (Zone 4b) (Zone 4b-maybe 5a)
I wonder if it was some sort of solvent that was used for cleaning something up? But it still doesn't seem like the odor would last so long, unless there's a saturated rag that got left behind...
“Think occasionally of the suffering of which you spare yourself the sight." ~ Albert Schweitzer C/F temp conversion