Ohio EPA has released preliminary results for surface water samples collected throughout the Ohio River Basin. It appears that butyl acrylate was detected in surface water samples along this basin in several places. The detections are in the parts per billion (PPB) range which is quite low, however, there are no current drinking water or exposure standards for surface water for butyl acrylate. Without those risk standards, it is impossible to ascertain what current risks these results may pose to anyone fishing, swimming, or inadvertently drinking the water. Drinking water intakes from the river basin should remain OK as the water is treated before it is pumped into homes anyway. Anyone who lives near the areas listed in the following link should exercise caution and avoid direct contact with the river basin water and sediments.

https://epa.ohio.gov/static/Portals/47/citizen/response/East-Palestine-Ohio-River-Sampling-Data.pdf

Disclaimer: I do not work for any government agency. I do not represent Norfolk Southern or any of their contractors. I am an outside observer providing my knowledge to the public. My recommendations are based on an abundance of caution and coming in contact with the surface water may or may not pose an actual risk. But without concrete risk numbers to compare to from a toxicological report, it is impossible for anyone to say if the levels are safe or not for sure.