"It is, of course, possible that these multiple cases are not connected to one another, but out of abundance of caution, we are looking into any environmental factors at the school that may be a factor in their diagnoses."
The Blackstone River in the United States is a river that flows through Massachusetts and Rhode Island. It is 48 mi (77 km) long with a drainage area of 475 mi² (1229 km²).[1] It drains into the Seekonk River at Pawtucket, Rhode Island. Its long history of industrial use in the watershed has caused significant pollution, with a 1990 report from the United States Environmental Protection Agency describing it as “the most polluted river in the country because of high concentrations of toxic sediments.”[2]
goes to Google Maps
https://lemmy.today/pictrs/image/0ef32a5c-c9ef-4efb-b171-a35f4ba75c7b.png
https://en.wikipedia.org/wiki/Blackstone_River
Oh, great.