Earlier quoted context omitted.
What about: Strontium at 1.17 mg/L That seems like a misprint? Strontium is a fission byproduct. And that seems like a high amount if that's milligrams per liter.
Not really; strontium is quite common in the crust. In the oceans it occurs in the single-digit mg/L. This isn't a meaningful datapoint. The entire article doesn't show particularly concerning findings and the protests read more like nimbyism than environmental concern. Industrial processes have some non-zero level of impact and complaining when someone runs one that's not very polluting at all is letting the perfect…
While natural strontium (which is mostly the isotope strontium-88) is stable, the synthetic strontium-90 is radioactive and is one of the most dangerous components of nuclear fallout, as strontium is absorbed by the body in a similar manner to calcium. Natural stable strontium is not hazardous to health at low levels.
https://en.wikipedia.org/wiki/Strontium
I guess I didn't realize that strontium had a stable naturally-occuring isotope.