[cyanydeez]

I can tell you that many monitoring wells are rarely tested before they're "operational".

Typically they're just installed according to a site model and assumed to function like that.

Happened to koch along the Mississippi where they assured regulators for a decade that you'd never see their contamination. Eventually someone was sampling along the Mississippi and there it was.

[natmaka]

The Fukushima case has similar characteristics: https://insidestory.org.au/water-water-everywhere/