Perhaps more crucially though, it's also the same thing someone would say who is actually innocent of leeching contaminants. Whether they are or not, nothing in this article is providing any useful evidence.
Otherwise, someone’s industrial process is responsible for those samples…
and if the only business in the area that matches the waste is…
As far as where those pollutants are coming from, multiple other commenters have noted there is another near by oil and gas processing equipment facility/manufacturer, a highway and multiple farmlands in the same area, all perfectly viable sources of pollution. Especially since as other commenters have pointed out a lot of these values appear to be just slightly above the local background values. And again given the overall lack of communication and the apparent need for manual monitoring, it seems pretty fair to say that you can’t just assume that the measured values are because of this pipe and not any of the other potential sources that are also going to be flowing into this ditch.
There is some overlap (high salinity, boron).
