Call them up and see if they did not miss a decimal place on Ca in the 2nd analysis.
I thought the same thing, but it's legit.
[FONT=Arial, Helvetica, sans-serif]cbcool, with 39 pm nitrate-n, I hope you do not drink this water.[/FONT]
[FONT=Arial, Helvetica, sans-serif]Oh god no, I haul in spring water to drink.[/FONT]