Boron Treatment in Drinking Water

Curious to know of the different methods for Boron removal from potable water. We are attempting to remove Boron coming out of a well that is intended to be used on agricultural pastures. 

Tests show Boron levels coming in at 2.3 ppm and at .004 ppm for arsenic.

Also wondering if anyone has heard of using humic acid to mitigate boron and arsenic uptake in plants?

Thank you. 

one update:

after more thorough water testing we see high levels of sodium and chloride, which apparently go hand in hand with boron.