AbbeysDad
Fish Gatherer
It's pretty common these days to have somewhat high nitrates in source water, especially in agricultural areas. I had a heck of a time with my well water due to a 95 acre farmers field across the road. I believe they used to use a fair amount of chemical fertilizer. Fortunately for me another farm began leasing the land and they rely on liquefied manure for fertilizer....lower air quality when the spray, but better water! So my friend @Byron pointed out a couple of my articles on high nitrates and here's a deep dive into filtration and water quality.