Nitrates are one of the most dangerous carcinogens in drinking water, but not as dangerous as lead or arsenic. EPA allows up to 10 parts per million (ppm or mg/l) of nitrates in water. I won’t drink water with nitrates of 3 ppm. Natural levels in an unpollutated river are about .01 ppm
If you have nitrates in your water they’re coming from one of three sources: animal waste, fertilizer, or your septic leach field. If you have both nitrates and coliform bacteria in your well then you can pretty much assume that what’s taking place on the surface of your land is making its way quickly into the well below. Continue reading
