My wife works for a laboratory that tests water for businesses and private homes.
Get the water tested for all contaminates if you are on a private well. This is not cheap I know but you would be surprised sometimes to see what you are drinking.
There are a lot of homes being built today on old farm land, and the nitrate, nitrite, metals, or bacteria levels of these homes are unsafe. And these homes are $150,000-$250,000 range.
Farm fertilizers and animal waste do get in the water especially over a long periods of farming.
They built them and then think about the water. They can't sell them as they are now. Trying to get permission from the EPA to install automatic chlorination. but the EPA will only do that as a last resort. And that will not take care of the nitrate problem.
When a home sells in the county that is not on a public water system the water must be tested before the home can be sold. Realtors always call to get the water done a couple of days ahead of the signing of the deed. In the last three months the sale of four NEW homes were canceled on a days notice by the EPA for well water that was off the scale so to speak.
Rock
Jim