There are some things to keep in mind when you get your water from a well. While you might appreciate having full control of the quality of your water, it also means that you have no safety net. If anything goes wrong with your water supply, it could lead to problems, sometimes even serious illness.
So what do you need to do to make sure that your water is good quality? When your well was installed, the necessary filtration system should have been installed at the same time, but the fact is that water chemistry can change over time. A system that worked well for years might now be allowing something through that wasn’t there before. It could also be that your water filtration system has failed over time and doesn’t do the job as well as it used to. The only way for you to figure out exactly what is wrong is to have your water tested in a lab, and this will tell you if it is still good for human consumption.