If you get your water from your own well, you are kind of on your own to make sure the water is safe. Contamination can come from bacteria, or even chemicals in the groundwater.

Many wells in Illinois have arsenic from groundwater.

According to Steve Wilson with the Illinois State Water Survey, you can have a well assessment done to identify any possible issues.

Beyond that, the water survey offers a free online course in private well management.

For well testing, contact the Illinois State Water Survey for groundwater chemistry, and to test for potential bacterial contamination contact you County Health Department.