While inspecting your water, well and pump, your technician can take a sample to send out for testing. An accredited laboratory will send back a clean bill of health or an indication of problems with your system. In either case, with proper maintenance and, if needed, repairs, you'll have the comfort of knowing that the water coming out of the faucet is safe to drink and use.
To have your water tested, you can bring a sample yourself to:
McHenry Analytical Water Laboratory, Inc.
4314-A Crystal Lake Road
McHenry, IL 60050
815-344-4044
http://www.mchenrylab.com/