This is where you channel your inner CSI. Collect a sample in a sterile bottle—not a mason jar you found in the garage. Fill it up, label it with your address and the date, and mail it to a certified water lab. It costs about $40 to $150, depending on how paranoid you are. Surprising fact: the EPA doesn’t regulate private wells at all—so if you’re on well water, you’re basically your own water police. Congratulations, you’ve just been promoted to sheriff of your sink.
The lab will send you a report filled with numbers and chemical names that look like a spell from Harry Potter. Don’t panic. Compare your results to the EPA’s drinking water standards (available for free online). If anything is above the “maximum contaminant level,” time to call in a pro—or start hoarding bottled water like a doomsday prepper.
