How to Know If Your Tap Water is Safe to Drink
To ensure that your tap water is safe, U.S. water systems that serve 100,000 or more households are required to provide annual online water quality reports. You can visit the EPA website to access the information for your water system. When you find the report, look into the summary section that identifies any higher contaminant levels than acceptable.
If your house was built before 1986, you can also consider performing your own water quality test. Houses built before then can have lead pipes, which have an increased possibility of water contamination compared to more modern properties.
You can buy a kit for $20 to $120 for tap water testing or request one from your water provider. For the most accurate results, the EPA advises utilizing a certified lab to test your drinking water quality. Take note, however, that there can be a waiting period if you choose a qualified lab for your testing.