This website provides an interpretation of drinking water test results you have received from a water testing laboratory. Enter your results into the boxes below and click "Submit" to get an interpretation of your water test results. If you are visiting this site and have not had your water tested, you should arrange to have your water tested through a state-certified water testing laboratory. A list of certified labs is available from the Pennsylvania Department of Environmental Protection. For recommended water tests and testing strategies, consult our water testing fact sheet. For more information on each contaminant listed here, consult the U.S. Environmental Protection Agency website.