Water Scores utilizes a proprietary algorithm to assess the grading. Data was obtained from multiple sources from 2010-2018 including but not limited to the US EPA (ECHO) Database, local company testing reports and QWT’s proprietary database.
Results and data are deemed reliable but not guaranteed nor warranted. All grades are solely our opinion. You should contact your local water utility company for the most current, accurate testing results.
What does your drinking water company grade?