Results shown on the map are based on all screening operations carried out within city limits between 2007 and 2020. Screening shows us whether there is lead in the tap water.

For buildings that have not been screened yet, results are based on the year of construction (before 1970) and the number of dwellings (fewer than eight).

Data on water fountains and replacements of lead water service lines are not included in the results being presented.

Last update including 2020 screening results: December 8, 2020.