Trying to determine which properties in D.C. are served by lead service lines is an inexact science at best. Residents are changing their routines, buying bottled water and filters, and generally avoiding tap water (and in some cases, steering clear of D.C. restaurants).
Sad: the high levels of lead in the tap water. Infuriating: WASA and the EPA knew about it and said nothing to the public.
Plus, WASA's response has been inconsistent, especially its attempts to educate the public on the problem.